## Estimate Cost `client.Protein.Design.EstimateCost(ctx, body) (*ProteinDesignEstimateCostResponse, error)` **post** `/compute/v1/protein/design/estimate-cost` Estimate the cost of a protein design run without creating any resource or consuming GPU. ### Parameters - `body ProteinDesignEstimateCostParams` - `BinderSpecification param.Field[ProteinDesignEstimateCostParamsBinderSpecificationUnion]` Binder specification for protein design. Use no_template for sequence-defined binders, structure_template for uploaded binder structures, or boltz_curated for Boltz-managed nanobody and antibody defaults. - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpec struct{…}` Binder specification starting from an existing 3D structure. Upload a CIF/PDB file and select which chains to include, which residues to keep, and which regions to redesign. Only chains included in chain_selection are part of the engine run. - `ChainSelection map[string, ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionUnion]` Chains selected from the uploaded binder structure, keyed by chain ID. Only chains listed here are included in the engine run — any chains omitted from this mapping are ignored. Each value defines which residues to keep (crop_residues). Omit design_motifs to include the chain as fixed scaffold context. - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpec struct{…}` Per-chain crop and design specification for a polymer chain in structure_template mode. - `ChainType Polymer` - `const PolymerPolymer Polymer = "polymer"` - `CropResidues ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecCropResiduesUnion` 0-indexed residue indices to retain from this chain, or 'all' to keep all residues. Residues not listed are removed before design. - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecCropResiduesArray []int64` - `type All string` - `const AllAll All = "all"` - `DesignMotifs []ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecDesignMotifUnion` Optional motifs (replacement or insertion) defining which regions to redesign on this chain. Omit this field to include the chain as fixed scaffold context. - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecDesignMotifReplacementMotif struct{…}` Replace a contiguous region of the sequence with a designed segment. Residues from start_index to end_index (inclusive) are replaced with a new sequence of the specified length. - `DesignLengthRange ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecDesignMotifReplacementMotifDesignLengthRange` Allowed sequence length range for designed regions - `Max int64` Maximum sequence length in residues. Must be >= min. - `Min int64` Minimum sequence length in residues - `EndIndex int64` 0-indexed end residue (inclusive) - `StartIndex int64` 0-indexed start residue (inclusive) - `Type Replacement` - `const ReplacementReplacement Replacement = "replacement"` - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecDesignMotifInsertionMotif struct{…}` Insert a designed segment at a specific position in the sequence. - `AfterResidueIndex int64` 0-indexed position after which to insert. Use -1 to insert before the first residue. - `DesignLengthRange ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecDesignMotifInsertionMotifDesignLengthRange` Allowed sequence length range for designed regions - `Max int64` Maximum sequence length in residues. Must be >= min. - `Min int64` Minimum sequence length in residues - `Type Insertion` - `const InsertionInsertion Insertion = "insertion"` - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplateLigandChainSpec struct{…}` Per-chain specification for a ligand chain in structure_template mode. The full ligand is always included. - `ChainType Ligand` - `const LigandLigand Ligand = "ligand"` - `Modality ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModality` - `const ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModalityPeptide ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModality = "peptide"` - `const ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModalityAntibody ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModality = "antibody"` - `const ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModalityNanobody ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModality = "nanobody"` - `const ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModalityCustomProtein ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModality = "custom_protein"` - `Structure ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecStructureUnion` How to provide a CIF structure file. URLs are auto-detected; base64 uploads must use chemical/x-cif media type. - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecStructureURLSource struct{…}` - `Type URL` - `const URLURL URL = "url"` - `URL string` - `type ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecStructureCifBase64Source struct{…}` - `Data string` Base64-encoded CIF file contents - `MediaType ChemicalXCif` Must be chemical/x-cif for CIF files - `const ChemicalXCifChemicalXCif ChemicalXCif = "chemical/x-cif"` - `Type Base64` - `const Base64Base64 Base64 = "base64"` - `Type StructureTemplate` - `const StructureTemplateStructureTemplate StructureTemplate = "structure_template"` - `Rules ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecRules` Constraints applied during sequence design - `ExcludedAminoAcids []string` Single-letter amino acid codes to exclude from design (e.g. ['C', 'P'] to exclude cysteine and proline) - `ExcludedSequenceMotifs []string` Sequence motifs to exclude from designed regions. Designs containing any of these motifs are filtered out before scoring. Use X as a single-residue wildcard (e.g. "NGS", "NXS"). - `MaxHydrophobicFraction float64` Maximum allowed fraction of hydrophobic residues (I, L, V, M, F, W) in designed regions. Designs exceeding this threshold are filtered out before scoring. Leave empty to disable. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpec struct{…}` Binder specification without a structural template. Define the binder from sequence components (fixed and designed segments) without providing a starting 3D structure. - `Entities []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityUnion` Binder entities composing the design. At least one must be a designed_protein entity. Additional fixed entities (RNA, DNA, ligands) can be included as part of the complex. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityDesignedProteinEntity struct{…}` Protein binder entity with designed and/or fixed segments. - `ChainIDs []string` Chain IDs to assign to this entity - `Type DesignedProtein` - `const DesignedProteinDesignedProtein DesignedProtein = "designed_protein"` - `Value string` Binder sequence specification. Fixed amino acids are written as literal single-letter codes. Designed regions are written as a length (fixed) or a length range (min..max). Example: "MKTAYI5..10VKSHFSRQ" means fixed MKTAYI, then 5-10 designed residues, then fixed VKSHFSRQ. "20" means 20 fully designed residues. "ACDE8GHI" means fixed ACDE, then 8 designed residues, then fixed GHI. - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityDesignedProteinEntityModificationUnion` Optional polymer modifications. Defaults to [] when omitted. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityDesignedProteinEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityDesignedProteinEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedProteinEntity struct{…}` A fixed protein entity whose sequence is not redesigned. - `ChainIDs []string` Chain IDs to assign to this entity - `Type Protein` - `const ProteinProtein Protein = "protein"` - `Value string` Amino acid sequence (one-letter codes) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedProteinEntityModificationUnion` Optional polymer modifications. Defaults to [] when omitted. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedProteinEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedProteinEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedRnaEntity struct{…}` - `ChainIDs []string` Chain IDs to assign to this entity - `Type Rna` - `const RnaRna Rna = "rna"` - `Value string` RNA nucleotide sequence (A, C, G, U, N) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedRnaEntityModificationUnion` Optional polymer modifications. Defaults to [] when omitted. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedRnaEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedRnaEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedDnaEntity struct{…}` - `ChainIDs []string` Chain IDs to assign to this entity - `Type Dna` - `const DnaDna Dna = "dna"` - `Value string` DNA nucleotide sequence (A, C, G, T, N) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedDnaEntityModificationUnion` Optional polymer modifications. Defaults to [] when omitted. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedDnaEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedDnaEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedLigandSmilesEntity struct{…}` - `ChainIDs []string` Chain IDs to assign to this entity - `Type LigandSmiles` - `const LigandSmilesLigandSmiles LigandSmiles = "ligand_smiles"` - `Value string` SMILES string representing the ligand - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecEntityFixedLigandCcdEntity struct{…}` - `ChainIDs []string` Chain IDs to assign to this entity - `Type LigandCcd` - `const LigandCcdLigandCcd LigandCcd = "ligand_ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'ATP', 'ADP') - `Modality ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModality` - `const ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModalityPeptide ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModality = "peptide"` - `const ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModalityAntibody ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModality = "antibody"` - `const ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModalityNanobody ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModality = "nanobody"` - `const ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModalityCustomProtein ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecModality = "custom_protein"` - `Type NoTemplate` - `const NoTemplateNoTemplate NoTemplate = "no_template"` - `Bonds []ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBond` Covalent bond constraints between atoms in the binder complex. If defining bonds where an atom is part of a designed protein chain, assume residue indices count designed regions as the minimum length. Example: designed protein "1..3C1..2", "C" is residue 1 (0-indexed) of the designed protein. - `Atom1 ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom1Union` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom1LigandAtom struct{…}` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB). Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID containing the atom - `Type LigandAtom` - `const LigandAtomLigandAtom LigandAtom = "ligand_atom"` - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom1PolymerAtom struct{…}` - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB) - `ChainID string` Chain ID containing the atom - `ResidueIndex int64` 0-based residue index - `Type PolymerAtom` - `const PolymerAtomPolymerAtom PolymerAtom = "polymer_atom"` - `Atom2 ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom2Union` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom2LigandAtom struct{…}` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB). Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID containing the atom - `Type LigandAtom` - `const LigandAtomLigandAtom LigandAtom = "ligand_atom"` - `type ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecBondAtom2PolymerAtom struct{…}` - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB) - `ChainID string` Chain ID containing the atom - `ResidueIndex int64` 0-based residue index - `Type PolymerAtom` - `const PolymerAtomPolymerAtom PolymerAtom = "polymer_atom"` - `Rules ProteinDesignEstimateCostParamsBinderSpecificationNoTemplateBinderSpecRules` Constraints applied during sequence design - `ExcludedAminoAcids []string` Single-letter amino acid codes to exclude from design (e.g. ['C', 'P'] to exclude cysteine and proline) - `ExcludedSequenceMotifs []string` Sequence motifs to exclude from designed regions. Designs containing any of these motifs are filtered out before scoring. Use X as a single-residue wildcard (e.g. "NGS", "NXS"). - `MaxHydrophobicFraction float64` Maximum allowed fraction of hydrophobic residues (I, L, V, M, F, W) in designed regions. Designs exceeding this threshold are filtered out before scoring. Leave empty to disable. - `type ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpec struct{…}` Boltz-managed curated binder specification. Choose a curated nanobody or antibody family and Boltz will select from maintained template lists during design. The curated lists are managed by Boltz and may be updated over time to improve quality and coverage. - `Binder ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecBinder` Boltz-managed curated binder family. Boltz maintains and may update the underlying template lists on behalf of customers. - `const ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecBinderBoltzNanobody ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecBinder = "boltz_nanobody"` - `const ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecBinderBoltzAntibody ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecBinder = "boltz_antibody"` - `Type BoltzCurated` - `const BoltzCuratedBoltzCurated BoltzCurated = "boltz_curated"` - `Rules ProteinDesignEstimateCostParamsBinderSpecificationBoltzCuratedBinderSpecRules` Constraints applied during sequence design - `ExcludedAminoAcids []string` Single-letter amino acid codes to exclude from design (e.g. ['C', 'P'] to exclude cysteine and proline) - `ExcludedSequenceMotifs []string` Sequence motifs to exclude from designed regions. Designs containing any of these motifs are filtered out before scoring. Use X as a single-residue wildcard (e.g. "NGS", "NXS"). - `MaxHydrophobicFraction float64` Maximum allowed fraction of hydrophobic residues (I, L, V, M, F, W) in designed regions. Designs exceeding this threshold are filtered out before scoring. Leave empty to disable. - `NumProteins param.Field[int64]` Number of protein designs to generate. Must be between 10 and 1,000,000. - `Target param.Field[ProteinDesignEstimateCostParamsTargetUnion]` Target specification (structure template or template-free) - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTarget struct{…}` Target defined by an uploaded 3D structure (CIF or PDB file). Only chains included in chain_selection are used. - `ChainSelection map[string, ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionUnion]` Chains selected from the uploaded structure, keyed by chain ID. Only chains listed here are included in the engine run — any chains omitted from this mapping are ignored. Each value defines which residues to keep, which are epitope residues, and which are flexible. - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpec struct{…}` Per-chain specification for a polymer (protein/RNA/DNA) chain in a structure template target. - `ChainType Polymer` - `const PolymerPolymer Polymer = "polymer"` - `CropResidues ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpecCropResiduesUnion` 0-indexed residue indices to retain from this chain, or 'all' to keep all residues. Residues not listed are excluded from the engine run. - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpecCropResiduesArray []int64` 0-indexed residue indices to keep - `type All string` - `const AllAll All = "all"` - `EpitopeResidues []int64` 0-indexed residue indices where binder contact is desired (the epitope). All indices must be present in crop_residues. - `FlexibleResidues []int64` 0-indexed residue indices allowed to move during design (e.g. flexible loop regions). All indices must be present in crop_residues. - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetLigandChainSpec struct{…}` Per-chain specification for a ligand chain in a structure template target. The full ligand is always included. - `ChainType Ligand` - `const LigandLigand Ligand = "ligand"` - `Structure ProteinDesignEstimateCostParamsTargetStructureTemplateTargetStructureUnion` How to provide a CIF structure file. URLs are auto-detected; base64 uploads must use chemical/x-cif media type. - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTargetStructureURLSource struct{…}` - `Type URL` - `const URLURL URL = "url"` - `URL string` - `type ProteinDesignEstimateCostParamsTargetStructureTemplateTargetStructureCifBase64Source struct{…}` - `Data string` Base64-encoded CIF file contents - `MediaType ChemicalXCif` Must be chemical/x-cif for CIF files - `const ChemicalXCifChemicalXCif ChemicalXCif = "chemical/x-cif"` - `Type Base64` - `const Base64Base64 Base64 = "base64"` - `Type StructureTemplate` - `const StructureTemplateStructureTemplate StructureTemplate = "structure_template"` - `type ProteinDesignEstimateCostParamsTargetNoTemplateTarget struct{…}` Target defined by sequences only, without a 3D structure template - `Entities []ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityUnion` Entities (proteins, RNA, DNA, ligands) defining the target complex. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityProteinEntity struct{…}` - `ChainIDs []string` Chain IDs for this entity - `Type Protein` - `const ProteinProtein Protein = "protein"` - `Value string` Amino acid sequence (one-letter codes) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityProteinEntityModificationUnion` Post-translational modifications. Optional; defaults to an empty list when omitted. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityProteinEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityProteinEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityRnaEntity struct{…}` - `ChainIDs []string` Chain IDs for this entity - `Type Rna` - `const RnaRna Rna = "rna"` - `Value string` RNA nucleotide sequence (A, C, G, U, N) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityRnaEntityModificationUnion` Chemical modifications. Optional; defaults to an empty list when omitted. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityRnaEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityRnaEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityDnaEntity struct{…}` - `ChainIDs []string` Chain IDs for this entity - `Type Dna` - `const DnaDna Dna = "dna"` - `Value string` DNA nucleotide sequence (A, C, G, T, N) - `Cyclic bool` Whether the sequence is cyclic - `Modifications []ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityDnaEntityModificationUnion` Chemical modifications. Optional; defaults to an empty list when omitted. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityDnaEntityModificationCcdModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Ccd` - `const CcdCcd Ccd = "ccd"` - `Value string` CCD code from RCSB PDB (e.g. 'MSE' for selenomethionine, 'SEP' for phosphoserine) - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityDnaEntityModificationSmilesModification struct{…}` - `ResidueIndex int64` 0-based index of the residue to modify - `Type Smiles` - `const SmilesSmiles Smiles = "smiles"` - `Value string` SMILES string for the modification - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityLigandCcdEntity struct{…}` - `ChainIDs []string` Chain IDs for this ligand - `Type LigandCcd` - `const LigandCcdLigandCcd LigandCcd = "ligand_ccd"` - `Value string` CCD code (e.g., ATP, ADP) - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetEntityLigandSmilesEntity struct{…}` - `ChainIDs []string` Chain IDs for this ligand - `Type LigandSmiles` - `const LigandSmilesLigandSmiles LigandSmiles = "ligand_smiles"` - `Value string` SMILES string representing the ligand - `Type NoTemplate` - `const NoTemplateNoTemplate NoTemplate = "no_template"` - `Bonds []ProteinDesignEstimateCostParamsTargetNoTemplateTargetBond` Covalent bond constraints between atoms in the target complex. Atom-level ligand references currently support ligand_ccd only; ligand_smiles is unsupported. - `Atom1 ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom1Union` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom1LigandAtom struct{…}` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB). Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID containing the atom - `Type LigandAtom` - `const LigandAtomLigandAtom LigandAtom = "ligand_atom"` - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom1PolymerAtom struct{…}` - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB) - `ChainID string` Chain ID containing the atom - `ResidueIndex int64` 0-based residue index - `Type PolymerAtom` - `const PolymerAtomPolymerAtom PolymerAtom = "polymer_atom"` - `Atom2 ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom2Union` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom2LigandAtom struct{…}` Ligand atom reference. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB). Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID containing the atom - `Type LigandAtom` - `const LigandAtomLigandAtom LigandAtom = "ligand_atom"` - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetBondAtom2PolymerAtom struct{…}` - `AtomName string` Standardized atom name (verifiable in CIF file on RCSB) - `ChainID string` Chain ID containing the atom - `ResidueIndex int64` 0-based residue index - `Type PolymerAtom` - `const PolymerAtomPolymerAtom PolymerAtom = "polymer_atom"` - `Constraints []ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintUnion` Structural constraints (pocket and contact). Atom-level ligand references currently support ligand_ccd only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintPocketConstraint struct{…}` Constrains the binder to interact with specific pocket residues on the target. - `BinderChainID string` Chain ID of the binder molecule - `ContactResidues map[string, []int64]` Binding pocket residues keyed by chain ID. Each key is a chain ID (e.g. "A") and the value is an array of 0-indexed residue indices that define the pocket on that chain. - `MaxDistanceAngstrom float64` Maximum allowed distance in Angstroms between binder and pocket residues. Typical range: 4-8 A. - `Type Pocket` - `const PocketPocket Pocket = "pocket"` - `Force bool` Whether to force the constraint - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraint struct{…}` Contact constraint between two tokens. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `MaxDistanceAngstrom float64` Maximum distance in Angstroms - `Token1 ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken1Union` Ligand contact token. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken1PolymerContactToken struct{…}` - `ChainID string` Chain ID - `ResidueIndex int64` 0-based residue index - `Type PolymerContact` - `const PolymerContactPolymerContact PolymerContact = "polymer_contact"` - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken1LigandContactToken struct{…}` Ligand contact token. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Atom name. Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID - `Type LigandContact` - `const LigandContactLigandContact LigandContact = "ligand_contact"` - `Token2 ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken2Union` Ligand contact token. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken2PolymerContactToken struct{…}` - `ChainID string` Chain ID - `ResidueIndex int64` 0-based residue index - `Type PolymerContact` - `const PolymerContactPolymerContact PolymerContact = "polymer_contact"` - `type ProteinDesignEstimateCostParamsTargetNoTemplateTargetConstraintContactConstraintToken2LigandContactToken struct{…}` Ligand contact token. Atom-level ligand references currently support ligand_ccd entities only; ligand_smiles is unsupported. - `AtomName string` Atom name. Atom-level references to ligand_smiles entities are currently unsupported; use ligand_ccd instead. - `ChainID string` Chain ID - `Type LigandContact` - `const LigandContactLigandContact LigandContact = "ligand_contact"` - `Type Contact` - `const ContactContact Contact = "contact"` - `Force bool` Whether to force the constraint - `EpitopeLigandChains []string` Chain IDs of ligand entities that are part of the binding epitope. Ligands are marked as epitope in full (no residue-level selection). - `EpitopeResidues map[string, []int64]` Polymer chain residues where binder contact is desired (the epitope). Each key is a chain ID of a polymer entity, each value is an array of 0-indexed residue indices. - `IdempotencyKey param.Field[string]` Client-provided key to prevent duplicate submissions on retries - `WorkspaceID param.Field[string]` Target workspace ID (admin keys only; ignored for workspace keys) ### Returns - `type ProteinDesignEstimateCostResponse struct{…}` Estimate response with monetary values encoded as decimal strings to preserve precision. - `Breakdown ProteinDesignEstimateCostResponseBreakdown` Cost breakdown for the billed application. - `Application ProteinDesignEstimateCostResponseBreakdownApplication` - `const ProteinDesignEstimateCostResponseBreakdownApplicationStructureAndBinding ProteinDesignEstimateCostResponseBreakdownApplication = "structure_and_binding"` - `const ProteinDesignEstimateCostResponseBreakdownApplicationSmallMoleculeDesign ProteinDesignEstimateCostResponseBreakdownApplication = "small_molecule_design"` - `const ProteinDesignEstimateCostResponseBreakdownApplicationSmallMoleculeLibraryScreen ProteinDesignEstimateCostResponseBreakdownApplication = "small_molecule_library_screen"` - `const ProteinDesignEstimateCostResponseBreakdownApplicationProteinDesign ProteinDesignEstimateCostResponseBreakdownApplication = "protein_design"` - `const ProteinDesignEstimateCostResponseBreakdownApplicationProteinLibraryScreen ProteinDesignEstimateCostResponseBreakdownApplication = "protein_library_screen"` - `const ProteinDesignEstimateCostResponseBreakdownApplicationAdme ProteinDesignEstimateCostResponseBreakdownApplication = "adme"` - `CostPerUnitUsd string` Estimated cost per displayed unit as a decimal string, rounded up to 4 decimal places. This may include token-size multipliers or generation overhead; estimated_cost_usd is the authoritative total. - `NumUnits int64` Number of units shown for the estimate. For structure-and-binding, this is the requested number of samples. For protein and small-molecule design/screen endpoints, this is the requested number of proteins or molecules. - `Disclaimer string` - `EstimatedCostUsd string` Estimated total cost as a decimal string ### Example ```go package main import ( "context" "fmt" "github.com/boltz-bio/boltz-api-go" "github.com/boltz-bio/boltz-api-go/option" ) func main() { client := boltzapi.NewClient( option.WithAPIKey("My API Key"), ) response, err := client.Protein.Design.EstimateCost(context.TODO(), boltzapi.ProteinDesignEstimateCostParams{ BinderSpecification: boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationUnion{ OfProteinDesignEstimateCostsBinderSpecificationStructureTemplateBinderSpec: &boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpec{ ChainSelection: map[string]boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionUnion{ "B": boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionUnion{ OfProteinDesignEstimateCostsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpec: &boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpec{ CropResidues: boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecChainSelectionStructureTemplatePolymerChainSpecCropResiduesUnion{ OfIntArray: []int64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, }, }, }, }, Modality: boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecModalityPeptide, Structure: boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecStructureUnion{ OfProteinDesignEstimateCostsBinderSpecificationStructureTemplateBinderSpecStructureURLSource: &boltzapi.ProteinDesignEstimateCostParamsBinderSpecificationStructureTemplateBinderSpecStructureURLSource{ URL: "https://example.com", }, }, }, }, NumProteins: 10, Target: boltzapi.ProteinDesignEstimateCostParamsTargetUnion{ OfProteinDesignEstimateCostsTargetStructureTemplateTarget: &boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTarget{ ChainSelection: map[string]boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionUnion{ "A": boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionUnion{ OfProteinDesignEstimateCostsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpec: &boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpec{ CropResidues: boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetChainSelectionStructureTemplateTargetPolymerChainSpecCropResiduesUnion{ OfIntArray: []int64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, }, }, }, }, Structure: boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetStructureUnion{ OfProteinDesignEstimateCostsTargetStructureTemplateTargetStructureURLSource: &boltzapi.ProteinDesignEstimateCostParamsTargetStructureTemplateTargetStructureURLSource{ URL: "https://example.com", }, }, }, }, }) if err != nil { panic(err.Error()) } fmt.Printf("%+v\n", response.Breakdown) } ```