> ## Documentation Index > Fetch the complete documentation index at: https://docs.catalog.igvf.org/llms.txt > Use this file to discover all available pages before exploring further. # Coding Variants > Retrieve coding variants annotations. At least one of these fields is required: id, name, hgvsp, protein_id, uniprot_name, gene_name, transcript_id. alt_amino_acid filters by the alternate amino acid at the given position (single-letter code, use * for stop codon). Example: name = SAMD7_ENST00000335556_p.Gly253Asp_c.758_759delinsAC id = SAMD7_ENST00000335556_p.Gly253Asp_c.758_759delinsAC, hgvsp = p.Gly253Asp, gene_name = SAMD7, protein_id = ENSP00000334668, uniprot_name = SAMD7_HUMAN, amino_acid_position = 253 (range values are also available, e.g: range:0-2), alt_amino_acid = D, transcript_id = ENST00000335556. The limit parameter controls the page size and can not exceed 25. Pagination is 0-based. ## OpenAPI ````yaml /openapi/catalog-dev.openapi.json get /coding-variants openapi: 3.0.3 info: title: IGVF Catalog - Development description: >- Development IGVF Catalog OpenAPI compliant REST API built using tRPC with Express. Our database uses 0-based, half-open coordinates for genomic coordinates in the GRCh38 (human) and GRCm39 (mouse) reference genomes. Data is licensed under the Creative Commons license and the software is licensed under the MIT license. version: 1.2.0 - DEV servers: - url: https://catalog-api-dev.demo.igvf.org/api security: [] externalDocs: url: https://api-dev.catalog.igvf.org/openapi paths: /coding-variants: get: summary: Coding Variants description: >- Retrieve coding variants annotations. At least one of these fields is required: id, name, hgvsp, protein_id, uniprot_name, gene_name, transcript_id. alt_amino_acid filters by the alternate amino acid at the given position (single-letter code, use * for stop codon). Example: name = SAMD7_ENST00000335556_p.Gly253Asp_c.758_759delinsAC id = SAMD7_ENST00000335556_p.Gly253Asp_c.758_759delinsAC, hgvsp = p.Gly253Asp, gene_name = SAMD7, protein_id = ENSP00000334668, uniprot_name = SAMD7_HUMAN, amino_acid_position = 253 (range values are also available, e.g: range:0-2), alt_amino_acid = D, transcript_id = ENST00000335556. The limit parameter controls the page size and can not exceed 25. Pagination is 0-based. operationId: codingVariants parameters: - name: id in: query required: false schema: type: string - name: name in: query required: false schema: type: string - name: hgvsp in: query required: false schema: type: string - name: protein_id in: query required: false schema: type: string - name: uniprot_name in: query required: false schema: type: string - name: gene_name in: query required: false schema: type: string - name: amino_acid_position in: query required: false schema: type: string - name: alt_amino_acid in: query required: false schema: type: string enum: - A - C - D - E - F - G - H - I - K - L - M - 'N' - P - Q - R - S - T - V - W - 'Y' - '*' - name: transcript_id in: query required: false schema: type: string - name: page in: query required: false schema: type: number default: 0 - name: limit in: query required: false schema: type: number responses: '200': description: Successful response content: application/json: schema: type: array items: type: object properties: _id: type: string name: type: string nullable: true ref: type: string nullable: true alt: type: string nullable: true protein_name: type: string nullable: true protein_id: type: string nullable: true gene_name: type: string nullable: true transcript_id: type: string nullable: true aapos: type: number nullable: true hgvsp: type: string nullable: true hgvsc: type: string nullable: true refcodon: type: string nullable: true codonpos: type: number nullable: true SIFT_score: type: number nullable: true SIFT4G_score: type: number nullable: true Polyphen2_HDIV_score: type: number nullable: true Polyphen2_HVAR_score: type: number nullable: true VEST4_score: type: number nullable: true REVEL_score: type: number nullable: true MutPred_score: type: number nullable: true BayesDel_addAF_score: type: number nullable: true BayesDel_noAF_score: type: number nullable: true VARITY_R_score: type: number nullable: true VARITY_ER_score: type: number nullable: true VARITY_R_LOO_score: type: number nullable: true VARITY_ER_LOO_score: type: number nullable: true ESM1b_score: type: number nullable: true AlphaMissense_score: type: number nullable: true CADD_raw_score: type: number nullable: true source: type: string source_url: type: string required: - _id - name - ref - alt - protein_name - protein_id - gene_name - transcript_id - aapos - hgvsp - refcodon - codonpos - SIFT_score - SIFT4G_score - Polyphen2_HDIV_score - Polyphen2_HVAR_score - VEST4_score - REVEL_score - MutPred_score - BayesDel_addAF_score - BayesDel_noAF_score - VARITY_R_score - VARITY_ER_score - VARITY_R_LOO_score - VARITY_ER_LOO_score - ESM1b_score - AlphaMissense_score - CADD_raw_score - source - source_url additionalProperties: false default: $ref: '#/components/responses/error' components: responses: error: description: Error response content: application/json: schema: type: object properties: message: type: string code: type: string issues: type: array items: type: object properties: message: type: string required: - message additionalProperties: false required: - message - code additionalProperties: false ````