{"uid":"cap_ro7cy4nsPCCTd5fecGKz3","slug":"ncbi-taxonomy-lookup-by-taxon-a11891bb","name":"NCBI Taxonomy Lookup by Taxon","description":"NCBI Taxonomy lookup by tax id or scientific name - rank, common name, named lineage, genome assembly count, gene counts and child taxa","url":"https://saylorinnovations.com/api/species/taxonomy/:taxon?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","pathParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["taxon"],"properties":{"taxon":{"type":"string","description":"NCBI tax id or scientific name in the path, e.g. 9606, Canis%20lupus"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["tax_id","scientific_name"],"properties":{"url":{"type":"string","description":"Canonical URL"},"rank":{"type":["string","null"],"description":"Rank, 1 is highest"},"genes":{"type":["number","null"],"description":"Number of genes annotated for this taxon in NCBI Gene"},"source":{"type":"string","description":"Data source the values come from"},"tax_id":{"type":"number","description":"Tax id identifier"},"lineage":{"type":"array","description":"Ancestors of the taxon from root to parent, each with NCBI tax id, name and rank"},"blast_name":{"type":["string","null"],"description":"Blast name"},"common_name":{"type":["string","null"],"description":"Common name"},"genomic_moltype":{"type":["string","null"],"description":"Genomic moltype"},"scientific_name":{"type":"string","description":"Scientific name"},"child_taxa_count":{"type":"number","description":"Number of child taxa"},"genome_assemblies":{"type":["number","null"],"description":"Genome assemblies"},"protein_coding_genes":{"type":["number","null"],"description":"Protein coding genes"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pPMui-l5ivPhHuSnbcXr-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns taxonomic rank, common name, named lineage, genome assembly count, gene counts, and child taxa for a given NCBI taxon ID or scientific name.","exampleAgentPrompt":"Can you look up the NCBI taxonomy for Homo sapiens — I need the rank, lineage, common name, genome assembly count, gene counts, and any child taxa?","exampleUseCases":[{"title":"Species classification for research pipeline","prompt":"I need full taxonomy info for Canis lupus familiaris — give me its rank, named lineage, common name, gene counts, and genome assembly count from NCBI."},{"title":"Identifying child taxa of a genus","prompt":"What are the child taxa of the genus Panthera according to NCBI taxonomy? I also want the lineage and rank info."},{"title":"Taxon ID resolution for database integration","prompt":"I have NCBI taxon ID 9606 — can you resolve it to its scientific name, common name, taxonomic rank, and lineage so I can enrich my species database?"}],"resultDescription":"Returns the taxonomic rank (e.g. species, genus, family), common name, full named lineage array, number of genome assemblies, gene counts, and list of child taxa for the queried organism — sourced from NCBI Taxonomy.","failureModes":["Unknown or misspelled taxon name returns 404 or empty result","Ambiguous scientific name with multiple matches may return unexpected taxon","Taxon IDs that are deprecated or merged in NCBI may return no result","Network timeout or upstream NCBI service unavailability"],"whenToPreferThis":"Use this endpoint when you need authoritative NCBI-sourced taxonomic classification data including lineage, genome assembly counts, and gene counts for a specific organism identified by scientific name or NCBI taxon ID. Prefer this over general web searches when structured, machine-readable taxonomy data is required for bioinformatics pipelines, database enrichment, or research workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T19:25:11.158Z","isFirstParty":false,"canonicalSlug":"ncbi-taxonomy-lookup-by-taxon-a11891bb"}