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NCBI GenBank Nucleotide Sequence Metadata Lookup
x402
NCBI GenBank Nucleotide Sequence Metadata Lookup is a paid API for AI agents from api.healthtravel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Searches NCBI GenBank nucleotide (nuccore) records by accession or search term and returns metadata including accession, title, sequence length, organism, molecule type, and last update date (no raw sequence).
Price / call$0.002
Success—
StatusUnknown
How this service works
NCBI GenBank nucleotide record search (nuccore): accession with version, title, sequence length, organism, molecule type and last update date. Metadata only, no sequence. Accepts an accession (e.g. NM_000546), a gene or any NCBI search term. Up to 10 records per call.
Output
Returns up to 10 GenBank nucleotide records per call, each containing: accession number with version, record title, sequence length (in base pairs), organism name, molecule type (e.g. mRNA, DNA), and last update date. No raw nucleotide sequence is returned.
Example use cases
Gene accession metadata retrieval
“Can you fetch the GenBank nucleotide metadata for accession NM_001301717? I need the organism name, molecule type, sequence length, and last update date.”
Search nucleotide records by gene name
“Search NCBI GenBank nucleotide records for the TP53 gene and give me up to 5 results — I want to see the accessions, titles, organisms, and sequence lengths.”
Verify GenBank record details
“I have the accession NM_007294 — can you confirm the title, organism, and molecule type for that GenBank nucleotide entry so I can verify it's the BRCA1 transcript I'm looking for?”
Technical details
Endpoint
GEThttps://api.healthtravel-api.workers.dev/api/health/genbank-nucleotide-seq?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need quick metadata about one or more NCBI GenBank nucleotide records without needing the full raw sequence. It is ideal for verifying accessions, checking organism and molecule type, or retrieving sequence length and title for up to 10 records at once. Prefer this over full-sequence downloads when bandwidth, cost, or processing overhead of raw FASTA data is a concern.
Side effects
- Accession not found — returns empty results if the accession does not exist in GenBank
- Invalid search term format — query contains disallowed characters or is outside the 2–100 character limit
- Ambiguous search term returns unrelated records — broad terms may surface many loosely matched records
- NCBI API rate limiting or downtime — upstream service temporarily unavailable
- Max parameter out of range — values outside 1–10 may be rejected or ignored
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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