# EBI BioSamples Search

> EBI BioSamples Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Search the EBI BioSamples archive for biological sample metadata by free-text query

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/biosamples-search
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ebi-biosamples-search-9a84f571
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5yoQLYorroTq1vja3yQKg

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ebi-biosamples-search-9a84f571 -d '<json body>'
```

Example prompt: Search the EBI BioSamples archive for metadata on human pancreas tissue samples — give me whatever records match that query.

## When to prefer this

Use this endpoint when you need to search and retrieve biological sample metadata from the EMBL-EBI BioSamples archive, particularly for bioinformatics workflows, research literature support, or when linking experimental data to archived sample provenance. Prefer over general web search when structured biological metadata (organism, tissue, accession IDs) is required.

## Known failure modes

- Empty result set if the query term matches no samples in the archive
- Malformed or overly broad query returns too many results with low specificity
- EBI BioSamples backend unavailable returns an error response
- Invalid query syntax may return empty or error JSON
- Payment failure (x402) prevents access to the endpoint

## How this service works

Search the EBI BioSamples archive of biological sample metadata by query {q}. Query: ?q= Returns JSON.

## Output

A JSON response containing biological sample metadata records from the EBI BioSamples database matching the query, including sample identifiers, organism details, tissue types, experimental annotations, and related attributes.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ebi-biosamples-search-9a84f571/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)