# Cellosaurus Cell Line Search

> Cellosaurus Cell Line Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Searches the Cellosaurus knowledge resource for cell line information by query string, returning structured JSON results.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/cellosaurus-cell-line-search
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cellosaurus-cell-line-search-d0ce6f77
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hskGFUpT5uUn3ZK89GAJX

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 cellosaurus-cell-line-search-d0ce6f77 -d '<json body>'
```

Example prompt: Search Cellosaurus for information about the HeLa cell line and return what you find about its origins and identifiers.

## When to prefer this

Use this endpoint when you need to look up biomedical cell line information from the authoritative Cellosaurus knowledge base, especially for research, bioinformatics pipelines, or verifying cell line identities and accession numbers. Prefer this over generic web search when structured, curated cell line data is required.

## Known failure modes

- Empty result set if no cell lines match the query string
- Invalid or missing query parameter returns an error
- Network timeout for very broad queries returning many results
- Malformed JSON if upstream Cellosaurus service is unavailable

## How this service works

Search the Cellosaurus cell line knowledge resource for {q}. Query: ?q= Returns JSON.

## Output

A JSON response containing Cellosaurus cell line records matching the query, including cell line names, accession numbers, species, tissue of origin, disease associations, and related metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cellosaurus-cell-line-search-d0ce6f77/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)