# EBI Search ChEMBL Bioactivity Full-Text Search

> EBI Search ChEMBL Bioactivity Full-Text 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).

Full-text search of ChEMBL bioactivity data using the EBI Search cross-domain API, returning compound, target, and assay records as JSON.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/ebisearch-chembl
- 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-search-chembl-bioactivity-full-text-search-d8b7bfdc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i_47n_jnqJje6-mfSuSRO

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-search-chembl-bioactivity-full-text-search-d8b7bfdc -d '<json body>'
```

Example prompt: Search ChEMBL bioactivity data for 'aspirin' and return what you find about its targets and assays.

## When to prefer this

Use this endpoint when you need to search ChEMBL bioactivity data by free-text query — especially useful for drug discovery workflows, finding compound-target interactions, or exploring assay data by keyword. Prefer this over direct PubChem or UniProt lookups when bioactivity and pharmacological data from ChEMBL is specifically needed.

## Known failure modes

- Empty result set if query term has no matching ChEMBL records
- Malformed JSON if EBI Search upstream is unavailable
- Rate limiting or HTTP 402 payment required if USDC payment not processed
- Vague or overly broad queries returning too many low-relevance results
- EBI Search API downtime causing timeout or error response

## How this service works

Full-text search of ChEMBL bioactivity data for {q} via the EBI Search cross-domain API. Query: ?q= Returns JSON.

## Output

A JSON response from the EBI Search API containing ChEMBL bioactivity records matching the query — including compound names, target identifiers, assay descriptions, activity values, and related metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ebi-search-chembl-bioactivity-full-text-search-d8b7bfdc/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)