# EBI Search Complex Portal Full-Text Search

> EBI Search Complex Portal 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 2026-09-16).

Full-text search of the Complex Portal (protein complexes database) via the EBI Search API, returning structured JSON results.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/ebisearch-complex-portal
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ebi-search-complex-portal-full-text-search-e4db8fc4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0LZrU9DX6KavJjVwvPKP6

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-complex-portal-full-text-search-e4db8fc4 -d '<json body>'
```

Example prompt: Search the EBI Complex Portal for protein complexes related to 'RNA polymerase II' and show me what comes back.

## When to prefer this

Use this endpoint when you need to search the EMBL-EBI Complex Portal specifically for curated protein complex data, especially when looking for experimentally validated multiprotein assemblies with structured biological annotations. Prefer this over generic literature search when you need structured complex records with identifiers.

## Known failure modes

- Empty query string returns error or empty result set
- Very broad queries may return large or unranked result sets
- Non-biological or nonsensical query terms return no results
- EBI Search API downtime causes upstream failure
- Misspelled gene or protein names yield zero matches

## How this service works

Full-text search of the Complex Portal (protein complexes) for {q} via the EBI Search API. Query: ?q= Returns JSON.

## Output

A JSON object containing matching protein complex records from the Complex Portal, including complex identifiers, names, component proteins, species, and associated annotations as indexed by the EBI Search API.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ebi-search-complex-portal-full-text-search-e4db8fc4/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)