# NCBI Assembly ESearch via clonecho

> NCBI Assembly ESearch via clonecho 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).

Searches the NCBI genome Assembly database using NCBI E-utilities and returns matching UIDs for a given query string.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/ncbi-esearch-assembly
- 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/ncbi-assembly-esearch-via-clonecho-936f491a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-bOXwTATFOiPGSTNCJZga

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 ncbi-assembly-esearch-via-clonecho-936f491a -d '<json body>'
```

Example prompt: Search the NCBI genome Assembly database for 'Homo sapiens reference genome' and give me the matching UIDs.

## When to prefer this

Use this endpoint when you need to programmatically find NCBI genome Assembly UIDs for a given organism or assembly name, especially when you want to pay per-call via x402 rather than managing NCBI API keys directly. Ideal for bioinformatics pipelines that need to resolve assembly identifiers before fetching detailed records.

## Known failure modes

- Empty result set if query matches no assemblies — returns zero UIDs
- Malformed or overly broad query may return too many results or be rejected by NCBI E-utilities
- Network or upstream NCBI API downtime causing request failure
- Missing or empty query parameter returns error or empty response
- NCBI rate limiting if too many requests are made in quick succession

## How this service works

Search NCBI genome Assembly and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.

## Output

A JSON object containing NCBI Assembly UIDs matching the search query, along with metadata such as result count and query translation, as returned by the NCBI E-utilities ESearch API.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ncbi-assembly-esearch-via-clonecho-936f491a/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)