# NCBI Genetic Testing Registry E-Search

> NCBI Genetic Testing Registry E-Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Searches the NCBI Genetic Testing Registry (GTR) via E-utilities and returns matching UIDs for a given query string

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/ncbi-esearch-gtr
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ncbi-genetic-testing-registry-e-search-00a75246
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BTxKzni4KDSd07Xo2nOa6

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-genetic-testing-registry-e-search-00a75246 -d '<json body>'
```

Example prompt: Search the NCBI Genetic Testing Registry for genetic tests related to 'BRCA2' and give me the matching UIDs.

## When to prefer this

Use this endpoint when you need to programmatically search the NCBI Genetic Testing Registry for tests, genes, or conditions and retrieve structured UIDs for downstream lookups — especially when integrating GTR data into bioinformatics pipelines or clinical decision tools without direct NCBI API access.

## Known failure modes

- Empty UID list returned when query matches no GTR entries
- API returns error if query parameter is missing or malformed
- Rate limiting or payment failure resulting in HTTP 402
- Network timeout if NCBI E-utilities upstream is slow or unavailable
- Unexpected JSON structure if NCBI changes its E-utilities response format

## How this service works

Search the NCBI Genetic Testing Registry and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.

## Output

A JSON response containing a list of NCBI GTR UIDs that match the search query, suitable for further lookups in the Genetic Testing Registry.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ncbi-genetic-testing-registry-e-search-00a75246/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)