# MyChem.info Chemical/Drug Query

> MyChem.info Chemical/Drug Query 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).

Search MyChem.info aggregated drug and chemical annotations by name or identifier, returning structured JSON data about the compound.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/s/mychem-chemical-query
- 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/mychem-info-chemical-drug-query-e31b9a8b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eRo-W3ITKyAAg-PubwXdP

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 mychem-info-chemical-drug-query-e31b9a8b -d '<json body>'
```

Example prompt: Can you look up the drug annotations for ibuprofen from MyChem.info — I need its chemical properties and any available metadata?

## When to prefer this

Use this endpoint when you need aggregated drug or chemical annotations from MyChem.info by name or identifier. Ideal for pharmacology research, drug discovery workflows, or any use case requiring structured chemical metadata without needing to integrate directly with MyChem.info. Prefer this over general web search when structured, machine-readable chemical data is required.

## Known failure modes

- No results found for an unknown or misspelled drug/chemical name
- Empty or ambiguous query string returns error or empty results
- Rate limiting or payment failure returns 402 or 429 error
- Query matches multiple compounds, returning ambiguous results
- MyChem.info upstream service unavailable causing 502/503 error

## How this service works

Search MyChem.info aggregated drug/chemical annotations by name or identifier (param q, e.g. aspirin). Query: ?q= Returns JSON.

## Output

A JSON object containing aggregated drug and chemical annotations from MyChem.info for the queried compound, including properties such as chemical identifiers, synonyms, pharmacological data, and other relevant metadata sourced from multiple databases.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mychem-info-chemical-drug-query-e31b9a8b/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)