# clonecho.builda.company Drug/Chemical Cross-Reference Resolver

> clonecho.builda.company Drug/Chemical Cross-Reference Resolver 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).

Resolves a drug or chemical name to its cross-referenced IDs across DrugBank, ChEBI, ChEMBL, PubChem, and UNII databases via MyChem.info

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/chem-info
- 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/clonecho-builda-company-drug-chemical-cross-reference-resolver-3fff8920
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o_Gt_UJGYxnyVDhUTNESX

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 clonecho-builda-company-drug-chemical-cross-reference-resolver-3fff8920 -d '<json body>'
```

Example prompt: Can you look up the DrugBank, ChEMBL, ChEBI, PubChem, and UNII IDs for metformin?

## When to prefer this

Use this endpoint when you need to map a human-readable drug or chemical name to standardized database identifiers (DrugBank, ChEBI, ChEMBL, PubChem, UNII) for use in cheminformatics pipelines, pharmaceutical research, or regulatory workflows. Prefer this over manual database lookups or broad search APIs when you specifically need cross-database ID resolution for pharma/biotech compounds.

## Known failure modes

- Drug or chemical name not found in MyChem.info — returns empty or null result
- Ambiguous query matches multiple compounds — may return the most common match
- Payment required (402) if USDC not provided
- Rate limiting or service unavailability from upstream MyChem.info
- Partial results if the chemical is only indexed in some but not all databases

## How this service works

PHARMA: drug/chemical cross-reference resolver (MyChem) — DrugBank/ChEBI/ChEMBL/PubChem/UNII IDs. ?q=name. Returns JSON.

## Output

A JSON object containing cross-referenced identifiers for the queried drug or chemical across major pharmaceutical databases including DrugBank, ChEBI, ChEMBL, PubChem, and UNII, along with any associated chemical metadata returned by MyChem.info.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clonecho-builda-company-drug-chemical-cross-reference-resolver-3fff8920/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)