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AssayChain is a Quetzal Collective LLC product. For API questions, data partnership inquiries, and mineral intelligence discussion, the best place to reach the team and community is our Discord.

AssayChain Discord

The AssayChain community is on Discord. For questions about the API, payment integration, the field season data, or mineral processing research — start here. The builder monitors the channels.

Join AssayChain Discord →

x402 Protocol Docs

Building an x402-aware client or integrating the payment flow into your agent? The x402 docs cover the full protocol spec, SDK references for TypeScript and Python, and example integrations.

Read Docs →
Contribute a data stream

Labs, operators, and research institutions interested in contributing mineral processing data to AssayChain — assay results, field studies, or third-party reports — are welcome to reach out via Discord. We'll walk you through schema requirements and the onboarding process.

API not responding or data issue?

If an endpoint returns an unexpected error (not a 402 — that's correct), or if you believe a data value is incorrect relative to the on-chain EAS attestation, post in our Discord with the endpoint URL and response body. Include the run ID or commodity if relevant.

Base URL: https://assaychain.com/api
Free health check: GET /health →

Want to verify on-chain data yourself?

Every attested run log can be verified independently on EASScan (Base network) and via any IPFS gateway. No trust required — the provenance chain is fully public. See the Provenance page for the schema UIDs and verification steps.