{"domain":"assaychain.com","count":1,"changes":[{"captured_at":"2026-10-03T00:58:03","card_hash":"71cbc41e9d6895f47312ffaed50f3bff509f55d5684bd3c9be27c29fdd78edf9","previous_card_hash":null,"diff":{"skills_added":[{"id":"ask-grounded","name":"Grounded Mineral Intelligence Q&A","description":"Ask any question about critical minerals and receive a grounded answer synthesized by Groq llama-3.1-8b-instant strictly from the 195-file attested corpus (20 commodity JSONs + 175 district profiles). Each answer cites the source passages by IPFS CID. Useful for compliance research, procurement due diligence, and sourcing decision support. $0.10 USDC per call via x402. Idempotent — replaying the same payment header returns the same cached answer.","tags":["RAG","grounded QA","critical minerals","compliance research","Groq","LLM","EAS attestation","IPFS provenance","x402"],"inputModes":["text/plain"],"outputModes":["application/json"]},{"id":"benchmark-query","name":"Critical Mineral Commodity Benchmark","description":"Returns USGS Mineral Commodity Summaries benchmark data for one of 20 critical minerals: copper, gold, silver, lithium, cobalt, nickel, manganese, graphite, antimony, gallium, germanium, platinum_group, rare_earths, tellurium, tin, titanium, tungsten, uranium, vanadium, zinc. Response includes spot price, grade benchmarks, production by country, recovery benchmarks, chemistry penalty elements, IPFS CID, and EAS attestation UID on Base. Free (rate-limited).","tags":["critical minerals","USGS","benchmark","commodities","supply chain","EAS attestation","IPFS","UFLPA","EU Battery Regulation","ESG"],"inputModes":["text/plain"],"outputModes":["application/json"]},{"id":"district-lookup","name":"Mining District Profile Lookup","description":"Returns an attested profile for one of 175 USGS mining districts across the US, Canada, and Mexico. Each profile includes district name, state/province, primary commodities, known deposits, historical production context, IPFS CID, and EAS attestation UID on Base. Useful for supply-chain provenance tracing, UFLPA origin verification, and DoD/DFC domestic sourcing assessments. $0.50 USDC per call via x402.","tags":["mining districts","USGS","provenance","supply chain","domestic sourcing","UFLPA","DoD","DFC","EAS attestation","IPFS"],"inputModes":["text/plain"],"outputModes":["application/json"]},{"id":"price-snapshot","name":"Daily Mineral Market Context","description":"Attested daily bundle for 20 critical minerals: spot price, Baltic Dry Index, WTI crude, producing-country FX rate, LME warehouse stock. FRED + LBMA sourced. EAS-attested weekly on Base. Free (rate-limited).","tags":["price","BDI","WTI","FX","LME","market-context","ESG","supply-chain","FRED","LBMA"],"inputModes":["text/plain"],"outputModes":["application/json"]}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"AssayChain Mineral Intelligence"},{"field":"description","before":null,"after":"On-chain critical mineral intelligence API. Returns USGS commodity benchmarks, mining district profiles, and grounded RAG answers synthesized from 195 EAS-attested files (Base mainnet). Every response includes IPFS CIDs and EAS attestation UIDs for verifiable provenance. Core USGS benchmark and price-snapshot endpoints are free (rate-limited); advanced endpoints use x402 micropayments (from $0.10 USDC per call, Base network) — no API keys required."},{"field":"version","before":null,"after":"1.0.0"},{"field":"url","before":null,"after":"https://assaychain.com/api"},{"field":"documentationUrl","before":null,"after":"https://assaychain.com/api.html"},{"field":"capabilities","before":null,"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false}},{"field":"provider","before":null,"after":{"organization":"Quetzal Collective LLC","url":"https://assaychain.com"}}],"other_changed":true,"is_empty":false,"human_summary":"added 4 skills · name ∅ → AssayChain Mineral Intelligence · description ∅ → On-chain critical mineral intelligence A · version ∅ → 1.0.0 · url ∅ → https://assaychain.com/api · documentationUrl ∅ → https://assaychain.com/api.html · capabilities ∅ → none · provider ∅ → Quetzal Collective LLC"}}]}