{"version":"https://jsonfeed.org/version/1.1","title":"SourceMint Updates","home_page_url":"https://sourcemint-api.nap6281.chatgpt.site/updates","feed_url":"https://sourcemint-api.nap6281.chatgpt.site/feed.json","authors":[{"name":"SourceMint","url":"https://sourcemint-api.nap6281.chatgpt.site"}],"items":[{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#free-mcp-discovery-for-evidence-agents","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#free-mcp-discovery-for-evidence-agents","title":"SourceMint now speaks MCP","summary":"Agents can connect to a free Streamable HTTP MCP endpoint to compare products, inspect exact prices and payment steps, and run the fixed demo.","content_text":"Connect an MCP client to https://sourcemint-api.nap6281.chatgpt.site/api/mcp. The stateless server exposes list_products, get_payment_instructions, and run_fixed_demo without an account, API key, or payment. It is deliberately read-only and never holds or signs a buyer wallet; paid evidence work still occurs directly through SourceMint's x402 HTTP endpoints after the buyer applies its own spending policy.","date_published":"2026-08-10T16:42:05.384Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#one-tenth-cent-web-evidence-extraction","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#one-tenth-cent-web-evidence-extraction","title":"Web evidence extraction now costs one tenth of a cent","summary":"SourceMint extraction is now $0.001 USDC per successful request, down from $0.005, with the same source hashes and evidence metadata.","content_text":"Current x402 web-data competitors price high-volume extraction below half a cent, while small agent utilities commonly start at $0.001. SourceMint has moved its extraction endpoint to that $0.001 entry point to reduce buyer friction. Claim verification remains $0.01 and full citation auditing remains $0.05 because they perform multi-source evidence analysis rather than single-page normalization.","date_published":"2026-08-09T16:38:12.192Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#clean-agent-discovery-contract","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#clean-agent-discovery-contract","title":"SourceMint's agent discovery contract validates cleanly","summary":"All three paid evidence endpoints now pass the x402scan-compatible discovery audit with explicit pricing, schemas, and authentication modes.","content_text":"Agents can discover extraction at $0.005, claim verification at $0.01, and citation auditing at $0.05 from the public OpenAPI contract. The same contract identifies the two free routes as unprotected and exposes machine-readable request schemas, x402 payment requirements, and buyer guidance. This release resolves every warning reported by the independent discovery validator without changing endpoint prices or output behavior.","date_published":"2026-08-09T12:37:02.393Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#try-citation-audit-without-a-wallet","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#try-citation-audit-without-a-wallet","title":"Test the citation-audit contract without a wallet","summary":"A new fixed-input POST demo lets agents validate SourceMint integration code before making an x402 payment.","content_text":"POST the documented Example Domain request to /api/demo/audit-citations to receive a fixed illustrative response. The route is intentionally locked to one public input so it demonstrates the request and response contract without becoming an unrestricted free verification service. Live retrieval, source timestamps, and hashes remain available from the paid endpoint.","date_published":"2026-08-08T20:33:16.730Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#free-machine-readable-product-catalog","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#free-machine-readable-product-catalog","title":"One free catalog for every SourceMint product","summary":"Agents can now compare current prices, inputs, examples, and purchase URLs with one free request to /api/catalog.","content_text":"The catalog requires no wallet, account, API key, or payment. It publishes exact Base USDC amounts alongside example request bodies and links to the paid x402 endpoints. This reduces discovery work before an agent decides whether a SourceMint result fits its budget and task.","date_published":"2026-08-08T00:53:58.866Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#introductory-pricing-for-agent-evidence","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#introductory-pricing-for-agent-evidence","title":"Lower introductory pricing for evidence APIs","summary":"Claim verification now costs $0.01 USDC and full citation auditing costs $0.05, with no account or API key.","content_text":"Live x402 marketplace research shows many agent utilities priced between fractions of a cent and five cents per request. SourceMint has moved claim verification to $0.01 and citation auditing to $0.05 while keeping extraction at $0.005. The output contracts, source hashes, proof hashes, and Base USDC settlement flow are unchanged.","date_published":"2026-08-07T16:52:51.708Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#source-grounded-citation-audits-for-agents","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#source-grounded-citation-audits-for-agents","title":"Source-grounded citation audits are live","summary":"SourceMint now checks a multi-sentence answer against up to ten cited public sources and returns sentence-level coverage plus a tamper-evident proof hash.","content_text":"The new audit-citations endpoint costs $0.25 USDC per call on Base. It extracts cited pages, maps substantive sentences to the strongest matching passages, labels support coverage, and hashes the complete evidence bundle. The method is deliberately transparent: lexical evidence matching, not an unsupported claim of perfect factual truth.","date_published":"2026-08-07T05:40:30.000Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#sourcemint-listed-on-x402scan","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#sourcemint-listed-on-x402scan","title":"SourceMint is listed on x402scan","summary":"All three pay-per-result evidence APIs are now publicly discoverable on x402scan.","content_text":"The marketplace listing exposes extraction at $0.005, single-claim verification at $0.05, and full citation auditing at $0.25. Each endpoint uses x402 v2, native USDC on Base, and accountless payment. Agentic Market validation also passes for all three Bazaar discovery contracts.","date_published":"2026-08-07T05:07:00.000Z"},{"id":"https://sourcemint-api.nap6281.chatgpt.site/updates#why-sourcemint-publishes-source-hashes","url":"https://sourcemint-api.nap6281.chatgpt.site/updates#why-sourcemint-publishes-source-hashes","title":"Why SourceMint publishes source hashes","summary":"A citation URL is useful; a retrieval timestamp and source-content hash make the evidence reproducible.","content_text":"Every SourceMint extraction includes the canonical source URL, retrieval time, and SHA-256 of the retrieved bytes. Verification products also publish a combined bundle hash. This lets downstream agents preserve evidence lineage and detect when two reports were built from different source material.","date_published":"2026-08-06T20:00:00.000Z"}]}