{"artifact":{"apiPath":"/api/reports/tempo-x402-mcp-commerce-stack-2026-03/sources","byteLength":2911,"description":"Structured source ledger with source kinds, labels, notes, and URLs.","format":"sources","label":"Sources artifact","mimeType":"application/json; charset=utf-8","priceUsdc":0,"sha256":"f349d9670062576aa3cbfcd604602f8c3e2f6ec7a234c674e695cfdbdff36338","status":"live"},"document":{"counts":{"ecosystem":6,"official":5,"total":11},"generatedAt":"2026-03-22T00:00:00.000Z","slug":"tempo-x402-mcp-commerce-stack-2026-03","sources":[{"kind":"official","label":"Tempo Mainnet launch","note":"March 18, 2026 launch post covering Tempo Mainnet and the public positioning of MPP.","url":"https://tempo.xyz/blog/mainnet"},{"kind":"official","label":"Tempo docs","note":"Official developer docs for wallets, payments, and mainnet integration.","url":"https://docs.tempo.xyz/"},{"kind":"official","label":"x402 welcome","note":"Canonical x402 overview covering the HTTP 402 flow, payment proof, and facilitator model.","url":"https://docs.cdp.coinbase.com/x402/welcome"},{"kind":"official","label":"MCP specification","note":"June 2025 MCP spec defining tools, resources, prompts, and OAuth-based authorization.","url":"https://modelcontextprotocol.io/specification/2025-06-18"},{"kind":"official","label":"MCP Server with x402","note":"Official Coinbase guide showing how paid x402 endpoints can sit behind MCP tools.","url":"https://docs.cdp.coinbase.com/x402/mcp-server"},{"kind":"ecosystem","label":"Vercel x402-mcp","note":"Production bridge pattern that combines MCP tooling with x402-paid resources.","url":"https://vercel.com/blog/introducing-x402-mcp-open-protocol-payments-for-mcp-tools"},{"kind":"ecosystem","label":"Privy on Tempo MPP","note":"Explains how MPP extends request-based payments with sessions and broader payment-method support.","url":"https://privy.io/blog/building-on-privy-with-tempo-machine-payments-protocol"},{"kind":"ecosystem","label":"Alchemy x402 vs MPP","note":"Technical comparison that helps clarify where x402 ends and MPP starts.","url":"https://www.alchemy.com/blog/x402-vs-mpp-comparing-agent-payment-protocols"},{"kind":"ecosystem","label":"Panewslab x402 surge","note":"Late-October 2025 reporting on x402scan daily and cumulative transaction growth.","url":"https://www.panewslab.com/en/articles/7c3be5b3-b0de-4405-adbd-af9a16d4ae09"},{"kind":"ecosystem","label":"O-mega Tempo guide","note":"March 2026 guide citing x402 cumulative transactions and settled volume milestones.","url":"https://o-mega.ai/articles/tempo-and-agentic-payments-the-complete-guide-2026"},{"kind":"ecosystem","label":"DeFiPrime MPP vs x402","note":"Public comparison used here for the Coinbase 50 million transaction claim and protocol framing.","url":"https://defiprime.com/stripe-mpp-vs-x402"}],"title":"Tempo, x402, and the MCP Commerce Stack"},"generatedAt":"2026-05-04T00:15:53.628Z","kind":"deep_report_sources","operatorAccess":null,"payer":null}