{"protocol":"zfinia-machine-economy-graph-v0","generatedAt":"2026-09-09T11:23:55.535Z","entity":{"id":"evt-coinbase-x402-2025-05-06","type":"EVENT","typeTags":[],"name":"Coinbase introduces x402: stablecoin payments over HTTP 402","description":"On 6 May 2025 Coinbase Developer Platform published x402. Servers return HTTP 402 with payment requirements; clients retry with a signed payment, typically USDC on cheap L2s such as Base. The announcement explicitly targets APIs, apps and AI agents. Documentation and a reference implementation were pointed at x402.org and GitHub.","aliases":[],"urls":["https://www.coinbase.com/developer-platform/discover/launches/x402"],"identifiers":[],"firstParty":true,"evidence":{"sourceUrl":"https://www.coinbase.com/developer-platform/discover/launches/x402","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-05-06","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false}},"relationships":[{"id":"evt-coinbase-x402-2025-05-06:DISCUSSES:base","from":"evt-coinbase-x402-2025-05-06","type":"DISCUSSES","to":"base","validFrom":null,"validTo":null,"evidence":{"sourceUrl":"https://www.coinbase.com/developer-platform/discover/launches/x402","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-05-06","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false}},{"id":"evt-coinbase-x402-2025-05-06:DISCUSSES:cdp","from":"evt-coinbase-x402-2025-05-06","type":"DISCUSSES","to":"cdp","validFrom":null,"validTo":null,"evidence":{"sourceUrl":"https://www.coinbase.com/developer-platform/discover/launches/x402","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-05-06","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false}},{"id":"evt-coinbase-x402-2025-05-06:DISCUSSES:coinbase","from":"evt-coinbase-x402-2025-05-06","type":"DISCUSSES","to":"coinbase","validFrom":null,"validTo":null,"evidence":{"sourceUrl":"https://www.coinbase.com/developer-platform/discover/launches/x402","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-05-06","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false}},{"id":"evt-coinbase-x402-2025-05-06:DISCUSSES:x402","from":"evt-coinbase-x402-2025-05-06","type":"DISCUSSES","to":"x402","validFrom":null,"validTo":null,"evidence":{"sourceUrl":"https://www.coinbase.com/developer-platform/discover/launches/x402","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-05-06","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false}}],"events":[],"observations":[],"machineUrl":"/v1/graph/entities/evt-coinbase-x402-2025-05-06","humanUrl":"/entities/evt-coinbase-x402-2025-05-06"}