{"domain":"power-pack-x402.fly.dev","count":6,"changes":[{"captured_at":"2026-10-14T09:34:29.955200","card_hash":"64cba6a9c85d417693fb4d9a605516c6c0fb740fe379ce339d9055b2466d0934","previous_card_hash":"8a15561c63b378b5e80586cba51f7e84015d9bb2df56e28d2dead8b481281241","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"capabilities","before":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://raen-facilitator.fly.dev/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. 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The live 402 challenge is authoritative.","required":false}]}}],"other_changed":false,"is_empty":false,"human_summary":"capabilities extensions, pushNotifications, stateTran → extensions, pushNotifications, stateTran"}},{"captured_at":"2026-10-07T17:17:26.439718","card_hash":"8a15561c63b378b5e80586cba51f7e84015d9bb2df56e28d2dead8b481281241","previous_card_hash":"24945b6117e015f4c60b41222688307352c284ad2a6b0733955d89c68ad0ff01","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"capabilities","before":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://raen-facilitator.fly.dev, payTo treasury 0xfbc0eb7811d477e55261d956df39f0046e192240. The live 402 challenge is authoritative.","required":false}]},"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://raen-facilitator.fly.dev/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]}}],"other_changed":false,"is_empty":false,"human_summary":"capabilities extensions, pushNotifications, stateTran → extensions, pushNotifications, stateTran"}},{"captured_at":"2026-10-07T05:28:52.593122","card_hash":"24945b6117e015f4c60b41222688307352c284ad2a6b0733955d89c68ad0ff01","previous_card_hash":"4a14273541ac6a01c8a45f870f19df14a600cc3b4ca76c8a45b73e5cca0e1c66","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"capabilities","before":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]},"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://raen-facilitator.fly.dev, payTo treasury 0xfbc0eb7811d477e55261d956df39f0046e192240. The live 402 challenge is authoritative.","required":false}]}}],"other_changed":false,"is_empty":false,"human_summary":"capabilities extensions, pushNotifications, stateTran → extensions, pushNotifications, stateTran"}},{"captured_at":"2026-10-06T17:16:10.394740","card_hash":"4a14273541ac6a01c8a45f870f19df14a600cc3b4ca76c8a45b73e5cca0e1c66","previous_card_hash":"310ddb52861a3a83c1aa73697366796bc9c0291f6af1c6ba0d25246bd3142f2e","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"capabilities","before":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0xfbc0eb7811d477e55261d956df39f0046e192240. The live 402 challenge is authoritative.","required":false}]},"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]}}],"other_changed":false,"is_empty":false,"human_summary":"capabilities extensions, pushNotifications, stateTran → extensions, pushNotifications, stateTran"}},{"captured_at":"2026-10-06T08:44:51.359896","card_hash":"310ddb52861a3a83c1aa73697366796bc9c0291f6af1c6ba0d25246bd3142f2e","previous_card_hash":"4a14273541ac6a01c8a45f870f19df14a600cc3b4ca76c8a45b73e5cca0e1c66","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"capabilities","before":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]},"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0xfbc0eb7811d477e55261d956df39f0046e192240. The live 402 challenge is authoritative.","required":false}]}}],"other_changed":false,"is_empty":false,"human_summary":"capabilities extensions, pushNotifications, stateTran → extensions, pushNotifications, stateTran"}},{"captured_at":"2026-09-28T21:31:22","card_hash":"4a14273541ac6a01c8a45f870f19df14a600cc3b4ca76c8a45b73e5cca0e1c66","previous_card_hash":null,"diff":{"skills_added":[{"id":"email-scoring-guide","name":"Paid outreach email scoring guide","description":"Explains how to buy POST /api/score-email ($0.01 USDC on eip155:8453): body { subject (>=3 chars), body (>=20 chars), recipient_context? }; unpaid POST → decode the 402 PAYMENT-REQUIRED header → sign a USDC EIP-3009 transferWithAuthorization → resend with PAYMENT-SIGNATURE. Returns a quality score, predicted open rate (uncalibrated model estimate, not measured deliverability), spam risk, top 3 improvements, and a rewritten subject line. Invalid input returns 400 and is not charged.","tags":["outreach","email","sales","spam-risk","x402","usdc"],"inputModes":null,"outputModes":null},{"id":"free-sample-preview","name":"Free sample + schema preview","description":"Points to the free validation surfaces before any payment: GET /sample returns the exact paid output shape (synthetic), GET /openapi.json and GET /docs carry the full input/output contract, GET /pricing.md and GET /llms.txt describe the endpoint and price.","tags":["sample","openapi","free","pricing","preview"],"inputModes":null,"outputModes":null},{"id":"machine-readable-surfaces","name":"Machine-readable discovery surfaces","description":"Guides agents to this wall's free machine surfaces: /pricing.md, /llms.txt, /openapi.json, /about, /.well-known/x402.json (live 402 accepts), /.well-known/agent-card.json (this card), POST /a2a (A2A v1 JSON-RPC).","tags":["discovery","openapi","x402","a2a","json"],"inputModes":null,"outputModes":null}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Power Pack — Outreach Email Scoring (RAEN x402)"},{"field":"description","before":null,"after":"Score an outreach email for $0.01 USDC on eip155:8453: subject/body quality, predicted open rate, spam risk, tone, length, personalization, CTA clarity — plus top 3 improvements and a rewritten subject line. Pay per call via x402 — no API keys, no subscription. Free surfaces: GET /sample (synthetic output shape), GET /openapi.json, GET /docs, GET /pricing.md, GET /llms.txt, GET /about, GET /health, GET /.well-known/x402.json."},{"field":"version","before":null,"after":"1.0.0"},{"field":"protocolVersion","before":null,"after":"1.0"},{"field":"url","before":null,"after":"https://power-pack-x402.fly.dev/a2a"},{"field":"documentationUrl","before":null,"after":"https://power-pack-x402.fly.dev/pricing.md"},{"field":"preferredTransport","before":null,"after":"JSONRPC"},{"field":"supportedInterfaces","before":null,"after":[{"url":"https://power-pack-x402.fly.dev/a2a","transport":"JSONRPC","protocolBinding":"JSONRPC","protocolVersion":"1.0"}]},{"field":"securitySchemes","before":null,"after":{}},{"field":"security","before":null,"after":[]},{"field":"capabilities","before":null,"after":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://x402.org","description":"x402 v2 payment gating: USDC on eip155:8453, scheme exact, $0.01 per call, facilitator https://x402-agent-pay.com/facilitator, payTo treasury 0x7861db4efc14a1ed5dd8c96c528a3796560f1393. The live 402 challenge is authoritative.","required":false}]}},{"field":"provider","before":null,"after":{"organization":"Royal Agentic Enterprises","url":"https://power-pack-x402.fly.dev"}}],"other_changed":true,"is_empty":false,"human_summary":"added 3 skills · name ∅ → Power Pack — Outreach Email Scoring (RAE · description ∅ → Score an outreach email for $0.01 USDC o · version ∅ → 1.0.0 · protocolVersion ∅ → 1.0 · url ∅ → https://power-pack-x402.fly.dev/a2a · documentationUrl ∅ → https://power-pack-x402.fly.dev/pricing. · preferredTransport ∅ → JSONRPC · supportedInterfaces ∅ → https://power-pack-x402.fly.dev/a2a (JSO · securitySchemes ∅ →  · security ∅ → [] · capabilities ∅ → extensions, pushNotifications, stateTran · provider ∅ → Royal Agentic Enterprises"}}]}