{"service":{"name":"Sentinel402","description":"Paid tools for AI agents over x402: a PII and secret guardrail that scans outbound payloads, a prompt-injection scanner for untrusted inputs, live citable data (crypto, stocks, news, weather, GitHub, sports, FX, npm/PyPI, ENS, IP geolocation), and an RCP/1 retrieval server backed by that live data.","url":"https://pii-guardrail.chronokey.workers.dev"},"realm":"pii-guardrail.chronokey.workers.dev","spec":{"core":"draft-httpauth-payment-01","method":"draft-evm-charge-00","intent":"draft-payment-intent-charge-00","discovery":"draft-payment-discovery-01","mcpTransport":"draft-payment-transport-mcp-00"},"methods":{"evm":{"intents":["charge"],"credentialTypes":["authorization"],"chainId":8453,"network":"eip155:8453","testnet":false,"asset":"USDC","currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","decimals":6,"eip712Domain":{"name":"USD Coin","version":"2","chainId":8453,"verifyingContract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f","maxTimeoutSeconds":300,"settlement":{"via":"x402 facilitator","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402","facilitatorFallback":"https://facilitator.payai.network","note":"MPP EIP-3009 authorizations are repackaged as x402 v2 payments and settled through the same facilitator into the same recipient wallet. The server never holds payer funds or keys; the facilitator sponsors gas and submits transferWithAuthorization on-chain."},"nonce":"payload.nonce MUST equal keccak256(challenge.id + challenge.realm) (0x-prefixed, 32 bytes)","receipt":{"header":"Payment-Receipt","fields":["status","method","timestamp","reference (tx hash)","challengeId","chainId"]}}},"transport":{"http":{"challenge":"WWW-Authenticate: Payment id=\"..\", realm=\"..\", method=\"evm\", intent=\"charge\", request=\"<b64url JCS>\"[, description][, digest][, expires]","credential":"Authorization: Payment <base64url credential JSON {challenge, payload, source?}>","receipt":"Payment-Receipt: <base64url receipt JSON>","errors":"402 + application/problem+json (RFC 9457, types under https://paymentauth.org/problems/) with a fresh challenge","negotiation":"Accept-Payment: evm/charge (optional; absent = accept anything)","bodyBinding":"Challenges for requests with bodies carry digest=\"sha-256=<base64>\"; retry the IDENTICAL body."},"mcp":{"endpoint":"https://pii-guardrail.chronokey.workers.dev/mcp","capabilities":"initialize result advertises capabilities.experimental.payment.methods = { evm: { intents: [\"charge\"] } }","challenge":"HTTP 402 (headers carry both x402 and MPP challenges); failed MPP credentials answer JSON-RPC error -32042/-32043 with data.challenges","credential":"params._meta[\"org.paymentauth/credential\"] on tools/call","receipt":"result._meta[\"org.paymentauth/receipt\"]"}},"resources":[{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/scan","path":"/v1/scan","method":"POST","name":"scan","description":"PII and secret guardrail for outbound agent payloads","intent":"charge","paymentMethod":"evm","amount":"20000","priceUsd":0.02,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/scan/batch","path":"/v1/scan/batch","method":"POST","name":"batch","description":"Batch PII/secret scan: up to 20 payloads, one payment","intent":"charge","paymentMethod":"evm","amount":"50000","priceUsd":0.05,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/audit","path":"/v1/audit","method":"POST","name":"audit","description":"Compliance audit report: PCI-DSS / GDPR / HIPAA / secrets verdicts","intent":"charge","paymentMethod":"evm","amount":"30000","priceUsd":0.03,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/data/{collection}","path":"/v1/data/{collection}","method":"GET","name":"data","description":"Live crypto, stocks, news, weather, GitHub, sports, FX, packages, ENS and IP data","intent":"charge","paymentMethod":"evm","amount":"3000","priceUsd":0.003,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/rcp/retrieve","path":"/rcp/retrieve","method":"POST","name":"rcp","description":"RCP/1 retrieval over live data, with citations","intent":"charge","paymentMethod":"evm","amount":"3000","priceUsd":0.003,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/mcp","path":"/mcp","method":"POST","name":"scan_for_pii","description":"MCP tool: PII/secret guardrail","intent":"charge","paymentMethod":"evm","amount":"20000","priceUsd":0.02,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/mcp","path":"/mcp","method":"POST","name":"scan_batch","description":"MCP tool: batch PII/secret scan","intent":"charge","paymentMethod":"evm","amount":"50000","priceUsd":0.05,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/mcp","path":"/mcp","method":"POST","name":"audit_compliance","description":"MCP tool: compliance audit verdicts","intent":"charge","paymentMethod":"evm","amount":"30000","priceUsd":0.03,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/mcp","path":"/mcp","method":"POST","name":"get_live_data","description":"MCP tool: live data by collection","intent":"charge","paymentMethod":"evm","amount":"3000","priceUsd":0.003,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/scan/prompt","path":"/v1/scan/prompt","method":"POST","name":"prompt","description":"Prompt-injection guardrail for untrusted agent inputs","intent":"charge","paymentMethod":"evm","amount":"10000","priceUsd":0.01,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/scan/prompt/batch","path":"/v1/scan/prompt/batch","method":"POST","name":"prompt_batch","description":"Batch prompt-injection scan: up to 20 texts, one payment","intent":"charge","paymentMethod":"evm","amount":"30000","priceUsd":0.03,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/mcp","path":"/mcp","method":"POST","name":"scan_prompt_injection","description":"MCP tool: prompt-injection guardrail","intent":"charge","paymentMethod":"evm","amount":"10000","priceUsd":0.01,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"},{"resource":"https://pii-guardrail.chronokey.workers.dev/v1/credits/buy","path":"/v1/credits/buy","method":"POST","name":"credits_pack","description":"Prepaid credit pack: $5 -> 5,000 units, spend via X-Credit-Token on every paid route","intent":"charge","paymentMethod":"evm","amount":"5000000","priceUsd":5,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","recipient":"0xAb59e91c7A4e280914681FA8eA2015f2e1826b4f"}],"alsoAccepts":{"x402":{"versions":[2,1],"scheme":"exact","discovery":"https://pii-guardrail.chronokey.workers.dev/.well-known/x402","note":"Same wallet, same facilitator. Every 402 carries x402 AND MPP challenges; pay with either."}},"discovery":{"openapi":"https://pii-guardrail.chronokey.workers.dev/openapi.json","agentJson":"https://pii-guardrail.chronokey.workers.dev/.well-known/agent.json","agentCard":"https://pii-guardrail.chronokey.workers.dev/.well-known/agent-card.json","llmsTxt":"https://pii-guardrail.chronokey.workers.dev/llms.txt","prices":"https://pii-guardrail.chronokey.workers.dev/prices"},"privacy":{"zeroRetention":true,"storesPayloads":false,"logsPayloads":false}}