{"id":552933,"name":"star365 Stablecoin Depeg Feed","description":"Stablecoin depeg measurements (deviation from 1.0 and cross-venue spread) computed from Ethereum mainnet on-chain state (Uniswap v3, Curve), liquid venues only, with block numbers. Real on-chain data, never simulated. Sold per request in AIC credits (x402 / A2A).","card_url":"https://riskfeed.star365.site/.well-known/agent-card.json","endpoint":"https://riskfeed.star365.site/a2a","protocol_version":"1.0","first_seen":"2026-11-05T22:14:58.483399+00:00","last_verified":"2026-11-05T22:14:58.483399+00:00","card":{"name":"star365 Stablecoin Depeg Feed","skills":[{"id":"stable-depeg","name":"Stablecoin depeg snapshot (on-chain, not simulated)","tags":["data","stablecoin","depeg","risk","market"],"examples":["{\"skill\":\"stable-depeg\"}","{\"skill\":\"stable-depeg\",\"pair\":\"USDC/USDT\"}"],"inputModes":["application/json"],"description":"Current deviation from 1.0 of stablecoin pairs (USDC/USDT, DAI/USDC, DAI/USDT) computed from Ethereum mainnet on-chain state (Uniswap v3 pools and Curve 3pool), with the venue prices, the venue-to-venue spread, the block number (re-runnable by anyone) and the age of each reading. Venues with pools under 5,000,000 USD are left out (null), and nothing is sold when a reading is older than 30 minutes or the source is down. Real on-chain data only: no simulated or modelled price is ever included. Optional pair (e.g. USDC/USDT). Price 1000 µAIC. Not investment advice. Price 1000 µAIC.","outputModes":["application/json"]},{"id":"stable-depeg-history","name":"Stablecoin depeg history, up to 24h (on-chain, not simulated)","tags":["data","stablecoin","depeg","history","market"],"examples":["{\"skill\":\"stable-depeg-history\",\"hours\":6}"],"inputModes":["application/json"],"description":"Time series (every ~10 minutes, up to 144 points per pair) of the same on-chain stablecoin depeg measurement over the last N hours (1–24, default 6). Optional pair. Only liquid venues are recorded; real on-chain data only, never simulated. Price 2000 µAIC. Not investment advice. Price 2000 µAIC.","outputModes":["application/json"]}],"version":"1.0.0","provider":{"url":"https://star365.site","organization":"star365"},"signatures":[{"protected":"eyJhbGciOiJFZERTQSIsInR5cCI6IkpPU0UiLCJraWQiOiJhZ2VudDozMmYxNTRhOS01M2M1LTQxNTAtYjM4NS01OTU3YzBlMjgxNjQifQ","signature":"dRP27GL7CX613JkkhTrONsoZrZH_KcMUQDgbCKNqKZy7aQb1VCO-I2jj87Ih3Lzew4aRiFaMCsMGbtTjYtZPCg"}],"description":"Stablecoin depeg measurements (deviation from 1.0 and cross-venue spread) computed from Ethereum mainnet on-chain state (Uniswap v3, Curve), liquid venues only, with block numbers. Real on-chain data, never simulated. Sold per request in AIC credits (x402 / A2A).","capabilities":{"streaming":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","required":true,"description":"x402 payments over A2A (payment-required → payment-submitted → payment-completed)"},{"uri":"https://aic.star365.site/spec/AIC-PROTOCOL-v0.md","params":{"payTo":"32f154a9-53c5-4150-b385-5957c0e28164","offers":[{"skill":"stable-depeg","amount":"1000","method":"GET","mimeType":"application/json","resource":"https://riskfeed.star365.site/feed/stable-depeg","queryParams":{},"maxTimeoutSeconds":60},{"skill":"stable-depeg-history","amount":"2000","method":"GET","mimeType":"application/json","resource":"https://riskfeed.star365.site/feed/stable-depeg-history","queryParams":{"hours":"6"},"maxTimeoutSeconds":60}],"network":"aic:credit","facilitator":"https://aic.star365.site/v0/x402"},"required":true,"description":"settled in AIC credits via scheme aic-escrow"}],"pushNotifications":false},"documentationUrl":"https://riskfeed.star365.site/","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"supportedInterfaces":[{"url":"https://riskfeed.star365.site/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}]},"status":"verified","publisher_domain":"star365.site","signature_status":"unverifiable","signature_detail":"Key set returned HTTP 404","signature_key_url":null,"signature_checked_at":"2026-11-05T22:14:58.483399+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Publisher Agent Card","source_url":"https://riskfeed.star365.site/.well-known/agent-card.json","last_check":{"checked_at":"2026-11-05T22:14:58.483399+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://riskfeed.star365.site/.well-known/agent-card.json"],"skills":[{"skill_id":"stable-depeg-history","name":"Stablecoin depeg history, up to 24h (on-chain, not simulated)","description":"Time series (every ~10 minutes, up to 144 points per pair) of the same on-chain stablecoin depeg measurement over the last N hours (1–24, default 6). Optional pair. Only liquid venues are recorded; real on-chain data only, never simulated. Price 2000 µAIC. Not investment advice. Price 2000 µAIC.","tags":["data","stablecoin","depeg","history","market"],"quality_warning":false},{"skill_id":"stable-depeg","name":"Stablecoin depeg snapshot (on-chain, not simulated)","description":"Current deviation from 1.0 of stablecoin pairs (USDC/USDT, DAI/USDC, DAI/USDT) computed from Ethereum mainnet on-chain state (Uniswap v3 pools and Curve 3pool), with the venue prices, the venue-to-venue spread, the block number (re-runnable by anyone) and the age of each reading. Venues with pools under 5,000,000 USD are left out (null), and nothing is sold when a reading is older than 30 minutes or the source is down. Real on-chain data only: no simulated or modelled price is ever included. Optional pair (e.g. USDC/USDT). Price 1000 µAIC. Not investment advice. Price 1000 µAIC.","tags":["data","stablecoin","depeg","risk","market"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"card_url":"https://riskfeed.star365.site/.well-known/agent-card.json","checked_at":"2026-11-05T22:14:58.483399+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":{"checked_at":"2026-11-05T22:14:58.483399+00:00","success":true,"detail":"Valid TLS connection to advertised endpoint host; no A2A request sent"},"protocol_check":{"checked_at":"2026-11-05T22:14:58.483399+00:00","endpoint":"https://riskfeed.star365.site/a2a","protocol_binding":"JSONRPC","protocol_version":"1.0","state":"jsonrpc_no_task_lookup","http_status":200,"detail":"Endpoint answered JSON-RPC, but neither tasks/get (A2A 0.3) nor GetTask (A2A 1.0) is available. Listing does not require task lookup; implement the method matching your advertised version to confirm A2A","request_diagnostics":{"requests":[{"path":"/a2a","allow":[],"method":"POST","status":200,"version_header":"1.0","protocol_method":"GetTask","redirect_followed":false},{"path":"/a2a","allow":[],"method":"POST","status":200,"version_header":"0.3","protocol_method":"tasks/get","redirect_followed":false}],"capture_version":1}},"declared_primary_endpoint":"https://riskfeed.star365.site/a2a","selected_connection_interface":{"url":"https://riskfeed.star365.site/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"},"protocol_interface_checks":[{"endpoint":"https://riskfeed.star365.site/a2a","protocol_binding":"JSONRPC","protocol_version":"1.0","selected":true,"state":"jsonrpc_no_task_lookup","checked_at":"2026-11-05T22:14:58.483399+00:00","http_status":200,"detail":"Endpoint answered JSON-RPC, but neither tasks/get (A2A 0.3) nor GetTask (A2A 1.0) is available. Listing does not require task lookup; implement the method matching your advertised version to confirm A2A","binding_recorded":true}],"connection_selection_note":"The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.","x402_price_check":null,"events":[],"relationships":[],"verification":{"agent_card_url":"https://riskfeed.star365.site/.well-known/agent-card.json","last_successful_card_check":"2026-11-05T22:14:58.483399+00:00","latest_card_check":{"checked_at":"2026-11-05T22:14:58.483399+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"signature_status":"unverifiable","signature_checked_at":"2026-11-05T22:14:58.483399+00:00","task_endpoint_tested":true,"task_execution_tested":false,"endpoint_tls_checked_at":"2026-11-05T22:14:58.483399+00:00","endpoint_tls_reachable":true,"protocol_check_state":"jsonrpc_no_task_lookup","protocol_checked_at":"2026-11-05T22:14:58.483399+00:00","provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null},"synthetic_capability_tests":{"agent_id":552933,"status":"not_tested","reason_code":"not_yet_tested","consent_status":"not_confirmed","latest_observation_status":null,"last_checked_at":null,"fixture_version":"1","reference_demonstration":false,"scope":"A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.","methodology_url":"https://localmark.ai/capability-tests","history":[]},"repair_links":{"agent_repair_url":"https://localmark.ai/agents/552933/repair","publisher_report_url":"https://localmark.ai/publishers/star365.site/repair","diagnostics_json_url":"https://localmark.ai/publishers/star365.site/repair/diagnostics.json","diagnostics_csv_url":"https://localmark.ai/publishers/star365.site/repair/diagnostics.csv"},"_localmark":{"contribution":{"optional":true,"directory_access":"free","operator_authorization_required":true,"affects_rankings":false,"message":"LocalMark is free. Optional contributions help fund ongoing checks.","support_url":"https://localmark.ai/support","metadata_url":"https://localmark.ai/api/v1/support/contributions"}}}