{"uid":"cap_Qlq8M1_8MAAX7B09jqVh3","slug":"assay-agentdiet-dev-agentdiet-assay-a2a-json-rpc-2-0-message-send-fae8fd51","name":"AgentDiet Assay – A2A JSON-RPC 2.0 Message/Send Task Executor","description":"Execute A2A JSON-RPC 2.0 message/send or tasks/send task (Live x402 v2, IETF MPP & MCP endpoint at https://assay.agentdiet.dev)","url":"https://assay.agentdiet.dev/?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["target"],"properties":{"target":{"type":"string","default":"https://agentdiet.dev"}}},"responseSchema":{"type":"object","required":["status","grade","score"],"properties":{"grade":{"type":"string"},"score":{"type":"integer"},"status":{"type":"string"},"target":{"type":"string"},"has_more":{"type":"boolean"},"next_cursor":{"type":"string","nullable":true}}},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.005000","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005000/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005000","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005000","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_i6WxC7vU2p_WWQX7xOKYB","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005000","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":"assay.agentdiet.dev","brandSlug":"assay-agentdiet-dev-mpp","brandBaseUrl":"https://assay.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Sends an A2A JSON-RPC 2.0 message/send or tasks/send request to a target endpoint and returns a graded security and protocol conformance result.","exampleAgentPrompt":"Can you run a live A2A JSON-RPC 2.0 message/send task against https://agentdiet.dev and give me its conformance grade and score?","exampleUseCases":[{"title":"Pre-deployment A2A endpoint validation","prompt":"Before I go live, can you execute a tasks/send call against https://myagent.example.com and tell me the protocol conformance grade and score so I know it's ready?"},{"title":"Third-party agent trust check","prompt":"I'm about to integrate with a partner's agent at https://partner.agentplatform.io — can you send a live A2A JSON-RPC 2.0 message/send task to it and give me its TDQS reputation score and grade?"},{"title":"Continuous CI audit of agent endpoint","prompt":"As part of my pipeline, can you execute a JSON-RPC 2.0 tasks/send against https://staging.mybot.dev and return the status and score so I can fail the build if it doesn't pass?"}],"resultDescription":"Returns a JSON object containing a status string, a letter grade (e.g. A, B, C), an integer conformance score, the target URL that was audited, and optional pagination fields (has_more, next_cursor) for retrieving additional audit records.","failureModes":["Invalid or unreachable target URL returns an error status with a failing grade","Malformed JSON-RPC payload may result in a protocol-level rejection","Target endpoint timeout causes a failed status response","Invalid pagination cursor returns an error or empty result set","Missing required 'target' parameter results in a 422 or 400 validation error"],"whenToPreferThis":"Choose this endpoint when you need to execute a live A2A JSON-RPC 2.0 message/send or tasks/send call against a specific agent endpoint and receive a graded, scored conformance and security report. It is distinct from static audit or manifest-fetching endpoints because it actively sends a task payload and measures the live response for protocol compliance, TDQS reputation, and security posture.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:17.097Z","isFirstParty":false,"canonicalSlug":"assay-agentdiet-dev-agentdiet-assay-a2a-json-rpc-2-0-message-send-fae8fd51"}