{"uid":"cap__S7hECelhpwvVY6RnUDT4","slug":"api-the402-ai-162dbe6d","name":"the402.ai Thread Message Sender","description":"Send thread message (free with API key)","url":"https://api.the402.ai/v1/threads/thread_a1b84c858a154601/messages","method":"POST","headers":{},"bodySchema":{"type":"object","required":["id"],"properties":{"id":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0oV7999KjaFwCOK-ldWAK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Send a message to a specific thread on the402.ai platform using a thread ID","exampleAgentPrompt":"Send a message to thread ID thread_a1b84c858a154601 on the402.ai saying 'Hello, please process my request for analysis.'","exampleUseCases":null,"resultDescription":"A confirmation that the message was posted to the specified thread, likely including the created message object or message ID and status.","failureModes":["Missing or invalid thread ID returns 400 Bad Request","Thread not found returns 404 Not Found","Missing API key returns 401 Unauthorized","Payment not processed returns 402 Payment Required","Rate limiting may return 429 Too Many Requests"],"whenToPreferThis":"Use this endpoint when you need to post a message to an existing thread on the402.ai platform and have a valid thread ID. Prefer this over creating a new thread when continuing an existing conversation or workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T11:28:04.547Z","isFirstParty":false}