{"uid":"cap_c2SacDexTI3cIqU8K01uL","slug":"api-the402-ai-f037cfe0","name":"the402.ai Thread Message Sender","description":"Send thread message (free with API key)","url":"https://api.the402.ai/v1/threads/thread_0bc7b536cf3843af/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_zoLTlBTz9U02pTFCvhvHI","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":"Posts a new message to a specific thread on the the402.ai platform","exampleAgentPrompt":"Send a message to thread thread_0bc7b536cf3843af on the402 saying 'I'd like to proceed with the sensitivity analysis order — please confirm next steps.'","exampleUseCases":null,"resultDescription":"Returns confirmation that the message was posted to the specified thread, likely including the created message object with its ID, timestamp, and content.","failureModes":["Invalid or missing thread ID returns an error","Unauthorized access if API key is missing or invalid","Thread not found if the thread ID does not exist","Malformed request body causes 400 Bad Request"],"whenToPreferThis":"Use this endpoint when you need to send a message into a specific existing thread on the the402.ai platform, particularly for coordinating work, following up on purchases, or communicating within an ongoing conversation tied to a the402 service job.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T19:27:33.995Z","isFirstParty":false}