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the402.ai Thread Message Sender
x402
the402.ai Thread Message Sender is a paid API for AI agents from api.the402.ai, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Sends a message to a specific thread on the402.ai platform via the x402 payment protocol
Price / call$0.001
Success—
StatusDown
How this service works
Send thread message (free with API key)
Output
Returns a confirmation that the message was posted to the specified thread, including the message ID, thread ID, and timestamp of delivery.
Example use cases
Example prompt
“Send a message to my thread on the402 saying 'Please summarize the latest quarterly report' — use thread ID thread_5e9fe506b6c04fe6.”
Technical details
Endpoint
POSThttps://api.the402.ai/v1/threads/thread_5e9fe506b6c04fe6/messagesWhen to prefer
Use this endpoint when you need to post a message to an existing thread on the402.ai platform and have a valid thread ID. It is free with an API key (despite the $0.001 USDC x402 price tag, it is marked free with key), making it suitable for conversational AI workflows, automated messaging pipelines, and agent-to-thread communication on the402 infrastructure.
Side effects
- Invalid or missing API key returns 401 unauthorized
- Thread ID not found or inaccessible returns 404
- Malformed message body returns 400 bad request
- Payment failure via x402 protocol returns 402
- Rate limiting or quota exceeded returns 429
- Network timeout if the platform is under load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| idrequired | string |
Tags
x402
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