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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).
Posts a new message to an existing conversation thread on the the402 platform
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 delivered to the specified thread, including the new message object with its ID, timestamp, and content as stored on the the402 platform.
Example use cases
Example prompt
“Post a message to my thread on the402 platform (thread ID: thread_70b5802993ec4e0c) saying 'Please review the latest draft and provide feedback by end of day.'”
Technical details
Endpoint
POSThttps://api.the402.ai/v1/threads/thread_70b5802993ec4e0c/messagesWhen to prefer
Use this endpoint when you need to programmatically send a message into an existing thread on the the402 platform. Prefer this over alternatives when your workflow involves the402's thread-based messaging system and you already have a thread ID. This is free with an API key (no per-call payment required for authenticated requests).
Side effects
- Invalid or missing API key returns authentication error
- Thread ID does not exist returns 404 not found
- Malformed message body returns 400 bad request
- Insufficient payment (x402) returns 402 payment required
- Rate limiting may return 429 too many requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| idrequired | string |
Tags
x402
Reviews
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