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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 2026-10-23).
Sends a message to a specific thread on the the402.ai platform using a thread ID
Price / call$0.001
Success—
StatusDown
How this service works
Send thread message (free with API key)
Output
A confirmation that the message was successfully posted to the specified thread, potentially including the message ID or updated thread state.
Example use cases
Example prompt
“Send a message to thread ID thread_8a312604bafb4876 on the402.ai saying 'Please provide the status update for project Alpha.'”
Technical details
Endpoint
POSThttps://api.the402.ai/v1/threads/thread_8a312604bafb4876/messages?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically send a message to a specific existing thread on the the402.ai platform, especially in agentic workflows where threads are used to coordinate tasks or conversations. Best suited when you already have a thread ID and want to append a message to it at low cost ($0.001 USDC).
Side effects
- Invalid or missing thread ID returns an error
- Unauthorized access if API key is invalid or missing
- Thread does not exist or has been deleted
- Payment failure if USDC balance is insufficient for the $0.001 per call fee
- Malformed request body missing the required 'id' field
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| idrequired | string |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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