# the402.ai Thread Delivery Verification & Payment Release

> the402.ai Thread Delivery Verification & Payment Release is a paid API for AI agents from api.the402.ai, paid per call via x402, $0.001/call, status down (last checked 2026-09-16).

Verifies that a service has been delivered on a specific thread and releases the associated payment to the provider

## Facts

- Endpoint: POST https://api.the402.ai/v1/threads/thread_8a312604bafb4876/verify
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-the402-ai-9a00219b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2I0QOG6vMpNZAc_ttl5Kv

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-the402-ai-9a00219b -d '<json body>'
```

Example prompt: The AI service I ordered on the402.ai for thread thread_8a312604bafb4876 looks correct — please verify the delivery and release the payment to the provider.

## When to prefer this

Use this endpoint when an AI agent has received results from a paid service on the402.ai marketplace and needs to formally verify the delivery and unlock/release the escrowed USDC payment to the provider. This is the final step in the the402.ai agentic payment workflow, after job completion.

## Known failure modes

- Thread ID not found or invalid — 404 error
- Payment already released for this thread — duplicate release rejected
- Delivery verification failed — service not confirmed as complete
- Insufficient funds or payment authorization missing
- Thread is in an invalid state for verification (e.g. already cancelled)

## How this service works

Verify service delivery and release payment

## Output

A confirmation that delivery has been verified and the $0.001 USDC payment has been released to the service provider, including transaction status and any receipt details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-the402-ai-9a00219b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.the402.ai](https://www.zero.xyz/host/api.the402.ai/llms.txt)