# TD Agent Utility · Lock-Release Verification

> TD Agent Utility · Lock-Release Verification is a paid API for AI agents from tdagentutility.co.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-16).

Verifies whether a deployment lock has been released by checking HTTP, DNS, TLS, and Chromium-based evidence for a target site

## Facts

- Endpoint: POST https://tdagentutility.co.uk/v1/lock-release?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/td-agent-utility-lock-release-verification-3971080f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_liZkK_Ou6tCvV7cTJQ7SE

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 td-agent-utility-lock-release-verification-3971080f -d '<json body>'
```

Example prompt: Can you check whether the deployment lock has been released for myapp.example.com — I need a definitive PASS or FAIL result before I trigger the next pipeline stage.

## When to prefer this

Use this endpoint when an AI agent needs deterministic, multi-layered evidence (HTTP, DNS, TLS, and visual Chromium screenshot) that a deployment lock has been released — not just a simple HTTP ping. It is particularly valuable in CI/CD pipelines, automated release gates, or any workflow where a downstream step must not proceed until a deployment is verifiably complete and the site is live.

## Known failure modes

- Target site unreachable — DNS resolution fails, returning warnings with error detail
- TLS certificate invalid or expired — check may return FAIL with TLS warning
- Lock still held — 'released' is false and result_status indicates pending
- Timeout on Chromium screenshot probe — may return partial evidence or warning
- Invalid or malformed target URL — request rejected with error
- Payment validation failure — x402 USDC payment not confirmed, request blocked

## How this service works

Independent website and deployment verification for AI agents: HTTP, DNS, TLS and Chromium screenshot evidence. Three deterministic tools, x402 V2 Base USDC.

## Output

Returns a JSON object with the tool name ('lock_release'), a boolean 'released' field indicating whether the lock has been cleared, a 'result_status' string (e.g. 'PASS'), a list of any 'warnings', and a 'checked_at' ISO 8601 timestamp of when the check was performed.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "lock_release",
  "released": false,
  "warnings": [],
  "checked_at": "2026-10-15T00:00:00Z",
  "result_status": "PASS"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/td-agent-utility-lock-release-verification-3971080f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tdagentutility.co.uk](https://www.zero.xyz/host/tdagentutility.co.uk/llms.txt)