# ScriptMasterLabs ACP x402 — TLS Certificate Lookup

> ScriptMasterLabs ACP x402 — TLS Certificate Lookup is a paid API for AI agents from acp-x402-scriptmasterlabs.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Returns TLS certificate information for a given domain or connection, paid per-call via USDC on Base using the x402 protocol.

## Facts

- Endpoint: GET https://acp-x402-scriptmasterlabs.onrender.com/x402/tls-cert?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-acp-x402-tls-certificate-lookup-098e4991
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J9dCkvcZCMXm8I75SOhNd

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 scriptmasterlabs-acp-x402-tls-certificate-lookup-098e4991
```

Example prompt: Can you pull the TLS certificate info for example.com using the ScriptMasterLabs x402 cert API — I want to see the issuer, expiry date, and whether it's currently valid?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call TLS certificate lookup without subscribing to a full certificate monitoring platform, especially within x402-enabled agent workflows that already use USDC micropayments on Base. It is particularly suited for one-off compliance checks, security audits of third-party domains, or agent-driven certificate monitoring where cost per call is preferred over a monthly subscription.

## Known failure modes

- Invalid or unreachable host returns empty or error response
- Payment not settled in USDC on Base results in 402 payment required error
- Malformed properties parameter may return empty example object
- Rate limiting or server unavailability on the Render-hosted service
- Domain with no TLS certificate returns null or error data

## How this service works

Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).

## Output

Returns TLS certificate metadata for the queried host, potentially including the issuer, subject, validity period (not-before and not-after dates), certificate fingerprint, chain details, and current validity status. The response schema is minimal and the exact fields returned depend on the service implementation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-acp-x402-tls-certificate-lookup-098e4991/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from acp-x402-scriptmasterlabs.onrender.com](https://www.zero.xyz/host/acp-x402-scriptmasterlabs.onrender.com/llms.txt)