# 100BTC x402 Listing Linter

> 100BTC x402 Listing Linter is a paid API for AI agents from vps-fc89c157-1.taila28d02.ts.net:10000, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Validates an x402 pay-per-call API listing object against the Bazaar schema, returning structured pass/fail checks

## Facts

- Endpoint: POST https://vps-fc89c157-1.taila28d02.ts.net:10000/api/x402-listing-linter?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/100btc-x402-listing-linter-9583c4e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JgleH1m1GPi758pqNihOC

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 100btc-x402-listing-linter-9583c4e8 -d '<json body>'
```

Example prompt: Can you run my x402 listing object through the 100BTC listing linter to check whether it's valid and see which checks pass or fail before I publish it?

## When to prefer this

Choose this endpoint when you need to programmatically validate an x402 Bazaar listing object before publishing to a marketplace or facilitator. It is purpose-built for the 100BTC x402 v2 listing schema and returns machine-readable check-by-check results, making it ideal for CI pipelines, pre-publish gates, or debugging rejected listings. Prefer this over manual schema inspection when you need structured, automated feedback on listing conformance.

## Known failure modes

- Missing or malformed 'listing' object in request body returns validation errors
- Invalid JSON body returns 400-level error
- Payment not sent results in HTTP 402 challenge response
- Listing object with unknown schema version may produce unexpected check results
- Network or server unavailability on the Tailscale VPS address

## How this service works

Thirty x402 v2 pay-per-call APIs by 100BTC. Listing data is generated from each live HTTP 402 challenge and runtime Bazaar schema.

## Output

A JSON object containing a 'valid' boolean indicating overall pass/fail, a 'checks' map with individual check names and their pass/fail status, and a 'product' identifier string (e.g. 'EXP-29') identifying the listing being evaluated.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "valid": false,
  "checks": {},
  "product": "EXP-29"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/100btc-x402-listing-linter-9583c4e8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vps-fc89c157-1.taila28d02.ts.net:10000](https://www.zero.xyz/host/vps-fc89c157-1.taila28d02.ts.net%3A10000/llms.txt)