# Bot Bazaar x402 Bazaar-Lint Checker

> Bot Bazaar x402 Bazaar-Lint Checker is a paid API for AI agents from bot-bazaar.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Probes a given x402 endpoint URL to verify it meets all Coinbase CDP Bazaar discovery requirements without actually paying, checking HTTP 402 responses, USDC payment options, and required schema fields.

## Facts

- Endpoint: GET https://bot-bazaar.fly.dev/v1/x402/bazaar-lint?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bot-bazaar-x402-bazaar-lint-checker-11f522ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5kXW4_qplHcuqFFFGxAFa

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 bot-bazaar-x402-bazaar-lint-checker-11f522ed
```

Example prompt: Can you lint my x402 endpoint at https://myapi.example.com/v1/data to check if it's ready to be listed on Coinbase CDP Bazaar — make sure it has the right HTTP 402 headers, Base USDC option, and extensions.bazaar schema?

## When to prefer this

Use this endpoint when you need to verify that a specific x402 endpoint is fully compliant with Coinbase CDP Bazaar discovery requirements before submitting or after configuration changes. It is the authoritative pre-flight check for Bazaar listings, covering all required x402 v2 fields, Base USDC support, EIP-3009 metadata, and the extensions.bazaar schema in a single call without incurring payment costs.

## Known failure modes

- Target URL is not publicly reachable (timeout or DNS failure)
- Target URL does not return HTTP 402 at all (lint fails hard)
- URL is not HTTPS or uses a non-public host (rejected by schema validation)
- Missing required 'url' query parameter returns 400 Bad Request
- Target endpoint uses an incompatible HTTP method beyond GET/HEAD/DELETE

## How this service works

Lint an x402 endpoint URL for Coinbase CDP Bazaar discovery readiness without paying it: checks HTTP 402, x402 v2 PAYMENT-REQUIRED header, Base USDC option, >=1000 atomic minimum, EIP-3009 extra.name/version, and extensions.bazaar schema.

## Output

Returns a structured lint report indicating pass/fail status for each Bazaar discovery requirement: HTTP 402 response presence, x402 v2 PAYMENT-REQUIRED header, Base USDC payment option, minimum 1000 atomic unit price, EIP-3009 extra.name and version fields, and extensions.bazaar schema validity — all checked without triggering an actual payment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "The x402 endpoint to probe (https, public host)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bot-bazaar-x402-bazaar-lint-checker-11f522ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bot-bazaar.fly.dev](https://www.zero.xyz/host/bot-bazaar.fly.dev/llms.txt)