# x402broker MCP Validator & Schema Compiler

> x402broker MCP Validator & Schema Compiler is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.01/call, status unknown (last checked 2026-10-20).

Audits any live MCP server URL or GitHub repo against Glama's 6-dimension TDQS rubric and compiles drop-in MCP 5.0/5.0 schemas, A2A Agent Cards, and x402/MPP configuration files.

## Facts

- Endpoint: GET https://x402broker.com/v1/mcp-validator?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402broker-mcp-validator-schema-compiler-fa6a01d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2uRZ2DiaqH6NTlNTi4jdi

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 x402broker-mcp-validator-schema-compiler-fa6a01d5
```

Example prompt: Can you audit the MCP server at https://myserver.example.com using the Glama TDQS rubric and compile a drop-in A2A Agent Card and x402 config for it?

## When to prefer this

Choose this endpoint when you need to validate an MCP server's protocol compliance against the Glama TDQS standard, generate ready-to-deploy A2A Agent Cards, or compile x402/MPP configurations — especially before integrating a new MCP server or publishing your own. Prefer this over generic API auditing tools when you specifically need MCP/A2A/x402 ecosystem artifacts.

## Known failure modes

- Target URL is unreachable or returns non-200 — audit fails with connectivity error
- GitHub repo is private or not found — returns 404 or access-denied error
- Target is not a valid MCP server — TDQS score returns zero with schema compilation failure
- Invalid or missing 'target' query parameter — returns validation error
- Rate limit or payment failure — returns 402 or 429 response

## How this service works

Audits any live MCP server URL or GitHub repo on Glama's 6-dimension TDQS rubric and compiles drop-in 5.0/5.0 schemas, A2A Agent Cards, and x402/MPP configs. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/mcp-validator)

## Output

Returns a structured compliance report including a Glama TDQS score across 6 dimensions, a compiled drop-in MCP 5.0/5.0 schema, an A2A Agent Card JSON, and an x402/MPP configuration file ready for deployment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "target"
 ],
 "properties": {
  "target": {
   "type": "string",
   "minLength": 1,
   "description": "Target MCP server URL or GitHub repository (owner/repo) to audit and compile to 5.0/5.0 Glama TDQS"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-mcp-validator-schema-compiler-fa6a01d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)