# AgentDiet MCP Validator

> AgentDiet MCP Validator is a paid API for AI agents from status.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Validates an HTTP endpoint for MCP (Model Context Protocol) compliance and returns a compression ratio proof of how much context can be reduced

## Facts

- Endpoint: GET https://status.agentdiet.dev/v1/mcp-validator?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-mcp-validator-6df82047
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1BoeaD6ZbNCCydM8iuf12

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 agentdiet-mcp-validator-6df82047
```

Example prompt: Can you run the AgentDiet MCP validator on my endpoint at https://myapi.example.com using a GET method and tell me the compression ratio and whether it passes MCP compliance?

## When to prefer this

Choose this endpoint when you need to programmatically verify that an HTTP endpoint is compliant with the Model Context Protocol (MCP) and want a measurable compression ratio proof. It is best suited for agent developers building A2A or B2A pipelines who need to confirm endpoint readiness before deployment or integration. Prefer this over generic HTTP health-check tools when MCP protocol compliance and token compression metrics are the specific concern.

## Known failure modes

- Missing or invalid target URL returns error
- Unsupported HTTP method causes validation failure
- Target endpoint unreachable results in connection error
- Malformed input object missing required type or method fields returns 400-level error
- Target endpoint not MCP-compliant returns failed validation status

## How this service works

Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://status.agentdiet.dev settling in USDC on Base.

## Output

Returns a JSON object with a status field ('ok' on success), a data object containing validation details, and an roi_proof object that includes a compression_ratio_pct showing how much context compression was achieved (e.g. 91.4%).

## 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",
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "target": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "status": "ok",
  "roi_proof": {
   "compression_ratio_pct": 91.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-mcp-validator-6df82047/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from status.agentdiet.dev](https://www.zero.xyz/host/status.agentdiet.dev/llms.txt)