# AgentDiet MCP Gateway Router

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

Routes agent queries across 31,390+ MCP servers, x402 APIs, and A2A agents, returning compressed intelligence results settled in USDC on Base.

## Facts

- Endpoint: GET https://mcp-gateway.agentdiet.dev/v1/mcp-router?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-gateway-router-5d4b5d43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OM97NP0wn55WEpAkR4gc0

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-gateway-router-5d4b5d43
```

Example prompt: Search across all available MCP servers and x402 APIs for a tool that can summarize web pages, and route my GET request with query 'web page summarizer' through the AgentDiet MCP gateway.

## When to prefer this

Choose this endpoint when you need a single unified gateway to discover and invoke capabilities across a large catalog of MCP servers, x402 APIs, and A2A agents without managing individual integrations. It is best suited for agents that need to dynamically route tasks to the most appropriate backend at runtime, especially when USDC micropayment settlement on Base is acceptable. Prefer over direct API calls when the target capability is unknown in advance and discovery is part of the workflow.

## Known failure modes

- Query parameter missing or malformed — returns error status
- Payment not settled or USDC balance insufficient — 402 Payment Required response
- No matching MCP server or API found for the given query — empty data response
- Upstream MCP server or x402 API unavailable — propagated error in data field
- Invalid method enum value (not GET or POST) — schema validation error

## How this service works

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

## Output

Returns a JSON object with a 'data' field containing the routed response, a 'status' field ('ok' on success), and a 'roi_proof' object including a compression_ratio_pct value (e.g. 91.4%) indicating how much the response was compressed relative to raw upstream data.

## 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": {
      "query": {
       "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-gateway-router-5d4b5d43/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-gateway.agentdiet.dev](https://www.zero.xyz/host/mcp-gateway.agentdiet.dev/llms.txt)