# Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router

> Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router is a paid API for AI agents from token-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

Searches and routes queries across 500+ indexed MCP servers and A2A tools through a single connection with token compression and prompt firewall protection.

## Facts

- Endpoint: POST https://token-intel.agentdiet.dev/v1/mesh/dispatch?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: token-intel.agentdiet.dev
- Website: https://token-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/token-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-c35fbad2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aUmQX5rB8wboGNPa86rwl

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 token-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-c35fbad2 -d '<json body>'
```

Example prompt: Search across all indexed MCP servers and A2A tools to find one that handles context compression — route my query through the safe proxy and return the best matching tool.

## When to prefer this

Choose this endpoint when you need to discover which of 500+ MCP or A2A tools best fits a capability need without maintaining separate connections to each service, especially when token efficiency (85% compression) and prompt safety (Prompt-Guard firewall) are required. Prefer it over direct tool calls when you want centralized routing, safe proxying, or don't know which specific tool handles a given task.

## Known failure modes

- No matching tool found for the given query — returns empty or low-confidence results
- Prompt-Guard firewall blocks malicious or unsafe query content
- Downstream MCP server unavailable — routing fails with connectivity error
- Invalid or missing query field returns 400 validation error
- Payment not completed (HTTP 402) if x402 micropayment not attached
- Idempotency key collision causes duplicate-suppression of otherwise valid retry

## How this service works

Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://token-intel.agentdiet.dev/v1/mesh/dispatch)

## Output

Returns matched tool metadata, routing information, and proxied responses from the best-matching MCP server or A2A agent across the 500+ indexed services, with token-compressed output and prompt-firewall validation applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-intel-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-c35fbad2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from token-intel.agentdiet.dev](https://www.zero.xyz/host/token-intel.agentdiet.dev/llms.txt)