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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 workflows.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single meta-router connection
Price / call$0.01
Success—
StatusUnknown
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://workflows.agentdiet.dev/v1/broker/execute)
Output
Returns a compressed, Prompt-Guard-filtered list of matching MCP servers or A2A tools from an index of 500+, including tool metadata, routing suggestions, and endpoint validation results. Responses use up to 85% token compression to minimize context overhead.
Example use cases
Finding a GitHub security audit tool
“Search the MCP broker for any tools that can do GitHub security auditing or repository scanning — I need to plug one into my agent pipeline.”
Discovering context compression servers
“Can you query the A2A and MCP tool index for 'context compression' — I want to find servers that reduce token usage before I route my agent swarm through them?”
Validating a specific endpoint URL
“Check the MCP broker index for this endpoint URL — I want to verify it's listed, safe-proxied, and compliant before my agent starts calling it.”
Technical details
Endpoint
GEThttps://workflows.agentdiet.dev/v1/broker/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, rather than hardcoding tool connections. Especially useful in swarm orchestration scenarios where the agent must find, validate, and proxy-route to a new capability at runtime. The 85% token compression and built-in Prompt-Guard firewall make it preferable over raw tool registries when token budget and safety are concerns.
Side effects
- Missing or empty 'query' parameter returns a validation error
- Query matches no indexed tools, returning an empty result set
- Endpoint URL submitted for verification is not indexed or unreachable
- Rate limiting or payment failure (HTTP 402) if x402 microtransaction is not completed
- Network timeout reaching the broker at agentdiet.dev
- Firewall (Prompt-Guard) blocks a query flagged as potentially adversarial
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify |
Output
Schema · Response
{
"type": "object"
}Reviews
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Zero review prompt (fires after every successful call)
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