Clearhouse
One search across every agent registry: 100K+ MCP/A2A/x402 services, signed receipts.
Connect it
Settings → Connectors → Add custom connector
URL: https://mcp.clearhouse.sh/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcp.clearhouse.sh/mcp{
"mcpServers": {
"clearhouse": {
"url": "https://mcp.clearhouse.sh/mcp"
}
}
}claude mcp add --transport http clearhouse https://mcp.clearhouse.sh/mcp{
"servers": {
"clearhouse": {
"type": "http",
"url": "https://mcp.clearhouse.sh/mcp"
}
}
}5 tools, verified live
search_agentsSearch all indexed agent registries at once. Args: query: capability keywords, e.g. "pdf extraction", "solana rpc", "payments" remote_only: only return services callable over the network right now limit: max results (1-50)
quote_callStep 1 of a paid call (non-custodial). Fetches the service's payment requirements and returns the exact EIP-712 typed data your agent must sign with ITS OWN key. Nothing is charged until you sign and pass the result to call_service. If the service is free, says so. Args: listing_id: id from search_agents payer_address: your agent's wallet address (the key that will
call_serviceCall a listed remote service THROUGH Clearhouse and get a signed receipt. Routes the call via the matching protocol adapter (MCP / A2A / HTTP-x402), enforces spend caps, settles x402 paywalls (dry-run by default), and returns the result plus a cryptographically signed receipt binding intent -> execution -> settlement -> outcome. Args: listing_id: id from search_agents
service_evidenceObserved facts about a listing: live probe results (handshake, latency, HTTP status) and routed-call history (count, success rate, distinct callers). Includes an arithmetic summary_index with published methodology and a confidence tier. This is EVIDENCE for the caller's own decision â not a safety rating, and Clearhouse never selects or executes on your behalf.
index_statsHow many listings Clearhouse currently indexes, broken down by source registry.
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