MCP TOOL · capability_negotiation_preflight

Capability Negotiation Preflight

Detect capability mismatch before an agent commits time or payment.

0.002 USDC / call

TRANSPORT

POST /mcp

DIRECT ENDPOINT

/v1/paid/trust/capability-negotiation-preflight

PAYMENT

x402 · USDC · Base, Polygon, Arbitrum or Solana

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{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "capability_negotiation_preflight",
    "arguments": {"required":["tasks","tools"],"offered":["tools"]}
  }
}

What the agent receives

Compatible or incompatible decision with exact missing capabilities.

No API key or subscription. The first paid request returns HTTP 402 payment requirements; an x402 client signs and retries automatically.

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