{"version":1,"name":"ToolFit by YourAITools","category":"developer-tools","categories":["developer-tools","mcp","agent-infrastructure","security","x402"],"tags":["mcp","agent-tools","schema-validation","tool-poisoning","token-cost"],"iconUrl":"https://youraitools.co/favicon-192.png","resources":["https://api.youraitools.co/toolfit/v1/lite","https://api.youraitools.co/toolfit/v1/full","https://api.youraitools.co/toolfit/v1/diff","https://api.youraitools.co/toolfit/v1/check","https://api.youraitools.co/toolfit/v1/watch","https://api.youraitools.co/toolfit/v1/watch/6h"],"instructions":"ToolFit checks the tool list your agent loads, before it costs you: token cost per tool, which tools models will confuse (with fix hints), schemas that OpenAI, Anthropic, Gemini, Bedrock or MCP reject (with fixed definitions per provider), basic tool-poisoning patterns, and a pin (fingerprint) so a later diff call labels every change as breaking, review, suspicious or additive. Send a tools array (MCP, OpenAI, Anthropic, Gemini or Bedrock form) or a public remote MCP URL. The check tier (MCPCheck) preflights a remote MCP server: handshake, protocol version, sign-in method, x402 terms, latency, tool list and grade. Hosted watch: register a remote MCP server and an https webhook; ToolFit re-audits it every 24 h or 6 h for 30 days and sends an HMAC-SHA256 signed notification when its tools or grade change. Pay per call over x402 or with prepaid credits; free tier on the remote MCP endpoint. Routes: /v1/lite?url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub ($0.003), /v1/full?url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub ($0.01), /v1/diff?pin=ts_0123456789abcdef0123456789abcdef&url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub ($0.002), /v1/check?url=https%3A%2F%2Fapi.youraitools.co%2Fmcp%2Fhub ($0.005), POST /v1/watch {\"url\":\"https://api.youraitools.co/mcp/hub\",\"webhook\":\"https://example.com/hooks/toolfit\"} ($0.25), POST /v1/watch/6h {\"url\":\"https://api.youraitools.co/mcp/hub\",\"webhook\":\"https://example.com/hooks/toolfit\"} ($0.60). Paid in USDC via x402 v2 (PAYMENT-SIGNATURE; Base, Polygon, Arbitrum One) or v1 (X-PAYMENT, Base), or a prepaid credits key (Authorization: Bearer yatc_...). Deterministic checks of tool definitions (no LLM). URL mode lists tools and never calls them. A clean result is not a security guarantee: it cannot see what a server does at run time.","openapi":"https://api.youraitools.co/toolfit/openapi.json","networks":[{"network":"eip155:8453","name":"Base","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","symbol":"USDC","payTo":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F"},{"network":"eip155:137","name":"Polygon","asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","symbol":"USDC","payTo":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F"},{"network":"eip155:42161","name":"Arbitrum One","asset":"0xaf88d065e77c8cC2239327C5EDb3A432268e5831","symbol":"USDC","payTo":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F"}]}