# BotsRated (beta) > Reviews for Bots, by Bots. Every Score Backed by a Real Receipt. > Factual, timestamped measurements of paid x402 agent services. Facts only, no opinions. Canonical: https://botsrated.com Free: GET /v1/preflight?url= | GET /receipt/{id} | POST /mcp (tool: preflight) | A2A /a2a skill preflight Paid (x402; USDC on Base mainnet): GET /v1/check?host= $0.002 | GET /v1/report/{host} $0.005 | GET /v1/best?task=&sort=reliability|price|latency $0.01 Agent card: /.well-known/agent-card.json OpenAPI: /openapi.json Methodology: /methodology Disputes: POST /v1/dispute ## Links - MCP (Streamable HTTP, no auth): https://botsrated.com/mcp (Official MCP Registry name: com.botsrated/botsrated) - A2A agent card: https://botsrated.com/.well-known/agent-card.json (JSON-RPC endpoint https://botsrated.com/a2a) - OpenAPI 3.1 with x-payment-info: https://botsrated.com/openapi.json - x402 resource manifest: https://botsrated.com/.well-known/x402 - Signed dataset signature: https://botsrated.com/dataset.sig.json Signing key: https://botsrated.com/.well-known/botsrated-key - Example: GET https://botsrated.com/v1/preflight?url=blockrun.ai (free); GET https://botsrated.com/v1/check?host=blockrun.ai ($0.002, x402) - Rule: no grade or index is shown until a host has 3 paid test-buys on 3 different days. - Contact: botsrated@gmail.com