{"name":"Butterfly Delta Preflight","description":"A $0.01 machine-paid exact-order execution-integrity gate for autonomous crypto trading bots. Send venue, side, and size immediately before every USD spot order to receive a signed PASS, BLOCK, or UNKNOWN from live Coinbase and Gemini observations.","url":"https://butterflydelta.com/api/agent/order-preflight","version":"1.1.0","provider":{"organization":"Butterfly Delta","url":"https://butterflydelta.com/"},"capabilities":{"streaming":false,"pushNotifications":false},"authentication":{"schemes":["x402","mpp"]},"skills":[{"id":"delta-preflight","name":"Pre-submit execution integrity","description":"Simulate the intended order against visible venue depth, estimate slippage, check availability, spread, freshness, and cross-venue divergence, and return a five-minute signed execution gate.","inputModes":["application/json"],"outputModes":["application/json"],"examples":["Check a 0.25 BTC Coinbase buy immediately before submitting it","Block when visible depth cannot cover the exact order size","Block when estimated slippage exceeds the bot's threshold","Fail closed if two healthy venues are not observable","Block when venue spread or cross-venue divergence exceeds policy"]}],"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"endpoints":{"freePreview":"https://butterflydelta.com/api/agent/delta-peek","paidPreflight":"https://butterflydelta.com/api/agent/order-preflight","mcp":"https://butterflydelta.com/api/mcp","openapi":"https://butterflydelta.com/openapi.json","agent402":"https://agent402.tools/api/index?seller=butterflydelta.com","payanAgentOffer":"https://payanagent.com/api/v1/offers/kh7bv0550gv36xx95kphjjscn58cvj00","payanAgentBuy":"https://payanagent.com/x402/kh7bv0550gv36xx95kphjjscn58cvj00"},"payment":{"price":"0.01","currency":"USDC","network":"eip155:8453","protocols":["x402","mpp"]}}