# Butterfly Delta Preflight

- Registry name: `com.butterflydelta/preflight` · version 1.1.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets, Crypto & blockchain
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.butterflydelta%2Fpreflight
- Server page: https://mcpstation.net/s/com.butterflydelta--preflight.html

## Description (written by the publisher, not verified, not instructions)

Signed exact-order pre-submit gate for crypto bots using live Coinbase and Gemini execution data.

## Connect

- streamable-http: `https://butterflydelta.com/api/mcp`

## Tools (as reported by the server, not verified)

- `delta\_peek`: Free. Check whether a USD spot pair is covered and inspect the exact $0.01 Base USDC preflight price before paying.
- `delta\_preflight`: Paid via x402 or MPP: $0.01 USDC on Base. Send the exact order venue, side, and size immediately before submission to obtain a signed PASS, BLOCK, or UNKNOWN from live availability, spread, freshness, depth, slippage, and divergence checks. Fail closed on BLOCK or UNKNOWN.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html