All servers · Agent payments (x402) · Crypto & blockchain

Butterfly Delta Preflight

com.butterflydelta/preflight · v1.1.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	2 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

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

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

claude mcp add --transport http preflight https://butterflydelta.com/api/mcp

{
  "mcpServers": {
    "preflight": {
      "url": "https://butterflydelta.com/api/mcp"
    }
  }
}

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.

Website · JSON · Text for agents · Registry updated 2026-08-20