Signed exact-order pre-submit gate for crypto bots using live Coinbase and Gemini execution data.
Connect Remote server
claude mcp add --transport http preflight https://butterflydelta.com/api/mcp
{
"mcpServers": {
"preflight": {
"url": "https://butterflydelta.com/api/mcp"
}
}
}
{
"servers": {
"preflight": {
"type": "http",
"url": "https://butterflydelta.com/api/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://butterflydelta.com/api/mcp
Tools 2 found in our last check
delta_peekFree. Check whether a USD spot pair is covered and inspect the exact $0.01 Base USDC preflight price before paying.
delta_preflightPaid 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.
Details
| Endpoint | https://butterflydelta.com/api/mcp (Streamable HTTP) |
| First published | 20 Aug 2026 |
| Last updated | 20 Aug 2026 |
| Registry name | com.butterflydelta/preflight |
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