Solo builder launches webhook layer for AI agents to stop API polling
Majoris_25 · reddit · 2026-07-24
Built a webhook layer for AI agents so they can react to state changes instead of polling APIs. The project, Entrpy, lets agents subscribe to conditions like “notify me if ETH drops below $2,000” and receive a webhook when the condition is met.
- Supports a REST API with curl/API key auth and an experimental MCP server for use inside Claude.
- Current beta covers six crypto pairs: BTC, ETH, SOL, BNB, XRP, and DOGE.
- Webhooks are HMAC-signed, and destinations are checked against localhost/private IPs.
- The creator built it in about two weeks as a solo project and is asking what data sources would make it useful.
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