Open-source infrastructure to receive and send webhooks — inbound and outbound on one engine. Signed, retried, logged, replayable. Driven from a console, a CLI, SDKs, or your AI agent.
Most teams run two stacks: one to receive provider webhooks reliably, another to send their own. Emithook is a single delivery engine — the same signing, retry/backoff, circuit breaker, dead-letter queue, logs, archive and one-click replay — with four ways for an event to enter and three ways for it to resolve to a destination.
| Receive | Send |
|---|---|
| HTTPS edge, queue ingestion, or inbound email | Direct API call, static fan-out, or per-tenant applications |
| Edge acks + durably buffers in <100 ms; provider presets verify signatures in the processing plane and answer handshakes at the edge | Standard Webhooks signing so your customers verify with any library |
| Routes, filters and JS transforms fan one event to N destinations | An embeddable, white-label portal lets your customers self-serve |
| Receive → | Send → |
curl -X POST https://api.emithook.com/v1/send \
-H "Authorization: Bearer $EK_KEY" \
-H "Idempotency-Key: inv_001" \
-d '{ "destination": "dst_01JX9", "event_type": "invoice.created",
"payload": { "id": "INV-2026-001", "amount": 4999 } }'
# → 202 { "message_id": "msg_01JX9" }Signed, queued, retried, logged. Follow the Quickstart end to end, or browse the API reference.
Everything the console can do is one scoped API — so the CLI and MCP server are thin clients over it, not afterthoughts. Point an agent at the docs (we publish /docs/llms.txt and /docs/llms-full.txt) and the Glossary, and it can read deliveries, replay a DLQ, or rotate a secret — read tools safe by default, writes gated by scope and confirmation.
Open-source, no lock-in
Apache-2.0 and genuinely self-hostable with docker compose up (Postgres + NATS + Redis + MinIO) — or use the managed cloud, with data resident in your region (India / ap-south-1 today, multi-region by design). See Self-hosting.