Beacon
Developer API

Built for people who read the docs first

Predictable REST, a streaming WebSocket, HMAC-signed webhooks, idempotency keys, and an MCP server so your agents can drive WhatsApp directly. Read the docs, ship in an afternoon.

Capabilities

Inside developer api

REST API

Resource-oriented endpoints, cursor pagination, idempotency keys, and consistent error envelopes.

WebSocket stream

Subscribe to message, status, session, and presence events with automatic reconnect and replay from cursor.

Signed webhooks

HMAC-SHA256 signatures, timestamp tolerance, automatic retries with exponential backoff, and a delivery log.

Testing console

Fire sample payloads at your endpoint, inspect request and response, and replay any historical delivery.

SDKs

Typed clients for TypeScript, Python, and PHP that mirror the REST surface exactly.

MCP server

Expose Beacon as tools to your AI agents - send, search, assign, and query without glue code.

Specifics

What ships with it

No asterisks, no add-on tier. This is the surface as delivered.

  • REST API with cursor pagination and idempotency
  • WebSocket event stream with replay
  • HMAC-SHA256 signed webhooks with retries
  • Interactive API reference and webhook console
  • TypeScript, Python, and PHP SDKs
  • MCP server for agent tooling
  • Scoped API keys and per-key rate limits
  • Sandbox sessions for integration testing

Put developer api to work

Tell us what you're building. We'll show you the platform and talk numbers.

Talk to us