# Essere Voice API

> REST API + signed webhooks + MCP server for Essere AI voice agents:
> calls, transcripts, insights, appointments, contacts, phone numbers,
> usage. Auth: `Authorization: Bearer <vk_... API key>` (dashboard →
> Developers, Pro plan). Base URL: https://voice-public-api.essere.ai/v1

## Docs

- [Quickstart](https://voice-developers.essere.ai/quickstart): First API key to first API call in five minutes.
- [Authentication](https://voice-developers.essere.ai/authentication): API keys, scopes, plans, and rate limits.
- [Errors & Pagination](https://voice-developers.essere.ai/errors-and-pagination): Error envelope, error-code catalog, cursor pagination, idempotency.
- [Webhooks](https://voice-developers.essere.ai/webhooks): Subscribe to events and verify X-Essere-Signature (Python + Node snippets).
- [Zapier](https://voice-developers.essere.ai/zapier): Receive events in Zapier via the generic webhook module.
- [n8n](https://voice-developers.essere.ai/n8n): Receive events and call the API from n8n.
- [MCP Server](https://voice-developers.essere.ai/mcp): Connect an AI assistant to your account over MCP.
- [API Reference](https://voice-developers.essere.ai/reference): browsable reference for every endpoint
- [OpenAPI spec](https://voice-public-api.essere.ai/openapi.json): machine-readable OpenAPI 3.1 document

## Optional

- [llms-full.txt](https://voice-developers.essere.ai/llms-full.txt): all guides + an endpoint index, flattened into one file