Developer Documentation

Build with FastFollow

Everything you need to integrate FastFollow into your sales stack — REST API reference, integration guides, webhook docs, and authentication flows.

Documentation

Guides and references for every aspect of the FastFollow platform.

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Getting Started

Up and running in under 10 minutes. Connect your CRM, link Google, and approve your first AI-drafted follow-up.

  • Connect HubSpot or Salesforce
  • Authorize Google Calendar and Meet
  • Send your first follow-up
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API Reference

Complete REST API documentation with interactive examples, request/response schemas, and cURL and JavaScript snippets.

  • OpenAPI 3.1 specification
  • All endpoint schemas documented
  • Authentication and rate limiting
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Integrations

Deep-dive guides for every integration FastFollow supports — Salesforce, HubSpot, Google Calendar, and Resend.

  • Salesforce and HubSpot CRM sync
  • Google Calendar and Meet ingestion
  • Resend email delivery
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Webhooks

Receive real-time events when calendar meetings end, emails are delivered, or workflow steps complete.

  • Google Calendar push notifications
  • Resend delivery status webhooks
  • Signature verification
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Authentication

Everything about OAuth 2.0 flows, API token management, session handling, and RBAC permissions.

  • OAuth 2.0 with Google
  • API token generation
  • Role-based access control
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MCP Server

Connect AI agents via Model Context Protocol. 16 tools, 6 resources, 6 prompts for sales workflow automation.

  • 16 MCP tools for pipeline, follow-ups, and rooms
  • 6 resources exposing live sales data
  • 6 prompt templates for common workflows
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Opportunity Rooms

Create and manage AI-powered deal workspaces. Includes deal scoring, mutual action plans, and customer collaboration portals.

  • AI-generated room content from transcripts
  • Deal intelligence scoring and risk flags
  • Mutual action plans with customer tracking
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Coming Soon

SDKs and Tools

Official client libraries and CLI tooling to accelerate integration. Currently in active development.

  • Python SDK
  • Node.js / TypeScript SDK
  • CLI for local development
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Webhooks

FastFollow emits real-time webhook events to your endpoints so your systems stay in sync without polling.

meeting.ended

Fires when a Google Meet session concludes. Triggers transcript processing and follow-up generation.

email.delivered

Resend delivery confirmation. Includes bounce and spam reports.

email.bounced

Fires when a follow-up email bounces. Includes CRM contact ID for hygiene.

followup.generated

Fires when an AI draft is ready for review and approval.

Webhook documentation

OpenAPI 3.1 Specification

The full machine-readable OpenAPI 3.1 specification for all FastFollow endpoints. Import into Postman, Insomnia, or any OpenAPI-compatible tool.

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