Overview

Flapjack Developer Documentation

Build AI-powered products with Flapjack. Create agents, embed them with the SDK, extend with MCP tools, and manage via the REST API.

Flapjack is a hosted platform for deploying AI agents. You create agents on the dashboard, then embed them in your product using the TypeScript SDK, React hooks, or REST API.

Architecture

Client (SDK/API) → Flapjack API → Tensorlake Runtime → LLM (OpenAI / Anthropic)
                   [control plane]   [execution plane]
                   Next.js + Supabase   Python

Control plane: Agent config, auth, threads, message persistence, MCP management
Execution plane: LLM calls, tool dispatch, memory, RAG, streaming
SDK: @flapjack/sdk — TypeScript client + React hooks

Choose Your Path

Path 1: Flapjack Skill (Fastest — 30 seconds)

Install the Flapjack plugin in Claude Code, Cursor, or any Agent Skills-compatible editor. Your AI assistant gets full SDK knowledge and can scaffold integrations for you.

/plugin add maatskappy/flapjack

→ Quickstart: Skill

📋 Copy as prompt

Install the Flapjack plugin in my editor using /plugin add maatskappy/flapjack, then help me set up a Flapjack-powered chatbot in my project.

Path 2: TypeScript SDK (5 minutes)

Install @flapjack/sdk and stream your first agent response in 10 lines of code.

npm install @flapjack/sdk

→ Quickstart: SDK

Path 3: REST API (Direct)

Call the Flapjack API directly with curl or any HTTP client.

curl -X POST https://api.flapjack.dev/api/threads \
  -H "Authorization: Bearer fj_live_..." \
  -H "Content-Type: application/json" \
  -d '{"agentId": "your-agent-id"}'

→ Quickstart: API

Documentation Sections

Section	What You'll Learn
Getting Started	Install, configure, send your first message
Concepts	Agents, threads, streaming, tools, knowledge, memory, plans, skills, tracing
SDK Reference	FlapjackClient methods, React hooks, patterns
API Reference	REST endpoints, request/response schemas
MCP Guide	Connect external tools via Model Context Protocol
Runners	Headless, schedulable AI pipelines
Guides	Publish agents, connect Postgres, enable web tools, Google Workspace

Key Resources

Resource	URL
Dashboard	flapjack.chat
API Base URL	`https://api.flapjack.dev`
SDK Package	`@flapjack/sdk` on npm
Plugin	`/plugin add maatskappy/flapjack`
GitHub	maatskappy/flapjack
LLM Manifest	llms.txt

Last updated: 2026-05-11