Captapi

One REST API for structured public data across 32 platforms and 177 endpoints — transcripts, AI summaries, comments, profiles, search, commerce data, ad libraries, analytics helpers, and engagement metrics. Clean JSON, no OAuth, one Bearer key.

Product: captapi.com · API docs: captapi.com/docs · Catalog: captapi.com/apis

What you get

• Stable REST responses (success, data, billing meta) with consistent camelCase JSON
• One Bearer key for YouTube, TikTok, Instagram, Facebook, X, Reddit, and 20+ more sources
• MCP server, CLI, n8n, Make, and an optional Apify Store client (BYO Captapi key — calls this API; it does not scrape)
• Credit-based pricing with a free tier — see Pricing

Repository layout

.
├── backend/       FastAPI API service
├── frontend/      Next.js marketing site + dashboard
├── packages/      MCP, CLI, n8n, Make, SDKs, Apify Store client
├── supabase/      Database migrations
└── playground/    Local API console for development

API (hosted)

Base URL: https://api.captapi.com

curl -H "Authorization: Bearer capt_live_..." \
  "https://api.captapi.com/v1/tiktok/video-details?url=https://www.tiktok.com/@x/video/123"

Requests fetch fresh data by default. Pass cache=true for a free 24h cache hit.

Full endpoint catalog: frontend/lib/api-catalog.ts or https://captapi.com/apis.

Example endpoints

• GET /v1/youtube/transcript?url=...
• GET /v1/tiktok/video-details?url=...
• GET /v1/instagram/channel-details?url=...
• GET /v1/facebook/marketplace-search?q=...&location=...

Account

• GET /v1/account/balance
• GET /v1/account/request-history
• GET /v1/account/daily-usage
• GET /v1/account/most-used-routes

Local development

Prerequisites

• Python 3.12+
• Node.js 20+
• Supabase project
• OpenAI API key (summaries / Whisper fallbacks)
• Paddle sandbox (billing)
• Upstash Redis (cache / rate limits)
• Provider credentials as required by your deployment (see backend/.env.example)

Backend

cd backend
cp .env.example .env   # fill in secrets — never commit .env
pip install uv
uv pip install -e .
uvicorn app.main:app --reload --port 8000

Frontend

cd frontend
cp .env.example .env.local
npm install
npm run dev

Open http://localhost:3000.

Database

npm i -g supabase
supabase login
supabase link --project-ref YOUR_PROJECT_REF
supabase db push

Pricing (summary)

Details: https://captapi.com/pricing

License

MIT