Open Source APIs & Integration Tools

Alternative toZapier

Self-hosted workflow automation with 400+ node connectors

• 208,117 GitHub stars

Alternative toFirecrawl

Give any AI agent internet access, free and local

• 100,165 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toApify

Turn any website into clean markdown or structured JSON for LLMs

• 193,245 GitHub stars
• AGPL-3.0Licence AGPL-3.0

InCustomer Support

136k+ public TV channels, free M3U playlists and EPG data

• 141,716 GitHub stars
• UnlicenseLicence Unlicense
• #Video

Alternative toSkyvern

Python library giving any LLM full browser control, MIT licensed

• 118,661 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toFirebase

Open source Firebase: Postgres database, auth, and file storage

• 112,232 GitHub stars
• Apache-2.0Licence Apache-2.0
• #BaaS

Alternative toComposio

Open reference servers for connecting AI to external tools and data

• 91,470 GitHub stars
• CustomLicence Apache-2.0 and MIT (dual, transitioning)
• #AI Agents

Alternative toLlamaParse

Document parsing for LLM workflows, OCR, and agent reading.

• 82,142 GitHub stars
• CustomLicence Apache-2.0 with commercial threshold and attribution terms
• #LLM

Alternative toPostman

Open source Postman alternative for REST and GraphQL testing

• 80,662 GitHub stars
• MITLicence MIT

Alternative toOpenRouter

352-provider AI gateway with automatic fallback and token compression

• 78,353 GitHub stars
• MITLicence MIT
• #LLM

Alternative toAmazon ElastiCache for Redis

High-performance open source in-memory data structure store

• 77,034 GitHub stars
• #Database

Alternative toContentful

Headless CMS with auto-generated REST and GraphQL for any content model.

• 73,351 GitHub stars
• MITLicence MIT