Best Open Source API Integration Tools using Prettier in 2026

ActivePieces

Automate workflows with no-code integration platform

Stars
21,795
Forks
3,564
Last commit
2 hours ago

Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Automatisch

Open-source integration platform for seamless workflows

Stars
13,781
Forks
1,043
Last commit
2 months ago

Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.

Open Source Alternative to:

n8n

Nango

Build product integrations with 500+ APIs in hours

Stars
7,149
Forks
687
Last commit
9 hours ago

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Rube

ACI.dev

Build reliable AI agents with unified tool integration

Stars
4,753
Forks
455
Last commit
3 months ago

Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Rube

WunderGraph

Unify APIs, databases, and services effortlessly

Stars
1,198
Forks
231
Last commit
2 hours ago

A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

Hook0

Open-source webhooks for seamless integrations

Stars
1,403
Forks
94
Last commit
16 hours ago

Self-hosted webhook solution for effortless event-driven communication between applications, enhancing system interoperability and automation.

Open Source Alternative to:

Zapier

Orbital

Connect APIs, databases, and streams without glue code

Stars
352
Forks
11
Last commit
2 months ago

Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to:

Apollo GraphQL

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

ActivePieces

Automate workflows with no-code integration platform

Stars
21,795
Forks
3,564
Last commit
2 hours ago

Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Automatisch

Open-source integration platform for seamless workflows

Stars
13,781
Forks
1,043
Last commit
2 months ago

Self-hosted automation tool that connects your apps and services, enabling powerful integrations and efficient data flow across your ecosystem.

Open Source Alternative to:

n8n

Nango

Build product integrations with 500+ APIs in hours

Stars
7,149
Forks
687
Last commit
9 hours ago

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Rube

ACI.dev

Build reliable AI agents with unified tool integration

Stars
4,753
Forks
455
Last commit
3 months ago

Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Rube

WunderGraph

Unify APIs, databases, and services effortlessly

Stars
1,198
Forks
231
Last commit
2 hours ago

A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

Hook0

Open-source webhooks for seamless integrations

Stars
1,403
Forks
94
Last commit
16 hours ago

Self-hosted webhook solution for effortless event-driven communication between applications, enhancing system interoperability and automation.

Open Source Alternative to:

Zapier

Orbital

Connect APIs, databases, and streams without glue code

Stars
352
Forks
11
Last commit
2 months ago

Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to:

Apollo GraphQL

Open Source API Integration Tools using Prettier

A curated collection of the best open source tools for simplifying the integration of third-party APIs. using Prettier.