Open Source Alternatives to Stacksapi
5 open source API Platform options similar to Stacksapi, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
- HUHumanSignal7Agentic AI
Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.
Open source · Self-hostable
- Bifra6Open Source
Open-source tool that turns websites into typed REST APIs and MCP servers.
Open source
Airbyte70Data IntegrationSan Francisco, United States$181.0MAn open-source data integration platform for ELT, reverse-ETL, and AI agents.
Open source · Self-hostable
Redpanda61Streaming Data PlatformNew York, United States$260.0MA streaming data platform designed for real-time applications and data pipelines.
Open source · Self-hostable
Data Commons AI35Data PlatformMountain View, United States$15.0MGoogle's open-source platform that organizes and makes public data accessible and useful for societal challenges through a unified knowledge graph.
Open source · Self-hostable
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| HUHumanSignalAdala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks. | Agentic AI | Open source · Self-hostable | — | — | 7 | |
| Open Source | Open source | — | — | 6 | ||
| AirbyteAn open-source data integration platform for ELT, reverse-ETL, and AI agents. | Data Integration | Open source · Self-hostable | San Francisco, United States | $181.0M | 70 | |
| RedpandaA streaming data platform designed for real-time applications and data pipelines. | Streaming Data Platform | Open source · Self-hostable | New York, United States | $260.0M | 61 | |
| Data Commons AIGoogle's open-source platform that organizes and makes public data accessible and useful for societal challenges through a unified knowledge graph. | Data Platform | Open source · Self-hostable | Mountain View, United States | $15.0M | 35 |