head to head · open source
effect vs future-agi
effect has 17,476 GitHub stars, 895 forks, 253 open issues and last shipped yesterday. future-agi has 2,245 stars, 707 forks, 889 open issues and last shipped yesterday. effect leads on adoption by 678% (17,476 vs 2,245 stars). effect is written in TypeScript under MIT; future-agi is written in Python under Apache-2.0. effect has attracted 5% as many forks as stars, future-agi 31%. effect was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| effect | future-agi | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 2.2K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 895 | ⑂ 707 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick effect if
- You weight community size — 17K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick future-agi if
- You want the future-agi feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and future-agi fits your workflow better
About effect
Effect Effect is a library for building robust, maintainable, type safe, and production grade applications in TypeScript. It helps you handle the hard problems at scale: typed errors, dependency injection, structured concurrency, scheduling, tracing, and unified schema validation. Effect V4 is currently a release candidate. The main branch contains v4 development. Install V4 RC Requirements TypeScript 5.9 or newer. TypeScript 7 is recommended for the best performance and compatibility with Effect's TypeScript tooling. Node.js 18 or newer is the general minimum for running Effect on Node.js. Some integration…
read the full effect overview →
About future-agi
⚠️ Nightly release for early testing. Expect rough edges. Stable version coming out soon — please open an issue if you hit anything. AI Agents hallucinate. Fix it faster. The open source platform for shipping self improving AI agents. Evaluations, tracing, simulations, guardrails, gateway, optimization. Everything runs on one platform and one feedback loop, from first prototype to live deployment. Try Cloud (Free) · Self Host · Docs · Blog · Discord · Discussions Why Future AGI? Most AI agents fail in production, and teams end up stitching together evals, observability, and guardrails that never close the loop…
read the full future-agi overview →
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Frequently asked questions
Is effect or future-agi more popular?
effect has 17,476 GitHub stars and future-agi has 2,245. effect has the larger community by that measure.
Are effect and future-agi free?
Both are open source. effect is licensed under MIT and future-agi under Apache-2.0. Neither carries a licence fee.
What is the difference between effect and future-agi?
effect is written in TypeScript and future-agi in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, effect or future-agi?
Choose effect if you want the larger community (17,476 stars) or its MIT licence terms. Choose future-agi if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.