Forall
A coding agent from Astrio that helps developers build correct software by generating spec-driven code alongside machine-checkable proofs. Run it as a full CLI or as an MCP verify-only layer inside Cursor, Claude Code, or Codex.
β Pros / Advantages
- β’ Spec-driven code generation with machine-checkable proofs
- β’ Full CLI coding agent β specs, proofs, and workflow in your terminal
- β’ MCP verify-only mode β add hosted verification without leaving Cursor, Claude Code, or Codex
- β’ Supports TypeScript, Java, and Rust (more languages on the way)
- β’ Bring-your-own-model (OpenAI / OpenRouter) or a Forall account API key
β Cons / Limitations
- β’ Young project β only TypeScript, Java, and Rust supported so far
- β’ Proof generation adds workflow overhead versus plain codegen
- β’ Requires a Forall account or model API key to start
π° Pricing Plans
Free (Open Source)
Pricing details are gathered from public sources and are subject to change. Please visit the official website for real-time rates.
Last updated: July 2026 Β· 9bests editorial review
β Who should use Forall
- β’ Spec-driven code generation with machine-checkable proofs
- β’ Full CLI coding agent β specs, proofs, and workflow in your terminal
- β’ MCP verify-only mode β add hosted verification without leaving Cursor, Claude Code, or Codex
- β’ Supports TypeScript, Java, and Rust (more languages on the way)
- β’ Bring-your-own-model (OpenAI / OpenRouter) or a Forall account API key
β οΈ Who should look elsewhere
- β’ Young project β only TypeScript, Java, and Rust supported so far
- β’ Proof generation adds workflow overhead versus plain codegen
- β’ Requires a Forall account or model API key to start
π― Common use cases
Autocompleting and refactoring code
Multi-file AI edits
Debugging and test generation
βοΈ Forall vs Cursor
| Forall | Cursor | |
|---|---|---|
| Rating | 4.3/5 | 4.8/5 |
| Pricing | Free (Open Source) | Free / $20/mo |
| Key strength | Spec-driven code generation with machine-checkable proofs | Best AI code editor |
See the full head-to-head in our Forall vs Cursor comparison.
β Frequently asked questions
Is Forall free?
+
Forall offers a free tier (Free (Open Source)). Paid plans unlock higher limits and advanced features.
What is Forall best for?
+
Forall is best for Spec-driven code generation with machine-checkable proofs and Full CLI coding agent β specs, proofs, and workflow in your terminal. A coding agent from Astrio that helps developers build correct software by generating spec-driven code alongside machine-checkable proofs. Run it as a full CLI or as an MCP verify-only layer inside Cursor, Claude Code, or Codex.
How does Forall compare to Cursor?
+
Forall (4.3/5) and Cursor (4.8/5) serve overlapping needs. Forall stands out for Spec-driven code generation with machine-checkable proofs, while Cursor is stronger at Best AI code editor. Choose based on your priority.
π Top Alternatives to Forall
Related ToolsCursor
AI-first code editor built on VS Code
GitHub Copilot
AI pair programmer by GitHub/OpenAI
Windsurf (Codeium)
Free AI code completion and chat assistant
Replit Agent
AI-powered cloud IDE that builds full apps