Charter
Open-source Composio alternative for AI agents
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Read the full description
A Python library that turns any API into an agent tool you own. No third-party server, no per-call pricing, no rate limits on top. Your rules decide what the agent sees and sends, and a call that breaks one never reaches the API.
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PH · launched Oct 18, 2026 · 6 upvotes (top 6%)
- Horizontal
- Dev tools
- Developer
- AI-native
- Hobby / open-source project
- Open Source
- Developer Tools
- Artificial Intelligence
- GitHub
Similar launches
See all 439 similar launches →Could you build this?
Yes It is a lightweight Python library that parses OpenAPI/JSON schemas, enforces rule validation filters, and exposes functions as tool definitions to LLM function-calling frameworks.
Competitors
Other products that read as similar to this one : 439 launches clear the similarity bar, closest 8 shown.
Attention rank: #36 of 440 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 352 days after the earliest competitor.
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- Orgo - Computers for Agents · yc · 2026-10-21 · 4 upvotes · similarity 0.42
- TURABON · ph · 2026-09-17 · 1 upvotes · similarity 0.42
- Vocapable · ph · 2026-10-12 · 1 upvotes · similarity 0.42
- Expected Parrot: Simulate your customers with AI agents · yc · 2025-11-04 · 93 upvotes · similarity 0.41