
callio
One gateway for every API your agents need
Details
- Categories
- Developer ToolsAPI & IntegrationsAI
- Target Audience
- DevelopersBackend DevelopersIndie Hackers
About callio
Callio is a unified API gateway for AI agents. Instead of managing auth, rate limits, and keys for every API your agent uses, connect them all through one proxy. Works with Claude Code, Cursor, Antigravity, and any MCP-compatible tool. Browse APIs, generate a single Callio key, and start calling β we handle auth injection, usage tracking, and billing. Free tier included. One key, every API, zero config
Product Insights
Callio provides a unified API gateway and proxy for AI agents, centralizing authentication and usage tracking across multiple services through a single access key. It integrates natively with MCP-compatible tools and developer environments like Cursor and Claude Code.
- Unified authentication management through a single Callio access key for multiple external APIs.
- Native support for Model Context Protocol (MCP) and popular developer tools like Cursor and Claude Code.
- Integrated usage tracking and billing management across diverse API providers.
- Web, API, and MCP platform availability with a free tier for initial development.
Ideal for: Developers and indie hackers building AI agents who need to simplify API integration and workflow automation without managing individual provider keys.
Comments (1)
π Callio is the first API marketplace specifically for AI agents. We turn any API into an AI-ready tool in minutes. No more manual schemas or auth overhead. Try our Early Access Beta! π