Composio vs Sendmux

SpecialistLeading unified LLM model gateway, but strictly handles model inference rather than third-party SaaS tool integrations and authentication.

Collaborative inbox and email management for teams

Free / Open-sourceExceptional open-source gateway for LLM provider routing, but lacks Composio's extensive library of SaaS tool integrations and auth.

Free / Open-sourceOpen-source MCP gateway and pay-per-call catalog, but offers less extensive managed authentication workflows than Composio.

Email an AI assistant and let it run your schedules, inbox and CRM

SpecialistRobust TypeScript framework for agent workflows and tools, but requires writing custom integration code instead of pre-built connectors.

The universal context engine connecting agents to data, tools, and models

Managed auth and 10,000+ tools for the agents you're building

Fast Apply and agent-tuned inference for coding agents

AI gateway, observability and guardrails for production LLM apps

SpecialistFlexible Python agent framework with built-in tools, but less focused on acting as a standalone universal integration middleware.

One API key for 70+ AI models, 1,000+ data APIs and web tools