Composio Review, Pricing & Alternatives (2026)

Composio is an agent integration platform from Sampark Inc., founded in 2023 by Soham Ganatra and Karan Vaidya. In July 2025, the company announced a $25 million Series A led by Lightspeed, bringing reported total funding to $29 million. Lightspeed reported more than 100,000 developers and over 10,000 tools at that time, while the current repository describes more than 1,000 toolkits. The MIT licensed repository contains TypeScript and Python SDKs, provider adapters, a CLI, and documentation. Hosted Composio adds account management, execution, sessions, usage billing, and enterprise controls. Its purpose is to give agents authenticated actions across applications including Gmail, GitHub, Slack, Salesforce, Notion, and Linear. This places it between application APIs and agent frameworks, with identity and execution handled in one service.

A typical integration creates a session for a user, discovers or preloads the required tools, connects an account, and passes the resulting schemas to an agent. Sessions handle tool discovery, authentication, toolkit versioning, and execution context. Each session can expose an MCP endpoint, allowing MCP clients to use connected tools without a provider package. Triggers deliver events from connected applications to a webhook, while the CLI supports searching, linking, executing, and scripting tools. Python and TypeScript SDKs include adapters for OpenAI, Anthropic, Google, LangChain, LlamaIndex, CrewAI, AutoGen, and other frameworks. Developers can add custom tools, external MCP servers, or self managed credentials. They remain responsible for prompts, permissions, argument validation, error handling, and downstream application behavior.

The platform's recent direction centers on sessions, versioned tools, and constrained execution rather than loading a complete catalog into every model context. Tool Router became generally available in December 2025, after MCP and experimental ToolRouter arrived in September. Sessions became first class in June 2026, followed by preloaded tools, direct tool presets, session policies, scoped permissions, credential redaction, file transfer hardening, observability APIs, and multi account aliases. April 2026 introduced API version 3.1 with current toolkit versions by default. October releases added session approvals, Python 3.15 support, free form arguments in AutoGen, Google ADK, and OpenAI Agents, plus SDK and CLI updates. Composio supplies authentication, discovery, and execution, but it is not an underlying language model or complete agent runtime.

Hobby costs $0 per month and includes 100,000 tool calls, 50,000 trigger events, unlimited connected accounts, three team members, custom tools and MCP, and 1 million Sandbox LLM tokens monthly. Hobby pauses at included limits, which avoids unexpected charges but also stops work. Pro costs $29 per month and includes a $29 monthly usage credit, unlimited team members, spend controls, and add ons. Unused credit expires monthly. Pro overages are $0.0003 per tool call, $0.003 per trigger event, and $3.75 per million Sandbox LLM tokens. Composio managed OAuth apps have lower allowances and can charge $0.0005 per tool call after their included share. Premium tools add provider charges plus 5 percent. Enterprise uses custom terms and adds SSO, SCIM, customer managed keys, advanced branding, and dedicated support.

Composio reduces repeated OAuth and tool schema work, but it adds a hosted control plane for credentials, execution, sessions, logs, and billing. ZDR is unavailable on Hobby, paid ZDR costs $0.0001 per tool call plus $0.0005 per trigger event, and coverage excludes triggers, files, Sandbox data, some hosted applications, and third party retention. Payloads may remain in ordinary execution logs for up to one year, while audit logs and telemetry still exist. Compared with Nango, Composio places more emphasis on agent actions, sessions, and tool discovery. Compared with Pipedream, it presents a more explicit toolkit and authentication layer for agents. Compared with Zapier, it exposes lower level SDK, MCP, and execution primitives. Choose Composio when developers need agents to act across many authenticated SaaS systems and can accept managed infrastructure.