Composio

Composio is an AI tool-calling and integration platform from Sampark Inc that connects AI agents to more than 1,500 external tools and services through its MCP Gateway and function-calling infrastructure. It solves the authentication, rate-limiting, and execution-reliability problems agents hit when taking actions in systems like GitHub, Salesforce, Slack, Gmail, Linear, and Notion. Instead of building and maintaining individual integrations, developers get managed, production-grade connections that handle OAuth flows, credential refresh, and error handling automatically. The MCP Gateway gives agents a single standardized endpoint for all tool calls, compatible with Claude, Cursor, OpenAI Codex and other frameworks. Its GitHub repository carries 30.3k stars under an MIT license. Integration coverage spans 1,500-plus toolkits across CRM, project management, communication, and developer tooling, with managed OAuth, credential refresh, rate-limit handling and a sandboxed workbench. Connected accounts are unlimited and free on every tier. Pricing is in USD across three tiers. Hobby is free and hard-capped at 100,000 tool calls and 50,000 trigger events a month with three team members and no credit card required. Pro is 29 dollars a month, adds unlimited team members and spend controls, and includes 29 dollars of monthly usage credit that resets each month and does not roll over. Enterprise is quoted and adds committed volume, annual invoicing, SSO and SCIM, customer-managed keys and a dedicated SLA. Past the included amounts, Pro bills 0.0003 dollars per tool call and 0.003 dollars per trigger event. What the 29 dollar tier does not include is the compliance and governance set, which is priced per call on top of the base rate. A HIPAA Business Associate Agreement is an add-on at 0.0003 dollars per tool call, zero data retention is 0.0001 dollars per tool call plus 0.0005 dollars per trigger event, and IP allowlisting is 0.0001 dollars per tool call. All three are included on Enterprise and unavailable on Hobby. Connecting through a Composio-managed OAuth application rather than your own reduces the free allowance to 20,000 tool calls a month and adds 0.0002 dollars per tool call. Composio is best for AI engineering teams that are comfortable working through an SDK, a CLI or an MCP endpoint and want managed tool execution rather than a workflow product. Teams that want to build automations visually without writing code should consider Zapier or Make.com. Teams that need to run the automation on their own infrastructure should consider n8n. Teams whose targets are web interfaces with no API should consider Browser Use, which drives the browser directly where Composio calls APIs. Teams whose agents need paid third-party data such as SEO, enrichment and social endpoints, billed per call without a subscription to each provider, should consider treg.to. Current state Q3 2026: the tier ladder is Hobby, Pro and Enterprise, replacing the earlier call-bucket plans. SOC 2 Type II and ISO 27001:2022 are both published as independently audited and certified. The trust centre records that customer data and toolkit requests and responses are not used to train Composio models.