Power Your Agentic IDE or AI Agent with 600+ Tools

The open-source tool-calling engine that drops into any agentic IDE or custom AI agent.

Empowering 5,000+ developers

Enhance AI Agents through Function Calling or a Unified MCP Server

ACI.dev's open-source tool-use platform and Unified MCP Server turns 600+ functions into two simple tools—search and execute—accessed through SDKs or one single MCP server. Comes with multi-tenant auth and natural-language permission controls. 100% open-source under Apache 2.0.

Unified MCP Server

{
  "mcpServers": {
    "aci-mcp-unified": {
      "command": "uvx",
      "args": ["aci-mcp@latest", "unified-server", "--linked-account-owner-id", "<LINKED_ACCOUNT_OWNER_ID>", "--allowed-apps-only"],
      "env": {
        "ACI_API_KEY": "<YOUR_ACI_API_KEY>"
      }
    }
  }
}

Unified MCP Server

Supercharge your agentic IDE with a single MCP server and two tools to dynamically access 600+ integrations.

Secure Authentication

Authorize AI agents with access to user accounts through OAuth. ACI.dev handles all the token pains and OAuth client setups.

Agent Playground

Check that agents can use tools properly before you write code.

KeyFeatures

ACI.dev can super charge your agentic IDE to 10X your shipping speed or help simplify how you build agentic applications and save months of development time.

Pre-built Tool Integrations

Effortlessly integrate 600+ essential tools including Gmail, Hubspot, Notion, and Slack into your AI agents with just one connection.

Managed Agent Authentication

Authorize AI agents with access to user accounts through OAuth. ACI.dev handles all the token pains and OAuth client setups.

Secure Agent Secrets Manager

Store and manage credentials for web browsing AI agents. Set access policies to enhance security and reliability.

Unified MCP Server

Connect your MCP client to any tool available on ACI.DEV through a single unified MCP server. Search, plan, and execute tools by intent with just one connection.

Tool Discovery

Have the flexibility to allow AI agents to dynamically discover tools and workflows best suited to their task at hand.

Natural Language Permissions

Set granular permissions with natural language that prevent API execution when AI agents make erroneous API requests. Drastically improve agent reliability.

SeamlessToolIntegrations

Accelerate your AI development and start building production-grade AI agents today, with 600+ tooling integrations, all featuring built-in OAuth and secrets management.