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How to connect Ollama to Claude

Connect Claude Web, Desktop and Cowork to Ollama MCP. Run a custom prompt with llama2, get model info for all installed models, and more using natural language, with authentication handled for you.

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Ollama lets you run large language models locally or in the cloud. Enjoy fast, flexible LLM workflows without vendor lock-in.

8 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Ollama account to Claude via Composio Connect, enabling it to run a custom prompt with llama2, get model info for all installed models, generate a text completion using mistral, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Ollama with

Claude CodeCursorChatGPTAntigravityOpenAI Agents SDKClaude Agent SDKGrok BotCodexKimi CodeGrok BuildVS CodeOpenCodeOpenClawHermesAtomic AgentCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Ollama to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Ollama account

Back in Claude, ask it to connect to Ollama or give it any Ollama-related task.

For example, ask Claude to:

  • "Run a custom prompt with llama2"
  • "Get model info for all installed models"
  • "Generate a text completion using mistral"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Ollama account is ready to use.

What is the Ollama Claude Connector, and what's possible with it?

The Ollama MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ollama account. It provides structured and secure access so your agent can perform Ollama operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Ollama?

The connector can show as connected, but Claude must use it in each Ollama conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Ollama again.

2. Why does Claude show an MCP server error before Ollama connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Ollama.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Ollama.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Ollama authorization link not work?

The Composio connector is one server. Your Ollama account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Ollama connection.
  • Composio creates a fresh Ollama authorization link.
  • Open that link in your browser and finish the Ollama sign-in.

4. Why do Ollama actions fail after they worked before?

The Ollama connection can expire or lose permission.

  • Ask Claude to inspect the Ollama connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Ollama account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Ollama.
  • If the action still fails with a permission error, check that the connected account has that permission in Ollama itself.

5. How do I switch to a different Ollama account?

Claude can manage the Ollama connection for you.

  • Ask Claude to disconnect or delete the current Ollama account.
  • Ask Claude to connect Ollama again.
  • Open the new Composio authorization link for Ollama.
  • Sign in with the other Ollama account in the browser.
  • After the account connects, ask Claude to retry the Ollama task.

6. Why is my Ollama connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Ollama connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Ollama tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Ollama.
TOOLS

Supported Tools

Every Ollama action and event your agent gets out of the box.

Chat with Ollama model

Tool to send a chat message with conversation history to Ollama.

Generate Text with Ollama

Tool to generate text responses from Ollama models with optional raw mode.

List Models

Tool to list all available Ollama models and their details.

OpenAI-Compatible Chat Completion

Tool to create OpenAI-compatible chat completions using Ollama models.

OpenAI-Compatible Text Completion

Tool to create OpenAI-compatible text completions using Ollama models.

List Models (OpenAI Compatible)

Tool to list available models using OpenAI-compatible API format.

Show Model Information

Tool to show comprehensive information about an Ollama model.

Get Ollama Version

Tool to get the version of Ollama running locally.

FRAMEWORKS

How to build Ollama MCP Agent with another framework

Claude Code logo

Claude Code

Use Ollama MCP with Claude Code

Cursor logo

Cursor

Use Ollama MCP with Cursor

ChatGPT logo

ChatGPT

Use Ollama MCP with ChatGPT

Antigravity logo

Antigravity

Use Ollama MCP with Antigravity

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Ollama MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Ollama MCP with Claude Agent SDK

Grok Bot logo

Grok Bot

Use Ollama MCP with Grok Bot

Codex logo

Codex

Use Ollama MCP with Codex

Kimi Code logo

Kimi Code

Use Ollama MCP with Kimi Code

Grok Build logo

Grok Build

Use Ollama MCP with Grok Build

VS Code logo

VS Code

Use Ollama MCP with VS Code

OpenCode logo

OpenCode

Use Ollama MCP with OpenCode

OpenClaw logo

OpenClaw

Use Ollama MCP with OpenClaw

Hermes logo

Hermes

Use Ollama MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Ollama MCP with Atomic Agent

CLI logo

CLI

Use Ollama MCP with CLI

Google ADK logo

Google ADK

Use Ollama MCP with Google ADK

LangChain logo

LangChain

Use Ollama MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Ollama MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Ollama MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Ollama MCP with LlamaIndex

CrewAI logo

CrewAI

Use Ollama MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Ollama MCP with Pydantic AI

AutoGen logo

AutoGen

Use Ollama MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Ollama MCP server, the agents and LLMs can only access a fixed set of Ollama tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Ollama and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Ollama tools.

Yes, absolutely. You can configure which Ollama scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Ollama data and credentials are handled as safely as possible.

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