SIGN UPLOG IN
X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Convex to Claude

Connect Claude Web, Desktop and Cowork to Convex MCP. List records from convex tasks table, run convex query for active users, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Convex logoConvex
Api KeyBearer Token

Convex is a Backend-as-a-Service platform with a real-time database, serverless functions, and built-in authentication. Use it to build reactive apps faster without managing backend infrastructure.

19 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 Convex account to Claude via Composio Connect, enabling it to list records from Convex tasks table, run Convex query for active users, inspect Convex deployment function logs, 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 Convex with

Codex

Connecting Convex 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 Convex account

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

For example, ask Claude to:

  • "List records from Convex tasks table"
  • "Run Convex query for active users"
  • "Inspect Convex deployment function logs"

It will prompt you to authenticate and authorize access.

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

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

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

Troubleshooting

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

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

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

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

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

  • 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 Convex.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Convex authorization link not work?

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

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

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

The Convex connection can expire or lose permission.

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

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

Claude can manage the Convex connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Convex 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 Convex.
TOOLS

Supported Tools

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

Create deploy key

Tool to create a deploy key for use with the Convex CLI.

Create Deployment

Tool to create a new deployment for a Convex project.

Create Project

Tool to create a new project on a Convex team, optionally provisioning a dev or prod deployment.

Delete Custom Domain

Tool to remove a custom domain from a Convex deployment.

Delete Deployment

Tool to delete a Convex deployment.

Delete project

Deletes a Convex project and all its deployments permanently.

Execute Query Batch

Tool to execute multiple Convex query functions in a single batch request.

Get Deployment Details

Tool to retrieve details about a Convex cloud deployment.

Get Project by ID

Tool to retrieve detailed information about a specific Convex project by its ID.

Get Project by Slug

Tool to retrieve a Convex project by its slug within a team.

Get Query Timestamp

Tool to get the latest timestamp for queries from Convex deployment.

Get token details

Tool to retrieve token details for the authenticated token.

List Deploy Keys

Tool to list all deploy keys for a specified Convex deployment.

List deployment classes

Tool to list available deployment classes for a Convex team.

List deployment regions

Tool to list available deployment regions for a Convex team.

List Deployments

Tool to list all deployments for a Convex project.

List Log Streams

Tool to list all existing log stream configurations in a deployment.

List Projects

Tool to list all projects for a specific Convex team.

Update Deployment

Tool to update properties of an existing Convex deployment.

FRAMEWORKS

How to build Convex MCP Agent with another framework

Codex logo

Codex

Use Convex MCP with Codex

FAQ

Frequently asked questions

With a standalone Convex MCP server, the agents and LLMs can only access a fixed set of Convex tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Convex 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 Convex tools.

Yes, absolutely. You can configure which Convex 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 Convex data and credentials are handled as safely as possible.

Start with Convex.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Convex tool your agent needs.Free to start.

Start building