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Certifier MCP: Connect to ChatGPT & Claude

Connect Certifier to your AI assistant through the MCP (Model Context Protocol), and run all credential actions with simple prompts.

Written by Uliana Kysheniuk

👉 If you want to focus on specific functions, just jump to:

What is Certifier MCP?

MCP (Model Context Protocol) is an open standard that lets AI assistants connect to external tools securely.

Certifier MCP server uses this standard to give your AI assistant direct access to your Certifier workspace. Once connected, your assistant can:

  • search, list, and inspect existing credentials

  • create, issue and send credentials

  • create and manage credential templates (groups)

  • list and inspect available design templates

Connect any MCP-compatible AI assistant to Certifier using this server URL:

https://api.certifier.io/v1/mcp

🔎 For detailed setup instructions for Claude Code, Codex and OpenCode, see the Certifier MCP Developer Docs.

💡 If you're a workspace admin and want to give your whole team access, check the Guide for Organizational Accounts.


Connect Certifier to ChatGPT

Follow these steps to connect Certifier MCP to ChatGPT and start issuing & managing credentials directly from your prompts.

Step 1: Open ChatGPT Settings

  1. In ChatGPT, click your profile icon in the bottom-left corner

  2. Select Settings

Step 2: Go to Apps and enable developer mode

  1. In the Settings menu, open the Apps tab

  2. Click Advanced settings

  3. Find Developer mode

  4. Toggle it ON

⚠️ Important note: If you're using a corporate ChatGPT account, Developer mode may be disabled. Share the Organizational Accounts Guide with your admin so they can enable Certifier MCP for your workspace, then come back to complete your connection.

Step 3: Create a new app

  • Click Create app at the top of the screen (next to the “Back” button)

  • You can also do this by going back one step and clicking Create app from the default Apps settings page

Step 4: Add Certifier MCP

  • Fill in the app details including MCP Server URL:

https://api.certifier.io/v1/mcp
  • Leave authentication as OAuth (default)

  • Check the confirmation box

  • Click Create

Step 5: Authorize access

  1. You’ll be redirected to Certifier

  2. Choose your workspace

  3. Click Approve access

Done!

Certifier MCP is now connected to ChatGPT. You can start using it right away, for example:

  • Issue credentials to your recipients from a prompt

  • Create credential templates for new programs

  • List and inspect available design templates

Connect Certifier to Claude

Follow these steps to connect Certifier MCP to Claude and start issuing & managing credentials directly from your prompts.

Step 1: Open Claude settings

  1. Click your profile icon in the bottom-left corner

  2. Select Settings

Step 2: Add Custom Connector

  1. In the left sidebar, find Connectors

  2. Open the Connectors section

  3. Click Add custom connector

⚠️ Important note: If you're using a corporate Claude account, you may not see the option to add a custom connector. Share the Organizational Accounts Guide with your admin so they can enable Certifier MCP for your organization, then come back to complete your connection.

Step 3: Add Certifier MCP

  • Fill in the app name (Certifier), and add the MCP Server URL:

https://api.certifier.io/v1/mcp
  • Click Add

Step 4: Connect Certifier

  1. Find Certifier (Custom) in your connectors list

  2. Click Connect

Step 5: Authorize access

  1. You’ll be redirected to Certifier

  2. Select your workspace

  3. Click Approve access

Done!

Certifier MCP is now connected to Claude. You can start using it right away, or configure permissions to define when and how Claude can perform different credential actions. To do this:

  1. Find Certifier in the Connectors list

  2. Click Configure

  3. Set permissions for each action — allow automatically, block, or run with approval


Need more help?

If you still have some questions, do not hesitate to contact us via the chat icon or email us directly: [email protected]

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