Visual builderTools
Credentials
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Credentials are used to authenticate MCP servers.
The credentials page allows you to add credentials to your MCP servers.
Adding a credential
Make sure your Visual Builder is running (if you haven't set it up yet, see Quick Start). Navigate to the Credentials tab in the left sidebar and click "Create credential".
- Fill in the required credential details:
| Field | Description |
|---|---|
Name | A descriptive name for your credential (e.g., "production-api-key") |
API key | The authentication token or API key for the service |
- Optionally, configure additional settings:
| Field | Description |
|---|---|
Metadata | Additional headers to include with authentication requests (e.g., User-Agent, X-API-Key). Only available for Nango Store. |
Credential store | Where to securely store the credential. Choose from available stores (Nango Store or Keychain Store) |
Link to MCP server | Optionally associate this credential with a specific MCP server that does not have a credential configured |
- Click "Create Credential" to save the credential.
To use the credential in an MCP server, you can reference it when creating or editing the MCP server. See the MCP Servers page for more information.