Connect MentionFox to a Custom GPT via the OpenAPI actions schema. Once connected, the GPT can call MentionFox tools on your behalf — researching people, scanning for mentions, comparing subjects, and running vetting reports — all from a natural chat interface. Setup takes about five minutes.
After connecting MentionFox to ChatGPT as a Custom GPT, you can ask the GPT to run any of the following actions directly from the chat window:
Credits are consumed from your MentionFox account balance when the GPT calls paid tools. Free-tier tools have no credit cost. See pricing for plan credit grants.
Go to Settings in your MentionFox dashboard, open the MCP and API tab, and copy your API key. If you do not have one, generate a new key from that page.
Log into ChatGPT. Click "Explore GPTs" in the sidebar, then click "Create" in the top right. This opens the GPT editor. Fill in a name and description for your MentionFox GPT — something like "MentionFox Research Assistant."
In the GPT editor, click "Configure," then scroll to "Actions" at the bottom of the panel and click "Create new action." This opens the action schema editor.
In the schema field, import from URL. Use:
This loads the OpenAPI schema that defines all available MentionFox tools with their input parameters and response shapes.
Set the authentication type to "API Key." Set the auth type to "Bearer." Paste your MentionFox API key into the key field. The GPT will include this as a Bearer token in every request it makes to MentionFox.
Click "Save" in the GPT editor. Open a new conversation with your MentionFox GPT and ask it to "find recent mentions of [your brand] on Reddit." If the setup is correct, it will call the scan tool and return results in the chat window.
If you are using a client that supports the Model Context Protocol rather than Custom GPT actions — Claude Desktop, Cursor, or Cline — connect to the MentionFox MCP server directly instead of using the actions schema.
The MCP server URL is:
Add this URL as an MCP server in your client's configuration, with your MentionFox API key as the Bearer token. The tools available via MCP are the same as via the Custom GPT actions schema. See the MCP settings page for connection instructions tailored to each client.
Every tool call made through the Custom GPT or MCP server is authenticated using your API key and charges credits to your MentionFox account balance. Free-tier tools (save to pipeline, get recent research, clarify research intent) do not consume credits. Paid tools consume credits at the same rate as calling them from the dashboard directly.
You can monitor API usage from the MCP settings page in your dashboard. The usage log shows tool names, call counts, and credits consumed over the last 30 days, broken down by tool. This lets you understand whether heavy research via the Custom GPT is drawing down your monthly credit grant faster than expected and whether you need to adjust your plan.
There is no separate API pricing tier. Every MentionFox plan includes API and MCP access. Credit costs per tool are the same regardless of whether you call a tool from the dashboard or from a connected GPT or MCP client.
Get your API key from your settings page, then follow the setup steps above.
Get your API key