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Eventfrog
api.eventfrog.net/mcp/v1
Not ready
Protocol
MCP negotiation succeeds (v1/v2)
Failed to connect: Could not connect via streamable HTTP: Server returned 403: Version negotiation failed: the server denied access (HTTP 403)
Overview
- Author
- Eventfrog AG
- Verification
- community
- Auth
- None — public endpoint
- Categories
- media-entertainmentcommerce-shoppingcommunication
- Works with
- claudeclaude-apiclaude-codeclaude-desktop
- Docs
- Documentation
get_eventlist_rubricssearch_eventsRelated MCP servers
FAQ
Eventfrog install, tools, readiness, and alternatives.
How do I add Eventfrog to Claude, ChatGPT, or Cursor?
Add Eventfrog to Claude, ChatGPT, or Cursor by connecting its remote MCP URL in each client's MCP settings. In Claude, add a custom connector. In ChatGPT, add an MCP app. In Cursor, add an MCP server under Settings. The MCP URL is https://api.eventfrog.net/mcp/v1.
Is Eventfrog MCP ready for ChatGPT and Claude?
As of September 15, 2026, Eventfrog scores 0/100 on Manufact's MCP publishing checklist. The scan does not yet meet ChatGPT publishing checks and does not yet meet Claude publishing checks.
What tools does the Eventfrog MCP server provide?
Eventfrog provides these MCP tools: get_event, list_rubrics, and search_events.
What are the best alternatives to Eventfrog?
As of September 16, 2026, alternatives to Eventfrog in media-entertainment on the Manufact MCP catalog include Credits.fm, EbooksDepository, FlagStat, Keyword Tool: Free SEO Keyword Research, and Newsflash.
Does Eventfrog MCP require authentication?
Eventfrog does not require authentication. It is a public MCP endpoint you can connect without logging in.
Why is Eventfrog failing MCP readiness checks?
Eventfrog scored 0/100 on the latest Manufact MCP publishing checklist, below the 70-point ready band. The top failing check is MCP negotiation succeeds (v1/v2). Failed to connect: Could not connect via streamable HTTP: Server returned 403: Version negotiation failed: the server denied access (HTTP 403) Paste the MCP URL into the Manufact MCP catalog to rerun the scan.
Who develops Eventfrog?
Eventfrog is developed by Eventfrog AG. It is listed as community on the Claude connector directory.
Not your MCP?
Scan any public or OAuth MCP URL against ChatGPT and Claude publishing checks. No account required.