Koskamo

Gemmein MCP

The official Gemmein MCP server allows AI agents to build, host, and manage web applications and businesses. It enables developers to create apps with integrated sign-in, data storage, and Stripe payments through natural language instructions, providing a backend-as-a-service solution for coding agents like ChatGPT and Claude.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

Gemmein MCP logo, by Gemmein LimitedNo sign-inEndpoint checked 2026-10-26Operated by Gemmein Limited
MCP endpoint (Streamable HTTP)
https://api.gemmein.com/mcp
Vendor documentation

What you can do with it

  • Build and host web applications via natural language
  • Integrate user sign-in and authentication
  • Process payments using Stripe
  • Manage app data and automations
Tools advertised by the last live check:
  • guide
  • changes
  • reference
  • search_docs
  • explain_rule
  • explain_error
  • validate_collection_name
  • reaffirm_template
  • explain_relay
  • check_integration
  • app_status
  • tools_map
  • pull
  • keys_list
  • waiting_review
  • sync
  • declare_collection
  • put_record
  • update_record
  • dev_delete_record
  • publish_record
  • set_payments
  • put_relay
  • put_ai_tool
  • put_ai_alias
  • put_email_template
  • put_view
  • rename_app
  • test_member_add
  • test_mail
  • prove_app
  • test_run_ai_tool
  • test_pay
  • test_outcome
  • test_member_credits
  • test_member_suspend
  • test_member_unsuspend
  • test_member_cancel_subscription
  • request_go_live
  • request_promote
  • request_rename_app
  • create_app
  • request_add_domain
  • request_delete_domain
  • request_accept_terms
  • request_revoke_server_key
  • request_replace_every_key
  • request_unpublish_site
  • request_delete_collection
  • request_delete_relay
  • request_delete_ai_tool
  • request_grant_credits
  • request_suspend_person
  • request_unsuspend_person
  • request_delete_person
  • request_cancel_subscription
  • request_create_record
  • request_update_record
  • request_delete_record
  • request_publish_record
  • request_app_lives
  • request_email_switches
  • request_email_sender_look
  • refund_steps
  • live_action_status
  • request_server_key
  • dev_logs
  • dev_records
  • dev_people
  • dev_errors
  • dev_view
  • dev_delete_collection
  • dev_delete_relay
  • dev_delete_ai_tool
  • dev_delete_email_template
  • dev_delete_view
  • dev_delete_ai_alias
  • view_add
  • view_edit
  • view_reorder
  • relay_runs
  • replay_relay
  • pause_relay
  • resume_relay
  • sends_read
  • ai_calls_read
  • set_ai_settings
  • set_email_switches
  • set_sender_words
  • set_app_lives
  • alert_preferences
  • set_alert_preferences
  • approvals_list
  • cancel_approval
  • buy_plan
  • connect_payments
  • provider_key
  • put_function
  • dev_functions
  • dev_delete_function
  • function_secret
  • site_draft
  • site_put_file
  • site_publish
  • site_status
  • site_rollback
  • site_promote
  • site_download
  • site_read
  • site_share_link
  • site_history
  • people_graph
  • remove_from_circle
  • close_circle
  • remove_follow
  • site_errors
  • site_unpublish
  • site_revoke_previews
  • site_rebuild
  • site_test
  • site_test_result
  • domain_check
  • domain_connect_link
  • domain_site
  • view_action
  • live_overview
  • live_errors
  • live_usage
  • live_webhooks
  • live_emails
  • live_inbox
  • live_people
  • live_revenue
  • live_subscriptions
  • live_records
  • live_view
  • live_logs
  • inbox_reply

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http gemmein-mcp https://api.gemmein.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add gemmein-mcp --url https://api.gemmein.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable gemmein-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "gemmein-mcp": {
      "url": "https://api.gemmein.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "gemmein-mcp": {
      "type": "streamableHttp",
      "url": "https://api.gemmein.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start gemmein-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "gemmein-mcp": {
      "type": "http",
      "url": "https://api.gemmein.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http gemmein-mcp https://api.gemmein.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "gemmein-mcp": {
      "url": "https://api.gemmein.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "gemmein-mcp": {
      "serverUrl": "https://api.gemmein.com/mcp"
    }
  }
}

Ground your agent in cited data

Gemmein MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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