MCP server

PPN Hub — public APIs over MCP Official

com.ppn-hub/ppn-hub

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

Working at last checkVerified publisher: ppn-hub.comAbout 1,111 tokens per request once connected3 tools

https://mcp.ppn-hub.com/mcp

At a glance

Type: MCP server
Publisher: ppn-hub.com (verified by the MCP Registry)
Status: Working at last check
Tools: 3
Token cost: About 1,111 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http ppn-hub https://mcp.ppn-hub.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.ppn-hub]
url = "https://mcp.ppn-hub.com/mcp"

Gemini CLI

{"mcpServers":{"ppn-hub":{"httpUrl":"https://mcp.ppn-hub.com/mcp"}}}

Cursor

{"mcpServers":{"ppn-hub":{"url":"https://mcp.ppn-hub.com/mcp"}}}

VS Code

{"servers":{"ppn-hub":{"type":"http","url":"https://mcp.ppn-hub.com/mcp"}}}

Antigravity

agy mcp add ppn-hub https://mcp.ppn-hub.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"ppn-hub","server_url":"https://mcp.ppn-hub.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"ppn-hub","server_url":"https://mcp.ppn-hub.com/mcp"}

environment_brief ~194 tokens
Environmental brief for one location: fans out to every public geo-aware API (weather, terrain, environment, …) and returns a merged JSON. Partial results come back with an errors[] list. Requires 'Authorization: Bearer ppn_live_*'.
execute_api ~483 tokens
Execute a request against any of the 60 registered APIs. Use search_apis first to find the correct api name and operationId. Requires 'Authorization: Bearer ppn_live_*'.
search_apis ~434 tokens
Search across 519 endpoints in 60 APIs (amenomi, cultural, earth, energy-calc, green-path, harmonias, hydrogen, internal, nanobase, nanosnap, natura, platform, sakurahub, science, sim, space, stocks). Returns matching endpoints with method, path, summary, parameters, and a ready-to-run example. Use

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