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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ppn-hub": {
      "type": "remote",
      "url": "https://mcp.ppn-hub.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "ppn-hub": {
      "type": "http",
      "url": "https://mcp.ppn-hub.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=ppn-hub&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLnBwbi1odWIuY29tL21jcCJ9"
}

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

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

extensions:
  "ppn-hub":
    enabled: true
    name: "ppn-hub"
    type: streamable_http
    uri: "https://mcp.ppn-hub.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_apis (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); execute_api (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); environment_brief (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 930 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

3 tools, about 930 tokens to load them all · tool set 4f80983a932e · checked 2026-10-20 15:26 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 58 / 100

no-repository

provenance55

liveness28

freshness85

hygiene80

+dns-namespace +website -unreachable(1 failures) ~updated-78d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://mcp.ppn-hub.com/mcp` streamable-http	none	no (1 failures)	94%	670 ms	2025-11-25	2026-10-19

Tools (3)

`environment_brief`	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`	Execute a request against any of the 59 registered APIs. Use search_apis first to find the correct api name and operationId. Requires 'Authorization: Bearer ppn_live_*'.
`search_apis`	Search across 484 endpoints in 59 APIs (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 this to discover available API endpoints before calling execute_api. Results carry a "coverage" field (e.g. ["JP"]) for region-limited APIs; use the "region" filter to narrow.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.ppn-hub/ppn-hub",
  "title": "PPN Hub — public APIs over MCP",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.ppn-hub.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.1",
  "websiteUrl": "https://ppn-hub.com/quickstart",
  "description": "One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier."
}