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AppSkyline App Rankings MCP server

com.appskyline/appskyline

We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 95 of 100 (grade A), higher than 72.3% of the 33,003 registry servers that responded over HTTPS that day. Ready for ChatGPT, Gemini and MCP Registry. Not ready for Claude.

Measured facts

Score
95A
Sign-in
OAuth
Tools listed
16
Protocol version
2025-11-25
Stores

Store readiness

StoreStatusReason
Claude Connectors Directory Not ready Blocked by Resource metadata "resource" equals the server URL.
ChatGPT app directory Ready No blocking check failed.
Gemini Connected Apps Ready No blocking check failed.
Official MCP Registry Ready No blocking check failed.

MCP Registry ready means a valid public remote for the registry, not that the server is listed in a store.

Fixes

3 checks to fix

  1. Fails

    Resource metadata "resource" equals the server URL

    auth_resource

    Blocks Claude.

    Measured resource https://mcp.appskyline.com is not the server URL https://mcp.appskyline.com/mcp

    Serve metadata whose "resource" is exactly https://mcp.appskyline.com/mcp (Claude requires an exact match, path included), e.g. at /.well-known/oauth-protected-resource/mcp.

  2. Warning

    initialize latency

    latency

    Measured 1645 ms

    Bring initialize under 1.5 s: avoid cold starts and upstream calls in the handshake.

  3. Warning

    JSON-RPC error for unknown method

    jsonrpc_errors

    Measured JSON-RPC error -32001 instead of -32601

    Return JSON-RPC error code -32601 (Method not found) for unknown methods.

24 checks passed

Passed. Served over HTTPS, initialize over Streamable HTTP, Supported protocol version negotiated, JSON or SSE response Content-Type, GET answers SSE or 405, serverInfo name and version, Server instructions, tools capability declared, Sign-in method the store supports (OAuth or none), 401 carries WWW-Authenticate resource_metadata, Protected resource metadata (RFC 9728), Authorization server metadata (RFC 8414 / OIDC), First metadata URL Gemini tries answers 200 with the required fields, issuer equals the authorization_servers entry; token_endpoint_auth_methods_supported (ChatGPT), PKCE S256 advertised, Client registration (DCR or Client ID Metadata Documents), refresh_token grant advertised, tools/list returns tools, inputSchema is an object schema, Tool names are valid and portable, readOnlyHint or destructiveHint on every tool, Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT), Human-readable title on every tool, Tool descriptions.

Run a fresh check

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McpStamp score for AppSkyline App Rankings

Markdown

[![McpStamp score](https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.appskyline.com%2Fmcp)](https://www.mcpstamp.com/r/com-appskyline-appskyline/)

HTML

<a href="https://www.mcpstamp.com/r/com-appskyline-appskyline/"><img src="https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.appskyline.com%2Fmcp" alt="McpStamp score" height="20"></a>
Registry entry

About this server

Track your apps' keyword rankings, reviews and store listings on App Store, Google Play and more.
Registry name
com.appskyline/appskyline
Remote URL
https://mcp.appskyline.com/mcp
Version
0.2.4
Website
www.appskyline.com/developers/?utm_source=official-mcp-registry&utm_medium=mcp_directory&utm_campaign=mcp-registries-2026#claude-mcp
Checked
2 November 2026, engine 1.2.0, no credentials

The description above is the server's own text from the official MCP Registry. If a result looks wrong, run a fresh check and email support@zovo.one with the report link.

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