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MCP server report

MaidCentral MCP by usefulapi MCP server

io.usefulapi/maidcentral

We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 88 of 100 (grade B), higher than 59.9% of the 33,003 registry servers that responded over HTTPS that day. Ready for Gemini and MCP Registry. Not ready for Claude and ChatGPT.

Measured facts

Score
88B
Sign-in
OAuth
Tools listed
20
Protocol version
2025-11-25
Stores

Store readiness

StoreStatusReason
Claude Connectors Directory Not ready Blocked by readOnlyHint or destructiveHint on every tool.
ChatGPT app directory Not ready Blocked by readOnlyHint or destructiveHint on every tool and Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT).
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

4 checks to fix

  1. Fails

    readOnlyHint or destructiveHint on every tool

    tool_annotations

    Blocks Claude and ChatGPT.

    Measured 1/20 tools set neither readOnlyHint nor destructiveHint: maidcentral_add_utm_data

    Set annotations.readOnlyHint: true on read-only tools and destructiveHint: true on tools that modify or delete data (Claude needs one of them on every tool; ChatGPT needs all three hints, see tool_open_world).

  2. Fails

    Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT)

    tool_open_world

    Blocks ChatGPT.

    Measured 20/20 tools miss an explicit hint: maidcentral_list_scope_groups, maidcentral_list_scopes, maidcentral_list_scope_frequencies, maidcentral_list_questions, maidc

    Set readOnlyHint, destructiveHint and openWorldHint to explicit true/false on every tool (OpenAI app review requires all three).

  3. Warning

    initialize latency

    latency

    Measured 2343 ms

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

  4. Warning

    JSON-RPC error for unknown method

    jsonrpc_errors

    Measured HTTP 401 instead of a JSON-RPC error

    Route the method first and answer unknown methods with JSON-RPC error -32601 before the auth check, or return a JSON-RPC error body with the 401.

23 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), Resource metadata "resource" equals the server URL, 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, Human-readable title on every tool, Tool descriptions.

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McpStamp score for MaidCentral MCP by usefulapi

Markdown

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

HTML

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

About this server

Read services, prices and open dates; create leads, quotes, bookings and notes in MaidCentral.
Registry name
io.usefulapi/maidcentral
Remote URL
https://maidcentral.usefulapi.io/mcp
Version
1.0.0
Source
github.com/m190/usefulapi-mcp
Website
usefulapi.io/maidcentral/
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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