Paste the URL of a remote MCP server. You get a score from 0 to 100, what blocks it in Claude, ChatGPT, Gemini and the MCP Registry, and the fix for each problem.
Check report
Score out of 100, grade A to F
Tools could not be verified without sign-in, so the score is capped at 85.
The badge shows the latest score and links to this report. It updates when the server is checked again.
Markdown
HTML
The full check run and read by hand. Every blocker for Claude, ChatGPT, Gemini and the MCP Registry, with the exact code or config change for each. Report in 3 business days.
$490 fixed, pay now
Buy the auditThe blockers fixed in your code, OAuth added where a store needs it, the listing text written, and the server submitted to Claude, ChatGPT, Gemini and the MCP Registry.
$4,900 fixed, $1,500 deposit
See Store LaunchA McpStamp Check of your server every day, changes when the MCP spec or a store rule changes, and store re-submits. Invoiced monthly.
$490 a month
Ask about careDone by the maintainer of 46 hosted MCP servers, all listed in the MCP Registry. All jobs and prices: Services.
Each check passes (full weight), warns (half) or fails (none). The score is the weighted share over the checks that apply. Grades: A from 90, B from 80, C from 65, D from 50, F below. A store is ready when none of its blocking checks fail and every blocking check could run. If a blocking check could not run (for example, tools are behind sign-in), the store shows Unverified.
HTTPS, initialize over Streamable HTTP, a supported protocol version, the response Content-Type, JSON-RPC errors, GET handling and latency.
When the server asks for sign-in: the 401 challenge, protected resource metadata (RFC 9728), authorization server metadata, PKCE S256, client registration and refresh tokens.
tools/list returns tools with object input schemas, portable names, titles, descriptions and the readOnlyHint, destructiveHint and openWorldHint annotations.
serverInfo name and version, server instructions, and the tools capability in the initialize answer.
Blocked by: no HTTPS or initialize, missing OAuth discovery or PKCE when sign-in is used, tools without object schemas, annotations or titles.
Blocked by the same as Claude, plus tools without an explicit openWorldHint.
Blocked by: no HTTPS or initialize, an unsupported protocol version, missing authorization server metadata or PKCE, tools without object schemas.
Blocked by: no HTTPS, or no answer to initialize at the public URL.
The check connects the way an MCP client does and reads what the server publishes. See how public servers score in the McpStamp Readiness Index.
Analytics cookies
We use Google Analytics to count page views and clicks on buy links. In the EEA, the UK and Switzerland it sets cookies only if you accept. No ads, no sale of data. Privacy Policy