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Hypertune MCP by usefulapi MCP Server

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Hypertune MCP by usefulapi is answering right now. Last checked 11 min ago. It exposes 5 tools. Last commit 2 Nov 2026.

Evaluate and inspect your Hypertune feature flags from your AI assistant.

Uptime history 91 days of history · worst day 25%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
156 ms
Response time
average over 24h
1
Stars
last commit 2 Nov 2026

What changed 35

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 1 October 2026. No other catalogue keeps this.

2 Nov a tool changed version
31 Oct a tool changed version4 times that day
30 Oct a tool changed version2 times that day
29 Oct a tool changed version2 times that day
28 Oct a tool changed version2 times that day
27 Oct a tool changed version
25 Oct a tool changed version4 times that day
24 Oct a tool changed version3 times that day
23 Oct a tool changed version
22 Oct a tool changed version
and 25 more, back to 1 October 2026

What the code does

We read the source, 22 h ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Page executes code built at runtime portal/index.html:231 
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Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add hypertune --transport http https://hypertune.usefulapi.io/mcp
Settings → Connectors → Add custom connector, then paste this address
https://hypertune.usefulapi.io/mcp
~/.codex/config.toml
[mcp_servers.hypertune]
url = "https://hypertune.usefulapi.io/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "hypertune": {
      "url": "https://hypertune.usefulapi.io/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "hypertune": {
      "type": "http",
      "url": "https://hypertune.usefulapi.io/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

hypertune
hypertune_evaluate
Evaluate one or more feature flags for a given context and get their resolved values. Builds `query { root(context: <context>) { <selection> } }`. Provide `selection` = the flag fields to read (e.g. `exampleFlag anotherFlag { nestedField }`) and `context` = the evaluation context (environment + user/attributes). Every field must supply all of its arguments (Hypertune reduces the flag logic to a JSON result). Use hypertune_list_flags / hypertune_introspect first if you don't know the flag names.
hypertune_get_logic
Fetch the underlying LOGIC of flags without reducing them — i.e. `query { root { <selection> } }` with no context. Returns the flag's conditional expression / rules rather than a single resolved value, useful for inspecting how a flag is configured. If the schema requires a context arg you can still pass a partial one via `context`.
hypertune_introspect
Run a GraphQL introspection query to discover the project's schema — all types and fields, including the available flags and the shape of the evaluation context. Best-effort: some edge deployments disable introspection, in which case this returns a clear error (use hypertune_query with a known flag name instead).
hypertune_list_flags
List the project's top-level feature flags (the fields of the query root type) with their return types and descriptions, derived from GraphQL introspection. A convenient first call to see what flags exist before evaluating. Requires introspection to be enabled on the edge endpoint.
hypertune_query
Run an arbitrary GraphQL query (and optional variables) against the Hypertune edge endpoint. Power-user escape hatch for full control — each Hypertune project has its own generated schema, so this handles any flag shape, nested selections, inline enum literals, or variables the convenience tools can't express. The query root field is `root(context: ...)`.

Endpoints

URLTransportStateLatencyChecked
https://hypertune.usefulapi.io/mcp streamable-http answering 68 ms 11 min ago

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Hypertune MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Hypertune MCP by usefulapi do?
It exposes 5 tools, read directly from the server on our last check. Among them: hypertune_evaluate, hypertune_get_logic, hypertune_introspect, hypertune_list_flags, hypertune_query. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Hypertune MCP by usefulapi working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 156 ms. The bar chart above shows every period we have measured.
How do I connect Hypertune MCP by usefulapi?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Hypertune MCP by usefulapi need an API key?
No. Hypertune MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Hypertune MCP by usefulapi?
It answers our handshake in 156 ms on average, which is faster than 82% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Hypertune MCP by usefulapi open source?
The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at hypertune.usefulapi.io, which runs on its operator's own terms.