ember MCP server
io.github.shapeandshare/ember·v0.16.0Calibrated advice for coding agents: typed questions in, probabilities out. Apple Silicon.
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0 stars1.1k downloads/wk
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If you have run it, two minutes of your experience saves the next person an afternoon.
ember tools
No tool declarations could be read from the package source. They show once the server is installed.
How ember compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 77/100
- higher than 50% of 48,255 servers
- Downloads a week
- 1,063
- more than 95% of 12,191 servers with a package
Release history: 3 versions in the registry since 2026-10-12, latest 2026-10-14, typically one every 1 day.
Install ember in Claude Code, Cursor or VS Code
claude mcp add ember -- uvx ember-advise
What the publisher says
From the ember repository's README, as published. We do not edit it. Read it on GitHub
<!-- mcp-name: io.github.shapeandshare/ember -->
A gut feeling for coding agents. AI coding assistants like Claude Code, Codex, opencode, and Kilo Code constantly have to decide: start now or ask a question first? Is this test failure real? Is this change safe to push? ember is a small add-on that gives them a quick second opinion at those moments, as a number ("93% likely this needs review"), so they stop interrupting you needlessly and stop making risky changes without asking. You don't call it yourself; your assistant does. It's free and open source, and you choose where the model runs: on your Apple Silicon Mac (32 GB of memory or more, a one-time ~18 GB download), on a server you host, or on one your team already runs. ember advises; the agent decides.
Under the hood, ember runs Cloudflare's Clef-Flash decision model, from its public Hugging Face repo, and exposes it as one MCP tool, advise, that returns a calibrated probability for every option.
Website: shapeandshare.github.io/ember
Ways to run ember
All three are supported equally; ember init asks which one you want.
Nothing is ever sent to a server you didn't configure. Without a terminal to ask (a script, CI), ember init sets up local inference; --local or --server-url answer the question up front.
How it works
A decision model is not a chat model: it takes a state plus a schema of typed questions and returns one probability per option, with no text generation. So ember plugs into agents as a tool, while their reasoning stays on their normal LLM:
agent sessions.
- The model server (ember/serving/server.py) loads the model once and stays warm across
server on the first tool call, so the MCP handshake stays instant.
- The MCP server (ember/mcp/mcp_server.py) never loads the model; it starts the model
Names
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
ember: common questions
- Is ember MCP server safe?
- Mostly: it is graded B (77/100). Read the ember safety report
- How do I install ember?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does ember need an API key?
- Yes. The registry entry asks for
EMBER_AUTH_TOKEN. - Is ember maintained?
- The last commit was 23 days ago (2026-10-12). The latest release is v0.16.0.
- What can I use instead of ember?
- Servers from other publishers that do the same job: Ask Jev MCP server.
- How does ember compare with other MCP servers?
- safety score 77/100 (higher than 50% of 48,255 servers); downloads a week 1,063 (more than 95% of 12,191 servers with a package). Full comparison.
Alternatives to ember
Same job from other publishers: the closest match first, then the best rated.
- Ask JevEvaluate state with typed choice, score, and probability questions.not reviewedEstablishedA
