lastseen score

Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev register.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev register.

    How to connect

    How to connect lastseen score to Claude

    The server address to paste into Claude settings:

    https://score.lastseen.dev/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect lastseen score to ChatGPT

    The server address to paste into ChatGPT settings:

    https://score.lastseen.dev/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect lastseen score to Cursor

    The server address to paste into Cursor settings:

    https://score.lastseen.dev/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (3)

    Raw names from tools/list. Only developers need these.

    trust_scoreDerived trust score (0-100) for an MCP server, computed from the lastseen.dev register's dated observations by a published method. The score carries DEPTH (how many of 5 dimensions were computable) BOUND INTO the number as `display`, e.g. '80 · depth 2/5 · provisional' — a depth-2 score answers a narrower question (mortality, not merit). Not a prediction, not advice. Methodology: score.lastseen.dev/methodology.
    schema_historyDated schema/tool-count observations for an MCP server (a series when known): first_seen, last_observed, drift events. Facts from the register, not a score.
    dependency_riskAn MCP server's dependencies and their mortality state (dead/dormant counts) from the register. Facts, not a score.