Anteproof

Calibrated, publicly scored probability forecasts on software projects, packages and companies.

CommunityOnlineAPI key requiredGlobalFreeRead-only

What it can do

  • Search Entities: Find tracked entities (repositories, packages, companies) by name substring.
  • Get Entity: One entity's public record: identity, latest velocity score, 30-day metric history, and every live question about it with its latest forecast.
  • Get Question: One question with every live forecast ever issued for it and its resolution if settled.

What data it sees

Do you need an account

An API key from the service settings is required

Calibrated, publicly scored probability forecasts on software projects, packages and companies. Search entities, read open questions and latest forecasts, pull any question's forecast history, and check the calibration record before trusting a number.

How to connect

How to connect Anteproof to Claude

The server address to paste into Claude settings:

https://anteproof--anteproof.run.tools

  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 Anteproof to ChatGPT

The server address to paste into ChatGPT settings:

https://anteproof--anteproof.run.tools

  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 Anteproof to Cursor

The server address to paste into Cursor settings:

https://anteproof--anteproof.run.tools

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 (5)

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

search_entitiesFind tracked entities (repositories, packages, companies) by name substring.
get_entityOne entity's public record: identity, latest velocity score, 30-day metric history, and every live question about it with its latest forecast.
get_questionOne question with every live forecast ever issued for it and its resolution if settled.
list_forecastsThe public forecast log: newest live forecasts across all entities, with titles.
get_calibrationThe calibration record: launch-gate verdict and Brier skill by question family for the pastcast pool and the live track. horizon: 7, 30, 90, long, or all (default: the gate's horizon).