ablaut

Conjugate verbs in 14 European languages — full paradigms, reverse lookup, and composed tenses.

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What it can do

  • Conjugate: Full conjugation table for a verb in one of 14 European languages, validated against two independent gold lexicons. Input is the infinitive (aufstehen, appeler, vorbi).
  • Find Infinitive: Reverse lookup: given a conjugated form and a language, returns the infinitive(s) whose paradigm contains it, with the slots it occupies (suis matches both être and suivre). Full cove
  • List Languages: The 14 languages ablaut conjugates, with codes and maturity status (beta: 100% agreement against two gold lexicons; wip: known gaps).

What data it sees

Do you need an account

No: the server works without sign-in

Conjugate verbs in 14 European languages — full paradigms, reverse lookup, and composed tenses. Every form is verified against two independent lexicons, never guessed. Bring your own key from ablaut.dev.

How to connect

How to connect ablaut to Claude

The server address to paste into Claude settings:

https://ablaut--romflorentz.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 ablaut to ChatGPT

The server address to paste into ChatGPT settings:

https://ablaut--romflorentz.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 ablaut to Cursor

The server address to paste into Cursor settings:

https://ablaut--romflorentz.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 (3)

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

conjugateFull conjugation table for a verb in one of 14 European languages, validated against two independent gold lexicons. Input is the infinitive (aufstehen, appeler, vorbi).
find_infinitiveReverse lookup: given a conjugated form and a language, returns the infinitive(s) whose paradigm contains it, with the slots it occupies (suis matches both être and suivre). Full coverage for fr/es/de/en; irregular forms in all 14 languages.
list_languagesThe 14 languages ablaut conjugates, with codes and maturity status (beta: 100% agreement against two gold lexicons; wip: known gaps).