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Connect Microsoft Copilot Studio to Lawbster

Copilot Studio supports MCP servers as "custom connectors" — and unlike many other clients, Copilot Studio also pulls MCP resources (not just tools), which is particularly valuable for Lawbster (legal://rechtsrahmen, legal://eu_celex_registry, etc.).

Prerequisites

  • Microsoft Copilot Studio with the MCP preview enabled
  • A Lawbster account with OAuth access or an API key
  1. Copilot Studio → Tools → Add a tool → New tool → Model Context Protocol
  2. Server URL: https://lawbster.planitprima.com/mcp
  3. Authentication: OAuth 2.0. The exact endpoints (authorization URL, token URL, scopes) are provided by us — drop a line to support@planitprima.com, and we'll also register your tenant's redirect URI in the same step.
  4. Save & Test → sign in to Lawbster → Allow

Setup path B — API key (server-to-server bots)

  1. Tools → New tool → Model Context Protocol
  2. Server URL: https://lawbster.planitprima.com/mcp
  3. Authentication: Bearer
  4. Token: sk-legal-… (from the Lawbster portal)

Using resources

After creating the connector you can pick which resources the bot has available:

  • legal://rechtsrahmen — domain → relevant laws mapping (e.g. "data protection" → GDPR + BDSG + TTDSG)
  • legal://filter_values — valid filters for legal_search
  • legal://eu_celex_registry — curated CELEX → URI map for EU acts

For dynamic resources (legal://norm/{id}, legal://law/{source}/{abbr}) the bot references them on demand — they count against the per-seat quota like tool calls.

Use cases in Microsoft stacks

Compliance bot in Teams: employees ask the bot about GDPR requirements; the bot calls legal_lookup Art. 6 GDPR and answers with the full text plus reference.

Contract review in Word: an add-in pulls relevant BGB paragraphs for a highlighted clause via Lawbster and annotates inline.

Power Apps for in-house counsel: a low-code app with the Lawbster connector delivers a citable legal database without bespoke development.

Troubleshooting

OAuth flow fails with a redirect error

Your Copilot Studio tenant's redirect URI must be registered as an allowed URI with Lawbster's OAuth provider. Email support@planitprima.com and we'll add it.

Resources don't show up

After connector setup, click Refresh once. If resources still missing, delete and recreate the connector and explicitly tick Include resources.

Next steps: Tool reference · Resources · Compliance