Collibra vs Gemini Enterprise

Collibra

Each REST API has an OpenAPI 3.0 definition, the developer portal publishes llms.txt and Markdown pages, and every MCP tool carries read-only and destructive annotations. Access needs a sales contract, since no price, trial or self-serve sign-up is published, and no general API rate limit was found in the reviewed documentation.

Gemini Enterprise

The assistant is callable through a GA v1 method with a 99.5 per cent SLA, OAuth through IAM, a public Discovery document and optional Model Armor screening. Seat prices weren't found on Google's pages, onboarding needs a billing account and a person, and some Gemini agent capabilities announced on 8 October are early access.

Collibra

1. Ask a Collibra administrator to register an OAuth application. Integration applications use client credentials, and MCP clients need a user application with a redirect URI
2. Reuse each access token for its 5 minutes. The token endpoint answers 429 once a client drains its pool of 100 tokens, refilled at 30 a minute
3. Page large reads with cursor= and sortField=ID. Cursor and offset parameters cannot be combined, and Search API limit plus offset cannot exceed 10,000
4. Keep Import API files to 10,000 assets or fewer and run at most 8 imports at once. Retry a job that fails on a concurrency error
5. Expect discover_data_assets and discover_business_glossary to consume Collibra Units and to need the dgc.ai-copilot permission. Use search_asset_keyword for free keyword search

Gemini Enterprise

1. Create a Gemini Enterprise app first. StreamAssist needs its APP_ID, and the caller needs discoveryengine.assistants.assist
2. Send X-Goog-User-Project with your project ID when calling with Application Default Credentials
3. Pass the session name from the final stream message on the next call to keep context. Leaving it empty starts a new session
4. Read connectorAuthErrors in the response. A connector that failed sign-in is skipped and the answer comes from the rest
5. Use the A2A URL returned by Agent Registry verbatim. It takes the project number, not the project ID