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MCP · immigration database

The immigration law library that your favorite AI can search.

Connect it to Claude, ChatGPT, Gemini, or use it within CaseBlink.

286,110 documents · snapshot 21 Sep 2026

Library

What’s in the database.

Taken from the courts and agencies that publish it. Counts below are a snapshot.

  • Unpublished BIA decisions

    EOIR Public Access Link. Image PDFs; text search is limited until OCR.

    116,165

  • AAO non-precedent decisions

    USCIS. Separate from published I&N Dec. AAO.

    139,528

  • Circuit and Supreme Court opinions

    Immigration cases. Collection still growing.

    15,192

  • Published BIA, AG, and AAO precedent

    EOIR Virtual Law Library.

    4,257

  • INA and 8 U.S.C.

    GovInfo, Title 8.

    6,985

  • 8 C.F.R.

    Current eCFR text.

    119

  • USCIS Policy Manual

    Guidance for USCIS officers.

    457

  • Federal Register

    Immigration-related entries; more pages still to add.

    28

  • OCAHO decisions

    Employer sanctions. Not BIA precedent.

    2,611

  • BALCA decisions

    Labor certification. Public lists only; later years incomplete.

    750

Not in the library yet: immigration-judge decisions; foreign affairs manual; visa bulletin; a full citator; text for scanned unpublished board pdfs.

Ask

What you can ask.

Is this published BIA decision still good law in the Fifth Circuit?

The stored decision, later published Board and Attorney General material in the same citation family, and forum-circuit opinions.

What does INA § 245 say, and what is the U.S.C. cite?

The current statute text, with the dual INA / 8 U.S.C. cite when it is mapped.

How does USCIS treat this form in the Policy Manual?

The relevant Policy Manual chapter, labeled as agency practice, not immigration-judge precedent.

Are there unpublished Board or non-precedent AAO decisions on this issue?

Hits from those collections, marked persuasive only — not as Matter of precedent.

What did the Federal Register change recently?

Stored notices and rules, for currency. The C.F.R. text is still the regulation.

Connect

Add the library.

Anyone can add this library. Copy the address below and paste it into Claude, ChatGPT, Cursor, or any app that supports MCP. No form, no key.

MCP address

https://mcp.research.caseblink.com/mcp

Claude

Easiest. This is the one to try first.

  1. Open Claude on the web (a phone browser is fine).
  2. Go to Customize, then Connectors, then Add custom connector.
  3. Paste the address above. Name it anything, like Immigration library. Click Add.
  4. Start a chat and ask your question. Claude looks it up in the library.

ChatGPT

Web app, paid plan, Developer mode.

  1. Open ChatGPT on the web, not the phone app. You need a paid ChatGPT plan.
  2. Turn on Developer mode (Settings → Apps & connectors, or Connectors).
  3. Add a connector and paste the address above. No key.
  4. In a new chat, turn that connector on, then ask your question.

Gemini

Work Gemini only, not the free website.

  1. The free Gemini website (gemini.google.com) cannot add a custom library yet.
  2. If your firm uses Gemini at work (Gemini Enterprise), an admin adds this same address under connected apps.
  3. Gemini CLI and Google AI Studio can also use this address if you already use those.