ImmigrationDB

ImmigrationDB MCP

Read-only Model Context Protocol server for ImmigrationDB, a sourced migration reference: 39 countries and 27,000+ cities, visa and residence routes, passport entry answers, cost of living, salaries, crime, air quality and climate. Every value carries its source, observation date and geographic grain. The server reads the same release as the website.

• Live endpoint (Streamable HTTP, no key, no account): https://immigrationdb.com/mcp
• Protocol versions: 2026-07-28, 2025-11-25
• Docs: https://immigrationdb.com/data/mcp/
• Tool catalog with input schemas: https://immigrationdb.com/data/mcp/catalog.json
• Methodology: https://immigrationdb.com/methodology/
• Agent index: https://immigrationdb.com/llms.txt

This repository holds the public contract of the hosted server: client configuration, the tool list with input schemas (tools.json), registry metadata (server.json) and a dependency-free smoke test. The service runs only as the hosted endpoint above; its data release is several gigabytes and is published as files at https://immigrationdb.com/data/mcp/.

Tools

Optional arguments are listed with the required ones; tools.json has the full input schemas. Country arguments are ISO 3166-1 alpha-2 codes (de, lv, us); city arguments are canonical slugs (berlin), not display names. All tools are annotated read-only and idempotent.

Resources

• immigrationdb://country/{cc} — country record and route links
• immigrationdb://city/{country}/{slug} — city facts with source metadata
• immigrationdb://legal/routes/{country}/{route_id} — one visa or residence route
• immigrationdb://legal/entry/{passport}/{destination} — one passport entry answer
• immigrationdb://legal/entry/{passport} — all entry answers for a passport
• immigrationdb://report/{report_id} — report rows, method and sources

Client configuration

Any MCP client that supports Streamable HTTP:

{
  "mcpServers": {
    "immigrationdb": {
      "url": "https://immigrationdb.com/mcp"
    }
  }
}

Claude Code:

claude mcp add --transport http immigrationdb https://immigrationdb.com/mcp

Clients that only speak stdio can go through mcp-remote: npx -y mcp-remote https://immigrationdb.com/mcp.

Example calls

{ "tool": "resolve_city", "arguments": { "query": "Berlin, Germany", "limit": 5 } }
{ "tool": "get_city_fact", "arguments": { "country": "de", "slug": "berlin", "metric_id": "population_total" } }
{ "tool": "compare_cities", "arguments": { "cities": [{ "country": "de", "slug": "berlin" }, { "country": "de", "slug": "munich" }], "metric_ids": ["population_total"] } }
{ "tool": "search_facts", "arguments": { "countries": ["de"], "filters": [{ "metric_id": "population_total", "op": ">", "value": 100000 }], "sort_metric": "population_total", "sort_order": "desc", "limit": 20 } }
{ "tool": "get_entry_rule", "arguments": { "passport": "lv", "destination": "us" } }

Response contract

Every response carries the snapshot ID, its generation date and the canonical origin. Facts keep their value, unit, geographic grain, observation date, verification date, source ID, source URL and grade. Unknown or withheld values are returned as such and never estimated. Errors name the requested identifier and the snapshot ID. Rate limits and response-size caps apply per client.

Smoke test

Node 20 or newer, no install step:

node scripts/smoke.mjs                 # initialize, list tools, run six example calls
node scripts/smoke.mjs --write-tools   # also refresh tools.json from the live server

License

The files in this repository are MIT. The ImmigrationDB data is published under CC BY 4.0: credit ImmigrationDB and link to the page or resource you used. The underlying official sources keep their own terms; each value names its publisher and links to it.

ImmigrationDB is an independent reference. It gives no legal advice and sells no visa or immigration services; check current requirements with the responsible authority before acting.