# UK Visa Sponsor Register MCP

> Home Office licensed visa sponsors register search and lead lists.

- name: io.github.donniertf-hub/uk-sponsor-register-mcp
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 88/100 flags: duplicate-repo
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.donniertf-hub%2Fuk-sponsor-register-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.donniertf-hub%2Fuk-sponsor-register-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "uk-sponsor-register-mcp": {
      "type": "http",
      "url": "https://uk-sponsor-register-mcp.donniertf.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 60
- liveness: 98
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-94% +updated-9d-ago -duplicate-repo(95 names)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-03-26; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: sponsor_search (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); new_and_removed (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); b_rated (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 370 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 370 tokens to load them all
- tool set hash: c2019b2174ecba8365bfb94a34c1f352
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.donniertf-hub/uk-sponsor-register-mcp.svg)](https://protogrid.dev/servers/io.github.donniertf-hub/uk-sponsor-register-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://uk-sponsor-register-mcp.donniertf.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.9411765)

## Packages

_none_

## Tools (5)

- `b_rated`: PRO. Sponsors currently B-rated (downgraded, on an action plan), optionally by town — compliance risk signal.
- `new_and_removed`: PRO. Organisations added to or removed from the sponsor register since the previous daily update (removed = possible revocation/surrender).
- `register_stats`: PRO. Counts of sponsors by route and by town (top 30).
- `sponsor_check`: FREE. Is this organisation a licensed UK visa sponsor (Skilled Worker etc.)? Returns rating (A/B) and routes from today's Home Office register — top 3 matches.
- `sponsor_search`: PRO. All licensed sponsors in a town/city, optionally filtered by route (e.g. Skilled Worker, Health and Care) — lead lists for recruiters and immigration advisers.