# UK Visa Sponsor Register > Check, search and monitor the Home Office licensed sponsor register — new sponsors, removals and B-rated employers, daily. Remote MCP server (Streamable HTTP): https://uk-sponsor-register-mcp.donniertf.workers.dev/mcp Free tier: `sponsor_check` — no key, no sign-up, 20 calls/day per IP. Pro: £15/month, cancel anytime — all tools, unlimited. ## Tools - sponsor_check (free): 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): 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. - new_and_removed (Pro): PRO. Organisations added to or removed from the sponsor register since the previous daily update (removed = possible revocation/surrender). - b_rated (Pro): PRO. Sponsors currently B-rated (downgraded, on an action plan), optionally by town — compliance risk signal. - register_stats (Pro): PRO. Counts of sponsors by route and by town (top 30). ## Buying (agents) 1. POST https://uk-sponsor-register-mcp.donniertf.workers.dev/checkout -> {checkout_url, session_id}. A human (or a payment-capable agent) completes Stripe Checkout at checkout_url. 2. GET https://uk-sponsor-register-mcp.donniertf.workers.dev/token?session_id=... -> {access_token}. 3. Send Authorization: Bearer to https://uk-sponsor-register-mcp.donniertf.workers.dev/mcp (or pass access_token in tool arguments). ## Pay per call (x402, USDC on Base) No account: POST JSON args to https://uk-sponsor-register-mcp.donniertf.workers.dev/x402/ -> HTTP 402 with payment requirements ($0.05 USDC per call, payTo 0x02226D28e0c85AE4AdDB7fe7043Dd2b1Ff710D41). Retry with an X-PAYMENT header (x402 v1, scheme exact, network base). Manifest: https://uk-sponsor-register-mcp.donniertf.workers.dev/.well-known/x402. MCP clients may also send X-PAYMENT on tools/call. Machine-readable pricing: https://uk-sponsor-register-mcp.donniertf.workers.dev/pricing.json · Server card: https://uk-sponsor-register-mcp.donniertf.workers.dev/.well-known/mcp ## Sources - Home Office Register of Licensed Sponsors: Workers (GOV.UK, updated each working day) — Open Government Licence v3.0 ## Notes Based on the public register published on GOV.UK; a name missing from the register does not prove revocation (it may be a rename or suspension). Not immigration advice. Contact: dmorrisonwebdesign@gmail.com. More UK data MCPs: https://github.com/donniertf-hub/uk-mcp-fleet