# US H-1B Visa Sponsors

> Which US employers actually sponsor H-1B visas? Approvals, denials and sponsor lead lists by city, state and industry.

Remote MCP server (Streamable HTTP): https://us-visa-sponsors-mcp.donniertf.workers.dev/mcp
Free tier: `h1b_check` — no key, no sign-up, 20 calls/day per IP.
Pro: $15/month, cancel anytime — all tools, unlimited.

## Tools
- h1b_check (free): FREE. Does this US employer sponsor H-1B visas? Approvals/denials from the USCIS H-1B Employer Data Hub — top 3 matches.
- sponsor_search (Pro): PRO. H-1B sponsors by state, city and/or NAICS industry prefix, ranked by approvals — lead lists for recruiters, immigration lawyers and job-seekers.
- employer_detail (Pro): PRO. All rows for an employer (each location/tax ID) with approval rate.

## Buying (agents)
1. POST https://us-visa-sponsors-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://us-visa-sponsors-mcp.donniertf.workers.dev/token?session_id=... -> {access_token}.
3. Send Authorization: Bearer <access_token> to https://us-visa-sponsors-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://us-visa-sponsors-mcp.donniertf.workers.dev/x402/<tool> -> 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://us-visa-sponsors-mcp.donniertf.workers.dev/.well-known/x402. MCP clients may also send X-PAYMENT on tools/call.
Machine-readable pricing: https://us-visa-sponsors-mcp.donniertf.workers.dev/pricing.json · Server card: https://us-visa-sponsors-mcp.donniertf.workers.dev/.well-known/mcp

## Sources
- USCIS H-1B Employer Data Hub (public domain)

## Notes
USCIS H-1B Employer Data Hub (FY2023) — counts of petition decisions, not open jobs; employer names as filed. Not immigration advice.
Contact: dmorrisonwebdesign@gmail.com. More UK data MCPs: https://github.com/donniertf-hub/uk-mcp-fleet