Data API docs · H-1B sponsorship
H-1B sponsorship profile from certified LCA wage filings
GET https://usefootnote.com/api/data/v1/h1b/employer
200: { data, meta }. Free tier: sponsors yes/no + certified filing volume. Pro/enterprise: fiscal-year trend, wage-level mix, filing entities, and — where the sample clears the quality bar — role-level pay bands. Errors: 400 bad params · 401 missing/invalid key · 403 key suspended · 429 burst or daily cap (retry-after header) · 5xx typed { error: { code, message } }.
Tier
Every tier. Free keys see the free window; Developer, Data Pro and Enterprise widen it — the exact figures below.
| Tier | Calls | Burst | WARN window |
|---|---|---|---|
| Free | 50/day | 10/min | 30 days |
| Developer | 1,000/day | 30/min | 12 months |
| Data Pro | 10,000/day | 120/min | 24 months |
| Enterprise | 100,000/day | 600/min | full archive |
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| name | string | yes | Company name, min 3 chars. Normalized prefix match on certified LCA filings — under-matches rather than misattributes. |
Example
curl -s "https://usefootnote.com/api/data/v1/h1b/employer?name=Acme%20Corp" \ -H "Authorization: Bearer fn_live_YOUR_KEY"
200 — Sponsorship profile. Wage figures are BASE-SALARY attestations — floors, not total comp. Every response is { data, meta }; rate-limit headers (x-ratelimit-limit, x-ratelimit-remaining) ride on every call.
Clients
npx footnote-data wraps this endpoint at the prompt (see the package README); the remote MCP server at https://usefootnote.com/api/mcp exposes it as a tool for agents. Licensing: CC BY 4.0 for display with attribution; commercial use on Data Pro and above.
Also in H-1B sponsorship
Need more depth than the free window? Developer is $29/mo, Data Pro $79/mo or $790/yr — plans on /data. Get a free key from your account.