Windsock provides aircraft intelligence for general aviation and business aircraft. The REST API offers valuations with confidence bands, FAA registry lookups and fleet search, cost-of-ownership estimates, comparable-aircraft data, airworthiness directives and STCs, avionics references, airport data and weather, market metrics and price-index time series, logbook search, and verified value reports. It also exposes compatible tools through MCP. Authentication uses the X-API-Key header.
Excellent production-readiness signals. 90% of weighted signals verified.
90% of weighted signals verified · unverified: CORS
| Authentication | API_KEY |
|---|---|
| Pricing | FREEMIUM |
| Rate limit | Free tier 1 request/second; paid tiers from $49/month |
| Credit card required | no |
| Commercial use allowed | yes |
| Health status | OPERATIONAL |
|---|---|
| Uptime 24h | 100% |
| Uptime 7d | 100% |
| Uptime 30d | 100% |
| Response time | 334 ms |
| Trust score | 92 (grade A) |
| Evidence confidence | 90% |
| Unverified signals | CORS |
| Last checked | 2026-11-04T19:45:16.794Z |
| Field | Source | Verified at |
|---|---|---|
| pricing | CORE_API_REVIEW | 2026-09-16T00:00:00.000Z |
| authentication | CORE_API_REVIEW | 2026-09-16T00:00:00.000Z |
| documentation | CORE_API_REVIEW | 2026-09-16T00:00:00.000Z |
| cors | not yet verified | not yet verified |
Data updated 2026-11-04T19:45:16.794Z
Freemium · API Key auth
Free · API Key auth
Free · API Key auth
Paid · OAuth auth
Paid · Unknown auth