Create or reuse your Grizzly Bulls account
The same account API key can authenticate aircraft requests. New users are sent directly to the Developer API section after signup.
Create a free account →Aircraft Intelligence API
Query the current FAA releasable aircraft registry, search by aircraft attributes, and inspect retained registration history without operating the FAA bulk-data pipeline yourself.
Every authenticated Grizzly Bulls account can use the free aircraft plan with 1,000 requests per month and 30 requests per minute. Paid self-service aircraft plans are not available yet.
Quickstart
Generate one API key
Open My Account → Developer API and generate a key. The plaintext key is displayed once and stored only as a server-side verifier after that.
Make your first request
Put the key in an environment variable, then run a bounded state search. The response includes aircraft N-numbers you can use for exact lookup or history.
Shell
export GRIZZLY_BULLS_API_KEY="your-key"First request
curl --fail-with-body \
-H "Authorization: Bearer $GRIZZLY_BULLS_API_KEY" \
"https://api.grizzlybulls.com/v1/aircraft?state=CA&limit=3"What you can query
Current registry discovery
Search the current registry with exact manufacturer, model, or registrant-state filters. At least one filter is required, results are bounded, and pagination uses opaque cursors.
curl --fail-with-body \
-H "Authorization: Bearer $GRIZZLY_BULLS_API_KEY" \
"https://api.grizzlybulls.com/v1/aircraft?state=CA&limit=3"Exact N-number lookup
Retrieve the current reviewed registration record, aircraft attributes, currently releasable registrant fields, source snapshot information, and a compact history summary.
curl --fail-with-body \
-H "Authorization: Bearer $GRIZZLY_BULLS_API_KEY" \
"https://api.grizzlybulls.com/v1/aircraft/N_NUMBER"Retained registration history
Retrieve bounded historical versions and PII-free change events observed by Grizzly Bulls. Observation boundaries are not represented as FAA legal effective dates.
curl --fail-with-body \
-H "Authorization: Bearer $GRIZZLY_BULLS_API_KEY" \
"https://api.grizzlybulls.com/v1/aircraft/N_NUMBER/history"API contract
Versioned JSON over HTTPS
The canonical server base is https://api.grizzlybulls.com/v1. Aircraft data routes use Bearer authentication and return bounded error envelopes, rate-limit headers, and monthly quota headers.
FAA source, Grizzly Bulls normalization
The service validates and normalizes the FAA releasable aircraft registry into a provider-independent public contract. Current publication remains governed by the latest releasable source state.
Privacy-aware history
Historical retention is not used to restore owner or address fields that the current public FAA source no longer releases. Owner-name reverse search, bulk owner enumeration, and unfiltered registry walking are not supported.
Start with the free beta
Create one account key, make a state-filtered discovery request, then use a returned N-number for current or historical lookup.