# Provenance stamped 2026-10-07 (roadmap#943): written by an API Evangelist sweep (undated — the file carries no date and git cannot supply one), not # harvested from the provider. `method: generated` so the economics campaign may replace it with a # dated, verbatim transcription; every figure below is unverified until it does. method: generated rateLimits: - name: Minute Limit description: Per-minute request cap enforced across all API endpoints. Exceeding this limit returns a "minute_limit_exceeded" error response. Specific per-plan values are not publicly disclosed by Airlabs. period: minute scope: account errorCode: minute_limit_exceeded notes: Contact Airlabs support for exact per-minute thresholds per plan. - name: Hour Limit description: Per-hour request cap enforced across all API endpoints. Exceeding this limit returns an "hour_limit_exceeded" error response. Specific per-plan values are not publicly disclosed by Airlabs. period: hour scope: account errorCode: hour_limit_exceeded notes: Contact Airlabs support for exact per-hour thresholds per plan. - name: Monthly Query Limit description: Monthly total query allowance tied to the subscription plan. Exceeding the monthly cap returns a "month_limit_exceeded" error response. period: monthly scope: account errorCode: month_limit_exceeded tiers: - plan: Free limit: null notes: Undisclosed; intended for evaluation only. - plan: Starter limit: 10000 notes: $19/month; resets each billing cycle. - plan: Growth limit: 100000 notes: $99/month; resets each billing cycle. - plan: Scale limit: 1000000 notes: $499/month; resets each billing cycle. - name: Results Per Request Limit description: Maximum number of records returned per API call on database endpoints such as airports, airlines, routes, fleets, and schedules. scope: request tiers: - plan: Free limit: 50 notes: All database endpoints cap results at 50 per request. - plan: Starter limit: 500 notes: All database endpoints cap results at 500 per request. - plan: Growth limit: 500 notes: All database endpoints cap results at 500 per request. - plan: Scale limit: 500 notes: All database endpoints cap results at 500 per request. authentication: - type: API Key description: Pass the api_key parameter in the query string of every request. parameterName: api_key location: query example: https://airlabs.co/api/v9/flights?api_key=YOUR_API_KEY - type: Temporary Signature description: Server-side computed signature for enhanced security. Format is api_id:timestamp:md5(timestamp:api_key). Valid for 3 minutes from generation. location: query notes: Recommended for production environments to avoid exposing the raw API key.