REST for shops, MCP for AI agents. The premium tool is ad_affected_roster.
GET https://faa-ad-roster.dropwatchhq.com/v1/ads?term=Piper # free: recent ADs GET https://faa-ad-roster.dropwatchhq.com/v1/parse?doc=2022-08852 # free: parsed applicability spec GET https://faa-ad-roster.dropwatchhq.com/v1/roster?doc=2022-08852 # roster (free preview / paid full) GET https://faa-ad-roster.dropwatchhq.com/v1/roster.csv?doc=2022-08852&key=YOUR_KEY # CSV export (paid)
Add ?key=far_… or header x-api-key for full results. Anon callers get a banded preview + an x402 challenge.
POST https://faa-ad-roster.dropwatchhq.com/mcp {"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"ad_affected_roster","arguments":{"doc":"2022-08852"}}}
Free preview returns counts + sample tails + the x402 descriptor. Pay (USDC on Base, keyless) and retry with X-PAYMENT for the full banded roster. Discovery: /.well-known/x402 · /llms.txt.
FAA AD Roster · Real FAA data (Federal Register Part-39 + AircraftInquiry registry). Sales-intelligence only, not an airworthiness determination — confirm per tail with an A&P/IA. · x402 · llms.txt