Onward Flights
Search real flights and buy an onward ticket (proof of onward travel), paid in USDC over MPP
| Endpoint | https://onward.flights/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.1 |
| Now | 3 tools · grade A (100) · pin ts_c5597cade4605a30f1a3aeedee888f8b · protocol 2025-06-18 |
| First / last listed | 2026-11-14 00:56 UTC / 2026-11-14 00:56 UTC |
| Grade over time | 2026-11-14: A (100), 3 tools |
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Tools: find_airports search_flights buy_ticket
find_airports | Look up 3 letter IATA airport codes by city, airport or country name. params: query* |
search_flights | Find one-way flights to use as an onward ticket. Returns up to 10 flights, each with an id to buy and its price in USD. params: origin*, destination*, date |
buy_ticket | Buy the ticket for a flight from search_flights, paid in USDC. Call it first without payment to get the price, wallet address and MPP challenges. After sending the USDC, call it again with tx_hash and chain (or an MPP credential in _meta "org.paymentauth/credential"). x402 clients can instead sign one of the offers in error.data.x402 and retry with the PaymentPayload in _meta "x402/payment", with params: ticket_id*, first_name*, last_name*, email, tx_hash, chain |
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