Onward Flights

flights.onwardPublished by onward.flightsOfficial publisherv1.0.0Updated Oct 25, 2026

Search real flights and buy an onward ticket (proof of onward travel), paid in USDC over MPP

VerifiedStreamable HTTPWeb executableLocation & Lifestyle

Overview

Onward Flights's hosted MCP server (onward.flights), published by onward.flights; no sign-in required; Streamable HTTP; 3 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
onward.flights
Endpoint
onward.flights
Last checked

Installation

In SourceWeft

  1. Open Onward Flights in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/flights.onward%2Fonward-flights/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "onward-flights": {
      "type": "http",
      "url": "https://onward.flights/mcp"
    }
  }
}

Tools

3

find_airports

Find airports

Look up 3 letter IATA airport codes by city, airport or country name.

Parametersqueryrequired

search_flights

Search onward 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.

Parametersdateoriginrequireddestinationrequired

buy_ticket

Buy onward 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 no gas needed. Returns the ticket link and PDF.

Parameterschainemailtx_hashlast_namerequiredticket_idrequiredfirst_namerequired

Version history

1
  1. v1.0.0LatestOct 20, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.