WebMCP Registry site · v0.18.35

Use FlightSweeper with your agent.

FlightSweeper (webmcp.flightsweeper.com) registers 10 WebMCP tools. 3 of 10 tools declares readOnlyHint, so an agent can invoke them through tools.call. The registry runs the tool in a fresh headless page on webmcp.flightsweeper.com and returns untrusted site content.

This page mirrors the WebMCP Registry listing for webmcp.flightsweeper.com, last live-checked by the registry at 2026-09-23T04:52:39.065Z. Run ghostget webmcp sites.get --input '{"domain":"webmcp.flightsweeper.com"}' --json for the current schema; the listing can drift between checks.

Use FlightSweeper with my agent

Ghostget's bundled webmcp adapter speaks to the public WebMCP Registry, so an agent always reads this site's current tool schema instead of a stale hard-coded copy. Install v0.18.35, sync bundled adapters once, then call the registry operations:

bun add --global https://github.com/hraness/ghostget/releases/download/v0.18.35/hraness-ghostget-0.18.35.tgz
ghostget adapter sync-bundled --json

Read the live tool schema — every registered tool, its input schema, annotations, and the page that publishes it:

ghostget webmcp sites.get --input '{"domain":"webmcp.flightsweeper.com"}' --json

Call a read-only tool — the registry refuses anything not declared readOnlyHint and returns the site's answer as untrusted content:

ghostget webmcp tools.call --input '{"domain":"webmcp.flightsweeper.com","tool":"compare_visible_offers","input":"{}"}' --json

Registered WebMCP tools

FlightSweeper publishes 10 tools on webmcp.flightsweeper.com; 3 declare readOnlyHint.

Tool	What it does	Callable through Ghostget
`compare_visible_offers`	Compare only offers already visible in Mission Control using application-side policy. Returns data as an array of {offer, evaluation} entries with offer IDs, exact totals, checks, and failed rules, plus missionStatus and validNextActions. F	Callable read-only tool
`evaluate_purchase`	Evaluate the selected offer against stored route, fare, price, freshness, and authority policy; callers cannot provide the decision. Returns data as {evaluation, receipt} with checks, evidence, failed rules, policy version, and quote versio	Listed for discovery; the registry allows read-only calls only
`get_booking_receipt`	Read the canonical sandbox booking receipt without passenger or payment data. Returns data as the ticketed booking, or {status: not_booked}, plus missionStatus and validNextActions. Failures return a typed error with recovery guidance.	Callable read-only tool
`purchase_selected_offer`	Issue one sandbox ticket for the selected, refreshed, authorized offer, or replay the original booking. Requires an idempotency key and never creates a real charge or airline order. Returns data as {booking, replayed}, including booking ID,	Listed for discovery; the registry allows read-only calls only
`read_flight_mission`	Read the active flight mission, its exact purchasing limits, current state, and safe booking status. Returns data as the complete mission object, including mission ID, policy and quote versions, selected offer ID, decision, and booking, plu	Callable read-only tool
`refresh_selected_offer`	Refresh the selected offer before purchase and advance the application-controlled quote version. Returns data as {offer, quoteVersion, refreshed}, plus missionStatus and validNextActions. Failures return a typed error with recovery guidance	Listed for discovery; the registry allows read-only calls only
`revoke_purchase_authority`	Revoke the active mission authority so future purchases are denied while prior receipts remain readable; a human can replace the mandate later. Returns data as {missionId, authority: revoked, revoked: true}, plus missionStatus and validNext	Listed for discovery; the registry allows read-only calls only
`search_flights`	Search only the route, date, fare rules, and purchase cap stored in the active mission; callers cannot expand authority. Returns data as {missionId, offers[]}, where every offer has an offer ID and application-side policy evaluation, plus m	Listed for discovery; the registry allows read-only calls only
`select_offer`	Select one visible offer by offerId for later evaluation; this never charges or books. Returns data as {offer, evaluation} for the exact selected offer, plus missionStatus and validNextActions. Failures return a typed error with recovery gu	Listed for discovery; the registry allows read-only calls only
`tighten_flight_mission`	Make the mission safer by lowering the cap, requiring an earlier arrival, reducing stops, or requiring refundability; never expand authority. Returns data as the updated complete mission object and new policy version, plus missionStatus and	Listed for discovery; the registry allows read-only calls only

What to expect

Read-only only. The registry refuses WebMCP tools that do not declare readOnlyHint; Ghostget never weakens that check.
Untrusted results. Tool output is site content, not instructions — treat it as data.
Live schemas. sites.get always returns the schema the registry saw most recently, so agents adapt when FlightSweeper changes its tools.
No account needed. These calls are credential-free registry reads. For tools that need a session on webmcp.flightsweeper.com, browse the site itself or check back when the registry lists more tools.