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Untap
io.github.aneduaim/untap-mcp in the official MCP registry.
Endpoint https://untap.money/api/mcp. Source: github.com/aneduaim/untap-mcp.
The registry describes it as: Check UK Delay Repay, UK261 flights and TfL refunds. Save claims and check commutes on request.
We read its 20 tools on 2026-10-27. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
find_money_owed check_train_delay check_flight_compensation check_tfl_journeys get_delay_repay_rules get_claim_instructions scan_for_claims save_claim save_commute list_commutes stop_commute check_commute list_my_claims update_claim_status add_train_journey add_flight add_tfl_journeys add_parking_fine list_savings delete_my_data
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-github-aneduaim-untap-mcp)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.
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