Etwas Anders MCP server

• Registry nametaxi.ried/bookingverified in the MCP registry

The registry name sits under ried.taxi. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools7
• Server calls itselfried-taxi
• Server version2.0.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 194 ms.

• Its tools do Book a fixed-price airport transfer to Munich airport, but not Pay by card and receive a digital invoice after the ride.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• What an agent can do with it1 of 2 use cases
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer580 ms
• Space in an agent's context≈ 2,550 tokensthe definitions of all its tools (7), which an agent carries on every turn
• Tool definitionsB · 86 of 100
• Typed results7 of 7 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 6 of 7

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• ried_taxi_get_quote

  Returns RIED.TAXI's current price for one journey, calculated by the ried.taxi backend (the only valid price source). Read-only: it never books or reserves anything. Returns quote_id (valid 30 min), status priced | manual_quote_required |…

• ried_taxi_check_availability

  Checks RIED.TAXI's real calendar (bookings, the owner's own calendar and other customers' temporary holds). One car, one driver: availability depends on the whole day including driving to the pickup and back, not only the minute…

• ried_taxi_recheck_availability

  Re-checks that the quoted date is still free right before the booking. It does NOT block or reserve the day - RIED.TAXI only blocks a day with a created booking. Returns available=true/false (with alternative dates) and held=false. Call…

• ried_taxi_create_booking

  Creates a REAL, CONFIRMED booking in RIED.TAXI's booking system and blocks the day. Only call after the customer has seen the complete trip and price and explicitly said yes. Requires the quote_id, customer_confirmed=true…

• ried_taxi_get_booking

  Returns status, pickup time, addresses, price and flight of ONE booking. Requires the booking reference and the access code the customer received when booking. Read-only.

• ried_taxi_update_booking

  Changes a booking. Always call first with mode='preview' and show the result to the customer; then call with mode='apply', customer_confirmed=true and an idempotency_key. Same-day time changes, flight number, passengers (max 5), notes and…

• ried_taxi_cancel_booking

  Cancels a booking, free of charge, any time before the pickup. Requires reference, access code, customer_confirmed=true after the customer explicitly confirmed, and an idempotency_key. Cannot be undone.