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Black Car Service MCP server

Which MCP servers are Black Car Service's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is
  • Registry nameco.blackcarservice.www/ride-quotesverified in the MCP registry

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

When we asked itchecked 2026-10-19
  • Stateanswerschecked 2026-10-19
  • Tools3
  • Server calls itselfbcs-crm-quote
  • Server version1.3.0
  • Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 1602 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.

Once connected

  • Parameters are untyped or undescribed in 3 of 5 tools: check arguments before calling.

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.

Measured dailydaily checks: 17, the first on 2026-10-19
  • INITE MCP score95 of 100answers 95 · definitions 90 · context 100 · connects 100
  • Answered100% of days17 of 17 daily checks
  • Median first answer1479 ms
  • Space in an agent's context≈ 2,041 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 90 of 100
  • Typed results0 of 5 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 3 of 5

What an agent can do with it

  • not sure · book airport transfers to and from SFO, OAK or SJC
  • not sure · arrange hourly chauffeur service between stops during a day
  • not sure · book point-to-point rides or Napa and Sacramento trips

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

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 →

Tools it offers3 tools · read 2026-10-19
  • quote_ride

    Estimate Black Car Service SUV fares in the San Francisco Bay Area for SFO, OAK and SJC airport transfers, point-to-point rides and hourly chauffeur service, for 1–6 passengers. Pickup and destination must both resolve to California or…

  • check_ride_availability

    Check a requested Bay Area SUV pickup time against current scheduling constraints. Pickup and destination must both resolve to California or Nevada, and at least one endpoint must be in the nine-county San Francisco Bay Area. Supply the…

  • book_ride

    After the customer explicitly confirms a quote_ride estimate and trip, create a pending reservation and return its secure website checkout link. Requires the exact signed booking_token from that quote plus customer-provided name, email…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "ride-quotes": {
      "type": "http",
      "url": "https://www.blackcarservice.co/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http blackcarservice https://www.blackcarservice.co/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://www.blackcarservice.co/api/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.