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Plain.insurance MCP server

Which MCP servers are Plain.insurance'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 2026-11-03

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Whose server it is
  • Registry nameinsurance.plain/mcpverified in the MCP registry

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

When we asked itchecked 2026-11-03
  • Stateanswerschecked 2026-11-03
  • Tools8
  • Server calls itselfplain
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-11-03 the server answered initialize and tools/list without a sign-in. First answer in 748 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: add employees and extend workers compensation cover; download policy to send to a client.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • create_onboarding, set_company_context change data without a sign-in: anyone with the address can call them.

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: 2, the first on 2026-11-03
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it0 of 2 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer766 ms
  • Space in an agent's context≈ 3,535 tokensthe definitions of all its tools (8), which an agent carries on every turn
  • Tool definitionsA · 98 of 100
  • Typed results8 of 8 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 8

What an agent can do with it

  • cannot · add employees and extend workers compensation cover
  • cannot · download policy to send to a client
  • not sure · set up health insurance for employees

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

  • Tools that change data, on a server that answers without a sign-in: create_onboarding, set_company_context

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 offers8 tools · read 2026-11-03
  • list_onboarding_catalog

    Lists the insurance products a Danish company can be offered and the questions to answer before quoting. Pass the company's CVR to resolve industry-specific questions and options. Use product slugs in `products` and question names as keys…

  • quote_onboarding_products

    Calculates indicative prices for up to twenty products for the company with this CVR, from one flat `answers` object. A plain key answers a question for the company and for every selected product that asks it; `<product>.<name>` answers…

  • create_onboarding

    Recalculates an approved quote and creates offered, unsigned policies, ready for the customer to review and sign on Plain. Send the exact quote request again with its quoteId before expiresAt; offers are created for the products with…

  • verify_onboarding_email

    Confirms the signup email with the eight-digit code the person received. Codes expire after 15 minutes and allow five attempts. Keep the returned capability and continuationToken private. Does not activate insurance.

  • get_onboarding_payment_link

    Returns a one-time link, valid for five minutes, where the person reviews the offers and sets up payment on Plain. The person must open and confirm it. Setting up payment does not accept the offers or charge money. Use the same authorized…

  • list_companies

    Requires signing in to Plain; calling it prompts sign-in when needed. Lists companies explicitly approved for this Plain connection that you still have access to, and marks the active company. Reports granted scopes and whether the…

  • set_company_context

    Requires signing in to Plain. Changes the active Plain company for subsequent tool calls on this connection. Use an exact companyId from list_companies. All chats sharing this authorization share the selection. Already-running requests…

  • list_active_policies

    Requires signing in to Plain; calling it prompts sign-in when needed. Lists the active insurance policies for the currently selected Plain company on this connection, including product, carrier, dates, price and billing details. Amounts…

How to connect

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

{
  "mcpServers": {
    "plain": {
      "type": "http",
      "url": "https://app.plain.insurance/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http plain https://app.plain.insurance/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://app.plain.insurance/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.