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MapPoster MCP server

Which servers in the official MCP registry are MapPoster's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-21

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Whose server it is
  • Registry namexyz.mapposter/mapposterverified in the MCP registry

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

When we asked itchecked 2026-10-21
  • Stateanswerschecked 2026-10-21
  • Tools3
  • Server calls itselfmapposter
  • Server version1.2.0
  • Protocol version2025-06-18

On 2026-10-21 the server answered initialize and tools/list without a sign-in. First answer in 323 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 3 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 1 of 3 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: 3, the first on 2026-10-21
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
  • Answeredmeasuring3 of the 7 daily checks it takes to print a share
  • Median first answer198 ms
  • Space in an agent's context≈ 3,060 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsA · 94 of 100
  • Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 3

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 2026-10-21
  • search_location

    Use this when a map poster needs a place's coordinates, such as the street or venue to mark (where a couple met, a new home), or when the place the user named is ambiguous (several towns share the name) and they should pick one. Finds a…

  • list_themes

    Use this when the user wants to see or choose a map poster's style: its colors, a mood (minimalist, black and white, vintage, blueprint, dark, pastel, or pink for a wedding or anniversary) or a theme by name. Lists the MapPoster themes…

  • create_poster

    Designs a map poster and shows it in the chat. Use this when the user wants a map poster, map print, map wall art or map wallpaper of a real place, or a map poster as an anniversary, Valentine's, wedding, engagement or housewarming gift…

How to connect

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

{
  "mcpServers": {
    "mapposter": {
      "type": "http",
      "url": "https://mcp.mapposter.xyz/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mapposter https://mcp.mapposter.xyz/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.mapposter.xyz/mcp as a custom connector in the settings.

OpenAPI spec

7 paths, read 2026-10-21. Open the spec ↗

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.