ReplacementHQ MCP

A read-only MCP server providing access to ReplacementHQ's register of 3D printer materials and wear parts. It allows AI assistants to look up compatibility information for specific printers and materials using a single tool, or access the entire register as a resource.

Visit ReplacementHQ

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by ReplacementHQ

MCP endpoint (Streamable HTTP)

https://replacementhq.co.uk/mcp

Vendor documentation

What its tools do

1 tool, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (1)

lookup_printer_parts

1 of 1 have a description · 1 of 1 declare behavior hints · 1 of 1 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 1:25 PM UTC
Passed Official MCP Registry namespace is tied to replacementhq.co.uk · Nov 6, 2026, 1:23 PM UTC
Passed Endpoint is on the registry namespace domain · Nov 6, 2026, 1:23 PM UTC
Warning Advertises resources/templates/list but does not implement it
Availability 1 of 1 checks passed in 30 days

What you can do with it

Look up compatible materials for a specific 3D printer
Find replacement parts for a specific 3D printer
Access the full printer parts register

Source and maintenance

Vendor evidenceRegistry 1.0.1

mcp-registry: uk.co.replacementhq/printer-parts-register@1.0.1 Project website

Protocol and capabilities

Server: replacementhq-data 2026-11-02
MCP protocol negotiated in check: 2025-06-18
Tools: 1 advertised
Resources: 1 advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {},
  "resources": {}
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Read-only ReplacementHQ register of 3D printer materials and wear parts, each answer quoted from the maker's own page. Use lookup_printer_parts or read replacementhq://register.

Tools

1 advertised

lookup_printer_parts — Look up 3D printer parts

Advertised by the server during the last successful anonymous check.

Advertised read-only

Look up ReplacementHQ's register of 3D printer materials and wear parts (Bambu Lab and Prusa). Each answer quotes the maker's own page with its address and the date it was read. Checking is not physical testing.

lookup_printer_parts input schema

{
  "type": "object",
  "properties": {
    "part": {
      "type": "string",
      "description": "Material or part, e.g. \"PETG\", \"nozzle\", \"build plate\"."
    },
    "printer": {
      "type": "string",
      "description": "Printer name or slug, e.g. \"A1\", \"MK4S\", \"bambu-lab-p1s\"."
    }
  },
  "additionalProperties": false
}

lookup_printer_parts annotations

{
  "title": "Look up 3D printer parts",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

ReplacementHQ printer parts register

Advertised by the server during the last successful anonymous check.

Every printer and its material and part answers, with the maker's quote, page address and date.

ReplacementHQ printer parts register URI

replacementhq://register

MIME type: application/json

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

2026-11-06: 1 of 1 checks answered
2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 476 ms
95th percentile latency: 476 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 1:25 PM UTC · probe · passed · 476 ms · metadata changed · 1 tool(s), 1 resource(s); warnings: Advertises resources/templates/list but does not implement it

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http replacementhq-mcp https://replacementhq.co.uk/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add replacementhq-mcp --url https://replacementhq.co.uk/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable replacementhq-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "replacementhq-mcp": {
      "url": "https://replacementhq.co.uk/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "replacementhq-mcp": {
      "type": "streamableHttp",
      "url": "https://replacementhq.co.uk/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start replacementhq-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "replacementhq-mcp": {
      "type": "http",
      "url": "https://replacementhq.co.uk/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http replacementhq-mcp https://replacementhq.co.uk/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://replacementhq.co.uk/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "replacementhq-mcp": {
      "serverUrl": "https://replacementhq.co.uk/mcp"
    }
  }
}

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Do you run ReplacementHQ MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

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