# MCPFax Vehicle Diagnostics Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## MCPFax Vehicle Diagnostics

Look up vehicle fault codes, recalls, and repair bulletins from NHTSA data.

- Record: https://musedirectory.ai/connector/mcpfax-vehicle-diagnostics
- Category: Lifestyle
- Developer: mcpscores.com (https://mcpscores.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 636ms, checked 2026-09-28T09:01:34Z
- Endpoint: https://mcpfax-diag.bowling-anthony.workers.dev/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T16:26:06Z)
- Source: Found in the official MCP Registry (com.mcpscores/vehicle-fault-codes) https://registry.modelcontextprotocol.io/v0/servers?search=com.mcpscores%2Fvehicle-fault-codes

Decodes OBD-II diagnostic trouble codes, retrieves official NHTSA safety recalls by VIN or vehicle details, and finds manufacturer repair guidance. Helps diagnose check-engine lights and identify open recalls before buying used cars.

Example request: "What does fault code P0301 mean on my Honda, and are there any recalls I should know about?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use MCPFax Vehicle Diagnostics to help me. It is a free service with an MCP server at https://mcpfax-diag.bowling-anthony.workers.dev/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- dtc_lookup: Look up what a vehicle fault code (OBD-II diagnostic trouble code) means. Returns a reworded definition compiled from open/public sources (with the source and licence per row) plus which makes define the code specifically. Pass 'make' for the make-specific meaning instead of the 
- vehicle_recalls: Official NHTSA safety recalls for a vehicle. Returns campaign id, affected component, the safety consequence, and the free remedy, newest first (max 50). Query by make (optionally model and year) or by a known campaign id. Use this before buying a used vehicle or when a customer 
- vehicle_tsbs: NHTSA Technical Service Bulletins (manufacturer repair guidance for known defects that are not safety recalls). Returns bulletin id, summary, and the fault codes each bulletin names (max 50). Query by make/model/year, or by fault code to find bulletins that address that specific 
- vin_decode: Decode a Vehicle Identification Number into make, model, model year, body class, engine and plant country using NHTSA's public vPIC database. Use this when you have a VIN and need the exact vehicle before looking up recalls or bulletins. Costs $0.005 USDC per call via x402 on Bas

Screening checks:
- MCP handshake: pass (Answered in 59ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcpfax-diag.bowling-anthony.workers.dev, mcpscores.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (4 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)