# Faultcode Diagnostic MCP – Technical Service Bulletins (TSBs)

> Faultcode Diagnostic MCP – Technical Service Bulletins (TSBs) is a paid API for AI agents from faultcode-diagnostic-mcp.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Retrieves manufacturer-published Technical Service Bulletins (TSBs) for a vehicle or fault code, listing documented fixes for known problems.

## Facts

- Endpoint: GET https://faultcode-diagnostic-mcp.bowling-anthony.workers.dev/tsbs
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/faultcode-diagnostic-mcp-technical-service-bulletins-tsbs-16fe0fa7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qiG1taWzUQEhHfG9Fgn8_

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability faultcode-diagnostic-mcp-technical-service-bulletins-tsbs-16fe0fa7
```

Example prompt: Can you look up any Technical Service Bulletins for a 2019 Toyota Camry with a P0420 catalyst efficiency fault code — I want to see what fixes the manufacturer has already documented for this problem.

## When to prefer this

Use this endpoint when you need to know what fixes a manufacturer has already officially documented for a vehicle problem or fault code — especially before recommending repairs, visiting a dealer, or diagnosing a recurring issue. Prefer this over generic web searches when you want structured, source-attributed TSB data rather than forum advice. It complements the sibling fault code definition endpoint (which explains what a code means) by telling you what the manufacturer says to do about it.

## Known failure modes

- No TSBs found for the specified vehicle or fault code (empty result set)
- Invalid or unrecognized fault code format returns no matches
- Unsupported make/model/year combination returns empty results
- Network or worker timeout if the upstream data source is unavailable
- Missing required query parameters returns an error

## How this service works

Technical service bulletins for a vehicle or a fault code — the fixes a manufacturer has already documented for a known problem.

## Output

A list of Technical Service Bulletins (TSBs) matching the query, including TSB numbers, bulletin titles, affected vehicle details, and the manufacturer's documented repair procedures or fixes for each known problem.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/faultcode-diagnostic-mcp-technical-service-bulletins-tsbs-16fe0fa7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from faultcode-diagnostic-mcp.bowling-anthony.workers.dev](https://www.zero.xyz/host/faultcode-diagnostic-mcp.bowling-anthony.workers.dev/llms.txt)