# CarWallet — Vehicle Licence Disc Renewal & Compliance

> Calculate South African vehicle licence disc renewal fees, penalties, and compliance status.

- name: za.co.carwallet/carwallet-mcp
- version: 2.0.1
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 70/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/za.co.carwallet%2Fcarwallet-mcp
- tools: https://api.protogrid.dev/v1/servers/za.co.carwallet%2Fcarwallet-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "carwallet-mcp": {
      "type": "http",
      "url": "https://api.carwallet.co.za/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-97% +updated-16d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 70/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 75 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: calculate_fleet_sars_roi (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_sars_trips (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_platform_metrics (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,001 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: 50 (weight 15)

- warn `stability.changes`: 20 tool changes in 30 days
- fail `stability.rug_pull`: 20 tools kept their name but changed most of their description in 30 days; review before trusting them
- pass `stability.new_links`: no tool change named a new site

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 10, about 1,001 tokens to load them all
- tool set hash: 0cfbd949655e61ef2885ff143fd8addb
- tools last changed: 2026-10-31T21:33:15.146Z
- badge: [![protogrid quality](https://protogrid.dev/badge/za.co.carwallet/carwallet-mcp.svg)](https://protogrid.dev/servers/za.co.carwallet/carwallet-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-31 `get_service_records` changed (title, description, annotations) **meaning changed**
  - before: Retrieve vehicle maintenance and service history records, including service dates, odometers, service types, costs, and service center names. When to use: Call this tool when you specifically need to execute 'get_service_records' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: vehicle_id (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Retrieve vehicle maintenance and service history records, including service dates, odometers, service types, costs, and service center names.
- 2026-10-31 `get_sars_summary` changed (title, description, inputSchema, annotations) **meaning changed**
  - before: Calculate official SARS travel allowance tax pack totals for a vehicle across the South African tax year (1 March to 28/29 February), returning total km, business km, business %, and total fuel expenditure. When to use: Call this tool when you specifically need to execute 'get_sars_summary' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: vehicle_id (required), tax_year (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Calculate official SARS travel allowance tax pack totals for a vehicle across the South African tax year (1 March to 28/29 February), returning total km, business km, business %, and total fuel expenditure.
- 2026-10-31 `list_sars_trips` changed (title, description, inputSchema, annotations) **meaning changed**
  - before: Retrieve SARS Section 8(1)(b) compliant business and private travel logs, including trip date, starting odometer, ending odometer, distance in km, destination, and specific business purpose. When to use: Call this tool when you specifically need to execute 'list_sars_trips' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: vehicle_id (optional), is_business (optional), limit (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Retrieve SARS Section 8(1)(b) compliant business and private travel logs, including trip date, starting odometer, ending odometer, distance in km, destination, and specific business purpose.
- 2026-10-31 `list_fuel_logs` changed (title, description, annotations) **meaning changed**
  - before: Retrieve recent fuel fill-up records for the user's vehicles, including litres pumped, fuel grade, price per litre, total ZAR cost, station name, logged date, and calculated L/100km fuel economy. When to use: Call this tool when you specifically need to execute 'list_fuel_logs' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: vehicle_id (optional), limit (optional), search (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Retrieve recent fuel fill-up records for the user's vehicles, including litres pumped, fuel grade, price per litre, total ZAR cost, station name, logged date, and calculated L/100km fuel economy.
- 2026-10-31 `list_vehicles` changed (title, description, annotations) **meaning changed**
  - before: List all vehicles registered in the authenticated user's CarWallet garage, including make, model, year, license plate, current odometer, fuel type, and tank capacity. When to use: Call this tool when you specifically need to execute 'list_vehicles' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: none required (zero-argument query). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: List all vehicles registered in the authenticated user's CarWallet garage, including make, model, year, license plate, current odometer, fuel type, and tank capacity.
- 2026-10-31 `get_platform_metrics` changed (title, description, annotations) **meaning changed**
  - before: Inspect live CarWallet platform telemetry (registered drivers, vehicles, fuel logs, and SARS travel trips). When to use: Call this tool when you specifically need to execute 'get_platform_metrics' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: none required (zero-argument query). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Inspect live CarWallet platform telemetry (registered drivers, vehicles, fuel logs, and SARS travel trips).
- 2026-10-31 `get_sars_compliance_guide` changed (title, description, annotations) **meaning changed**
  - before: Get authoritative South African SARS Section 8(1)(b) travel logbook rules, Tax Administration Act Section 29 5-year retention requirements, mandatory logbook fields, and thermal receipt rules. When to use: Call this tool when you specifically need to execute 'get_sars_compliance_guide' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'calculate_fleet_sars_roi' for their respective operations). Parameters: none required (zero-argument query). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Get authoritative South African SARS Section 8(1)(b) travel logbook rules, Tax Administration Act Section 29 5-year retention requirements, mandatory logbook fields, and thermal receipt rules.
- 2026-10-31 `calculate_fleet_sars_roi` changed (title, description, annotations) **meaning changed**
  - before: Calculate 3-year SARS Section 8(1)(b) travel tax deduction, corporate tax cash return (27%), phantom fuel savings, and 3-year contract savings vs. legacy R399/mo tracking contracts. When to use: Call this tool when you specifically need to execute 'calculate_fleet_sars_roi' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'get_product_catalog' or 'get_sars_compliance_guide' for their respective operations). Parameters: fleet_size (optional), annual_business_km (optional), sars_rate_per_km (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Calculate 3-year SARS Section 8(1)(b) travel tax deduction, corporate tax cash return (27%), phantom fuel savings, and 3-year contract savings vs. legacy R399/mo tracking contracts.
- 2026-10-31 `get_product_catalog` changed (title, description, annotations) **meaning changed**
  - before: Get CarWallet 4G OBD-II GPS Tracker hardware specs (Powered by Teltonika), Starter Bundle pricing (R1,809), Pro Telematics subscription (R110/month), Free App features, and direct checkout URL. When to use: Call this tool when you specifically need to execute 'get_product_catalog' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_fuel_prices' or 'calculate_fleet_sars_roi' or 'get_sars_compliance_guide' for their respective operations). Parameters: none required (zero-argument query). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Get CarWallet 4G OBD-II GPS Tracker hardware specs (Powered by Teltonika), Starter Bundle pricing (R1,809), Pro Telematics subscription (R110/month), Free App features, and direct checkout URL.
- 2026-10-31 `get_fuel_prices` changed (title, description, inputSchema, annotations) **meaning changed**
  - before: Get official South African regulated fuel prices (95 ULP, 93 ULP, 50ppm Diesel) from the Central Energy Fund (CEF), including next price adjustment date and projected change. When to use: Call this tool when you specifically need to execute 'get_fuel_prices' on CarWallet Vehicle Compliance (carwallet.co.za). Do NOT use this tool when another specialized tool fits better (use 'get_product_catalog' or 'calculate_fleet_sars_roi' or 'get_sars_compliance_guide' for their respective operations). Parameters: fuel_grade (optional), region (optional). Behavior & Side Effects: Strictly read-only, idempotent query with zero state mutation; public unauthenticated access allowed; rate-limited to 60 requests/min per IP. Returns: Structured JSON object containing status, matched records or computed metrics, and canonical action URLs.
  - after: Get official South African regulated fuel prices (95 ULP, 93 ULP, 50ppm Diesel) from the Central Energy Fund (CEF), including next price adjustment date and projected change.

Full history: https://api.protogrid.dev/v1/servers/za.co.carwallet%2Fcarwallet-mcp/changes

## Remotes

- https://api.carwallet.co.za/mcp (streamable-http, auth none, reachable true, uptime30d 0.9677419)

## Packages

_none_

## Tools (10)

- `calculate_fleet_sars_roi`: Calculate 3-year SARS Section 8(1)(b) travel tax deduction, corporate tax cash return (27%), phantom fuel savings, and 3-year contract savings vs. legacy R399/mo tracking contracts.
- `get_fuel_prices`: Get official South African regulated fuel prices (95 ULP, 93 ULP, 50ppm Diesel) from the Central Energy Fund (CEF), including next price adjustment date and projected change.
- `get_platform_metrics`: Inspect live CarWallet platform telemetry (registered drivers, vehicles, fuel logs, and SARS travel trips).
- `get_product_catalog`: Get CarWallet 4G OBD-II GPS Tracker hardware specs (Powered by Teltonika), Starter Bundle pricing (R1,809), Pro Telematics subscription (R110/month), Free App features, and direct checkout URL.
- `get_sars_compliance_guide`: Get authoritative South African SARS Section 8(1)(b) travel logbook rules, Tax Administration Act Section 29 5-year retention requirements, mandatory logbook fields, and thermal receipt rules.
- `get_sars_summary`: Calculate official SARS travel allowance tax pack totals for a vehicle across the South African tax year (1 March to 28/29 February), returning total km, business km, business %, and total fuel expenditure.
- `get_service_records`: Retrieve vehicle maintenance and service history records, including service dates, odometers, service types, costs, and service center names.
- `list_fuel_logs`: Retrieve recent fuel fill-up records for the user's vehicles, including litres pumped, fuel grade, price per litre, total ZAR cost, station name, logged date, and calculated L/100km fuel economy.
- `list_sars_trips`: Retrieve SARS Section 8(1)(b) compliant business and private travel logs, including trip date, starting odometer, ending odometer, distance in km, destination, and specific business purpose.
- `list_vehicles`: List all vehicles registered in the authenticated user's CarWallet garage, including make, model, year, license plate, current odometer, fuel type, and tank capacity.