{
  "name": "411 Data API",
  "version": "3.2.0",
  "description": "Comprehensive vehicle specification data: towing, bolt patterns, tires, oil, horsepower, wipers, battery, bulbs, fuel tank, brake pads, oil filters, transmission, EV charging, and VIN. 238,744 records across 13 datasets. The most complete vehicle specs API available.",
  "documentation": "https://autoapi411.com",
  "datasets": {
    "towing": {
      "records": 28812,
      "makes": 27,
      "models": 89,
      "years": "2015-2026",
      "fields": [
        "trim",
        "engine",
        "drivetrain",
        "max_towing_lbs",
        "max_payload_lbs",
        "gvwr_lbs"
      ]
    },
    "bolt_patterns": {
      "records": 2910,
      "makes": 69,
      "models": 2400,
      "years": "1971-2026",
      "fields": [
        "bolt_pattern",
        "lugs",
        "pcd",
        "pcd_inches",
        "offset",
        "center_bore",
        "stud_size"
      ]
    },
    "tires": {
      "records": 13597,
      "makes": 29,
      "models": 262,
      "years": "2000-2026",
      "fields": [
        "oem_tire_size",
        "bolt_pattern",
        "tire_pressure",
        "load_index",
        "speed_rating",
        "compatible_sizes",
        "rim_sizes",
        "tpms_type"
      ]
    },
    "oil": {
      "records": 78416,
      "makes": 26,
      "models": 247,
      "years": "2001-2026",
      "fields": [
        "oil_capacity_quarts",
        "oil_type",
        "oil_viscosity",
        "engine",
        "drivetrain"
      ]
    },
    "horsepower": {
      "records": 32207,
      "makes": 63,
      "models": 243,
      "years": "2000-2026",
      "fields": [
        "horsepower",
        "cylinders",
        "displacement",
        "city_mpg",
        "highway_mpg",
        "combined_mpg",
        "fuel_type",
        "transmission"
      ]
    },
    "wipers": {
      "records": 6583,
      "makes": 30,
      "models": 200,
      "years": "2000-2026",
      "fields": [
        "driver_size",
        "passenger_size",
        "rear_size"
      ]
    },
    "battery": {
      "records": 60869,
      "makes": 30,
      "models": 213,
      "years": "2000-2026",
      "fields": [
        "battery_group",
        "cca",
        "voltage",
        "chemistry"
      ]
    },
    "bulbs": {
      "records": 909,
      "makes": 25,
      "models": 150,
      "years": "2000-2026",
      "fields": [
        "low_beam",
        "high_beam",
        "fog_light",
        "tail_light",
        "turn_signal"
      ]
    },
    "fuel_tank": {
      "records": 4140,
      "makes": 25,
      "models": 150,
      "years": "2000-2026",
      "fields": [
        "fuel_tank_capacity_gal",
        "vehicle_category"
      ]
    },
    "brake_pads": {
      "records": 2820,
      "makes": 25,
      "models": 150,
      "years": "2000-2026",
      "fields": [
        "front_brake_pad_size",
        "rear_brake_pad_size",
        "brake_type"
      ]
    },
    "oil_filter": {
      "records": 2820,
      "makes": 25,
      "models": 150,
      "years": "2000-2026",
      "fields": [
        "oil_filter_size",
        "oil_filter_part_number"
      ]
    },
    "transmission": {
      "records": 2820,
      "makes": 25,
      "models": 150,
      "years": "2000-2026",
      "fields": [
        "transmission_type",
        "transmission_speeds",
        "drive_type"
      ]
    },
    "ev_charging": {
      "records": 1841,
      "makes": 52,
      "models": 150,
      "years": "2011-2026",
      "fields": [
        "ev_type",
        "battery_kwh",
        "range_miles",
        "efficiency_mi_kwh",
        "mpge_combined",
        "drive",
        "home_full_charge",
        "dc_fast_full_charge",
        "home_cost_per_mile",
        "dc_fast_cost_per_mile",
        "ev_cost_per_mile",
        "gas_cost_per_mile",
        "savings_per_mile",
        "annual_savings_vs_gas"
      ]
    }
  },
  "endpoints": {
    "GET /v1/makes": "List all vehicle makes across all datasets",
    "GET /v1/models?make=Ford": "List all models for a given make (with dataset availability)",
    "GET /v1/towing?make=Ford&model=F-150": "Query towing capacity (filters: year, trim, drivetrain, engine, min_towing)",
    "GET /v1/bolt-pattern?make=Toyota&model=Camry": "Query bolt patterns (filters: year, pattern)",
    "GET /v1/tires?make=Honda&model=Civic": "Query tire specs (filters: year, trim, tire_size)",
    "GET /v1/oil?make=Toyota&model=Camry": "Query oil capacity (filters: year, trim, engine, oil_type)",
    "GET /v1/horsepower?make=Ford&model=Mustang": "Query horsepower and MPG (filters: year, min_hp, fuel_type)",
    "GET /v1/fuel-tank?make=Toyota&model=Camry&year=2024": "Query fuel tank capacity (filters: make, model, year)",
    "GET /v1/brake-pads?make=Toyota&model=Camry&year=2024": "Query brake pad sizes (filters: make, model, year)",
    "GET /v1/oil-filter?make=Toyota&model=Camry&year=2024": "Query oil filter sizes (filters: make, model, year)",
    "GET /v1/transmission?make=Toyota&model=Camry&year=2024": "Query transmission specs (filters: make, model, year)",
    "GET /v1/vehicle?make=Ford&model=F-150&year=2024": "Combined lookup across all datasets",
    "GET /v1/wipers?make=Ford&model=F-150&year=2024": "Query wiper blade sizes (filters: make, model, year)",
    "GET /v1/battery?make=Ford&model=F-150&year=2024": "Query battery specifications (filters: make, model, year)",
    "GET /v1/bulbs?make=Ford&model=F-150&year=2024": "Query bulb specifications (filters: make, model, year)",
    "GET /v1/vin?vin=1HGBH41JXMN109186": "Decode any VIN (17 chars) - returns make, model, year, engine, body class, etc.",
    "GET /v1/ev-charging?make=Tesla&model=Model+3": "Query EV charging specs - battery, range, efficiency, home/DC fast charging costs (filters: make, model, year)"
  },
  "authentication": "Include X-Api-Key header. Get a free key at https://411specs.com/#signup",
  "rate_limits": {
    "basic": "3,000 requests/month (free)",
    "pro": "$19/mo — 50,000 requests/month",
    "ultra": "$49/mo — 200,000 requests/month",
    "mega": "$149/mo — 1,000,000 requests/month"
  },
  "total_records": 240548
}