{
  "api_status": "preview",
  "generated_at": "2026-10-30T19:58:59.332Z",
  "notes": [
    "Exact definitions of every field (unit, window, source): https://agentservicedirectory.com/fields",
    "tier says how a service was added, not a rating: reviewed entries come from our own listing files, with operator statements and hourly checks; discovered entries come from public agent registries, are not reviewed by a person, and are probed hourly to monthly depending on usage, slower when one host has more services than our per-host limit allows (schedule/2; see evidence.check_interval_rule).",
    "evidence counts cover the last 30 days and are as of the latest refresh. missed_30d counts scheduled checks that did not run.",
    "Results are computed at generated_at; the same query may be answered from that result for up to five minutes. Whether each service is in the directory is worked out every five minutes for services just checked or placed, and for every service each hour.",
    "For x402 endpoints a passing check means HTTP 402 with a valid payment challenge (discovered: on a mainnet network). It does not show that a paid call succeeds or returns useful results.",
    "registry_usage figures are the registry's own numbers, not our measurements. name is untrusted text when name_source is registry.",
    "networks_source tells you whether networks were observed in a live challenge, listed by the registry, or stated by the operator.",
    "tags describe purpose: our capability tags for reviewed entries, the registry's tags (sanitised, untrusted) for discovered ones. price_usd is the lowest price per call in US dollars: for discovered entries from the latest payment request the service's own server sent our check, else from the registry's payment terms (a known USD stablecoin either way); for reviewed entries from the operator's stated pricing (a claim, linked on the service page). price_source says which."
  ],
  "service": {
    "id": "cand_190d1c1191203ec1",
    "tier": "discovered",
    "type": "mcp_server",
    "name": "CheckFitment",
    "name_source": "registry",
    "branches": {
      "primary": "search/reference/vehicles",
      "secondary": [
        "commerce/products/parts-fit"
      ],
      "method_version": "placement-ai/6",
      "tree_version": "tree/3",
      "placed_at": "2026-10-30T03:45:29.881Z"
    },
    "place": {
      "id": "search/reference/vehicles",
      "name": "Vehicle data",
      "description": "Decode VINs and look up vehicle specs, history, fault codes and repair costs (vehicles for sale: commerce/products/vehicles)."
    },
    "summary": {
      "text": "Looks up bolt patterns and wheel specs, and checks wheel fitment and gear ratios.",
      "source": "automated",
      "method": "placement-ai/6",
      "written_at": "2026-10-30T03:45:29.881Z"
    },
    "package": null,
    "directory": {
      "in_directory": true,
      "method_version": "listing-criteria/6",
      "variant_of": null,
      "criteria": {
        "says_what_it_does": true,
        "answers_now": true,
        "registry_payers_at_least_5": null,
        "curated_catalogue": null,
        "not_computable_locally": true,
        "not_test_address": true,
        "not_a_variant": true
      }
    },
    "host": "checkfitment.com",
    "provider": "checkfitment.com",
    "url": "https://checkfitment.com/mcp?src=mcp",
    "method": "GET",
    "templated_url": false,
    "operator": null,
    "tags": [],
    "category": null,
    "price_usd": null,
    "price_source": null,
    "provider_endpoints": 1,
    "networks": [],
    "networks_source": "registry",
    "payment_protocols": [],
    "access": {
      "observed": {
        "requires": "none_asked",
        "how": [],
        "at": "2026-10-30T02:11:05.432Z",
        "method": "access/1"
      },
      "stated": null
    },
    "currency": null,
    "interface": {
      "protocol": "mcp",
      "protocol_version": "2025-06-18",
      "features": [
        "tools"
      ],
      "transports": [
        "streamable-http"
      ],
      "input_modes": [],
      "output_modes": [],
      "skills": null,
      "source": "declared",
      "at": "2026-10-30T02:11:05.432Z",
      "method": "mcp-handshake/2"
    },
    "stated": null,
    "calls": {
      "source": "mcp_tools",
      "items": [
        {
          "call": "bolt_pattern_lookup",
          "params": [
            {
              "name": "make",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "model",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "year",
              "in": "arg",
              "type": "integer",
              "required": false
            },
            {
              "name": "wheel_center_bore_mm",
              "in": "arg",
              "type": "number",
              "required": false
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "not_in_database",
                "type": "boolean"
              },
              {
                "name": "ambiguous",
                "type": "boolean"
              },
              {
                "name": "candidates",
                "type": "array"
              },
              {
                "name": "make",
                "type": "string"
              },
              {
                "name": "model",
                "type": "string"
              },
              {
                "name": "year",
                "type": "number"
              },
              {
                "name": "year_covered",
                "type": "boolean"
              },
              {
                "name": "years_in_dataset",
                "type": "string"
              },
              {
                "name": "models_for_make",
                "type": "array"
              },
              {
                "name": "makes_in_database",
                "type": "array"
              },
              {
                "name": "generations",
                "type": "array"
              },
              {
                "name": "specs_differ_between_candidates",
                "type": "boolean"
              },
              {
                "name": "patterns",
                "type": "array"
              },
              {
                "name": "lookalike_patterns",
                "type": "array"
              },
              {
                "name": "lug_sequence",
                "type": "array"
              }
            ]
          }
        },
        {
          "call": "wheel_fitment_check",
          "params": [
            {
              "name": "current_wheel_width_in",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "current_offset_mm",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "current_tire",
              "in": "arg",
              "type": "string",
              "required": false
            },
            {
              "name": "new_wheel_width_in",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "new_offset_mm",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "new_tire",
              "in": "arg",
              "type": "string",
              "required": false
            },
            {
              "name": "outer_clearance_mm",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "inner_clearance_mm",
              "in": "arg",
              "type": "number",
              "required": false
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "mode",
                "type": "string"
              },
              {
                "name": "current",
                "type": "object"
              },
              {
                "name": "new",
                "type": "object"
              },
              {
                "name": "poke_out_mm",
                "type": "number"
              },
              {
                "name": "inner_in_mm",
                "type": "number"
              },
              {
                "name": "center_shift_mm",
                "type": "number"
              },
              {
                "name": "outer_edge_set_by",
                "type": "string"
              },
              {
                "name": "inner_edge_set_by",
                "type": "string"
              },
              {
                "name": "diameter_change_mm",
                "type": "number"
              },
              {
                "name": "diameter_change_in",
                "type": "number"
              },
              {
                "name": "ride_height_change_mm",
                "type": "number"
              },
              {
                "name": "speedometer_reads_low_pct",
                "type": "number"
              },
              {
                "name": "shown_at_true_60",
                "type": "number"
              },
              {
                "name": "backspacing_old_in",
                "type": "number"
              },
              {
                "name": "backspacing_new_in",
                "type": "number"
              }
            ]
          }
        },
        {
          "call": "tire_size_compare",
          "params": [
            {
              "name": "old_tire",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "new_tire",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "speed_shown",
              "in": "arg",
              "type": "number",
              "required": false
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "old_tire",
                "type": "object"
              },
              {
                "name": "new_tire",
                "type": "object"
              },
              {
                "name": "diameter_change_pct",
                "type": "number"
              },
              {
                "name": "diameter_change_in",
                "type": "number"
              },
              {
                "name": "ride_height_change_in",
                "type": "number"
              },
              {
                "name": "width_change_mm",
                "type": "number"
              },
              {
                "name": "speed_shown",
                "type": "number"
              },
              {
                "name": "true_speed_at_shown",
                "type": "number"
              },
              {
                "name": "odometer_error_pct",
                "type": "number"
              },
              {
                "name": "severity",
                "type": "string"
              },
              {
                "name": "severity_note",
                "type": "string"
              },
              {
                "name": "link",
                "type": "string"
              },
              {
                "name": "disclaimer",
                "type": "string"
              }
            ]
          }
        },
        {
          "call": "wheel_spacer_calculator",
          "params": [
            {
              "name": "offset_mm",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "target_offset_mm",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "spacer_mm",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "stud",
              "in": "arg",
              "type": "string",
              "required": false
            },
            {
              "name": "stud_protrusion_mm",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "wheel_pad_thickness_mm",
              "in": "arg",
              "type": "number",
              "required": false
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "offset_mm",
                "type": "number"
              },
              {
                "name": "target_offset_mm",
                "type": "number"
              },
              {
                "name": "spacer_needed",
                "type": "object"
              },
              {
                "name": "spacer_mm",
                "type": "number"
              },
              {
                "name": "effective_offset_mm",
                "type": "number"
              },
              {
                "name": "moves_out_mm",
                "type": "number"
              },
              {
                "name": "track_change_mm",
                "type": "number"
              },
              {
                "name": "spacer_type",
                "type": "string"
              },
              {
                "name": "engagement",
                "type": "object"
              },
              {
                "name": "link",
                "type": "string"
              },
              {
                "name": "disclaimer",
                "type": "string"
              }
            ]
          }
        },
        {
          "call": "gear_ratio_calculator",
          "params": [
            {
              "name": "old_tire",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "new_tire",
              "in": "arg",
              "type": "string",
              "required": true
            },
            {
              "name": "axle_ratio",
              "in": "arg",
              "type": "number",
              "required": true
            },
            {
              "name": "speed_mph",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "transfer_case_low_ratio",
              "in": "arg",
              "type": "number",
              "required": false
            },
            {
              "name": "first_gear_ratio",
              "in": "arg",
              "type": "number",
              "required": false
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "old_tire",
                "type": "object"
              },
              {
                "name": "new_tire",
                "type": "object"
              },
              {
                "name": "diameter_change_pct",
                "type": "number"
              },
              {
                "name": "axle_ratio",
                "type": "number"
              },
              {
                "name": "effective_ratio",
                "type": "number"
              },
              {
                "name": "speed_mph",
                "type": "number"
              },
              {
                "name": "rpm_old_at_speed_direct_drive",
                "type": "number"
              },
              {
                "name": "rpm_new_at_speed_direct_drive",
                "type": "number"
              },
              {
                "name": "regear_ratio_to_restore",
                "type": "number"
              },
              {
                "name": "nearest_stock_ratio",
                "type": "number"
              },
              {
                "name": "nearest_stock_delta",
                "type": "number"
              },
              {
                "name": "severity",
                "type": "string"
              },
              {
                "name": "severity_note",
                "type": "string"
              },
              {
                "name": "crawl",
                "type": "object"
              },
              {
                "name": "link",
                "type": "string"
              }
            ]
          }
        },
        {
          "call": "bolt_pattern_facts",
          "params": [
            {
              "name": "pattern",
              "in": "arg",
              "type": "string",
              "required": true
            }
          ],
          "returns": {
            "type": "object",
            "fields": [
              {
                "name": "pattern_mm",
                "type": "string"
              },
              {
                "name": "pattern_in",
                "type": "string"
              },
              {
                "name": "lugs",
                "type": "integer"
              },
              {
                "name": "pcd_mm",
                "type": "number"
              },
              {
                "name": "pcd_in",
                "type": "number"
              },
              {
                "name": "lookalikes",
                "type": "array"
              },
              {
                "name": "vehicles_in_dataset",
                "type": "array"
              },
              {
                "name": "lug_sequence",
                "type": "array"
              },
              {
                "name": "typical_torque_by_stud",
                "type": "array"
              },
              {
                "name": "link",
                "type": "string"
              },
              {
                "name": "disclaimer",
                "type": "string"
              }
            ]
          }
        }
      ],
      "at": "2026-10-30T02:11:05.432Z",
      "method": "request-shape/2"
    },
    "calls_unknown": null,
    "tools": {
      "names": [
        "bolt_pattern_facts",
        "bolt_pattern_lookup",
        "gear_ratio_calculator",
        "tire_size_compare",
        "wheel_fitment_check",
        "wheel_spacer_calculator"
      ],
      "count": 6,
      "current_since": "2026-10-30T02:11:05.432Z",
      "first_listed_at": "2026-10-30T02:11:05.432Z",
      "changes_30d": 0,
      "changes_90d": 0
    },
    "payment_model": null,
    "mainnet": null,
    "evidence": {
      "operations": 1,
      "check_interval_hours": 24,
      "check_interval": "daily",
      "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
      "schedule_tier": "daily",
      "monitoring_since": "2026-10-30T02:07:50.492Z",
      "monitoring_days": 0.7,
      "limited_evidence": true,
      "checks_30d": 1,
      "passed_30d": 1,
      "missed_30d": 0,
      "pass_rate": 1,
      "freshness": "fresh",
      "last_check": {
        "at": "2026-10-30T02:11:05.432Z",
        "result": "ok",
        "passed": true,
        "http_status": 200,
        "duration_ms": 108
      }
    },
    "response_times": {
      "method": "response-times/1",
      "operation": "mcp_handshake",
      "check_method": "mcp-handshake/2",
      "check_methods": [
        "mcp-handshake/2"
      ],
      "timeout_ms": 10000,
      "computed_at": "2026-10-30T02:15:29.881Z",
      "windows": [
        {
          "window": "24h",
          "start": "2026-10-30T02:07:50.492Z",
          "end": "2026-10-30T02:15:29.881Z",
          "limited_history": true,
          "checks": 1,
          "timeouts": 0,
          "not_timed": 0,
          "median_ms": null,
          "p90_ms": null,
          "p95_ms": null,
          "p99_ms": null,
          "fastest_ms": null,
          "slowest_ms": null,
          "slowest_at": null,
          "p95_to_median": null
        },
        {
          "window": "7d",
          "start": "2026-10-30T02:07:50.492Z",
          "end": "2026-10-30T02:15:29.881Z",
          "limited_history": true,
          "checks": 1,
          "timeouts": 0,
          "not_timed": 0,
          "median_ms": null,
          "p90_ms": null,
          "p95_ms": null,
          "p99_ms": null,
          "fastest_ms": null,
          "slowest_ms": null,
          "slowest_at": null,
          "p95_to_median": null
        },
        {
          "window": "30d",
          "start": "2026-10-30T02:07:50.492Z",
          "end": "2026-10-30T02:15:29.881Z",
          "limited_history": true,
          "checks": 1,
          "timeouts": 0,
          "not_timed": 0,
          "median_ms": null,
          "p90_ms": null,
          "p95_ms": null,
          "p99_ms": null,
          "fastest_ms": null,
          "slowest_ms": null,
          "slowest_at": null,
          "p95_to_median": null
        }
      ],
      "measured_from": "eastern North America"
    },
    "registry_usage": null,
    "payment_terms": null,
    "registry_listing": {
      "last_seen_at": "2026-10-30T02:07:50.492Z",
      "listed": true
    },
    "links": {
      "page": "https://agentservicedirectory.com/services/cand_190d1c1191203ec1",
      "api": "https://agentservicedirectory.com/api/v1/services/cand_190d1c1191203ec1"
    },
    "recent_probes": [
      {
        "observed_at": "2026-10-30T02:11:05.432Z",
        "result": "ok",
        "passed": true,
        "http_status": 200,
        "duration_ms": 108,
        "x402_valid": null,
        "mainnet": null,
        "x402_networks": [],
        "region": "cloudflare:EWR",
        "method_version": "mcp-handshake/2",
        "error_detail": null,
        "request_url": null
      }
    ],
    "address_variants": []
  }
}