Tool detail

rates

Returns committed IFTA fuel-tax rates by jurisdiction and fuel type for a given quarter, with effective periods clipped to that quarter; human-reviewed each quarter.

Categories: Government public data

Use when

get IFTA diesel tax rates for a jurisdiction and quarter
look up quarterly fuel-tax rates for trucking compliance

Not for

not quarter-over-quarter deltas — use the /changes endpoint for that
not free — the /quarters and /jurisdictions catalogs are free, this endpoint is paid

Inputs

GET query params (all optional): quarter (e.g. 2026-Q2), fuel_type, jurisdiction (e.g. WA).

Admitted input schema

{
  "type": "object",
  "properties": {
    "fuel_type": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    },
    "jurisdiction": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    },
    "quarter": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://api.freestylevault.com/v1/rates

Payment

Protocol: x402
Listed price: 0.005 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://api.freestylevault.com/v1/rates
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z