name: FastForex Rate Limits
description: Rate limiting details for the FastForex currency exchange rate API. Limits are based on monthly API call quotas per plan, with each HTTP request counting as one call regardless of the number of currencies returned.
url: https://www.fastforex.io/docs
quotas:
  - plan: All Plans
    period: monthly
    calls: 1000000
    description: Each HTTP request to any endpoint counts as a single API call toward the monthly quota, regardless of the number of currencies or data points returned in the response.

  - plan: Free Trial
    period: 7-day trial
    calls: 1000000
    description: Fully-featured trial with the same call limit as paid plans. Trial expires after 7 days.

limits:
  - endpoint: /fetch-one
    description: Single exchange rate pair lookup
    calls_per_request: 1

  - endpoint: /fetch-multi
    description: Multiple target rates from a single source currency
    calls_per_request: 1

  - endpoint: /fetch-all
    description: All exchange rates from a source currency
    calls_per_request: 1

  - endpoint: /fetch-many-to-one
    description: Many source currencies to a single target currency
    calls_per_request: 1

  - endpoint: /convert
    description: Currency amount conversion
    calls_per_request: 1

  - endpoint: /historical
    description: Historical exchange rates for a given date
    calls_per_request: 1

  - endpoint: /time-series
    description: Daily rate trends over a date interval
    calls_per_request: 1

  - endpoint: /crypto/prices
    description: Live crypto prices, up to 10 pairs per request
    calls_per_request: 1
    pairs_per_request: 10

  - endpoint: /fx/quotes
    description: Real-time FX trading pair bid/ask quotes, up to 10 pairs per request
    calls_per_request: 1
    pairs_per_request: 10

topup:
  description: Additional API calls can be purchased in blocks of 1 million
  block_size: 1000000
  price_usd: 18

authentication:
  method: API Key
  header: X-API-Key
  description: Pass your API key via the X-API-Key HTTP header on every request

notes:
  - Monthly quotas reset at the start of each billing period
  - No documented per-second or per-minute throttle; quota is monthly
  - WebSocket streaming is available as an add-on on the Premium plan