Fonoa · Rate Limits

Fonoa Rate Limits

Fonoa's API is protected by an API Management Gateway (Azure APIM) that enforces rate limiting to prevent DDoS attacks and excessive request volumes. Rapid requests from the same IP address or subscription key may result in temporary blockage. Specific numeric rate limits are not publicly documented; Fonoa recommends using webhooks instead of polling to reduce API call frequency. A 429 HTTP status code is returned when limits are exceeded.

Fonoa Rate Limits is the machine-readable rate-limit profile for Fonoa on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 3 rate-limit definitions, measuring requests and batch_validations.

Tagged areas include Tax, VAT, GST, E-Invoicing, and Tax Automation.

3 Limits
TaxVATGSTE-InvoicingTax AutomationTax ComplianceTax CalculationTax ID ValidationInvoice GenerationGlobal TaxIndirect TaxFintech

Limits

subscription
requests · per_second
Limit enforced per subscription key; exact value not publicly disclosed. Exceeding the limit triggers a 429 response.
ip
requests · per_second
Limit enforced per originating IP address to prevent DDoS attacks. Spamming from the same IP results in temporary blockage.
subscription
batch_validations · per_request
Batch TIN validation requests may contain multiple tax IDs in a single call. Maximum batch size not publicly documented.

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

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Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/fonoa-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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