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, in the API Commons Rate Limits shape.

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

Limit state is signalled in the Ocp-Apim-Subscription-Key and Retry-After response headers.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

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

3 Limits Ocp-Apim-Subscription-KeyRetry-After
Method: generated, dated 2026-06-12.
Written by API Evangelist on 2026-06-12 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
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.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.