Words API · Rate Limits

Words Rate Limits

Words API rate limits are enforced by the RapidAPI gateway on a per-subscription basis. Every plan has a daily request quota (2,500 / 25,000 / 250,000 / 500,000 requests per day for Basic / Pro / Ultra / Mega). Quota counters reset daily and are scoped to the X-RapidAPI-Key, not per-IP. There is no separately published per-second cap; RapidAPI applies generic burst protection.

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

It captures 5 rate-limit definitions, measuring requests_per_day and varies.

The profile also includes 5 backoff/retry policies defined and response codes documented for quotaExceeded, throttled, and unauthorized.

Tagged areas include Rate Limiting, Dictionaries, Linguistics, and RapidAPI.

5 Limits Throttle: 429 Quota: 429
Rate LimitingDictionariesLinguisticsRapidAPI

Limits

Basic plan daily quota subscription/key
requests_per_day · day
2500
Free tier — resets each calendar day. Hard ceiling enforced by RapidAPI gateway.
Pro plan daily quota subscription/key
requests_per_day · day
25000
Paid Pro tier ($10/month).
Ultra plan daily quota subscription/key
requests_per_day · day
250000
Paid Ultra tier ($49/month).
Mega plan daily quota subscription/key
requests_per_day · day
500000
Paid Mega tier ($89/month).
Gateway burst protection key/IP
varies
see RapidAPI gateway burst policy
RapidAPI enforces undocumented burst protection on every key. Use exponential backoff on 429 responses.

Policies

Daily quota reset
Daily request counters reset at 00:00 UTC for every subscription. Consumed quota is visible in the RapidAPI dashboard.
24-hour caching allowance
Per Words API Terms of Service, consumers may cache responses for up to 24 hours, which is the cheapest way to stay under daily quota.
Exponential backoff on 429
When you receive 429 Too Many Requests, back off exponentially and retry after the gateway-suggested Retry-After interval.
Key rotation
Subscriptions are bound to the X-RapidAPI-Key value; rotate keys via the RapidAPI dashboard if exposed.
Plan upgrade
To raise daily limits, upgrade the RapidAPI subscription (Pro / Ultra / Mega) or purchase the full dataset for local hosting.

Sources

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.
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Call it yourself

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This rate limit 
curl "https://apis.io/api/v1/rate-limits/words-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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