Abstract API Phone Validation · Rate Limits

Abstractapi Phone Rate Limits

The Abstract API Phone Validation API applies two overlapping limits: a per-second throughput cap and a monthly request quota tied to your plan. Abstract documents a throughput limit of 3 requests/second across tiers (including the free tier). The monthly request allowance is set by the plan - 100 requests/month on the free tier, higher on paid tiers. Exceeding either limit returns an HTTP 429. Values here are drawn from Abstract API's public documentation and are not reconciled against a live account.

Abstractapi Phone Rate Limits is the machine-readable rate-limit profile for Abstract API Phone Validation on the APIs.io network, in the API Commons Rate Limits shape.

It captures 2 rate-limit definitions, measuring requests.

An exhausted limit returns HTTP 429.

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.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Phone Validation, Number Verification, Rate Limiting, and Quotas.

2 Limits Exhausted: HTTP 429
Method: generated, dated 2026-07-12.
Written by API Evangelist on 2026-07-12 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
Phone ValidationNumber VerificationRate LimitingQuotas

Limits

Requests Per Second account
requests
3 per second
Documented throughput cap shared across free and paid tiers.
Monthly Request Quota account
requests
per plan (100/month on free tier; higher on paid tiers)
Set by the selected plan's monthly request allowance.

Policies

Backoff Strategy
On a 429 response, back off with exponential delay and jitter and honor any Retry-After header before retrying.
Quota Reset
Monthly request allowances reset on the plan's monthly billing cycle.

Sources

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