ZIP code API pricing

Frequently asked questions

Can I use the Free plan commercially?

No. The Free plan is for testing and personal projects: 300 requests a month, 10 requests a minute and unlimited API keys, with no credit card required. Commercial use starts with the Small plan at $34.99 a month for 70,000 requests.

Is the free plan 100 API calls per day?

No. The Free plan includes 300 requests per month, not per day, at up to 10 requests a minute.

How much is zipcodestack per month?

The Free plan is $0. Paid plans cost $34.99 to $159.99 a month: Small is $34.99 for 70,000 requests, Medium is $59.99 for 250,000 requests, and Large is $159.99 for 2,500,000 requests. Custom volume pricing is available on request.

What discount do I get with yearly billing?

Yearly billing gives you about 2 months free: Small costs $349.99 a year, Medium $599.99 and Large $1,599.99, which works out to $29.17, $50.00 and $133.33 a month, compared with $419.88, $719.88 and $1,919.88 for 12 monthly payments.

How many countries does zipcodestack cover?

182 countries and about 9.6 million postal codes, on every plan, including the Free plan.

How does zipcodestack's price compare with Zipcodebase?

On the Large plan, zipcodestack costs about $0.064 per 1,000 requests and Zipcodebase about $0.126, so zipcodestack is roughly 49% cheaper per request. zipcodestack is also lower per request on all comparable paid plans (zipcodestack comparison, October 2026). Neither free plan is for commercial use. The Zipcodebase comparison has the details.

Is there a rate limit?

The Free plan allows 10 requests per minute. Paid plans have no rate limit.

What counts as a request?

Most calls count as one request: validate, autocomplete, reverse and match. A search counts one request per postal code found (up to 100 codes per call), radius and polygon searches count 10 requests, and city and state lookups count one request per 10 postal codes returned. Coverage, province and status calls are free, and only successful calls count.

How reliable is the API?

The API has had 99.99% uptime over the last 12 months. You can check the current status any time on the status page.

Where does the data come from?

From the published data of postal operators and government agencies, such as the ONS Postcode Directory in the UK, the US Census Bureau, Statistics Canada, Japan Post and La Poste, completed with GeoNames and OpenStreetMap where no official data is available. We rebuild the database regularly and check every build against the previous one.

What if I need more than 2,500,000 requests a month?

Contact us and we'll set up a custom plan with the volume, SLA and terms you need.

Can I cancel at any time?

Yes. You can cancel your plan from your dashboard in less than 30 seconds.