Smarty Cleans Addresses.1Lookup Validates Intelligently.
Smarty is built for address validation. 1Lookup delivers superior user validation with simple pay-as-you-go pricing. As the leading Smarty alternative for validation, we specialize in phone, email, and IP validation with transparent pricing that won't break your budget.
Good tool, no fluff
Been using 1Lookup for a couple months now. We verify leads before pushing them into Pipedrive. Honestly it just works. Not fancy, not buggy, and the support actually answers when you write them. Can't really ask for more.
Brian LetzterUnited States · October 2025The most practical data tool I've used
I've seen hundreds of validation APIs come and go. 1Lookup stands out because they don't oversell. Their data is solid, support is honest, and they're transparent about limitations, which is rare in this industry. I've replaced three tools with this one. They listen, they iterate, and they keep improving. You can feel there are actual engineers behind it, not just salespeople.
Bùi Thị Thanh NgọcVietnam · October 2025Solid phone validation API
We use 1Lookup inside our telemarketing app to verify numbers before they go to the dialer. Setup was simple and the results have been consistent. It's not overloaded with features, just fast, accurate, and reliable. Docs could be a bit deeper, but honestly, it works out of the box.
Dirk van MeerUnited States · December 2025Saved us from hundreds of spam signups
We run a SaaS product with free trials and were getting flooded with bots and fake users. After integrating 1Lookup, the difference was night and day. It quietly filters out junk signups without blocking legitimate customers. The support team even helped us fine-tune our risk thresholds on a quick Zoom call. Being honest, we couldn't ask for more.
Ido ShachamUnited States · January 2026A good addition to our workflow
1Lookup has been a good addition to our workflow over the last few months. We use it to verify IPs, emails, and phone numbers, which has noticeably cut down the time we spend chasing dead-end applications. It's reasonably priced and their support team is actually helpful. It's a very practical tool for what we need.
Meredith Jr. RedmondIsrael · March 2026
Smarty (SmartyStreets) vs 1Lookup FAQ
Common questions about Smarty (SmartyStreets) and switching to 1Lookup
What is Smarty (SmartyStreets)?
Smarty, formerly known as SmartyStreets, is a US-based address verification and validation platform. Its APIs standardize, verify, and autocomplete postal addresses and offer related tools such as US rooftop geocoding, along with verification and geocoding for international addresses. It is widely used by e-commerce, logistics, and data teams that need clean, deliverable mailing addresses.
How much does Smarty (SmartyStreets) cost?
As of publication, Smarty uses tiered, volume-based pricing that scales with your monthly lookup volume and the specific product you need, such as US address verification, international verification, autocomplete, or geocoding. Some individual products start at low monthly rates, while high-volume and enterprise usage is typically quoted based on lookup volume. For exact current numbers, check Smarty's pricing page, since published tiers change over time.
What is the best Smarty (SmartyStreets) alternative?
The best alternative depends on what you actually need to verify. If your goal is cleaning and validating postal addresses, Smarty itself is strong and other address-focused tools may fit. If you instead need to verify the people behind a signup, their phone numbers, emails, and IP addresses, 1Lookup is a natural alternative that combines all three checks in a single API with one universal credit system.
How is 1Lookup different from Smarty (SmartyStreets)?
Smarty specializes in validating physical mailing addresses, while 1Lookup specializes in verifying identity signals, phone numbers, emails, and IP addresses, through one unified API. 1Lookup draws on data updated daily from FCC and carrier sources and adds carrier/HLR lookup, reverse lookup, and fraud/IP intelligence, so the two tools often complement rather than replace each other. If your priority is catching fake or risky signups rather than fixing postal addresses, 1Lookup is built for that use case.
Can I try 1Lookup for free?
Yes. 1Lookup offers a 7-day free trial so you can validate phone numbers, emails, and IPs before committing to a plan. Every check runs through one API and draws from a single universal credit system, so you can test multiple validation types without juggling separate products.
The Smart Smarty Alternative
Need user validation, not just addresses? Switch to 1Lookup for phone, email, and IP validation on one pay-as-you-go balance.
1Lookup vs Smarty: the same criteria, side by side
Both products measured on identical criteria, with Smarty’s numbers taken from its own published pricing.
1lookup1lookup.ioMulti-channel validation
smarty.comMulti-channel validation- Smarty · Starts at
- $17/mo for 1,000 US address verification lookups ($0.017/lookup, $17.00 per 1,000); lowest monthly price on the site is $16/mo for 500 international autocomplete lookups
- 1Lookup: $99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise)
- Smarty · Cheapest published per 1,000
- $2.49 at their largest published tier
- 1Lookup: $2.00 per 1,000 at 1,000,000 lookups/mo
- Smarty · Free trial
- 42-day one-time free trial per product, no credit card required: 1,000 lookups for US products (address verification, rooftop geocoding, autocomplete, enrichment, property data, reverse geocoding), 100 lookups for international products; the trial is the de facto free tier, there is no recurring free allowance
- 1Lookup: 7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise (card required, nothing charged up front)
- Smarty · Do credits expire?
- Plans end when lookups or time run out, whichever comes first, so unused lookups do not roll over; annual plans expire 365 days from purchase; auto-renew is on by default (card is charged and the plan renews at the same level on depletion, with an email alert at 90% usage); with renewal off a depleted plan returns HTTP 402 instead of overage charges
- 1Lookup: Unused monthly credits roll over for 3 months; separately purchased credits last 1 year
| Criteria |  1Lookup | |
|---|---|---|
| Contact-data coverage | EmailPhoneIP | EmailPhoneIP |
| Pricing model | Monthly plans with universal credits; core phone, email and IP lookups cost 1 credit, enrichment and intelligence products cost more | Per-product plan subscriptions (monthly or yearly terms) sized by lookup quota: US Address Verification Core from $17/mo (1,000 lookups) to $485/mo (170,000) and up to $4,980/yr (2M lookups), International Address Verification from $40/mo (1,000), US Rooftop Geocoding from $45/mo (1,000), US Address Autocomplete from $21/mo (5,000), plus quote-only Custom/unlimited plans. |
| Starting price | $99/mo for 20,000 credits ($4.95 per 1,000, down to $2.00 on Enterprise) | $17/mo for 1,000 US address verification lookups ($0.017/lookup, $17.00 per 1,000); lowest monthly price on the site is $16/mo for 500 international autocomplete lookups |
| Free option | Free single lookups via the online tools at 1lookup.io/tools, no account required | None published |
| Free trial | 7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise (card required, nothing charged up front) | 42-day one-time free trial per product, no credit card required: 1,000 lookups for US products (address verification, rooftop geocoding, autocomplete, enrichment, property data, reverse geocoding), 100 lookups for international products; the trial is the de facto free tier, there is no recurring free allowance |
| Do credits expire? | Unused monthly credits roll over for 3 months; separately purchased credits last 1 year | Plans end when lookups or time run out, whichever comes first, so unused lookups do not roll over; annual plans expire 365 days from purchase; auto-renew is on by default (card is charged and the plan renews at the same level on depletion, with an email alert at 90% usage); with renewal off a depleted plan returns HTTP 402 instead of overage charges |
Cost per 1,000: Smarty and 1Lookup
Published rates only, drawn on one shared scale that starts at $0.
- 1Lookup rate card
- Smarty published tiers
Smarty, per published tier
5,000 US lookups/mo
$10.00170,000 US lookups/mo
$2.852,000,000 US lookups/yr
$2.492,500 international lookups/mo
$38.00
1Lookup, reference band (a range, not a bar from $0)
All 4 plans, 20,000 lookups/mo to 1,000,000 lookups/mo
Cost per 1,000
| Product | Volume tier | Price | Cost per 1,000 |
|---|---|---|---|
| Smarty | 5,000 US lookups/mo | $50/mo (US Address Verification, Core) | $10.00 |
| Smarty | 170,000 US lookups/mo | $485/mo (US Address Verification, Core) | $2.85 |
| Smarty | 2,000,000 US lookups/yr | $4,980/yr (US Address Verification, Core yearly) | $2.49 |
| Smarty | 2,500 international lookups/mo | $95/mo (International Address Verification) | $38.00 |
| 1Lookup | 20,000 lookups/mo | $99/mo (Starter) | $4.95 |
| 1Lookup | 85,000 lookups/mo | $299/mo (Growth) | $3.52 |
| 1Lookup | 250,000 lookups/mo | $799/mo (Professional) | $3.20 |
| 1Lookup | 1,000,000 lookups/mo | $1,999/mo (Enterprise) | $2.00 |
What Smarty costs at volume
| Volume | Smarty price | Per 1,000 |
|---|---|---|
| 5,000 US lookups/mo | $50/mo (US Address Verification, Core) | $10.00 |
| 170,000 US lookups/mo | $485/mo (US Address Verification, Core) | $2.85 |
| 2,000,000 US lookups/yr | $4,980/yr (US Address Verification, Core yearly) | $2.49 |
| 2,500 international lookups/mo | $95/mo (International Address Verification) | $38.00 |
For scale: 1Lookup’s plans work out to $4.95 per 1,000 lookups on Starter down to $2.00 per 1,000 on Enterprise, with every lookup type (phone, email, IP, spam) drawing from the same credits. Pricing models differ (subscription vs pay-as-you-go), so compare at your real monthly volume.
The same month, priced both ways
Pick one of Smarty’s own published volumes. Their figure is their published price at that tier; ours is the cheapest plan on our rate card that covers it. Nothing here is interpolated.
1Lookup
$99/mo
The Starter plan, 20,000 credits a month at $4.95 per 1,000. Using 5,000 of them is 25% of the plan, so $19.80 per 1,000 effective.
Smarty
$50
Their published price for “5,000 US lookups/mo”, at $10 per 1,000.
At 5,000 a month, Smarty is $49 cheaper. Our smallest plan that covers this volume includes 20,000 credits, so the gap closes as you use more of it.
Smarty rates as published on smarty.com, verified July 2026. Pricing models differ (a monthly plan is not a credit pack), so a like-for-like month depends on your real mix of lookups. Check their pricing page
Smarty’s pricing page, as we read it
Every Smarty figure above is taken from this page. It is reproduced here so you can check the numbers against the source instead of trusting our transcription of them, and the caption links straight to it. Prices change; the capture date says how fresh this is.
Before you sign: Smarty and 1Lookup on the operational terms
The terms that decide what a year actually costs, rather than what the first month does. A blank means we could not verify it on either product’s published pages, not that the answer is nothing.
| Term | 1Lookup | Smarty |
|---|---|---|
| Minimum commitment | None. Monthly plans with no contract and no minimum volume; cancel any time | No minimum on month-to-month plans, which the pricing FAQ says carry no commitment and no cancellation fee. The Terms of Service state "the Subscription Term will end no later than one (1) year from the activation date, even if any portion of the allotted Lookups remain unused." Cancelling an annual plan requires contacting a sales rep. |
| Going over your quota | — | No overage charges. Once lookups are exhausted, API requests return HTTP 402 "payment required". With auto-renewal enabled, Smarty instead charges the card or invoices for a new block of lookups and restarts the subscription from that date. |
| API access | Included on every plan and during the free trial; there is no tier that unlocks it | The US Address Verification overview lists "API and batch processing (including no-code options)" as a product capability, but the page does not state API access per plan tier. The free trial is 42 days / 1,000 lookups with "No credit card required". |
| Rate limit | 1,000 requests per minute on standard accounts, with higher limits available on request | The Professional plan lists "Up to 25,000 address lookups / second"; the Custom plan advertises a negotiated per-second rate. The Terms of Service add that Smarty "may monitor Subscriber's use of the Subscription Services and implement rate limits, access controls, or other technical measures" without publishing thresholds. |
| Uptime SLA | — | Per-API uptime commitments for subscribers with a valid subscription license per a Sales Order: US Street Address API 99.98%, US Extract API 99.99%, US Reverse Geocoding API 99.99%, US ZIP Code API 99.90%, International Street Address API 99.90%, US Address Autocomplete API 99.00%. |
| Compliance | — | USPS CASS Certified (covering 5-digit, ZIP+4/delivery point, carrier route, DPV, DSF2, LACSLink, SuiteLink, eLOT and RDI), AICPA SOC 2, and HIPAA compliant. The certifications page states HIPAA is available through their Enterprise data program. GDPR, CCPA and ISO are not named on that page. |
| Support | Starter: Email Support; Growth: Priority Email & Chat Support; Professional: Chat + Live Meeting; Enterprise: Dedicated CSM | Phone, chat and email at no extra cost. The pricing FAQ says support is reachable 8 AM to 5 PM Mountain Time; the SLA says standard support runs Monday through Friday, 7:00 a.m. to 5:00 p.m. Mountain Time excluding US holidays, with 24/7 support available through upgraded tiers. SLA initial-response targets: Critical 2 hours, High 4 hours, Medium 1 day, Low 2 days. |
Smarty fine print worth reading twice
Published terms that change what Smarty costs or what you can do with it. Each one links to the Smarty page it was read on, because a claim about somebody else’s contract should be checkable in one click.
An annual subscription expires one year from activation and any unused lookups are forfeited, per the Terms of Service: "the Subscription Term will end no later than one (1) year from the activation date, even if any portion of the allotted Lookups remain unused."
Read it on Smarty’s siteWith auto-renewal enabled, Smarty automatically charges the card on file for a new block of lookups when the plan depletes; the only warning is an email sent at 90% usage.
Read it on Smarty’s siteInvoicing instead of card-on-file payment is only available for annual plans exceeding $500.
Read it on Smarty’s siteUS Rooftop Geocoding data may only be stored while the geocoding subscription is active, unlike verified address data which can be retained indefinitely.
Read it on Smarty’s siteSmarty reserves the right to increase subscription fees for any renewal term with at least thirty days' notice before the renewal date.
Read it on Smarty’s siteHIPAA compliance is offered through the Enterprise data program rather than the standard published plans.
Read it on Smarty’s siteEnhanced data privacy, enhanced data compliance and custom legal terms are listed only under the quote-only Custom plan.
Read it on Smarty’s site
What you actually work in
Smarty is a screenshots of the Bulk Address Validation web app: the Upload File screen, upload-success confirmation, a matching and validation configuration panel, an output summary showing "472 of 500 records matched" with an exceptions chart, an address statistics chart, and a per-record results table product you log into. 1Lookup is an API and a dashboard you mostly do not log into: you call it from the system that already has the record. Which of those you want is usually the whole decision, so here is theirs.
Smarty interface
Smarty’s API reference
Their public developer documentation, so you can judge the integration before you start one.
1Lookup
Smarty
Where Smarty wins
- Advertises deep US address data: 210M addresses including about 20M non-USPS, up to 55 metadata points per verified address, ZIP9 geocodes, and a SmartyKey address ID (vendor claims, not independently verified)
- High stated rate limits on standard plans: up to 25,000 lookups/second for US address verification and rooftop geocoding, 3,500/second international (plan rate caps per the vendor, not measured throughput)
- No overage billing: a depleted plan either auto-renews at the same price or, with renewal off, returns a 402 error instead of surprise charges, with a 90% usage email alert
- No-card trial: 42 days and 1,000 free lookups per US product before buying
- Broad location product line under one account: US and international verification, rooftop and reverse geocoding, US and international autocomplete, US property data, and address enrichment APIs; site claims coverage of 240 countries and territories for international
Where 1Lookup wins
- Phone, email, and IP validation in one API with one universal credit balance
- Phone data refreshed daily from FCC and carrier sources
- Carrier/HLR lookup, line type, spam score, and reverse lookup included alongside validation
- Self-serve plans with no contracts and 3-month credit rollover
Smarty pricing and product facts verified against smarty.com as of July 2026. Prices change; always confirm on the vendor’s site. 1Lookup numbers come from the live rate card.
Who this is for
A quick, honest read on which tool fits your use case.
Choose 1Lookup if: your priority is validating phone numbers, emails, and IP addresses rather than standardizing postal addresses, all in one API.
Consider Smarty instead if: you specifically need US or international postal address verification, autocomplete, and geocoding for clean mailing addresses.