1Lookup Aggregates Vendors. Veriastra Builds Engines.
Both cover phone, email and IP in one API. The difference is what's behind the endpoint: Veriastra runs its own engines on named official data instead of reselling third-party lookups.
Cheaper at every single tier
Measured on their pricing page, 3 Aug 2026: their Starter is $4.95 per 1,000 core lookups, ours is $3.16. Their Growth $3.52, ours $2.49. Their Professional $3.20, ours $2.16.
Their Enterprise $2.00, ours $1.50. Same credit system, same 1-credit core lookups — lower price at every level.
Rollover without the expiry
Their unused credits expire after 3 months (their pricing FAQ). Ours roll over for as long as you subscribe, so a quiet month is not a forfeited one.
The free plan is 200 credits a month with no card; paid unused credits stay while you subscribe.
Verifiable results
Every response carries a signed receipt you can verify against our public endpoint — the one thing on neither their price list nor anyone else's. Screenshots can lie; signatures can't.
A reference you can generate a client from
Our OpenAPI 3.1 document describes all 30 endpoints with full request and response schemas, examples and the credit cost on each operation — and the Postman collection is generated from it, so the two cannot drift.
Their API reference is a single page listing endpoint names with one curl example; it carries no response schema for any endpoint, and there is no machine-readable spec at any address.
Retries that do not charge twice
Send an Idempotency-Key and a repeat of the same request replays the stored answer for 24 hours without taking a second credit — the thing that matters when a queue redelivers.
Their documentation has no idempotency and no webhooks; ours signs every webhook delivery with an HMAC and a replay window.
Signals nobody else returns
On email we report the domain's actual sending posture — SPF, DMARC and DKIM — which their field list does not include.
On IP we report BGP routing and RPKI route authorisation, which is in neither their answer nor IPQualityScore's nor MaxMind's: a cryptographic check on whether the announcement carrying that address is authorised, rather than one more reputation opinion.
The question a caller actually has
Dial Check answers "should this number be called" in one request — line type, the carrier holding the block, complaint history and your own do-not-call list, as one verdict with its reasons.
It states the line that costs callers the most: a business landline is exempt from the national registry, a wireless number never is.
Upload a list and Clean a List runs the same check across all of it.
Where 1Lookup is the better buy
Every product has a job it is built for. These are the jobs where 1Lookup is the answer and we are not, said plainly so you can tell in two minutes whether the rest of this page applies to you.
If you want resold people-data on the same bill
They publish about 35 endpoints to our 20. Around nine of that difference is resold people-data — skip trace, mobile finder, property lookup, social profile checks, job-change monitoring — which we have chosen not to sell, so if your workflow depends on those, buy theirs.
Three are genuine gaps on our side: backlink metrics, keyword metrics and a business-verification score.
If you need a named page for your exact CRM today
Their integration library covers 140-odd platforms against our eight. Ours are eight we have actually configured and can support; a longer list is a longer list.
But if the tool you use is on theirs and not on ours, that is a real reason to pick them this week.
If years of published reviews are what you buy on
They have been trading since 2022 with customer reviews you can read. We are newer, and reviews are earned rather than written.
So in the meantime we ship the thing a review cannot fake. Every response carries a signed receipt, verifiable against our public endpoint long after the fact.