Validate Any Phone, Email, or Domain. Enrich Any Contact
Stop paying for bad data. 44 data products on one API key and one shared credit balance: validation, enrichment, B2B prospecting, SEO and transcription. Validation answers in under 0.3 seconds.
One API key and one credit balance cover six kinds of data.
44 data products. Most teams start with phone and email checks; everything below is one more endpoint on the same key, not one more vendor, contract or invoice. Prices are in credits, with the Starter plan's price per lookup in cents; bigger plans pay less.
Any audio or video file as text, with timestamps and speaker labels
6 credits per minute
Add 1Lookup to Claude or Cursor
MCP server
https://app.1lookup.io/api/mcp
Paste one URL into Claude, Cursor or another MCP client and sign in. No API key goes into a config file, and tool calls use the same credits as the API.
An AI agent needs one URL to start running checks.
Add one URL to Claude, Cursor or another MCP client and sign in. Your agent checks phones, emails and IPs, or runs a whole list, and spends the same credits as the API.
The same $99 buys more checks at 1Lookup than at Twilio or ZeroBounce.
Each specialist below sells one kind of data. At 1Lookup the same $99 is one balance for all 44 data products. Their figures come from their own pricing pages.
1Lookup Starter · $99 a month
20,000 credits
For every product on this page, in any mix: 20,000 phone, email or IP checks, or 2,000 social profiles, or 3,333 keyword reports, or some of each.
Twilio Lookup12,375 line-type lookups · $0.008 each, pay as you goPhones only
ZeroBounce ONE10,000 email checks · $99 a month planEmails only
Social Blade Business API100 profile lookups · $0.50 each, sold in packs of 100 for $50Social profiles only
Vendor prices from their own pricing pages, checked 29 Sep 2026 (Social Blade in August 2026). The Twilio figure is $99 divided by its published unit price. Side-by-side comparisons
By industry
Lead lists, signups, orders and call lists each call for a different pair of lookups.
The same key covers very different jobs. Each card pairs the two products that fit an industry's work, and links the page that goes deeper.
See how businesses like yours are preventing fraud, improving data quality, and increasing revenue with 1Lookup
"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."
BL
Brian Letzter
Verified review via Trustpilot, October 2025
"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."
DV
Dirk van Meer
Verified review via Trustpilot, December 2025
"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."
The trial is $0 today, and these answers cover prices, data and setup.
More questions are answered on the full FAQ page.
How does the free trial work?
Pick a plan and start your 7-day free trial. You pay $0 today, and the plan begins when the 7 days are up. The Starter trial includes 1,010 credits, about 1,000 phone, email or IP checks; bigger plans include about 5,700 to 10,000 credits. Trial credits work on every product.
What is 1Lookup and how does it work?
1Lookup is a data intelligence platform with 44 products behind one API: phone, email, and IP validation, contact and company enrichment, B2B prospecting, SEO and web intelligence, and audio transcription. We aggregate data from multiple trusted sources to deliver real-time insights that help businesses verify identities, prevent fraud, and improve data quality.
What does a lookup cost?
Every product draws from one credit balance. Phone, email and IP checks are 1 credit, HLR 5, keyword metrics 6, skip trace and social profiles 10, company profiles 25, TikTok audience reports 40 and B2B contact appends 75. 1,000 credits cost $4.95 on Starter and $2.00 on Enterprise.
Do I pay for lookups that find nothing?
Not on many of them. Company, social and B2B contact lookups, among others, are only charged when they find a match. The API docs list every product's price.
Which countries do you cover?
Phone validation accepts US and Canadian numbers, and its Do-Not-Call check covers US numbers. For international mobile numbers, use HLR lookup, number portability and number type.
Can I upload a list instead of using the API?
Yes. Upload a CSV of up to 2 million rows in the dashboard, pick the lookup, and download every row with its answer. Duplicates in a file are charged once.
Can my AI agent run lookups?
Yes, for phone, email and IP checks and whole lists of them. Add https://app.1lookup.io/api/mcp to Claude, Cursor or another MCP client and sign in. Tool calls use the same credits as the API, with no extra fee.
What happens to the data I send?
Every request travels over TLS 1.3, and stored data is encrypted with AES-256. Card payments go through Stripe, a PCI DSS Level 1 certified provider, so we never hold full card numbers. The security page says which of these are certified and which are self-assessed.
Do unused credits roll over?
Yes, for 3 months. Paying yearly also gets you 2 months free.
Do you offer volume pricing?
Yes. Enterprise is $1,999 a month for 1,000,000 credits, $2.00 per 1,000. Custom plans with volume discounts start at $2,000 a month; talk to sales for a quote.
