Datacircle

LeadSonar pricing: phone finder API

LeadSonar's siteThis page as plain textPhone finder API in 2026: the best of 30+ providers comparedLeadSonar: phone finder API alternatives

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9% complete: 1 of the 11 fields on our checklistSee the 11 fields
$0.316per 1,000 phonesWe haven't run LeadSonar through our phone finder API benchmark yet.We rank 774 plans for phone finder APIs by price. Half the plans cost $242.50 or less per 1,000 phones. This plan costs less per 1,000 phones than 96% of the 774 plans.QuickEnrich's $399 monthly plan costs the least per 1,000 phones. QuickEnrich's $399 monthly plan charges nothing per call. You get as many phones as QuickEnrich's rate limit allows. StableEnrich's pay-as-you-go plan costs the least for 10,000 phones a month: $1.00.MillionPhones, AI Ark and Skrapp are the best phone finder API providers in the Datacircle benchmark.
Type a number to see the cheapest LeadSonar plan for that many phones. The table below then sorts the other plans by what each costs.
Plan: Growth one of LeadSonar's 4 plans
Call: Docs behind sign-up LeadSonar's only call for this API
API: Phone finder API one of LeadSonar's 5 APIs

About this item

  • Live. LeadSonar finds the phone number when you call the API.
  • 1 of the 11 fields on our checklist. Number.
  • A monthly subscription. You pay $79 a month for 250,000 credits, enough for 250,000 calls.
  • One call. LeadSonar shows the call's docs once you sign up.
  • Anyone can get it. Keep data: with conditions. Use data: with conditions.

LeadSonar: phone finder API alternatives

LeadSonar alternatives: other phone finder API providers by price

We list other providers' plans closest to this plan in price per 1,000 phones. Each plan in the table gives live data.

This planLeadSonar, $79 monthlyFiber AI, free, 7-day free trial, POST /v1/contact-details/liteSyncGTM, freeBetterEnrich, freeLoneScale, free, POST /trigger/enrich/sync
$ per 1,000 phones$0.316$0.00$0.00$0.00$0.00
Completeness9%18%9%36%64%
Billingmonthlyfreefreefreefree
Pay$79$0$0$0$0
Enough for250,000 calls a month250 calls, once5 calls a monthabout 6 calls, oncenot published
Freshnesslivelivelivelivelive
Who can get itanyoneanyone with a payment method on file, to use only in the United Statesanyone aged 16 or over, for lawful business use, one free allowance per organisationanyone, for lawful business purposes onlyany natural or legal person, a natural person uses it for their professional activity, and LoneScale's moderation team validates the account

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

  1. leadsonar.io
  2. leadsonar.io/agent.json
  3. leadsonar.io/alternative/best-b2b-data-enrichment-tools.md
  4. leadsonar.io/alternative/fullenrich.md
  5. leadsonar.io/llms.txt
  6. leadsonar.io/pricing
  7. leadsonar.io/pricing.md
  8. leadsonar.io/terms.html

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Number
  • Line type, not in the answer
  • Verification, not in the answer
  • Do not call, not in the answer
  • Country, not in the answer
  • Name, not in the answer
  • Job, not in the answer
  • Links, not in the answer
  • Place, not in the answer
  • Company, not in the answer
  • Email, not in the answer
Price
$ per 1,000 phones$0.316
Percall
Billingmonthly
$ a month$79
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Employee email · Email validation
Not found
$ per 1,000$0.00
In their words
Their pitcha separate parallel phone cascade with carrier and line-type validation
Data
Freshnesslive
Keep datano period set while your account is open, on termination (8): "you must stop using data obtained through it except where you have an independent lawful basis to keep it"
Use data4: You must: have and maintain your own lawful basis for contacting the people whose data you obtain, and comply with the GDPR, the ePrivacy rules and any other law that applies to your outreach, honour objections and opt-out requests you receive, promptly and across your systems, identify yourself accurately in the messages you send, and provide a working means to opt out, keep the data secure and limit access to those who need it. You must not: use the data to contact people in a consumer capacity, or for any purpose outside business-to-business communication, resell, redistribute or publish the data, or use it to build or enrich a competing database, use the data for harassment, deception, discrimination, or any unlawful purpose, scrape, bulk-export or otherwise extract the database beyond the credits and exports your plan allows, circumvent credit limits, rate limits or access controls, including by opening multiple accounts to obtain repeated free trials, interfere with the operation, security or integrity of the service.
Plan
Pay$79
You get250,000 credits a month
Enough for250,000 calls a month
The call
You sendDocs behind sign-up
About the plan
PlanGrowth
Who can get itanyone
The only field the plan's answer can hold

phone

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