Datacircle

Interzoid pricing and alternatives: phone validation API, POST /enrich

Interzoid's sitellms.txtBest phone validation API in 2026
78% complete: 7 of the 9 key fields we checkSee the 9 fields
$0.00per 1,000 phonesThe cheapest of the 258 plans we rank by price is Twilio, top-up. Twilio's phone validation API costs nothing beyond the plan price.
Plan: Free API key one of Interzoid's 9 plans
Call: POST /enrich one of Interzoid's 2 calls for this API
API: Phone validation API one of Interzoid's 8 APIs

About this item

  • Live. The call checks the number when you make it.
  • 7 of the 9 key fields we check. Number, Validity, Type, Carrier, Place, Risk, Owner.
  • Nothing to pay.
  • One call. You send records[].lookup to POST /enrich. You set function to "phone-profile". You can also send lookup_field and language. The call returns whether each number you send is valid.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

Interzoid: phone validation API alternatives

The table starts with Interzoid's cheapest paid plan. Next come plans from other providers with the price per 1,000 phones closest to Interzoid's. Each plan in the table gives live data. We also show the Enrich.so plan. Its price is farther from the price of Interzoid's cheapest paid plan.

Interzoid, $30,000 yearly, 1 Million Credits (annual), POST /enrichListar, top-up from €10, Starter, POST /search/verify-phone-ownershipRealPhoneValidation, top-up from $25Loqate, £500 packData8, £500 packEnrich.so, $49 monthly
$ per 1,000 phones$62.50$56.265$60.00$62.675$66.675$490.00
Completeness78%67%44%78%56%56%
Billingyearlypay firstpay firstpay firstpay firstmonthly
Pay$30,000€10$25£500£500$49
Enough for480,000 results a year200 resultsabout 416 callsas many as you pay for10,000 calls100 results a month
Freshnesslivelivelivelivelivelive
Who can get itanyoneanyone using it for legitimate professional purposesbusinesses onlyanyonebusinesses, for their own internal business purposesanyone 18 or over, for an organization, someone with authority to bind it

Every phone validation API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-26.

  1. docs.interzoid.com/entries/api-license-keys
  2. interzoid.com/api
  3. interzoid.com/api-acceptable-use
  4. interzoid.com/api-pricing
  5. interzoid.com/api-terms-use
  6. interzoid.com/apis/batch-data-enrichment
  7. interzoid.com/services/api-pricing

Product details

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

  • Number
  • Formats, not in the answer
  • Validity
  • Type
  • Carrier
  • Porting and roaming, not in the answer
  • Place
  • Risk
  • Owner
Price
$ per 1,000 phones$0.00
Perresult
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: 56 other calls
Not found
$ per 1,000$0.00
In their words
Their pitchFor developers and AI agents: enrich up to 100 JSON records per call, or entire CSV and TSV files, with AI-powered company, contact, location, tax, and standardization data appended to every record.
Data
Freshnesslive
Keep datano limit
Use dataYou may use Service Outputs, including Enrichment Data, in your internal systems, applications, databases, workflows, reports, and business processes, provided that your use complies with these Terms, applicable law, and any applicable purchase, subscription, or usage terms. [...] You may not, and may not permit any third party to: Use the Services for unlawful, fraudulent, deceptive, abusive, harmful, or unauthorized purposes, Use the Services to build, train, benchmark, or improve a competing product or service without Interzoid's written permission, Resell, sublicense, lease, distribute, or provide the Services, Service Outputs, or Enrichment Data as a standalone data product, API, database, feed, or competing service, Scrape, harvest, copy, or bulk extract data from the Services except through authorized API calls or permitted product functionality, Use the Services in violation of privacy, data protection, intellectual property, export control, anti-spam, anti-discrimination, or other applicable laws, Use the Services, Service Outputs, or Enrichment Data to conduct unlawful surveillance, monitoring, tracking, stalking, harassment, intimidation, or doxxing of any individual, or to locate or identify an individual in order to threaten, endanger, harm, defraud, or extort that individual, Use the Services, Service Outputs, or Enrichment Data to re-identify individuals from data that has been anonymized, de-identified, aggregated, or pseudonymized, Use the Services, Service Outputs, or Enrichment Data to circumvent or defeat an individual's opt-out, do-not-contact, do-not-sell, suppression, consent withdrawal, or deletion request, or to reconstruct records that were required to be deleted or suppressed, Use the Services, Service Outputs, or Enrichment Data as a factor in establishing an individual's eligibility for credit, insurance, employment, housing, education, government benefits, or healthcare, or for any other purpose that would cause Interzoid to be considered a consumer reporting agency or Service Outputs to be considered a consumer report under the Fair Credit Reporting Act or any analogous law, Use the Services in any manner prohibited by the Acceptable Use Policy.
Plan
Pay$0
Rate limit
Batch100
Speed
Answerin the call
The call
You sendfunction "phone-profile", records[].lookup. Optional: lookup_field, language
MethodPOST
Path/enrich
About the plan
PlanFree API key
Who can get itanyone
The 14 fields the plan's answer can hold

normalized number, country, organization, line type, carrier, time zone, region, valid, risk assessment, status code, function, record count, error count, output fields

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