Datacircle

Openapi.com pricing and alternatives: phone validation API, POST /mobile-start/{mobile-phone-number}

Openapi.com's sitellms.txtBest phone validation API in 2026
78% complete: 7 of the 9 key fields we checkSee the 9 fields
$43.887per 1,000 phones€39.00 per 1,000 is $43.887, at the European Central Bank's $1.1253 for €1.Half of the 237 plans we rank by price cost $5.401 per 1,000 or less. This plan costs less than 11% of the 237 plans.The cheapest plan we rank by price is Twilio, top-up, at $0.00 per 1,000.
Plan: Single request one of Openapi.com's 16 plans
Call: POST /mobile-start/{mobile-phone-number} one of Openapi.com's 3 calls
API: Phone validation API one of Openapi.com's 2 APIs

About this item

  • Live. The call checks the number when you make it.
  • 7 of the 9 key fields we check. Number, Formats, Validity, Type, Carrier, Porting and roaming, Place.
  • A balance you top up. You pay any amount. You spend all of it on calls.
  • One call. You send mobile-phone-number to POST /mobile-start/{mobile-phone-number}. You can also send callback. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done.
  • Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

Openapi.com: phone validation API alternatives

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

This planOpenapi.com, top-up, Single request, POST /mobile-start/{mobile-phone-number}Byteplant, $489.90 monthlyLoqate, $100 packData8, £1,000 packListar, top-up from €10, Starter, POST /search/verify-phone-ownership
$ per 1,000$43.887$48.99$50.00$53.34$56.265
Completeness78%56%78%56%67%
Billingpay firstmonthlypay firstpay firstpay first
Payany amount$489.90$100£1,000€10
Enough foras many as you pay for10,000 calls a monthas many as you pay for25,000 calls200 results
Freshnesslivelivelivelivelive
Who can get itanyone acting in the course of their business, entrepreneurial or professional activitybusinesses and professionals with a business emailanyonebusinesses, for their own internal business purposesanyone using it for legitimate professional purposes

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 2026-10-25.

  1. console.openapi.com/apis/trust/documentation
  2. console.openapi.com/apis/trust/pricing
  3. legal.openapi.com/terms-and-conditions/term-and-condition-general-en.pdf
  4. openapi.com
  5. openapi.com/faq
  6. openapi.com/pricing

Product details

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

  • Number
  • Formats
  • Validity
  • Type
  • Carrier
  • Porting and roaming
  • Place
  • Risk, not in the answer
  • Owner, not in the answer
Price
$ per 1,000$43.887
Billingpay first
Aggregators
Aggregatorsnone
Charges
Percall
Also pays forfrom the same budget: API Services
In their words
Their pitchThe Mobile Number Verification service allows you to verify the validity of a mobile phone number in seconds and on a global scale.
Data
Freshnesslive
Keep datano limit
Use dataThe data and information provided by Openapi are for the exclusive use of the Customer, who is prohibited from copying, reproducing, assigning to third parties on any grounds and/or using them for purposes other than those expressly established in the Agreement, unless expressly authorised by Openapi and subject to the Customer undertaking to comply with the instructions provided. In particular, to obtain such authorisation, the Customer must provide Openapi with assurances: (i) that it has informed its customers that the data they provide will be transmitted to third parties for the provision of the requested service, (ii) that it has adopted an adequate privacy policy and processes its customers’ data according to security and confidentiality standards no lower than those offered by Openapi’s Privacy Policy, (iii) that it adopts all measures required by applicable law or otherwise suitable to preserve the confidentiality and security of the data provided by its customers. [...] The Customer is also prohibited from: [...] (v) using the APIs and/or the Services for purposes or in a manner that causes damage to Openapi, the Suppliers or third parties and/or violates any provision of law [...]
Plan
Expires12 months after the last top-up
Rate limit
Per second166.67
Batch1
Speed
Answerin the call or by polling
The call
You sendmobile-phone-number. Optional: callback
MethodPOST
Path/mobile-start/{mobile-phone-number}
About the plan
PlanSingle request
Who can get itanyone acting in the course of their business, entrepreneurial or professional activity
The 20 fields the plan's answer can hold

request ID, requested number, formatted number, possible number, valid number, region code, valid for region, number type, network, original network, roaming, ported, country, country prefix, details, request state, created at, updated at, message, success

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