Datacircle

Linq pricing: phone validation API, POST /v3/capability/check_imessage

Linq's siteThis page as plain textPhone validation API in 2026: the best of 60+ comparedLinq: phone validation API alternatives

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0% complete: none of the 9 fields on our checklistSee the 9 fields
$0.00per 1,000 phonesWe haven't run Linq through our phone validation API benchmark yet.This plan is free. We leave this plan out of our price ranking because the provider bans business use. We rank 1,342 plans for phone validation APIs by price. Half the plans cost $3.867 or less per 1,000 phones. See the best free phone validation API plan.GuGuData's CNY 124 (about $19) monthly plan is the cheapest paid plan per 1,000 phones. GuGuData's CNY 124 (about $19) monthly plan charges nothing per call. You get as many phones as GuGuData's rate limit allows. Keyronne's pay-as-you-go plan costs the least for 10,000 phones a month: $0.20.Trestle, Signal House and Data247 are the best phone validation API providers in the Datacircle benchmark.
Type a number to see the cheapest Linq plan for that many phones. The table below then sorts the other plans by what each costs.
Plan: Hobby one of Linq's 3 plans
Call: POST /v3/capability/check_imessage one of Linq's 2 calls
API: Phone validation API Linq's only API

About this item

  • Live. Linq checks the phone number you send when you call the API.
  • Returns none of the 9 fields on our checklist: Number, Formats, Validity, Type and 5 more.
  • Nothing to pay. Linq limits how many calls you get but gives no number.
  • One call. You send address to POST /v3/capability/check_imessage. You can also send from.
  • Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

Linq: phone validation API alternatives

Linq alternatives: other phone validation 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 planLinq, free, Hobby, POST /v3/capability/check_imessageSignal House, freeFoxentry, free trial, POST /phone/validate, Validate phone number (extended)HLR Lookups, free, 100 free lookups, POST /hlr-lookupsseven.io, free test credit, GET /api/lookup/hlr
$ per 1,000 phones$0.00$0.00$0.00$0.00$0.00
Completeness0%44%56%56%78%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough fornot published5,000 calls, oncenot published100 results, oncenot published
Freshnesslivelivelivelivelive
Who can get itanyone who signs up through the CLI, for hobbyist and personal projects, legally able to enter into the Termsanyone who creates an accountanyone who signs up and creates an API projectnew accountsnew accounts of traders: the customer assures that he is a trader and that the short messages are sent as part of his business

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

  1. cdn.linqapp.com/openapi/linq-api-v3.yaml
  2. docs.linqapp.com/channel/imessage/guides/chats/capability-checks/
  3. docs.linqapp.com/channel/imessage/guides/platform/rate-limits
  4. linqapp.com/cli
  5. linqapp.com/policies/terms-of-service-and-sale
  6. linqapp.com/s/pricing

Product details

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

  • Number, not in the answer
  • Formats, not in the answer
  • Validity, not in the answer
  • Type, not in the answer
  • Carrier, not in the answer
  • Porting and roaming, not in the answer
  • Place, not in the answer
  • Risk, not in the answer
  • Owner, not in the answer
Price
$ per 1,000 phones$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays for75 other Linq calls · from the same budget: Check RCS capability
Not found
$ per 1,000$0.00
In their words
Their pitchCheck whether a recipient address supports iMessage or RCS before sending a message.
Data
Freshnesslive
What it checksmessaging apps
Keep datano limit
Use dataLinq grants Customer a limited, revocable, non-exclusive, non-transferable, non-sublicensable right during the Term to access and use the Service and Documentation solely for Customer’s internal business purposes to develop, test, and support applications that interoperate with the Service. [...] Customer will not (and will not permit any third-party to): copy, modify, or create derivative works of the Service (except as expressly permitted in Documentation), reverse engineer, decompile, or attempt to discover source code or underlying algorithms (except to the extent prohibited by law), access or use the Service to build or benchmark a competing product, remove any proprietary notices from the Service or Documentation, use the Service in any manner or for any purpose that infringes, misappropriates, or otherwise violates any intellectual property right or other right (including privacy right) of any person, or that violates Applicable Law, interfere with or disrupt the Service, including by circumventing safeguards, monitoring, filters, or rate limits, or use the Service outside the scope of these Terms, the AUP, or Documentation.
Plan
Pay$0
Rate limit
Per second0.1
Batch1
Speed
Answerin the call
The call
You sendaddress. Optional: from
MethodPOST
Path/v3/capability/check_imessage
About the plan
PlanHobby
Who can get itanyone who signs up through the CLI, for hobbyist and personal projects, legally able to enter into the Terms
The 4 fields the plan's answer can hold

address, available on iMessage, reason unavailable, selected service

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