# LayerCall, free, GET /v1/lookup/phone: Phone validation API

> Checks a number against its country's actual numbering plan rather than merely counting digits, and identifies the line type.

LayerCall's Free plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. LayerCall's docs list 5: Number, Formats, Validity, Type, Place.
We ran LayerCall in [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt). We didn't score LayerCall's call.
This plan is free. We rank 1,339 plans for phone validation APIs by price. Half the plans cost $2.867 or less per 1,000 phones. [297 phone validation API plans on our price sheet are free.](https://datacircle.dev/best-phone-validation-api.txt) [Trestle](https://datacircle.dev/validate-phone-apis/trestle/free/llms.txt) has a free plan with 25 calls in total. Trestle is the best phone validation API in our benchmark.
[Linq's $260 monthly plan](https://datacircle.dev/validate-phone-apis/linq/260-monthly-pro-post-v3-capability-check-imessage/llms.txt) is the cheapest paid plan per 1,000 phones. Linq's phone validation API costs nothing beyond the plan price. [Keyronne's pay-as-you-go plan](https://datacircle.dev/validate-phone-apis/keyronne/pay-as-you-go/llms.txt) costs the least for 10,000 phones a month: $0.20.
[Trestle](https://datacircle.dev/validate-phone-apis/trestle/top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api/llms.txt), [Signal House](https://datacircle.dev/validate-phone-apis/signal-house/top-up-from-10/llms.txt) and [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/layercall/free-get-v1-lookup-phone
- [Phone validation API in 2026: the best of 60+ compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.layercall.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `GET https://www.layercall.com/v1/lookup/phone`
- API key: with the plan, on https://www.layercall.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://www.layercall.com/docs/endpoints?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: LayerCall (https://www.layercall.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 56%
- Number: ✓
- Formats: ✓
- Validity: ✓
- Type: ✓
- Place: ✓

## Price

- $ per 1,000 phones: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Report what actually happened · Verify an AI agent's signature · Decide what an AI agent may do · Set your AI agent policy · Custom allow / block rules · Report fraud · Migration import · Remove one custom rule · from the same budget: Unified score · IP intelligence · Email validation · Domain intelligence · Device identity scoring · Batch

## Overage

- Units cap: hard

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Checks a number against its country's actual numbering plan rather than merely counting digits, and identifies the line type.

## Data

- Countries: Worldwide
- What it checks: numbering plan
- Keep data: no limit
- Use data: You agree not to: use the Service for any unlawful purpose or to violate anyone's rights, use results to unlawfully discriminate against individuals, or as the sole automated basis for decisions that produce legal or similarly significant effects on a person without human review, where such review is required by law, attempt to reverse-engineer, resell, or redistribute the raw data or feeds underlying the Service, except the scores and signals returned to you for your own use, circumvent rate limits, quotas, or security measures, or probe the Service for vulnerabilities without permission, submit data you do not have the legal right to process.

## Plan

- Pay: $0
- You get: 1,000 credits a month
- Enough for: 1,000 calls a month

## Rate limit

- Per second: 10
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: phone. Optional: country, strictness
- Method: GET
- Path: /v1/lookup/phone

## About the plan

- Plan: Free
- Who can get it: anyone 16 or older

## The 23 fields the plan's answer can hold

phone, risk score, verdict, parse status, syntax valid, possible, VoIP, premium rate, toll free, assigned area code, fictional, E.164 format, country, national format, international format, line type, first seen, times seen, abuse reports, cached, request ID, processing time, billable lookups

## LayerCall's plans (5)

- [LayerCall, free, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/free-get-v1-lookup-phone/llms.txt): $0.00 per 1,000, 56% complete
- [LayerCall, $49 monthly, Starter, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/49-monthly-starter-get-v1-lookup-phone/llms.txt): $2.45 per 1,000, 56% complete
- [LayerCall, $199 monthly, Growth, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/199-monthly-growth-get-v1-lookup-phone/llms.txt): $1.99 per 1,000, 56% complete
- [LayerCall, $749 monthly, Scale, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/749-monthly-scale-get-v1-lookup-phone/llms.txt): $1.498 per 1,000, 56% complete
- [LayerCall, contact us, Enterprise, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/contact-us-enterprise-get-v1-lookup-phone/llms.txt): 56% complete

## LayerCall's calls for this API (2)

- `POST /v1/batch`: [LayerCall, free, POST /v1/batch](https://datacircle.dev/validate-phone-apis/layercall/free-post-v1-batch/llms.txt)
- `GET /v1/lookup/phone`: [LayerCall, free, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/free-get-v1-lookup-phone/llms.txt)

## LayerCall's APIs (3)

- [LayerCall Email verification API pricing, 5 plans, POST /v1/batch](https://datacircle.dev/validate-email-apis/layercall/free-post-v1-batch/llms.txt)
- [LayerCall Email verification API pricing, 5 plans, GET /v1/verify/email](https://datacircle.dev/validate-email-apis/layercall/free-get-v1-verify-email/llms.txt)
- [LayerCall IP company lookup API pricing, 5 plans, POST /v1/batch](https://datacircle.dev/ip-company-lookup-apis/layercall/free-post-v1-batch/llms.txt)
- [LayerCall IP company lookup API pricing, 5 plans, GET /v1/score/ip](https://datacircle.dev/ip-company-lookup-apis/layercall/free-get-v1-score-ip/llms.txt)
- [LayerCall Phone validation API pricing, 5 plans, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/free-get-v1-lookup-phone/llms.txt)

## LayerCall: phone validation API alternatives

[LayerCall alternatives: other phone validation API providers by price](https://datacircle.dev/layercall-alternatives.txt)

We list LayerCall's cheapest paid plan first. Next we list other providers' plans closest to LayerCall in price per 1,000 phones.

- [LayerCall, $749 monthly, Scale, GET /v1/lookup/phone](https://datacircle.dev/validate-phone-apis/layercall/749-monthly-scale-get-v1-lookup-phone/llms.txt): $1.498 per 1,000, 56% complete
- [APIVerve, $29.99 monthly](https://datacircle.dev/validate-phone-apis/apiverve/29-99-monthly/llms.txt): $1.50 per 1,000, 78% complete, 1 day
- [ProWebLook, $15 pack](https://datacircle.dev/validate-phone-apis/proweblook/15-pack/llms.txt): $1.50 per 1,000, 67% complete, stored
- [ReefAPI, $15 monthly, Pro monthly, POST /phone-validate/v1/validate](https://datacircle.dev/validate-phone-apis/reefapi/15-monthly-pro-monthly-post-phone-validate-v1-validate/llms.txt): $1.50 per 1,000, 67% complete, stored
- [Lead Identity Check, pay as you go](https://datacircle.dev/validate-phone-apis/lead-identity-check/pay-as-you-go/llms.txt): $1.50 per 1,000, 11% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://www.layercall.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/docs/endpoints?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/docs/test-mode?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/products/phone-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.layercall.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing