# Sendexa, free: Phone validation API

> Validate phones, detect carriers, assess reachability, and flag fraud risk with a single Number Lookup API—built for verification and messaging quality.

Sendexa's Free trial plan for the phone validation API costs $0.00 per 1,000 phones. We check each provider's docs for 9 fields. Sendexa's docs list 5: Number, Validity, Carrier, Porting and roaming, Place.
Sendexa limits how many calls you get but gives no number.
We haven't run Sendexa through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. 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.](https://datacircle.dev/best-phone-validation-api.txt)
[GuGuData's CNY 124 (about $19) monthly plan](https://datacircle.dev/validate-phone-apis/gugudata/cny-124-monthly/llms.txt) 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](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/sendexa/free
- [Phone validation API in 2026: the best of 60+ compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.sendexa.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://api.sendexa.co/v1/lookup`
- API key: with the plan, on https://www.sendexa.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://docs.sendexa.co/docs/number-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Sendexa (https://www.sendexa.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 56%
- Number: ✓
- Validity: ✓
- Carrier: ✓
- Porting and roaming: ✓
- Place: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validate phones, detect carriers, assess reachability, and flag fraud risk with a single Number Lookup API—built for verification and messaging quality.

## Data

- Freshness: live
- Countries: Worldwide
- What it checks: numbering plan, carrier, line in service
- Keep data: no limit
- Use data: You agree to use our Services responsibly and in compliance with all applicable laws and regulations. You must not: Use our Services for any illegal or unauthorized purpose. Send spam, bulk unsolicited messages, or deceptive content. Violate any telecommunications laws or carrier policies. Attempt to circumvent our rate limits or security measures. Use our Services to transmit malware, viruses, or harmful code. Infringe on intellectual property rights of others. Harass, threaten, or abuse any individual or group. Use our Services for political campaigning without consent.

## Plan

- Pay: $0
- Expires: 14 days

## Rate limit

- Per second: 50
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: msisdn, Content-Type header "application/json". Optional: countryCode
- Method: POST
- Path: /v1/lookup

## About the plan

- Plan: Free trial
- Who can get it: anyone at least 18 years old

## The 17 fields the plan's answer can hold

request ID, timestamp, lookup ID, number, E.164 number, country, country code, carrier, network type, ported, roaming, reachable, HLR status, mobile country code, mobile network code, lookup cost, lookup cost currency

## Sendexa's plans (4)

- [Sendexa, free](https://datacircle.dev/validate-phone-apis/sendexa/free/llms.txt): $0.00 per 1,000, 56% complete, live
- [Sendexa, pay as you go, Growth](https://datacircle.dev/validate-phone-apis/sendexa/pay-as-you-go-growth/llms.txt): $5.00 per 1,000, 56% complete, live
- [Sendexa, pay as you go, POST /v1/lookup](https://datacircle.dev/validate-phone-apis/sendexa/pay-as-you-go-post-v1-lookup/llms.txt): $8.00 per 1,000, 56% complete, live
- [Sendexa, contact us](https://datacircle.dev/validate-phone-apis/sendexa/contact-us/llms.txt): 56% complete, live

## Sendexa's calls (1)

- `POST /v1/lookup`: [Sendexa, free](https://datacircle.dev/validate-phone-apis/sendexa/free/llms.txt)

## Sendexa's APIs (1)

- [Sendexa: phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/sendexa/free/llms.txt)

## Sendexa: phone validation API alternatives

- [Signal House, top-up from $10](https://datacircle.dev/validate-phone-apis/signal-house/top-up-from-10/llms.txt): $5.00 per 1,000, 44% complete, live
- [CallerAPI, $25 monthly, Basic, GET /api/network-lookup/{phone}](https://datacircle.dev/validate-phone-apis/callerapi/25-monthly-basic-get-api-network-lookup-phone/llms.txt): $5.00 per 1,000, 44% complete, live
- [ProWebLook, $250 pack, WhatsApp One-Time 50K, GET /wavalidation](https://datacircle.dev/validate-phone-apis/proweblook/250-pack-whatsapp-one-time-50k-get-wavalidation/llms.txt): $5.00 per 1,000, 67% complete, live
- [iBlueText, top-up, Pay-as-you-go lookup credits](https://datacircle.dev/validate-phone-apis/ibluetext/top-up-pay-as-you-go-lookup-credits/llms.txt): $5.00 per 1,000, 11% complete, live

## 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.

- https://docs.sendexa.co/authentication?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://docs.sendexa.co/docs/number-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://docs.sendexa.co/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.sendexa.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.sendexa.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.sendexa.co/products/number-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.sendexa.co/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing