# Endereco, free, Ohne Kosten für Entwickler: Phone validation API

> Validiere Typ und Gültigkeit einer Telefonnummer und normiere deren Schreibweise.

Endereco's phone validation API on its Ohne Kosten für Entwickler plan. It costs $0.00 per 1,000 phones. It returns 5 of the 9 key fields we check: Number, Formats, Validity, Carrier, Place.
We haven't run Endereco through [our phone validation API benchmark](https://datacircle.dev/best-phone-validation-api.txt) yet.
This plan is free. We rank 768 plans for phone validation APIs by price. Half the plans cost $3.60 per 1,000 phones or less.
[Botoi's $199 monthly plan](https://datacircle.dev/validate-phone-apis/botoi/199-monthly/llms.txt) is the cheapest paid plan per 1,000 phones: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 phones a day.
[Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone/llms.txt), [Foxentry](https://datacircle.dev/validate-phone-apis/foxentry/top-up-pay-as-you-go-post-phone-validate-validate-phone-number-extended/llms.txt) and [HLR Lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/top-up-1-1m-post-hlr-lookup/llms.txt) are the best phone validation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-phone-apis/endereco/free-ohne-kosten-fur-entwickler
- [Phone validation API: 40+ providers compared](https://datacircle.dev/best-phone-validation-api.txt)
- Get it: https://www.endereco.de/preise/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Request: `POST https://endereco-service.de/rpc/v1`
- API key: with the plan, on https://www.endereco.de/preise/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Its API docs: https://github.com/Endereco/enderecoservice_api/blob/master/services/phone-check.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- Sold by: Endereco (https://www.endereco.de?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing)
- Checked: 2026-11-03

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validiere Typ und Gültigkeit einer Telefonnummer und normiere deren Schreibweise.

## Data

- Freshness: live
- What it checks: numbering plan, line in service
- Keep data: no limit
- Use data: Dem Kunden ist es untersagt, vom Anbieter gelieferte Daten außerhalb des in diesem Vertrag und seinen Anlagen geregelten Nutzungsumfangs zu nutzen. Ihm ist es insbesondere untersagt, die Daten Dritten zu überlassen, die Daten an Dritte zu verkaufen oder Dritten sonst wie Nutzungsrechte unter Umgehung dieses Vertrages einzuräumen.

## Plan

- Pay: €0
- You get: 250 requests a month
- Enough for: 250 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Content-Type header "application/json", jsonrpc "2.0", id, method "phoneCheck", params.phone. Optional: params.format, X-Transaction-Id header
- Method: POST
- Path: /rpc/v1

## About the plan

- Plan: Ohne Kosten für Entwickler
- Who can get it: developers who sign its data processing agreement

## The 14 fields the plan's answer can hold

original phone, corrected phone, national format, international format, E.164 format, RFC 3966 format, region, carrier, country prefix, national number, national prefix, national body, leading zeros, status

## Endereco's plans (5)

- [Endereco, free, Ohne Kosten für Entwickler](https://datacircle.dev/validate-phone-apis/endereco/free-ohne-kosten-fur-entwickler/llms.txt): $0.00 per 1,000, 56% complete, live
- [Endereco, free, Testphase](https://datacircle.dev/validate-phone-apis/endereco/free-testphase/llms.txt): $0.00 per 1,000, 56% complete, live
- [Endereco, pay as you go, Pro: 10,000-50,000 API requests a month](https://datacircle.dev/validate-phone-apis/endereco/pay-as-you-go-pro-10000-50000-api-requests-a-month/llms.txt): $33.759 per 1,000, 56% complete, live
- [Endereco, pay as you go, Expert: 1-10,000 API requests a month](https://datacircle.dev/validate-phone-apis/endereco/pay-as-you-go-expert-1-10000-api-requests-a-month/llms.txt): $45.012 per 1,000, 56% complete, live
- [Endereco, contact us](https://datacircle.dev/validate-phone-apis/endereco/contact-us/llms.txt): 56% complete, live

## Endereco's calls (1)

- `POST /rpc/v1`: [Endereco, free, Ohne Kosten für Entwickler](https://datacircle.dev/validate-phone-apis/endereco/free-ohne-kosten-fur-entwickler/llms.txt)

## Endereco's APIs (2)

- [Endereco: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/endereco/free-ohne-kosten-fur-entwickler/llms.txt)
- [Endereco: phone validation API pricing, 5 plans](https://datacircle.dev/validate-phone-apis/endereco/free-ohne-kosten-fur-entwickler/llms.txt)

## Endereco: phone validation API alternatives

- [Loqate, $1,000 pack](https://datacircle.dev/validate-phone-apis/loqate/1000-pack/llms.txt): $31.00 per 1,000, 78% complete, live
- [2Chat, $372 yearly, Single Plan, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number, full](https://datacircle.dev/validate-phone-apis/2chat/372-yearly-single-plan-get-open-whatsapp-check-number-your-number-number-to-check-check-number-full/llms.txt): $31.00 per 1,000, 33% complete, live
- [Postcoder, £987 pack](https://datacircle.dev/validate-phone-apis/postcoder/987-pack/llms.txt): $31.588 per 1,000, 56% complete, live
- [Listar, top-up from €100,000, Diamond, POST /search/verify-phone-ownership](https://datacircle.dev/validate-phone-apis/listar/top-up-from-100000-diamond-post-search-verify-phone-ownership/llms.txt): $33.759 per 1,000, 67% 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 2026-11-03.

- https://github.com/Endereco/enderecoservice_api/blob/master/guidelines/sessions-guideline.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://github.com/Endereco/enderecoservice_api/blob/master/readme.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://github.com/Endereco/enderecoservice_api/blob/master/services/phone-check.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.endereco.de?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.endereco.de/agb/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.endereco.de/preise/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing
- https://www.endereco.de/wp-content/uploads/2026/04/AGB-Endereco-mit-Anlagen_27042026.pdf?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-validation-api-pricing