# Fideo, contact us: Phone finder API

> Phone Signals enables you to retrieve a list of known cell, home and work phone numbers, as well as associated phone metadata of a given contact.

Fideo's phone finder API on its Signals plan. It returns 2 of the 11 key fields we check: Number, Verification.
We haven't run Fideo through [our phone finder API benchmark](https://datacircle.dev/best-phone-finder-api.txt) yet.
Fideo gives this plan's price on request. We rank 694 plans for phone finder APIs by price. Half the plans cost $250.00 per 1,000 phones or less.
[QuickEnrich's $399 monthly plan](https://datacircle.dev/find-phone-apis/quickenrich/399-monthly/llms.txt) costs the least per 1,000 phones: as little as $0.0015. QuickEnrich's $399 monthly plan covers up to 259,200,000 phones a month at no extra cost.
[MillionPhones](https://datacircle.dev/find-phone-apis/millionphones/300-monthly-pro-40000-credits-mo-get-phone/llms.txt), [AI Ark](https://datacircle.dev/find-phone-apis/ai-ark/119-monthly-usage-based-plan-30000-credits-month-post-v1-people-mobile-phone-finder/llms.txt) and [Fiber AI](https://datacircle.dev/find-phone-apis/fiber-ai/top-up-from-3-pay-as-you-go-post-v1-contact-details-single/llms.txt) are the best phone finder API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/find-phone-apis/fideo/contact-us
- [Phone finder API: 20+ providers compared on price and data](https://datacircle.dev/best-phone-finder-api.txt)
- Get it: https://www.fideo.ai/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- Request: `POST https://api.fideo.ai/signals`
- API key: with the plan, on https://www.fideo.ai/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- Its API docs: https://docs.fideo.ai/docs/phone-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- Sold by: Fideo (https://www.fideo.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 18%
- Number: ✓
- Verification: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Phone Signals enables you to retrieve a list of known cell, home and work phone numbers, as well as associated phone metadata of a given contact.

## Data

- Keep data: the Subscription Term, then delete it
- Use data: solely for the Permitted Uses, Customer will not use, and will not allow or require any Third Party End Users to use, Fideo Data or Fideo Data Services: (i) to determine any person’s employability, credit worthiness, credit standing, credit capacity, or other characteristics related to such person’s manner or mode of living, as listed in Section 603(d) of the Fair Credit Reporting Act, (ii) to make a decision by automated processing to evaluate, analyze, or predict an individual’s preferences where the decision results in the provision or denial of financial or lending services, housing, insurance, education enrollment or opportunity, criminal justice, employment opportunities, health care services, or access to essential goods or services, (iii) in any manner that violates Applicable Law, (iv) to build or support products or services that are competive with Fideo Data Services, or (v) in any manner that exceeds the scope of the licenses granted or the limits or restrictions set forth in the Agreement

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Content-Type header "application/json", one of profiles, emails, ssns or name with location. Optional: name.middle, location.addressLine1, location.addressLine2, location.city, location.region, location.regionCode, location.postalCode, location.country, location.countryCode, organization, title, ipAddress, birthday, countries, excludedCountries
- Method: POST
- Path: /signals

## About the plan

- Plan: Signals
- Who can get it: anyone who contacts Fideo with a use case and signs an Order Form

## The 6 fields the plan's answer can hold

phone, phone label, phone first seen, phone last seen, phone observations, phone confidence

## Fideo's plans (1)

- [Fideo, contact us](https://datacircle.dev/find-phone-apis/fideo/contact-us/llms.txt): 18% complete

## Fideo's calls for this API (1)

- `POST /signals`: [Fideo, contact us](https://datacircle.dev/find-phone-apis/fideo/contact-us/llms.txt)

## Fideo's APIs (6)

- [Fideo: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/fideo/free/llms.txt)
- [Fideo: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/fideo/free/llms.txt)
- [Fideo: email finder API pricing, 1 plan](https://datacircle.dev/find-email-apis/fideo/contact-us/llms.txt)
- [Fideo: phone finder API pricing, 1 plan](https://datacircle.dev/find-phone-apis/fideo/contact-us/llms.txt)
- [Fideo: people enrichment API pricing, 1 plan](https://datacircle.dev/person-enrichment-apis/fideo/contact-us/llms.txt)
- [Fideo: reverse email lookup API pricing, 1 plan](https://datacircle.dev/reverse-email-lookup-apis/fideo/contact-us/llms.txt)

## Fideo: phone finder API alternatives

- [AI Ark, contact us, Agency & Enterprise Plan, POST /v1/people/mobile-phone-finder](https://datacircle.dev/find-phone-apis/ai-ark/contact-us-agency-enterprise-plan-post-v1-people-mobile-phone-finder/llms.txt): 18% complete, 30 days
- [Reverse Contact, contact us](https://datacircle.dev/find-phone-apis/reverse-contact/contact-us/llms.txt): 18% complete
- [Findymail, contact us](https://datacircle.dev/find-phone-apis/findymail/contact-us/llms.txt): 18% complete, live
- [Fuse AI, contact us, Usage plan, POST /business/data/people/phone](https://datacircle.dev/find-phone-apis/fuse-ai/contact-us-usage-plan-post-business-data-people-phone/llms.txt): 18% complete
- [BIGDBM, contact us](https://datacircle.dev/find-phone-apis/bigdbm/contact-us/llms.txt): 18% 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 2026-11-04.

- https://docs.fideo.ai/docs/authorization?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://docs.fideo.ai/docs/create-api-key?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://docs.fideo.ai/docs/multi-field-inputs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://docs.fideo.ai/docs/phone-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://docs.fideo.ai/docs/signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://docs.fideo.ai/docs/verify?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://www.fideo.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://www.fideo.ai/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing
- https://www.fideo.ai/legal/services-agreement?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=phone-finder-api-pricing