# Fideo, contact us: Reverse email lookup API

> Receive rich, data intelligence signals associated with an individual to further understand current, active and/or historical elements to ingest into algorithms in order to flag suspicious activities or validate identities.

Fideo's reverse email lookup API on its Signals plan. It returns 4 of the 13 key fields we check: Experience, Education, Location, Photo.
We haven't run Fideo through [our reverse email lookup API benchmark](https://datacircle.dev/best-reverse-email-lookup-api.txt) yet.
Fideo gives this plan's price on request. We rank 396 plans for reverse email lookup APIs by price. Half the plans cost $24.875 per 1,000 people or less.
[Minerva's $400 monthly plan](https://datacircle.dev/reverse-email-lookup-apis/minerva/400-monthly/llms.txt) costs the least per 1,000 people. Minerva's reverse email lookup API costs nothing beyond the plan price.
[Village's $25 pack (Reverse Lookup by Email, cached only)](https://datacircle.dev/reverse-email-lookup-apis/village/25-pack-1000-credits-post-v2-people-enrich-by-email-reverse-lookup-by-email-cached-only/llms.txt) covers any number of people. Village's $25 pack costs less up front than Minerva's $400 monthly plan.
[GetProspect](https://datacircle.dev/reverse-email-lookup-apis/getprospect/399-monthly-growth-50k-post-v2-people-enrich/llms.txt), [Village](https://datacircle.dev/reverse-email-lookup-apis/village/1-monthly/llms.txt) and [treg](https://datacircle.dev/reverse-email-lookup-apis/treg/top-up-from-200/llms.txt) are the best reverse email lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/reverse-email-lookup-apis/fideo/contact-us
- [Reverse email lookup API: 30+ providers compared](https://datacircle.dev/best-reverse-email-lookup-api.txt)
- Get it: https://www.fideo.ai/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-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=reverse-email-lookup-api-pricing
- Its API docs: https://docs.fideo.ai/docs/person-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Sold by: Fideo (https://www.fideo.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 31%
- Experience: ✓
- Education: ✓
- Location: ✓
- Photo: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Receive rich, data intelligence signals associated with an individual to further understand current, active and/or historical elements to ingest into algorithms in order to flag suspicious activities or validate identities.

## 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", emails. Optional: phones, profiles, ssns, name.given, name.family, 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 37 fields the plan's answer can hold

first name, middle name, last name, alias first name, alias middle name, alias last name, age, age range, gender, general location, street address, street address line 2, city, region, region code, country, country code, postal code, formatted location, employment is current, company name, company domain, job title, employment start date, employment end date, school name, degree, graduation date, social network, social profile username, social profile user ID, social profile URL, social profile bio, social profile followers, social profile following, photo label, photo URL

## Fideo's plans (1)

- [Fideo, contact us](https://datacircle.dev/reverse-email-lookup-apis/fideo/contact-us/llms.txt): 31% complete

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

- `POST /signals`: [Fideo, contact us](https://datacircle.dev/reverse-email-lookup-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: reverse email lookup API alternatives

- [Village, contact us, Forward-deployed, POST /v2/people/enrich/by-email, Reverse Lookup by Email](https://datacircle.dev/reverse-email-lookup-apis/village/contact-us-forward-deployed-post-v2-people-enrich-by-email-reverse-lookup-by-email/llms.txt): 31% complete, stored
- [Bytemine, contact us](https://datacircle.dev/reverse-email-lookup-apis/bytemine/contact-us/llms.txt): 31% complete, stored
- [LeadBoxer, contact us, Platform pay per use, 10M+ credits, POST /v1/email-lookup](https://datacircle.dev/reverse-email-lookup-apis/leadboxer/contact-us-platform-pay-per-use-10m-credits-post-v1-email-lookup/llms.txt): 31% complete
- [Hunter, contact us, Enterprise, GET /combined/find](https://datacircle.dev/reverse-email-lookup-apis/hunter/contact-us-enterprise-get-combined-find/llms.txt): 31% 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=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/create-api-key?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/location-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/multi-field-inputs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/person-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/professional-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/social-signals?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.fideo.ai/docs/verify?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.fideo.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.fideo.ai/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.fideo.ai/legal/services-agreement?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing