# Waterfall.io, contact us: People enrichment API

> Check whether a known contact has moved to another company, left a company, or stayed in place.

Waterfall.io's people enrichment API on its Rates are quoted against your data plan. It returns 3 of the 13 key fields we check: Experience, About, Location.
We rank 132 plans by price. [GetLeads's $249 monthly plan](https://datacircle.dev/person-enrichment-apis/getleads/249-monthly-partner-post-api-v1-enrich-csv/llms.txt) is the cheapest paid plan per 1,000 people: as little as $0.042. GetLeads's $249 monthly plan covers up to 6,000,000 people a month at no extra cost.
[GetProspect's $49 monthly plan (/v2/people/{id})](https://datacircle.dev/person-enrichment-apis/getprospect/49-monthly-starter-get-v2-people-id/llms.txt) covers any number of people. GetProspect's $49 monthly plan costs less to start than GetLeads's $249 monthly plan.
[Context.dev](https://datacircle.dev/person-enrichment-apis/context-dev/500-monthly/llms.txt), [Reverse Contact](https://datacircle.dev/person-enrichment-apis/reverse-contact/500-pack/llms.txt) and [Autobound](https://datacircle.dev/person-enrichment-apis/autobound/149-pack/llms.txt) are the best people enrichment API providers in our benchmark.

- This page: https://datacircle.dev/person-enrichment-apis/waterfall-io/contact-us
- [Best people enrichment API in 2026: pricing compared](https://datacircle.dev/best-people-enrichment-api.txt)
- Get it: https://www.waterfall.io/pricing
- Request: `POST https://api.waterfall.io/v1/job/change`
- API key: with the plan, on https://www.waterfall.io/pricing
- Its API docs: https://docs.waterfall.io/v1/job-change-launcher
- Sold by: Waterfall.io (https://www.waterfall.io)
- Checked: 2026-10-26

## In the answer

- Completeness: 23%
- Experience: ✓
- About: ✓
- Location: ✓

## Price

- Per: call
- Billing: contact

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Contact Enrichment · Phone Enrichment · Prospector · Search Contact · Search Company · Company Enrichment · Company Reveal · Company Titles · Email Verifier

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Check whether a known contact has moved to another company, left a company, or stayed in place.

## Data

- Keep data: set by your agreement with Waterfall, not public
- Use data: for internal sales and marketing use or, with our permission, for integration into their products

## Rate limit

- Per second: 0.83
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: professional_email, or company_domain with one of contact_linkedin, professional_email, personal_email or contact_full_name, or company_linkedin with one of contact_linkedin, professional_email or personal_email. Optional: contact_full_name, custom_fields
- Method: POST
- Path: /v1/job/change

## About the plan

- Plan: Rates are quoted against your data
- Who can get it: business users 18 or over, who sign after a call

## The 45 fields the plan's answer can hold

job change status, job status, start date, stop date, input, job ID, context ID, custom fields, person ID, first name, last name, LinkedIn ID, LinkedIn URL, about, location, country, company ID, company LinkedIn ID, company name, company domain, job title, seniority, department, job history title, job history location, job history company name, job history company LinkedIn ID, job history company LinkedIn URL, job history company domain, job history start year, job history start month, job history start date, job history end year, job history end month, job history end date, job history current, job history description, usage total USD, usage balance remaining USD, usage persons count, usage persons USD, usage phones count, usage phones USD, usage companies count, usage companies USD

## Waterfall.io's plans (1)

- [Waterfall.io, contact us](https://datacircle.dev/person-enrichment-apis/waterfall-io/contact-us/llms.txt): 23% complete

## Waterfall.io's calls for this API (1)

- `POST /v1/job/change`: [Waterfall.io, contact us](https://datacircle.dev/person-enrichment-apis/waterfall-io/contact-us/llms.txt)

## Waterfall.io's APIs (8)

- [Waterfall.io: LinkedIn profile API pricing, 1 plan](https://datacircle.dev/linkedin-profile-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: company discovery API pricing, 1 plan](https://datacircle.dev/company-discovery-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: email finder API pricing, 1 plan](https://datacircle.dev/find-email-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: phone finder API pricing, 1 plan](https://datacircle.dev/find-phone-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: people enrichment API pricing, 1 plan](https://datacircle.dev/person-enrichment-apis/waterfall-io/contact-us/llms.txt)
- [Waterfall.io: people search API pricing, 1 plan, POST /v1/prospector](https://datacircle.dev/people-search-apis/waterfall-io/contact-us-rates-are-quoted-against-your-data-post-v1-prospector/llms.txt)
- [Waterfall.io: people search API pricing, 1 plan, POST /v1/search/contact](https://datacircle.dev/people-search-apis/waterfall-io/contact-us/llms.txt)

## Waterfall.io: people enrichment API alternatives

- [NeuralVerge, contact us, Custom, POST /functions/v1/run-linkedin-domain](https://datacircle.dev/person-enrichment-apis/neuralverge/contact-us/llms.txt): 23% complete, live
- [Apollo, contact us](https://datacircle.dev/person-enrichment-apis/apollo/contact-us/llms.txt): 31% complete, 1 month
- [Refetcher, contact us, Access on request, POST /people-detail](https://datacircle.dev/person-enrichment-apis/refetcher/contact-us-access-on-request-post-people-detail/llms.txt): 23% complete
- [Sumble, contact us, Enterprise, POST /v9/people, People](https://datacircle.dev/person-enrichment-apis/sumble/contact-us-enterprise-post-v9-people-people/llms.txt): 23% complete, 1 day
- [Societeinfo, contact us](https://datacircle.dev/person-enrichment-apis/societeinfo/contact-us/llms.txt): 8% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-26.

- https://docs.waterfall.io/v1/faq.md
- https://docs.waterfall.io/v1/inline-usage
- https://docs.waterfall.io/v1/introduction
- https://docs.waterfall.io/v1/job-change-finder.md
- https://docs.waterfall.io/v1/job-change-launcher
- https://docs.waterfall.io/v1/rate-limit
- https://docs.waterfall.io/v1/use-cases/job-changes.md
- https://waterfall-io-public.s3.us-east-1.amazonaws.com/api_specs.yaml
- https://www.waterfall.io/
- https://www.waterfall.io/book-a-call
- https://www.waterfall.io/pricing
- https://www.waterfall.io/privacy-policy
- https://www.waterfall.io/product/contact-enrich
- https://www.waterfall.io/terms-of-service