> ## Documentation Index
> Fetch the complete documentation index at: https://docs.waterfall.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Complete API reference for Waterfall — find and enrich contacts, prospect by title and company, verify emails, and more.

The Waterfall API is available at `https://api.waterfall.io`. All requests require an API key in the `x-api-key` header.

## Endpoints

| Endpoint                                              | Type  | Description                                                                                                                                          |
| ----------------------------------------------------- | ----- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Prospector](/v1/prospector-launcher)                 | Async | Find contacts at a target company by title and location filters. Returns emails, phones (optional), and employment history.                          |
| [Search Contact](/v1/search-contact-launcher)         | Sync  | Search contacts by company identity, title, department, seniority, or hire date. Returns profile data — contact channels not included.               |
| [Search Company](/v1/search-company-launcher)         | Sync  | Search companies by industry, headquarters country, and headcount range.                                                                             |
| [Contact Enrichment](/v1/contact-enrichment-launcher) | Async | Enrich a contact by LinkedIn, email, or name + domain. Returns verified email, phone (optional), title, and employment history.                      |
| [Phone Enrichment](/v1/phone-enrichment-launcher)     | Async | Find mobile and direct-dial numbers for a contact.                                                                                                   |
| [Company Enrichment](/v1/company-enrichment-launcher) | Async | Enrich a company by domain, LinkedIn, or name. Returns full company profile.                                                                         |
| [Company Reveal](/v1/company-reveal-launcher)         | Sync  | Reveal company information from an IPv4 address. Beta.                                                                                               |
| [Company Titles](/v1/company-titles-launcher)         | Sync  | Get all active job titles at a company by domain or LinkedIn. Ideal for flexible title targeting and use alongside Search Contact title lists. Beta. |
| [Job Change Detection](/v1/job-change-launcher)       | Sync  | Check if a contact is still at a given company. Returns status and a profile snapshot.                                                               |
| [Email Verification](/v1/email-verifier)              | Sync  | Verify an email address and return deliverability status.                                                                                            |
| [Webhook JWKS](/v1/webhook-jwks)                      | Sync  | Fetch Ed25519 public keys for verifying signed webhook deliveries.                                                                                   |
| [Account Reporting](/v1/account-reporter-v2)          | Sync  | Retrieve usage counters at the account and key level.                                                                                                |
| [API Key Management](/v1/api-keys-overview)           | Sync  | Create and manage sub-keys under a master key.                                                                                                       |