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

# Prospeo

> Nous's default enrichment provider — looks up email, phone, LinkedIn, and company data for your contacts.

## Overview

Prospeo is Nous's **default enrichment provider**. When a contact is created or updated with incomplete data, Nous automatically enriches it via Prospeo — no configuration required if you want to use Nous's built-in key.

To use your own Prospeo account (for higher rate limits or BYOK billing), connect a personal API key.

## How enrichment works

Enrichment runs in this priority order:

1. **Apollo BYOK** — if you've connected Apollo and toggled on enrichment (see [Apollo](/providers/apollo))
2. **Prospeo BYOK** — if you've connected your own Prospeo key
3. **Nous's built-in Prospeo key** — used as the fallback for all workspaces

## Connect your own Prospeo key

1. Go to [prospeo.io](https://prospeo.io) and copy your API key from the dashboard.
2. In Nous, go to **Settings → Integrations → Prospeo**.
3. Paste your API key and click **Save**.

## What gets enriched

| Field                | Source                 |
| -------------------- | ---------------------- |
| Work email           | Prospeo email finder   |
| Phone number         | Prospeo mobile finder  |
| LinkedIn URL         | Prospeo profile lookup |
| Job title            | Prospeo                |
| Company name, domain | Prospeo                |

## Environment variables (self-hosted)

| Variable           | Description                                                             |
| ------------------ | ----------------------------------------------------------------------- |
| `PROSPERO_API_KEY` | Nous's built-in Prospeo key — used when no workspace BYOK is configured |