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

# Name And Company To Email Waterfall

> Resolve contact email from first name, last name, company, domain, and LinkedIn URL via a waterfall of providers. Use it to pilot, verify output, and scale.

In Claude Code, type:

```
/deepline-gtm Find the work email for Jane Smith at Acme Corp (acme.com)
```

```
/deepline-gtm Find work emails for everyone in leads.csv using waterfall enrichment
```

<Accordion title="CLI command">
  ```bash theme={null}
  deepline enrich --with '{"alias":"email","tool":"name_and_domain_to_email_waterfall","payload":{"first_name":"Jane","last_name":"Smith","domain":"acme.com"}}'
  ```
</Accordion>

## How It Works

Providers are tried left to right. The first one to return a result wins — the rest are skipped.

```mermaid theme={null}
flowchart LR
  S0["Dropleads"]:::provider
  S1["Hunter"]:::provider
  S2["Leadmagic"]:::provider
  S3["Deepline Native *"]:::provider
  S4["Crustdata *"]:::provider
  S5["Peopledatalabs"]:::provider
  S0 --> S1 --> S2 --> S3 --> S4 --> S5
  classDef provider fill:#1e293b,stroke:#475569,color:#e2e8f0
```

*\* Only runs when optional fields are provided.*

## Parameters

| Name           | Type     | Required | Description                                                              |
| -------------- | -------- | -------- | ------------------------------------------------------------------------ |
| `first_name`   | `string` | Yes      | Contact first name.                                                      |
| `last_name`    | `string` | Yes      | Contact last name.                                                       |
| `company_name` | `string` | Yes      | Company name.                                                            |
| `domain`       | `string` | Yes      | Company domain (for example ramp.com).                                   |
| `linkedin_url` | `string` | No       | Optional LinkedIn profile URL for LinkedIn-dependent fallback providers. |

## Cost

**0-7 credits** — waterfalls stop at the first match, so you only pay for the provider that returns a result.

| Step            | Max Credits |
| --------------- | ----------- |
| Dropleads       | 0.3         |
| Hunter          | 0.3         |
| Leadmagic       | 0.3         |
| Deepline Native | 1           |
| Crustdata       | 1.2         |
| Peopledatalabs  | 3.9         |