# Email Validator and Finder

> Check whether an email address is deliverable before you send to it, or find a work address from a name, a LinkedIn profile or a company domain.

Canonical URL: https://www.startuphub.ai/email-validator
Free to use: yes. Publisher: StartupHub.ai

## What it offers

- A single check returns a 0 to 100 confidence score and a status of valid, invalid, catch-all or unknown.
- Six signals are evaluated: syntax, MX records, disposable provider, role-based address, catch-all and the confidence score, and no email is sent.
- Finder modes include name plus company domain, LinkedIn profile URL, or a plain-language prompt.
- Bulk checks handle up to 100 addresses per batch and return results as a table.

## Why it is different

- A catch-all domain is reported as catch-all, never as valid.
- The finder verifies every candidate address before returning it.
- Validate, find by name, find by LinkedIn and find by domain sit in one tool with one API.

## How to use it

1. Paste an email address and run the check.
2. Switch to LinkedIn URL, Name plus domain, or AI prompt to find an address.
3. Read the verdict and the confidence score.
4. For a list, switch to bulk and paste up to 100 lines.

## Inputs and outputs

- Inputs: An email address, a LinkedIn profile URL, a first and last name with a company domain, or a list of up to 100 lines.
- Outputs: A status and a 0 to 100 confidence score per address, or a found address; the API returns JSON.

## Limits and plans

- Without an account, you get 10 validations and 10 finds a day, and signing in does not reduce that, and paid plans raise it.
- For bulk, full results need Pro Lite or above.
- Through the API, a validation costs 1 credit and a find costs 3 credits, and the Free plan includes 1,500 API credits a month in one pool for REST and MCP.
- With x402 pay per call, the price is $0.001 per validation and $0.003 per find.
- Plans and prices: https://www.startuphub.ai/pricing

## API and MCP

| Method | Endpoint | Auth and cost |
|---|---|---|
| POST | `https://www.startuphub.ai/api/v1/email/validate` | Bearer key, 1 credit; or x402 $0.001 |
| POST | `https://www.startuphub.ai/api/v1/email/discover` | Bearer key, 3 credits; or x402 $0.003 |

MCP server: `https://www.startuphub.ai/api/v1/mcp`
- `validate_email` (API key)
- `discover_email` (API key)

API keys and docs: https://www.startuphub.ai/api-docs

## Related tools

- [Email Finder](https://www.startuphub.ai/email-finder): Find a work email from a name and a company domain. Use it when you know who you want and not their inbox.
- [Bulk Email Verifier](https://www.startuphub.ai/bulk-email-verifier): Paste a list or a CSV and get a verdict on every row. Use it before a send, not after the bounces.
- [LinkedIn Email Finder](https://www.startuphub.ai/linkedin-email-finder): Paste a LinkedIn profile URL and get the verified work email. Use it when the profile is all you have.
- [All free tools](https://www.startuphub.ai/free-tools)