# Kickbox AI integration on Definable

> Kickbox provides an API for real-time email verification, list cleaning, and quality scoring to ensure email deliverability.

## What this connects

Kickbox provides an API for real-time email verification, list cleaning, and quality scoring to ensure email deliverability.

Vendor: https://kickbox.com/

## Tools available

**2** tools available. First 2:

- `KICKBOX_CHECK_DISPOSABLE` — Check Disposable Email — Tool to check if an email address or domain is from a disposable email service. Use when you need to validate whether an email is temporary or throwaway (e.g., mailinator.com, trashmail.com). This is a free public endpoint that does not require authentication.
- `KICKBOX_SINGLE_VERIFICATION_API` — Kickbox Single Verification — Tool to verify a single email address via Kickbox. Use when you need real-time validation of an individual email before critical workflows.

## Auth

Auth schemes: `API_KEY`.

## How agents use Kickbox

Inside a Definable workflow, Kickbox is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → Kickbox** — the Researcher (GPT-5.5) pulls context from Kickbox (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → Kickbox** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into Kickbox (create record, post message, draft email).
- **Designer / Engineer → Distributor → Kickbox** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via Kickbox (attach file, open PR comment, post status).

The Verifier checks every Kickbox call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- email — https://definable.ai/apps/category/email/
- developer tools — https://definable.ai/apps/category/developer-tools/

## Related

- HTML page: https://definable.ai/apps/kickbox/
- Same category (email): https://definable.ai/apps/category/email/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt