---
title: "Firstsales (@firstsales)"
description: "Firstsales: API listing imported from its public OpenAPI spec."
account: "firstsales"
---

# Firstsales

Firstsales: API listing imported from its public OpenAPI spec.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/firstsales/feed.md

- [FirstSales Public API](https://skmtc.dev/firstsales/apis/firstsales-public-api.md): Email validation, DNS/deliverability checks, domain intelligence, and cold-email content scoring, no key needed