MailFlat is a B2B product built for developers and AI agent builders.

What platforms does MailFlat run on?

MailFlat runs on the web, the command line, and API.

Is MailFlat still active?

The GitHub repository shows 7 commits in the last 90 days.

MailFlat is developed by MailFlat.

When did MailFlat launch?

MailFlat first shipped in 2026.

Does MailFlat have an API or integrations?

Yes — MailFlat exposes an MCP server and a public API.

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MailFlat

Name: MailFlat
Author: MailFlat

mailflat.netEmail & inbox

MailFlat creates encrypted email inboxes on demand for testing, automation, and autonomous agents. It supports web inboxes, APIs, MCP access, OTP and magic-link handling, and custom-domain addresses for developers and agent workflows.

MITWebCLICloud-managedAPI

Visit mailflat.net

Overview

10 features

MailFlat sits in PulseGate's Email & inbox category. It focuses on testing signups, OTP verification, and magic links without managing real email accounts. MailFlat is a B2B product aimed at developers and AI agent builders. It ships for the web, the command line, and API.

It is developed by MailFlat, and it first shipped in 2026. Development happens publicly on GitHub with 7 commits in the last 90 days. Among its 10 catalogued features are instant inboxes, OTP verification, and magic links. It exposes integrations via an MCP server and a public API. MailFlat is currently in beta.

Summary written by a language model from the project’s public pages.

Instant inboxes
OTP verification
Magic links
Email retention
End-to-end encryption
API access
MCP server
Custom domains
Web inbox
Agent integration

Built with & integrations

Framework

Next.js

AI providers

multiple

Connectors

MCPAPIgithub

Runs on

BrowserCLICloud-managedAPI-only

Detected from

Next.js: x-nextjs-cache header · x-nextjs-prerender header · /_next/static/ in the HTML
multiple: bLangChain in the HTML

Trust & compliance

License

MIT

Verified signals

HTTPSPrivacy Policy Terms of ServiceActive maintenance

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed9 Sept · 08:15 UTC
Your backfill is a photograph verified via DEV.to articles
Source: DEV.to articles · Open

Frequently asked questions about MailFlat

What does MailFlat do?: MailFlat focuses on testing signups, OTP verification, and magic links without managing real email accounts. It is catalogued under Email & inbox on PulseGate.
Who is MailFlat for?: MailFlat is a B2B product built for developers and AI agent builders.
What platforms does MailFlat run on?: MailFlat runs on the web, the command line, and API.
Is MailFlat still active?: The GitHub repository shows 7 commits in the last 90 days.
Who makes MailFlat?: MailFlat is developed by MailFlat.
When did MailFlat launch?: MailFlat first shipped in 2026.
Does MailFlat have an API or integrations?: Yes — MailFlat exposes an MCP server and a public API.

At a glance

Pricing: Freemium · pricing page detected
Platforms: API · CLI · Web
Languages: English
License: MIT
First seen: 9 Sept 2026
Status: 🟡 Beta
Built for: developers and AI agent builders
Model: B2B
Solves: Testing signups, OTP verification, and magic links without managing real email accounts.

Developer

Solo developer

Open source

Stars: 0
Forks: 0
Open issues: 0
Last commit: 23 Aug 2026
Commits 90d: 7
Contributors: 1
Authorship: Solo
Default branch: main
Latest release: v0.4.5 · 23 Aug 2026

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 9 Sept 2026

Identity audit (13)

Slug: your-backfill-is-a-photograph-mailflat-net
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 9 Sept 2026
Canonical URL: https://mailflat.net/

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