No moat. Still in business.

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Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.

Since 2017

Data and spreadsheets

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Sends app email such as receipts and resets over an API or SMTP, and checks domain authentication before you start sending.

Free plan · Transactional email · Developers

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Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.

Since 2026

Free plan · Developer tools · Developers

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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Sends app email and text messages such as receipts, login codes and newsletters through an API, SDKs or an AI agent.

Since 2026

Free plan · Email marketing · Developers

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Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

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Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.

Uptime and monitoring · Developers

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Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.

Since 2023

Data and spreadsheets

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Send transactional email and SMS from your app through one API, then track delivery, with data kept in France.

Transactional email · Developers

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An SMTP relay and email API for sending transactional and marketing mail from apps, with searchable delivery logs.

Free plan · Transactional email · Developers

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Sends email for hosting companies and multi-tenant apps, and stops spam from compromised customer accounts before it hurts delivery.

Transactional email · Developers

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An email sending API for developers that shows every message's path from queue to delivery, bounce or open.

Free plan · Transactional email · Developers

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One API for sending and receiving email, SMS and voice calls, with US A2P 10DLC SMS registration handled for you.

Free plan · Transactional email · Developers

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Lets AI agents send, receive and reply to email in threads over an API or MCP, with usage limits and approvals.

Free plan · Transactional email · Developers

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Self-hosted drop-in replacement for the Resend API that sends app email through Amazon SES for developers.

Free · Transactional email · Developers

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Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.

Since 2026

Free plan · Developer tools · Developers

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Transactional email API and SMTP relay for apps, run by a Canadian company that keeps all data and servers in Canada.

Since 2026

Free plan · Transactional email · Developers

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Gives AI agents their own email address through an API or MCP server so they can send, read and reply to mail.

Since 2026

Free plan · Transactional email · Developers

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Email API and SMTP relay for sending app emails, priced on usage, from an independent self-funded team.

Since 2026

Pay as you go · Transactional email · Developers

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Gives each AI agent a real email address, and soon a phone number, so it can read mail, reply and use login codes.

Since 2026

Free plan · Developer tools · Developers

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Gives AI agents their own email addresses and inboxes through an API, hosted in the EU, for developers building agents.

Since 2026

Free plan · Transactional email · Developers

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An open-source email service for developers that sends app email and campaigns, run in their cloud or on your own server.

Free plan · Email marketing · Developers

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Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.

Since 2026

Developer tools · Developers

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Sends app and site emails such as receipts and password resets through EU-only servers, with an API, SMTP and SDKs.

Free plan · Email marketing · Developers

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Sends ready-made app emails like password resets, verification and billing notices for developers who want no email setup work.

Since 2026

Transactional email · Developers

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An email sending API and SMTP service for apps sending large volumes of receipts, resets and alerts, with a vetted shared network.

Since 2026

Subscription · Transactional email · Developers

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Sends app emails like password resets through an API or SMTP, plus product updates and automated sequences, for SaaS companies.

Free trial · Email marketing · Software companies

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Sends app emails through an API or SMTP relay, plus simple campaigns, hosted in Europe for developers and software teams.

Since 2025

Free plan · Email marketing · Developers

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Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

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Connect email accounts and get messages sent to your webhooks, with an API for replies and content analysis.

Free trial · Developer tools · Developers

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Deploys apps from a GitHub repo onto a server in your own cloud account, with HTTPS and redeploys on each push.

Since 2026

Free plan · Developer tools · Developers

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An AI agent inside Jupyter that writes and runs Python cells, reads the results and fixes errors during data analysis.

Free plan · Developer tools · Developers

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Hosting for Python FastAPI apps that deploys with one command and handles scaling and HTTPS for developers.

Since 2026

Developer tools · Developers

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Sets up and manages your own cloud server to deploy Django apps, with a dashboard, CLI and API.

Since 2021

Free plan · Developer tools · Developers

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Gives each of your app's users their own email address and passes incoming mail and attachments to your code by API or webhook.

Since 2025

Free plan · Transactional email · Developers

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Sends transactional and marketing email through an API or visual editor, billed by emails sent rather than contacts stored.

Free plan · Email marketing · Developers