No moat. Still in business.

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Add-on pack for Contact Form 7 that adds spam blocking, saved entries, redirects, webhooks and payments.

Free plan · Forms and surveys

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A native Mac app for developers to set up local mock endpoints, inspect incoming requests and test webhooks and API failures.

Developer tools · 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.

Free plan · Developer tools · Developers

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Dashboard for email sent through Amazon SES showing bounces, deliveries, complaints, opens and clicks, run yourself or hosted.

Free · Transactional email · Developers

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A free, quick kanban board for tracking bugs, ideas and small projects, which you can also run on your own server.

Free · Projects and tasks

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An email API that developers use to receive mail on their own domain as JSON, route it and reply in the same thread.

Subscription · Transactional email · Developers

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An API that gives AI agents their own email inboxes to send and receive mail, with webhooks and scanning for prompt injection.

Free plan · Transactional email · Developers

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Runs a team of coding agents like Claude Code and Codex in separate cloud sandboxes that you can manage together

Since 2025

Developer tools · Developers

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Posts a Slack alert when Apple or Google approves or rejects your app, or a TestFlight build is ready.

Since 2023

Subscription · Uptime and monitoring · Developers

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An API and MCP server that lets AI agents send contracts and collect two-party signatures by email.

Free plan · Documents and e-signature · Developers

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A VS Code based editor that runs several coding agents at once, each in its own Git worktree, so you can review their work.

Developer tools · Developers

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Send your own HTML form to a hosted endpoint that stores entries, holds back spam and forwards them to email or other tools.

Forms and surveys · Agencies

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Gives you one fixed webhook URL that forwards Stripe and Paddle events to whichever branch deployment you are testing.

Free plan · Developer tools · Developers

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Receives webhooks for your app, retries failed deliveries and keeps a replayable history so no events get lost.

Free plan · Developer tools · Developers

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Sends you new business websites in your market each week, filtered by keyword or tech, with their contact details.

Since 2026

Subscription · CRM and sales · Agencies

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A desktop app for running coding agents in parallel Git worktrees, scheduling their work and reviewing the diffs.

Free · Developer tools · Developers

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Trigger webhooks and HTTP calls from Apple Watch faces, widgets and Siri, and see the response code.

Developer tools · Developers

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Hosted service that sends webhooks for software teams, with retries, dead letter queues and delivery logs.

Free plan · Developer tools · Developers

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Hosted backend that takes in webhooks from Stripe, Shopify and others, stores them and runs your code with queues, cron and retries.

Free plan · Developer tools · Developers

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Sends messages from your scripts, servers or webhooks straight to the Pocket Alert app on your iPhone or Android phone.

Free plan · Uptime and monitoring · Developers

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An API that takes videos your users upload, converts them to web-ready formats and serves them from a CDN.

Free plan · Video and audio · Developers

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Desktop app for developers to supervise several coding agents at once, each in a separate git worktree, with diffs reviewed inline.

Developer tools · Developers

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Mac app that runs Claude Code, Codex and other coding agents side by side in separate git worktrees, with a second agent reviewing diffs.

Since 2026

Free · Developer tools · Developers

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Uptime checks you set up through an API, a GitHub Action or an AI agent, with alerts when a site goes down.

Free plan · Uptime and monitoring · Developers

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Build PDF templates in a visual or HTML editor, then fill them with data by API or Zapier to make invoices and other files.

Free plan · Documents and e-signature

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A small headless CMS for writing and publishing blog posts and media, pulled into your site by API.

Free plan · Website builders · Creators and writers

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Opens a public HTTPS address to a server on your own machine, so developers can test webhooks and bots.

Free plan · Developer tools · Developers

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API and dashboard that let developers send and receive WhatsApp messages from their own product.

Since 2025

Free plan · Developer tools · Developers

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Mac app for running several coding agents at once, giving each its own issue, branch and git worktree.

Since 2026

Developer tools · Developers

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Gives static website forms a hosted endpoint that stores submissions, filters spam and sends alerts to email, Slack or Discord.

Forms and surveys · 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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A desktop app for running several coding agents side by side, each in its own git worktree, with diffs and terminals.

Free · Developer tools · Developers

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A free personal URL that emails you when a script, cron job or build calls it, for developers who want simple alerts.

Free · Uptime and monitoring · Developers

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A small self-hosted support desk with chat-style tickets, a customer portal and staff queues, running as one Go binary.

Free · Customer support

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Turns PDF liability waivers into online forms that customers sign, for businesses that still collect paper waivers.

Free plan · Documents and e-signature

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Sends webhooks from your app to customers with retries, signatures and logs, hosted in the EU or run on your own servers.

Free plan · Developer tools · Developers

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Hosted service that receives, logs and retries webhooks, with a CLI for local testing and a typed SDK.

Since 2024

Developer tools · Developers

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Gives each service a private webhook URL and turns incoming JSON into plain English iPhone alerts, with sensitive fields masked.

Uptime and monitoring · Developers

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Receives webhooks from providers like Stripe, then verifies, stores and forwards them to your services with retries.

Free plan · Developer tools · Developers

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A hosted service that sends your app's webhooks with retries, logs and debugging so developers need not build it.

Free plan · Developer tools · Developers

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Pulls data out of recurring emails and attachments using your rules, then sends it to spreadsheets, CRMs or webhooks.

Since 2013

Free trial · Data and spreadsheets

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Lets support and sales staff browse any website together with a customer in real time, without installing code.

Since 2013

Customer support

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An API that renders HTML and saved templates into PDFs and screenshots, for developers who need documents from their apps.

Pay as you go · Documents and e-signature · Developers

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Send app events with one HTTP call, then search them and get them delivered to Slack, Discord, Telegram or webhooks.

Free plan · Developer tools · Developers

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A light self-hosted Git server with a web interface that runs as one binary or Docker container on small machines.

Free · Developer tools · Developers

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Build a branded waitlist page for an upcoming product, collect and verify signups, and export or push them elsewhere.

Free plan · Forms and surveys · Software companies

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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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A Chrome extension that gives you a webhook URL, so automation tools can open links as new tabs in your browser.

Automation and integrations · Developers