No moat. Still in business.

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Issue tracking and project planning for software teams, with boards, sprints, roadmaps and AI agent handoffs.

Since 2016

Free plan · Projects and tasks · Developers

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A hosted API for product teams to send app notifications over email, SMS, push, chat and an in app inbox.

Since 2020

Free plan · Transactional email · Developers

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Authorization service that lets engineering teams define access policies in one place and check permissions for users and AI agents.

Security and passwords · Developers

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Shared Markdown notes and docs that a team and its AI agents can write and edit together in real time.

Free plan · Notes and knowledge · Developers

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Saves every prompt, session and tool call from your coding agents in one place so teams can search and share them.

Developer tools · Developers

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Sends automated email, SMS, push and WhatsApp messages using user segments and a visual journey builder, and can be embedded in your app.

Subscription · Email marketing · Health and clinics

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AI agents use your live web app like a real user, following set flows or exploring, and email you when something breaks.

Since 2026

Free plan · Uptime and monitoring · Developers

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Publish Markdown or HTML documents and collect versioned comments from colleagues and AI agents before signing them off.

Since 2026

Documents and e-signature · Developers

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Describe a sales or ops workflow in plain words and it builds an agent that runs it across your apps, with test runs first.

Since 2026

Free plan · Automation and integrations

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Crawls a website and gives AI agents an MCP endpoint, llms.txt and cited answers, plus stats on agent visits.

Since 2026

Free plan · SEO

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For founders: spots Reddit posts asking for a product like yours, writes reply drafts for approval, and tracks the traffic they bring.

Since 2026

Subscription · Marketing and social · Software companies

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Blog hosting your AI assistant sets up and writes for you, free on a subdomain with custom domains on a paid plan.

Since 2026

Free plan · Website builders · Creators and writers

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Runs background jobs, workflows and AI agent steps with retries and step logs, as an open source SDK and hosted cloud.

Since 2023

Free plan · Developer tools · Developers

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Detects AI agents logging into your SaaS app, masks private fields and asks the account owner before exports or payments.

Free trial · Security and passwords · Software companies

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Secrets manager that lets dev teams and AI agents store, sync and deploy app keys and env variables across environments.

Security and passwords · Developers

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One API and dashboard for sending product notifications by email, SMS, push, Slack and in-app inbox.

Since 2022

Subscription · Transactional email · Developers

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Builds and runs automated tests for Salesforce and other enterprise web apps from plain language, with no code.

Since 2024

Free trial · Developer tools · Software companies

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Hosted isolated sandboxes where AI agents can run code safely, with snapshots, Git hosting and orchestration.

Since 2024

Free plan · Developer tools · Developers

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Hosted service that runs your MCP servers behind a single URL, holds credentials and logs each tool call per client.

Since 2023

Free plan · Developer tools · Developers

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Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

Free plan · Developer tools · Developers

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An API that pulls structured data out of web pages using AI, aimed at developers and AI agent builders.

Since 2024

Free plan · Developer tools · Developers

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One API and an in-app inbox component that let software teams send notifications by email, SMS, push, chat and in-app.

Transactional email · Developers

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AI agents play through your game or app on real phones and PCs to find bugs and run QA tasks.

Since 2024

Developer tools · Developers

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Gives AI agents a US or Canadian phone number for calls and SMS, usable over MCP, REST or an agent skill.

Since 2026

Free plan · Developer tools · Developers

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Traces AI agent runs, scores them against your own rules and test cases, and gives a shareable report link.

Since 2026

Free plan · Developer tools · Developers

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Create AI agents from a system prompt, test them with simulated users, then publish a chat app or API without a backend.

Since 2026

Developer tools · Developers

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Gives AI coding agents and developers isolated full-stack environments on your own Kubernetes setup to test code against real services.

Since 2025

Free plan · Developer tools · Developers

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Open-source project boards where AI agents plan sprints and take on tasks next to human teammates.

Free · Projects and tasks · Developers

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Rent GPUs by the minute or call open models through an OpenAI-compatible API, for AI teams and their agents.

Since 2025

Pay as you go · Developer tools · Developers

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Replaces private data with tokens that can be restored while AI agents run, so outside models never see it, and keeps a signed record.

Since 2026

Security and passwords · Agencies

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An API that sets up an AI agent with its own email inbox, secret vault, calendar, signed identity and USDC wallet.

Since 2026

Developer tools · Developers

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An identity-aware proxy that guards private apps and services so staff and AI agents can reach them without a VPN.

Free plan · Security and passwords · Developers

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Write and version AI prompts, chain them into workflows and agents, test them on datasets and run them through an API.

Since 2026

Free plan · Developer tools · Developers

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Hosting that runs your apps from a git push or an AI agent request, with managed Postgres, Redis, domains and logs.

Since 2026

Free trial · Developer tools · Developers

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Builds a command line tool for your API from its docs, with binaries, install scripts and updates, so AI agents can use it.

Since 2026

Developer tools · Developers

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Puts apps built with AI coding agents online with a sign-in, database and backups, so teams can share and use them.

Since 2026

Free plan · Developer tools · Developers

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Markdown document editor where teams and AI agents like Claude and ChatGPT write together live, with presentations and blog publishing.

Since 2026

Free plan · Documents and e-signature · Developers

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Hosted environments that open apps like KiCad and FreeCAD for computer-use agents, with checkpoints and recovery.

Since 2026

Free plan · Developer tools · Developers

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Holds risky actions from unattended AI coding agents until someone approves them from a dashboard or phone, and logs each decision.

Since 2026

Free trial · Security and passwords · Developers

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Cloud browsers, logins and functions that let developers have AI agents carry out tasks on websites.

Since 2026

Free plan · Developer tools · Developers

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Lets AI assistants and developers grab clean web page screenshots from 227 countries through MCP, a CLI or a REST API.

Free plan · Developer tools · Agencies

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Lightweight headless browser built for scraping, automation and AI agents, available to install or as a hosted cloud.

Since 2025

Developer tools · Developers

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Checks each tool call from AI coding agents against your rules and blocks or rewrites risky ones before they run.

Since 2026

Subscription · Security and passwords · Developers

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Publish HTML or Markdown made by coding agents to a private link where your team can comment and see each version.

Since 2026

Free plan · Documents and e-signature · Agencies

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A kanban board that shows what each AI coding agent is doing and alerts you when one needs your input.

Since 2026

Free plan · Projects and tasks · Developers

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An API and MCP server with hundreds of exact math, text and conversion tools so AI agents stop guessing.

Since 2026

Free plan · Developer tools · Developers

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Lets coding agents publish HTML reports and dashboards to a shareable link where people and agents can comment.

Documents and e-signature · Developers

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Runs your app and tries to break each change your coding agent makes, then reports bugs with proof before release.

Since 2026

Developer tools · Developers