No moat. Still in business.

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Excel add-in for querying tables with SQL, scripting workbooks in C# and building custom Excel functions.

Since 2016

Free plan · Data and spreadsheets · Developers

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Generates searchable API docs from C++ code and Markdown pages, with optional hosting, for C++ teams.

Since 2021

Developer tools · Developers

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Mac app that runs your own AI prompts on selected text, screenshots or voice from any app by keyboard shortcut.

Since 2023

One-off payment · Focus and productivity · Individuals and families

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Kanban board for developers that hands tasks and their context to coding agents through MCP and VS Code.

Since 2026

Projects and tasks · Developers

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Open source uptime checks, alerts and public status pages that you or an AI agent can manage, with no charge per monitor.

Free plan · Uptime and monitoring · Developers

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Saves what you work out in AI chats as searchable documents that Claude, ChatGPT, Cursor and other MCP tools can read later.

Since 2026

Free plan · Notes and knowledge · Developers

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Turns a short product idea into specs such as a PRD, database design, API docs and a sprint plan for development teams.

Free plan · Documents and e-signature · Developers

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Checks each AI agent tool call against policy and asks a person to approve the exact payload before risky actions.

Since 2026

Security and passwords · Developers

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Draw system or process diagrams that viewers click through one step at a time, then share or embed them on any site.

Since 2026

Free plan · Design and images · Developers

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Keyword API for AI agents returning search volume, cost per click and competition in more than 50 countries, with a free daily allowance.

Since 2026

Free plan · SEO · Agencies

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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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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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Lets developers and their coding agents see the DOM, console and network of web pages on real iPhones and Android phones.

Since 2020

Free plan · Developer tools · Developers

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An open-source AI coding agent that plans and makes code changes, used from your editor, a desktop app or the terminal.

Developer tools · Developers

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Gives AI assistants and agents authenticated access to over 1,500 apps so they can take actions, with a managed MCP gateway.

Pay as you go · Developer tools · Developers

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A Mac app that gives programmers offline search across 200+ API doc sets, cheat sheets and their own code snippets.

Developer tools · Developers

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A cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

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An API that returns live Amazon product details, prices, reviews and sales estimates for developers building shopping or seller tools.

Free plan · Developer tools · Online sellers

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One subscription to a catalogue of ready APIs for documents, verification, media and AI tasks, aimed at developers building products.

Since 2023

Free plan · Developer tools · Developers

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Lets Claude, Codex or other AI agents tap, type and read the screen on your iPhone or Android phone, or on a rented cloud phone.

Free plan · Developer tools · Individuals and families

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Lets AI agents upload single-file HTML reports and dashboards and share them as clean links instead of raw code.

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.

Free plan · Developer tools · Developers

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A shared memory store that lets a team's AI assistants save and reuse knowledge across sessions and tools.

Since 2026

Free plan · Developer tools · Developers

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Deploys an app your coding agent built onto one dedicated managed machine with database, cache and backups for a flat monthly price.

Since 2026

Free plan · Developer tools · Developers

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Keeps an ML project's decisions, evidence and next steps in a brief that Claude, ChatGPT or Cursor can load and update.

Since 2026

Free plan · Developer tools · Developers

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Lets a team's AI coding agents pass work to each other over MCP and pings a person in Slack when stuck.

Since 2026

Free plan · Developer tools · Developers

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Native HTTP debugging proxy for capturing, decrypting and mocking web and mobile app traffic, with an MCP server for AI agents.

Developer tools · Developers

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Watches the commands and tool calls AI agents run on your machines, blocks ones not allowed and keeps a record.

Since 2026

Free plan · Security and passwords · Developers

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Hosting that deploys apps from a git push or a coding agent, with databases, domains, logs and per-minute billing.

Since 2026

Pay as you go · Developer tools · Agencies

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Write, test and export MCP tools and AI agents in the browser, with Python and SQL sandboxes and no install.

Free · Developer tools · Developers

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A hosted wiki that Claude, ChatGPT, Cursor and other AI agents share through MCP, so people can see and edit what the agents know.

Free plan · Developer tools · Developers

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Watches what an AI coding agent writes and flags code that duplicates or breaks your project's existing patterns.

Since 2026

Free plan · Developer tools · Developers

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A desktop workspace and agent-written wiki for people using Claude Code or Codex, keeping tasks, docs and decisions in one place.

Since 2025

Free plan · Developer tools · Developers

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Mac app that runs coding agents per project on your own machine, with an iPhone app to check and steer them.

Since 2026

Free plan · Developer tools · Developers

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An API and MCP server that returns local shows, markets and events as JSON, for developers building apps or AI agents.

Since 2026

Free plan · Developer tools · Developers

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A ranked task queue that Claude Code, Cursor and other MCP agents pull work from and report back to.

Since 2026

Free · Projects and tasks · Developers

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An offline desktop app for designing, testing and documenting APIs as Markdown files kept in your Git repo.

Since 2025

Developer tools · Developers

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Hosted service that gives each AI agent its own inbox, phone number, storage and 2FA on domains kept for your project.

Since 2026

Subscription · Developer tools · Developers

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One API with a single schema for pulling profiles, posts and engagement data from dozens of social networks, paid per credit.

Since 2026

Pay as you go · Developer tools · Developers

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Self-hosted tool to search, tail and chart logs and set alerts over data already in ClickHouse or VictoriaLogs.

Free · Uptime and monitoring · Developers

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Lets coding agents like Claude Code and Cursor create images for a project that match its brand colours and style.

Since 2026

Subscription · Design and images · Developers

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Cloud iOS, Android and TV devices that coding agents can build on, control and test through MCP.

Free plan · Developer tools · Developers

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Collects Playwright test runs from CI so teams can debug failures, spot flaky tests and track suite health.

Since 2026

Subscription · Developer tools · Developers

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Hosts agents, small APIs and internal tools with sandboxes, secrets, environments and many app connections, run from your editor.

Since 2026

Free plan · Developer tools · Developers

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A hosted portal that joins your MCP servers into one endpoint with OAuth, so AI agents load far fewer tool definitions.

Since 2026

Free plan · Developer tools · Developers

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Gives coding agents like Claude Code, Cursor and Codex a shared project memory that carries over between sessions and tools.

Since 2026

Free plan · Developer tools · Developers

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A hosted database that AI assistants share over MCP, keeping validated records and a history of who changed what.

Since 2026

Free plan · Developer tools · Developers

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Creates realistic linked test data for SQL and MongoDB databases from a plain English description.

Free plan · Developer tools · Developers