No moat. Still in business.

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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.

Free plan · Transactional email · Developers

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Data API for developers and analysts covering decades of company financials, ratios, earnings call transcripts and share prices.

Free plan · Developer tools · Developers

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WordPress plugin that lets Claude, Cursor and other MCP clients create posts, edit SEO and manage site content.

Free · 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.

Free plan · SEO

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Keeps documentation in GitHub repos in step with the code and shares that context with teammates and AI coding agents.

Since 2026

Free plan · Developer tools · Developers

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Add one script to your site for widgets like local pricing, exit offers and social proof to lift sales.

One-off payment · Marketing and social · Online sellers

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Lets agents model the cost, latency, error rates and resilience of infrastructure changes on AWS, GCP, Azure and others before deploying.

Developer tools · Developers

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A managed API for geocoding, address autocomplete and reverse lookups on open data, with a free monthly allowance.

Free plan · Developer tools · Developers

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Hosting that lets a coding agent, a ZIP upload or a REST call put a project online at an HTTPS address.

Free plan · Developer tools · Developers

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Upload an HTML page, folder, Markdown file or PDF and get a public HTTPS link in seconds, handy for AI-made pages.

Free plan · Website builders · Individuals and families

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Turns a document into a deck of concepts ordered by what to learn first, usable on the web or through an MCP server.

Free plan · Courses and learning · Individuals and families

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Tracks how a website shows up in Google and in AI chatbot answers, compares it with rivals and lists what to fix next.

Subscription · SEO

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An API that lets AI agents search the web and licensed data sources and get cited answers and charts back.

Since 2025

Developer tools · Developers

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Stores your preferences and notes once so any AI tool or agent can load them, with you approving each change.

Free plan · Notes and knowledge · Individuals and families

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Gives AI coding agents a way to phone you when they are stuck on a choice, and turns what you say back into text for them.

Developer tools · Developers

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

Free plan · Developer tools · Developers

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WordPress SEO plugin that an AI assistant can drive through MCP, with Search Console and GA4 data in the dashboard.

Free plan · SEO

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A Chrome extension that lets Claude Code, Cursor and other AI apps work in your signed-in browser tabs while you watch.

Since 2025

Developer tools · Developers

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Track your wine bottles, where they are stored, when to open them and your tasting notes, on your own server.

Free · Inventory and stock · Individuals and families

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Lets Apple app developers view their sales, rankings, ad spend and reviews on iPhone, iPad or Mac, even without a connection.

One-off payment · Website analytics · Developers

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Shared memory store that saves facts from one AI tool and recalls them in others like Claude, ChatGPT and Cursor.

Since 2026

Free · Developer tools · Developers

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Logs hours against clients and projects, then turns them into invoices with payment reminders, for freelancers and small teams.

Subscription · Invoicing and billing · Agencies

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Fills templates with data to produce PDFs, images and validated ZUGFeRD electronic invoices, from code, AI agents or no code tools.

Free plan · Invoicing and billing · Developers

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Feature flags for software teams to roll out changes to chosen users, watch error rates and roll back bad releases.

Free plan · Developer tools · Developers

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WordPress form builder with conditional logic, many integrations and AI form generation through MCP.

Free plan · Forms and surveys

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Task tracker for freelancers and small coding teams with epics, boards, release planning and time tracking on iPhone, Android and Mac.

Free · Projects and tasks · Freelancers

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Puts a folder of static files online with one command or through an AI agent, with built-in form collection.

Website builders · Individuals and families

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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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An MCP service that feeds coding agents like Claude Code and Cursor the right docs and code context while using fewer tokens.

Developer tools · Developers

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Lets teams edit, test and send transactional email templates without code deploys, with A/B tests and analytics.

Since 2014

Subscription · Transactional email · Software companies

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Throwaway test inboxes that pull out one-time codes and magic links, so developers can test login emails in CI.

Free plan · Developer tools · Developers

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Build a pre-launch waitlist page where signups earn rewards for referring friends, with emails and A/B tests.

Free plan · Marketing and social · Online sellers

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Desktop SQL client for Postgres, MySQL and SQLite with notebooks, a query builder and access for AI agents.

Free · Developer tools · Developers

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Builds sales and lead funnels inside WordPress and WooCommerce, with custom checkout pages, upsells and split tests.

Online shops · Online sellers

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Publishes static sites by drag and drop or through an AI agent, with custom domains, HTTPS and one-click version restore.

Free plan · Website builders · Individuals and families

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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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Email marketing app for sending newsletters, campaigns and automated sequences, built for teams that write together.

Since 2018

Free plan · Email marketing · Online sellers

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A WooCommerce plugin that lists your products on one page so you can filter and bulk edit prices, stock and other fields.

Free plan · Online shops · Online sellers

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Checks lists of up to 100,000 URLs in the cloud, retries links that block bots, and can run scheduled broken link checks.

Subscription · Uptime and monitoring

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Tracks errors in your web apps and passes stack traces to AI coding agents over MCP so developers can fix them faster.

Free plan · Uptime and monitoring · Developers

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API that fetches Google results and answers from ChatGPT, Gemini and others as clean data, for SEO tracking.

Subscription · SEO · Agencies

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Schedules timed tasks, watches that your jobs and sites stay up, and checks email addresses, for apps on serverless hosts and AI agents.

Free plan · Uptime and monitoring · Developers

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API that searches nine free stock photo sites by meaning with a single key; all images can be used without crediting anyone.

Free plan · Design and images · Creators and writers

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Copies chosen Jira projects and Confluence spaces into a local SQLite file so you can search offline and run SQL on your backlog.

Developer tools · Developers

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Gives coding agents a version-aware search index of open-source code, docs and package data through an API and MCP server.

Since 2025

Developer tools · Developers

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Lets coding agents and CI jobs upload screenshots and reports and post them in one updating comment on a GitHub pull request.

Since 2026

Free plan · Developer tools · Developers

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Converts any web page into compact markdown that coding agents can read, through a URL prefix, CLI or API.

Free plan · Developer tools · 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