No moat. Still in business.

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An API that returns live flight prices and airline booking links for developers building travel search or price alerts.

Since 2015

Free plan · Developer tools · Developers

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Library of recorded iOS app screens, onboarding and paywalls that app teams and their AI agents can search.

Since 2018

Design and images · Developers

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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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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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Logs errors from .NET and JavaScript apps, checks site uptime and scheduled jobs, and notifies your team in chat or email.

Free trial · Uptime and monitoring · Developers

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Lets software teams add guided tours, setup checklists, NPS surveys and banners inside their app, self-hosted or hosted.

Customer support · Software companies

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Checks single addresses or whole lists for syntax, mail server and mailbox problems, by upload or API, with an email finder too.

Free plan · Email marketing

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Send documents out for e-signature and pay only for the ones that get signed, with three free each month.

Since 2024

Free plan · Documents and e-signature

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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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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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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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Links your bank accounts so you can ask Claude, ChatGPT or other AI tools about your spending and balances.

Since 2026

Subscription · Money and budgeting · Individuals and families

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APIs and an MCP server that fetch link previews, page metadata, screenshots and clean Markdown from any URL.

Since 2014

Free plan · Developer tools · 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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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 an OpenAPI file into hosted API docs, client SDKs and an MCP server for software companies.

Developer tools · Developers

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Persistent cloud virtual machines with up to 60 vCPUs and optional GPUs, which coding agents drive via CLI or MCP, charged per minute.

Since 2026

Pay as you go · Developer tools · Developers

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Paste a website address to get its colour palette, or call an API for a site's logo, colours and fonts.

Free plan · Design and images · Developers

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One MCP server that gives AI agents hundreds of sourced data streams like weather, markets and releases, with full history.

Developer tools · Developers

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Lets your AI assistant read and edit Ghost, WordPress, Shopify or Webflow content, with previews and undo for each publish.

Free plan · Website builders · Agencies

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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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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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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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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 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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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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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.

Free plan · Developer tools · Developers

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A hosted MCP server and REST API that gives Claude, ChatGPT or Cursor your Search Console data, SERPs and keyword volumes.

Free plan · SEO

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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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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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Deploys and runs code written by AI coding agents, including apps, APIs, databases and agents, from inside your editor.

Free plan · Developer tools · Developers

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Catches missed cron runs, stalled background jobs and site downtime through heartbeat pings, with public status pages.

Free plan · Uptime and monitoring · Developers

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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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Gives AI agents email inboxes of their own to get mail, reply and keep files, with spam filtering, via API, MCP or CLI.

Free plan · Developer tools · Developers

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Creates secured REST APIs from existing databases so apps and AI tools can read data without direct database access.

Developer tools · Developers

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Run FFmpeg commands in the cloud through an API to convert, trim, caption and watermark video without installing anything.

Since 2025

Free plan · Video and audio · Developers

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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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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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An API that gathers sourced, deduplicated web evidence for AI agents and says when there is not enough to answer.

Subscription · Developer tools · Developers

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Generates and hosts small business websites you can edit through Claude or ChatGPT, sold once for freelancers and agencies.

Since 2025

One-off payment · Website builders · Agencies

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Lets security teams check IP addresses against honeypot data and pull attacker feeds into their SIEM or AI assistant.

Free plan · Security and passwords · 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.

Free plan · Transactional email · Developers

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Turns PDFs, Office files, scans and web pages into clean Markdown for use with AI chat tools, via web, API or MCP.

Free plan · Documents and e-signature

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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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Meters usage, tracks costs per customer and bills users with credits or usage pricing, for teams building AI apps.

Pay as you go · Invoicing and billing · Developers

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Send files from scripts, AI agents or a browser as short links with expiry dates, passwords and download caps.

Since 2026

Free plan · Developer tools · Creators and writers

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A hosted graph backend that AI coding agents can query with typed JSON instead of SQL, reachable over MCP.

Since 2026

Free plan · Developer tools · Developers

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Rents short-lived cloud Macs with Xcode to AI coding agents so developers can build and ship iOS apps without owning a Mac.

Since 2026

Pay as you go · Developer tools · Developers