Free tier

Commerce Layer

Commerce Layer is an API-first commerce platform that provides checkout, order management, promotions, and point-of-sale capabilities through a single backend. The product exposes more than 400 API en...

Compass

Compass is Atlassian’s internal developer platform for cataloging software components, connecting teams, and improving developer experience across the software lifecycle.

Composio

Composio is an integration and agent execution platform that helps teams connect AI agents to external apps and tools. It provides managed authentication, just-in-time tool calls, sandboxed execution, and support for parallel workflows across more than 1,000 applications.

Concord

Concord is a privacy and compliance platform with two main modules: Concord Privacy for consent management, privacy requests, data mapping, and policy management, and Concord Trust for public trust ce...

ConfigCat

ConfigCat is a hosted feature flag and remote configuration service for teams. Applications use its SDKs to download config JSON from the ConfigCat CDN and evaluate feature flags locally from cache, w...

Confluence is Atlassian’s AI-powered workspace for knowledge and collaboration. It gives teams a central place to create, organize, and share documentation, project information, and team knowledge in one connected environment.

ConnectyCube

ConnectyCube provides chat and calling SDKs for developers building messaging, voice, and video features into applications. The platform includes SDKs and APIs for Flutter, React Native, Web, Cordova,...

Container Registry

Container Registry is a Harbor-based container image management service for storing, managing, and distributing OCI artifacts. The service is built around Harbor and is offered as a managed registry or as a hardened Harbor distribution for self-hosted deployments.

Contentful

Contentful is a headless content management platform that stores structured content in spaces and exposes it through APIs and developer tools. The pricing page lists a Free Platform plan with 10 users...

Contentsquare is an experience analytics platform for websites and apps. It handles session replay, heatmaps, surveys, funnel analysis, error monitoring, performance monitoring, and web analytics. Sen...

Convex

Convex is a backend platform for building applications in TypeScript. It combines a reactive database, file storage, text search, vector search, auth, crons, webhooks, and Node.js actions in a single ...

Conveyor

Conveyor is a tunneling service for remote access to local web servers such as IIS Express. It exposes a local Visual Studio web application through a public URL so the app can be tested from other devices on the LAN or over the internet without changing IIS Express configuration.

CookieFirst

CookieFirst is a cookie consent management platform for websites. It provides cookie banners, consent management panels, cookie scanning, and a cookie policy generator, with integrations for Google Tag Manager, Google Consent Mode v2, and Microsoft Consent Mode UET/Ads.

Corgea

Corgea is an application security platform that scans code, dependencies, infrastructure as code, containers, and secrets from a single workflow. It includes AI SAST, dependency scanning, IaC scanning, container scanning, secrets detection, and logic/auth scanning in the Free plan.

Cosmic is an AI-powered headless CMS that exposes content management through a hosted dashboard, REST API, SDKs, CLI tools, and agent workflows. The platform supports content objects, media, buckets, team collaboration, and deployment-oriented workflows for building and shipping web apps.

Couchbase Capella is a fully managed, multicloud NoSQL database-as-a-service. It provides SQL++ query support, key-value access, search, mobile app services, RBAC, scopes and collections, and managed backups across cloud regions.

Country-State-City Microservice and API

Country-State-City Microservice and API is a web API for retrieving geographical data such as countries, states, cities, postal codes, regions, and provinces. The landing page lists endpoints for gett...

Coupler.io

Coupler.io is a no-code data integration platform that connects 400+ data sources to destinations such as Google Sheets, Microsoft Excel, Looker Studio, BigQuery, Snowflake, PostgreSQL, Redshift, JSON...

Courier

Courier is a customer messaging platform for developers that provides APIs, SDKs, a CLI, and an MCP server for sending notifications and orchestrating lifecycle journeys across email, SMS, push, Slack...

Coveralls

Coveralls is a code coverage reporting service that ingests coverage data from CI runs and shows repository coverage history, file-level reports, line-by-line coverage, repository overviews, coverage ...

Coverity Scan is a static analysis service for registered open source projects. It analyzes submitted builds and source code to find defects and vulnerabilities across Java, C/C++, C#, JavaScript, Ruby, and Python projects, then presents the results for developer triage and remediation.

CraftMyPDF

CraftMyPDF is a PDF generation API and template editor that creates PDFs and images from reusable templates and JSON data. It supports drag-and-drop template design, JavaScript-style expressions, fill...

CrateDB

CrateDB is a distributed SQL database for live operational data. It supports time-series, JSON, full-text, vector, geospatial, and structured data in one engine, with standard SQL for joins, aggregations, and window functions.

cron-job.org

cron-job.org is a hosted cron job scheduler that executes HTTP requests for websites and scripts at configured intervals, from once per minute up to once per year. It supports custom request methods, ...

Cronhooks

Cronhooks is a webhook scheduling service that triggers HTTP requests at specific dates and times or on recurring intervals using cron expressions. It exposes a REST API for creating ad-hoc and recurring schedules, supports timezone-aware execution, and sends failure alerts by email or Slack.

Cronitor

Cronitor is a monitoring platform built for developers and operations teams that need reliable visibility into jobs, websites, APIs, and infrastructure events. It combines cron job monitoring, uptime checks, heartbeat tracking, status pages, and real user monitoring in a single product.

Crosswork is project management software for teams. It provides multiple work views, including list, gallery, and kanban, along with filters, grouping, sorting, tags, subtasks, custom types, statuses, workflows, reports, analytics, and task/project cloning.

Crowdin

Crowdin is an AI-powered localization platform for managing translation workflows across software, mobile apps, websites, games, marketing content, and documentation. It connects with source control, ...

Crystallize is a headless commerce platform that combines product information management, content management, and commerce in one GraphQL-based system. The platform exposes a GraphQL API, MCP support ...

Cube

Cube is an analytics platform that provides a universal semantic layer for BI, embedded analytics, spreadsheets, and agentic analytics workflows. It connects to data sources, defines governed semantic...

CurlHub.io

CurlHub is a no-install debugger for API requests. It lets developers inspect API traffic and create a simple request bin without installing local tooling.

Currency Api

Currency Api is a currency conversion and exchange rate API for developers. It provides live rates through a REST endpoint, with JSON or XML responses for 166 supported currencies, cryptocurrencies, and metals.

Currencyapi.com

Currencyapi.com provides a JSON REST API for current and historical foreign exchange rates. It exposes endpoints for latest rates, historical rates, and currency conversion data, with examples shown for cURL, PHP, Node.js, and Java.

CurrencyBeacon is a REST API for live and historical currency exchange rates, currency conversion, and blockchain-related data. The service covers 170+ fiat currencies, over 200 world currencies, and 6,000 cryptocurrencies, with historical rates available back to 1995.

CurrencyFreaks

CurrencyFreaks provides a REST API for currency exchange rates, currency conversion, historical forex data, and currency fluctuation data in JSON and XML formats. The service supports 1,025 currencies...

Currencylayer

Currencylayer is a JSON currency exchange rates API that provides real-time, historical, and conversion endpoints for 168 world currencies and precious metals. It supports live, historical, and conver...

CustomJS

CustomJS is a developer tool for running JavaScript, hosting HTML pages and forms, generating PDFs, and capturing screenshots through an HTTP API and integrations such as Make.com and n8n.

Cypress

Cypress is a browser-based testing platform for JavaScript applications. It provides an open-source Cypress App for writing, running, and debugging end-to-end and component tests directly in the brows...

Daestro

Daestro is a container orchestrator for batch jobs and cron jobs. It exposes a job submit API for running workloads from an application, and it can execute jobs on cloud providers or on self-hosted Docker-based compute.

dAppling

dAppling is a decentralized frontend deployment platform for web3 applications. It connects to a GitHub repository, autodetects the frontend framework, and builds and deploys on every push. The servic...

Data Fetcher

Data Fetcher is an Airtable extension that connects external APIs and remote files to Airtable without code. It supports importing data from JSON, CSV, XML, RSS, Google Sheets, and common SaaS integrations, then mapping and transforming the response into Airtable records.

Data Miner

Data Miner is a browser extension for Google Chrome and Microsoft Edge that extracts data from web pages into CSV or Microsoft Excel files. It supports one-click scraping from public recipes, custom extraction rules, pagination, crawl jobs, and form filling automation.

Datadog

Datadog is a cloud monitoring and security platform that collects metrics, traces, logs, events, and other telemetry from infrastructure, applications, databases, containers, serverless workloads, and...

Dataimporter

Dataimporter is an intelligent import and data movement platform for Salesforce. It helps teams load, migrate, transform, and automate data workflows without relying on manual spreadsheet handling or repetitive admin work.

Datelist

Datelist is an online appointment scheduling system that lets customers book time slots from a website or social networks. It provides a widget for embedding on a site, a dedicated booking page, calen...

DatoCMS

DatoCMS is a headless CMS that exposes content through APIs for websites and other digital products. The pricing page states a free plan with 2 editors, 300 records, 10GB of traffic, and 100k API calls per month, with no overages allowed.

Datree

Datree is a Kubernetes policy enforcement tool that blocks deployments of misconfigured resources through an admission webhook. It checks new configuration changes against built-in policies and can also scan locally before deployment so sensitive data stays inside the environment.

DB Designer

DB Designer is an online database schema design and modeling tool. It lets users create ER diagrams in the browser, import existing databases, and generate SQL scripts for MySQL, MSSQL, PostgreSQL, Oracle, and SQLite.

DB-IP IP Geolocation API

DB-IP provides an IP geolocation API that returns location and network intelligence data for an IP address. The free API endpoint maps an IP to country, state or province, and city, and the sample response also includes continent codes and names.

Dead Man's Snitch is a cron job monitoring service that checks whether scheduled tasks run on time. It provides a unique URL for each job, and the job is marked as monitored when the URL is requested by curl, a browser, or another HTTP client.

Debug Mail

Debug Mail is a hosted fake SMTP server for testing application email flows. Developers point their app to app.debugmail.io and use the project login, password, and port shown in the dashboard to capture outgoing messages instead of delivering them to real recipients.

DeepAR

DeepAR is an SDK for adding augmented reality features to apps on iOS, Android, HTML5, and macOS. It supports face filters, virtual try-on, hair and background segmentation, and emotion detection, and includes demo projects and effect templates for common AR use cases.

DeepL

DeepL is a language AI platform that provides text translation, document translation, speech translation, writing assistance, and an API for integrating translation into applications. The platform inc...

Deepnote is a collaborative analytics and data science notebook platform that runs notebooks in the cloud and supports Python, SQL, charts, dashboards, data apps, ETL/ELT pipelines, scheduling, version history, and integrations with external data sources.

DeepScan

DeepScan is a static analysis service for JavaScript and TypeScript code. It inspects code through semantic analysis and data-flow tracking to find runtime errors, code smells, and quality issues that...

Degoo Cloud Storage

Degoo Cloud Storage is a cloud backup and file storage service with a web app and mobile apps. The page describes AI-based photo discovery, encrypted communication, zero-knowledge encryption, and real-time file sharing with end-to-end encryption.

Deno Deploy

Deno Deploy is a serverless hosting platform for JavaScript and TypeScript applications. It runs deployments on lightweight V8 isolates and supports frameworks and runtimes including Fresh, Vue, Hono,...

DeployHQ

DeployHQ is a deployment automation service that connects to GitHub, GitLab, Bitbucket, or self-hosted repositories and deploys code to servers, VPS instances, static hosting, FTP/SFTP targets, and cl...

Deployment

Deployment is an AWS-native deployment platform that helps teams ship AI-written code and application changes to production with confidence. It runs deployments in the customer’s AWS account and supports previews, automated tests, and approval workflows before changes are released.

DevCycle

DevCycle is a feature flag and feature management platform with OpenFeature-native support. It provides SDKs, APIs, a CLI, and a web dashboard for creating, targeting, rolling out, and monitoring flags across client-side, server-side, web, and mobile applications.