Compare Art Blocks vs. stampd.io

Chainstack's APIs and software are used by thousands of businesses, large and small, to build, scale, and maintain blockchain applications. To ensure your security and control, Chainstack's APIs offer secure node connections and key security best practices. Invite other members to join your network and deploy their infrastructure using simple network management tools. You can build and deploy the blockchain protocol that suits your needs. The protocol will never be updated or modified again. Chainstack's managed services for blockchain make it easy to launch, join, and scale decentralized networks. You can now safely experiment with enterprise-grade tools and services and then run production. Continuously monitor and provision your resources.

LeaseAccounting.app is a self-serve IFRS 16 and FRS 102 lease accounting platform built for finance teams who want audit-ready compliance without spreadsheets, implementation consultants, or six-figure setup costs. Made by ZenTreasury Oy in Helsinki, Finland with EU-only data hosting. Designed for SMEs reporting under IFRS 16 or FRS 102 (UK GAAP), typically managing 5 to 50 leases. The platform generates complete lease schedules, journal entries, modifications, remeasurements, terminations, and one-click audit evidence packs from any lease contract. AI-assisted contract extraction reads your PDFs and proposes lease terms with confidence scoring; you approve, and the deterministic calculation engine produces the numbers. Same inputs, same outputs, every time. Zen AI is advisory only and never touches a calculation. Other features: Discount Rate Advisor pulls reference rates from central bank sources and drafts a rate memo for review; continuous compliance monitoring flags indexations due, expiring leases, and overdue reassessments; multi-entity bookkeeping from day one; auditor portal access with activity logging (coming soon); journal export to SAP, Oracle, Dynamics, and NetSuite formats; Azure AD / Entra ID SSO with JIT provisioning. Pricing: free tier covers 2 leases with no credit card required. Paid plans start at €149 per month with no per-seat pricing and generous team access included on every tier. Differentiation: built IFRS-first (not ASC 842-first), EU-hosted, fully implemented FRS 102, and self-serve onboarding. The trusted alternative to spreadsheet-based compliance and consultant-heavy enterprise lease tools.

Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. With Control D you can: block malicious threats, block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more), redirect traffic using transparent proxies and gain visibility on network events and usage patterns, with client level granularity. Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.

Okyline is an Executable Data Design (EDD) platform focused on executable validation contracts and operational data quality control. Rather than managing separate specifications, validation code, tests, and monitoring dashboards, Okyline centralizes validation and quality supervision around a single readable executable contract acting as the operational reference for enterprise data flows. The same contract powers deterministic validation, advanced business invariant checks, multi-format execution, data quality gates, and historical quality analytics across APIs, events, files, LLM structured outputs, and distributed operational systems. Contracts are designed directly from annotated sample data, making validation rules immediately understandable for developers, architects, QA teams, and business analysts. The Community Edition includes the public specification, a free Java runtime engine, a Claude AI assistant for contract generation, and an online studio supporting executable JSON validation contracts and JSON Schema transpilation. The Enterprise Edition adds native validation for JSONL, XML, CSV, FIXED, and EDI flows together with operational quality dashboards and data quality gates, without requiring databases or centralized infrastructure.erprise Edition supports direct validation of JSON, JSONL, XML, CSV, FIXED, and EDI flows with operational quality dashboards and analytics, without databases.

CEX.IO is a licensed and versatile cryptocurrency exchange that was founded in 2013 and has since established offices in various countries, including the UK, US, Ukraine, Cyprus, and Gibraltar. With a user base exceeding 3 million worldwide, CEX.IO ensures dependable services through cold storage of cryptocurrencies, robust financial health, top-notch security measures, and adherence to KYC/AML regulations. Notably, CEX.IO was among the pioneer platforms to facilitate easy fiat-to-crypto transactions by allowing customers to make payments via credit cards and bank transfers. Presently, the exchange offers a diverse range of trading options for cryptocurrencies such as Bitcoin, Bitcoin Cash, Ethereum, Ripple, Stellar, Litecoin, and Tron, among others, which can be traded for fiat currencies like USD, EUR, GBP, and RUB. Understanding the importance of accessibility, CEX.IO has developed trading capabilities through its website and mobile applications for both iOS and Android, as well as through WebSocket and REST API to cater to different user preferences. This commitment to adaptability ensures that clients can engage in trading activities anytime and anywhere.

Vaiz is a work management platform built for small and mid-sized teams — startups, agencies, and growing SaaS companies — who want the structure of tools like Jira, Asana, or ClickUp without the complexity or price tag. It centralizes task management, document sharing, and team coordination in one lightweight workspace, so teams of 5-50 people can get started in minutes, not weeks. Vaiz offers customizable task boards (lists, Kanban, Gantt charts), an AI assistant that drafts, summarizes, and analyzes work, and built-in automation that handles routine tasks without extra setup. Integrations with tools like Slack, GitHub, and Google Workspace keep teams aligned without switching between apps. Vaiz scales with you, from a 5-person startup to a growing team, without forcing you to re-learn the tool as you grow."

3Q is an API-first video infrastructure for developers and engineering teams who want direct control over their media backend. A REST video API and native player SDKs give you programmatic access to hosting, ingestion, encoding, live streaming, video-on-demand, and delivery, so you can build video portals, streaming apps, or OTT backends on a single European platform. The stack is transparent by design. 3Q supports adaptive bitrate streaming over HLS and DASH with mixed HEVC and AVC codecs and automatic Live-to-VoD. Delivery runs over a proprietary global CDN, encryption, and HTTP/2 over TLS 1.3. The Cookie- and Consent-free HTML5 Video Player is barrier-free in accordance with WCAG 2.1/BITV 2.0 and needs no consent layer. Video AI exposes speech-to-text transcription, automatic subtitles, translation, and chapter markers through the same API, and integration fits your existing pipeline and video workflows. What sets 3Q apart is ownership. 3Q runs on its own independent European video infrastructure, so your data stays in the EU and under German jurisdiction. 3Q is GDPR-compliant and all processes are ISO/IEC 27001 certified, with modular pay-as-you-go pricing and 24/7 support from real video experts.

Werx delivers powerful construction management tools at a price contractors love—starting at just $49/month. Built for small to midsized businesses, Werx simplifies your workflow with features like flexible estimating, AIA-Style billing, QuickBooks syncing, and labor tracking. Speed up payments with Stripe-powered online billing. Try Werx free for 30 days and see the difference! Tailored for contractors of all trades, Werx helps you save time, reduce stress, and boost profits. From managing schedules to tracking time in the field and creating polished invoices, Werx brings everything together in one easy-to-use platform. Affordable, reliable, and built to help your business grow—Werx is the smart choice for contractors.

IONOS Cloud Object Storage is a flexible storage solution tailored for the management and retrieval of extensive volumes of unstructured data within cloud platforms. Fully compliant with the S3 API standard, it empowers developers and IT professionals to utilize existing S3 clients and tools for bucket and object management, seamlessly integrating into modern cloud-native applications and systems. This service allows businesses to store nearly limitless amounts of static or backup data without the complexities of traditional storage management. Engineered for both reliability and high availability, it ensures data remains accessible and secure through redundant storage mechanisms across multiple nodes, safeguarding against potential infrastructure failures. Ideal for a variety of use cases, it supports the storage of backups, archives, and disaster recovery snapshots, while also efficiently managing substantial datasets that are essential for analytics, machine learning, or digital content initiatives. Furthermore, its scalability makes it an excellent choice for organizations anticipating growth or needing to adapt quickly to changing data storage requirements.

Ethena is an enterprise compliance management platform that leverages AI-powered agents to streamline compliance, ethics, and risk management activities across organizations. The platform includes specialized agents for training development, disclosure management, policy governance, and third-party risk assessment, helping compliance teams automate routine processes while maintaining full oversight. Instead of relying on generic compliance programs, Ethena uses real organizational risk data, disclosures, and policies to create targeted and relevant compliance training. The platform enables compliance professionals to review, approve, and refine AI-generated recommendations before implementation, ensuring accountability and governance remain intact. Additional capabilities include ethics hotlines, case management systems, phishing simulations, policy distribution, and compliance reporting tools. Organizations can track incidents, manage investigations, and maintain comprehensive audit trails through a centralized platform. Multilingual support and automated translations help global businesses deliver consistent compliance programs across regions and workforces. Ethena also offers a large library of compliance training content that can be customized to reflect company-specific policies and requirements. By combining intelligent automation, employee education, risk management, and compliance oversight, Ethena helps organizations build stronger and more scalable compliance programs.