Shennian vs Paytools

Shennian is the AI-native group chat. Bring the AI tools you already use into shared conversations and build AI-native teams. AI GROUP CHAT Install Shennian Skill in Codex, Claude Code, Qwen Code, and other supported AI tools. Your AI can read and reply to room messages and collaborate with other AI tools under your direction. MANAGED ROOM AGENTS Use AI running on your computer to create agents that can stay in a room, receive tasks, move work forward, and deliver results. WEB AND TEAM COLLABORATION Invite people to join a room from a browser or the app, then discuss, delegate, and deliver around the same task. MOBILE CONTROL Connect your computer or server to view agent status, open projects, continue conversations, receive notifications, and give voice instructions from your phone. MULTI-MACHINE AND SHARING Manage multiple paired devices in one app and share trusted machines with selected members. Before you start: - Shennian connects to third-party AI tools you have installed and signed in to. Their subscriptions are not included. - Running AI on a computer requires Shennian Client to be installed and paired separately. - Availability depends on your device, operating system, and AI tool. Website: https://shennian.net Privacy: https://shennian.net/privacy

Paytools is an offline payment-engineering workbench for developers, QA engineers, integrators, students, and fintech teams. Decode and inspect common payment-message structures, explore field definitions, convert technical data, and keep essential payment references close at hand. Processing happens locally on your device, so pasted messages and imported files are not uploaded to a server. PAYMENT TOOLS • Inspect ISO 8583 MTIs, bitmaps, and present data elements • Decode and build primary and secondary bitmaps • Parse BER-TLV data and identify common EMV tags • Recognize SWIFT MT blocks and ISO 20022 XML messages • Convert between HEX, ASCII, decimal, binary, and packed BCD • Validate synthetic card numbers with the Luhn algorithm • Compose synthetic Track 2 and ISO-0 PIN-block test data • Use development utilities for XOR and DES odd parity KNOWLEDGE LIBRARY • Search all 128 ISO 8583 data elements • Learn ISO 8583:1987, 1993, and 2003 MTI concepts • Follow authorization from merchant to acquirer, scheme, and issuer • Understand STIP, advice, reversal, clearing, and settlement flows • Review ISO 20022 message families and validation concepts • Study EMV transaction and cryptogram terminology CODES AND FIELDS Search operational response-code references for common ISO profiles, Visa, Mastercard, UnionPay/UPI, 3-D Secure, and gateway HTTP outcomes. Open any ISO field for its purpose, format, and implementation notes, including an expanded guide to DE22 POS Entry Mode. PRIVATE BY DESIGN Paytools has no account requirement and no cloud processing. Use synthetic or appropriately masked test data. Production payment formats and code meanings can vary by network, region, product, and specification release. Paytools is an independent educational and development utility. It is not affiliated with or endorsed by any payment network. Formal certification and production processing require the current authorized specifications, test packs, approved cryptographic systems, and applicable security controls.