Seizn is a platform designed to manage and reconcile narrative canon, character facts, and timelines for authors, developers, and studios working with complex stories or AI-driven agents. It addresses the challenge of maintaining consistency across characters, events, and rules in large-scale fiction or game projects by providing a structured ledger that tracks and verifies facts, identifies conflicts, and supports revision workflows.
The tool offers multiple modes of use tailored to different audiences. Writers can use a browser-based memory dashboard to organize characters, world details, and timelines, ensuring continuity across long works of fiction. Developers have access to a REST API and MCP server, enabling the integration of Seizn’s memory infrastructure into custom writing tools, plugins, or memory-aware agents. A desktop application with offline-first memory and local file integration is planned for release in Q3 2026.
Seizn supports importing manuscripts and world files in formats such as DOCX, RTF, ODT, plain text, and Google Docs. It parses these documents to extract structured information about characters, scenes, and rules, which are then recorded in a canonical ledger. The platform allows users to review each fact, accepting, queuing, or flagging conflicts, with every revision logged and replayable. When writing or revising scenes, Seizn provides live checks for contradictions, citing the specific rule or character fact in question and categorizing conflicts by severity—critical, major, or minor. Users can simulate the impact of narrative changes on continuity, with token-level analysis and risk scoring for proposed edits.
The service is available through tiered subscription plans: Indie ($39/month) for solo authors, Pro ($149/month) for professionals and small studios, and Studio ($499/month) for larger teams. Each plan includes a defined token limit and project capacity, with a 30-day trial period and annual discounts. Seizn supports BYOK (bring your own key) for integration with Anthropic and other AI models, and emphasizes privacy by ensuring user manuscripts are not used to train public models. The platform is operated by Litheon LLC and enforces strict content safety rules.
seizn-memory sits in PulseGate's Frameworks & SDKs category. It focuses on providing game developers with middleware to add memory and context to AI NPCs using Python. seizn-memory is an open-source project aimed at game developers and AI researchers. The project is open source (MIT). It runs on the web and the command line, and it can be self-hosted.
Behind seizn-memory is LitheonHQ, and the product first shipped in 2026. Across PulseGate's embedding index, seizn-memory has few near neighbours, marking it as relatively distinct. Among its 5 catalogued features are AI NPC memory, Python SDK, and game integration.
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