# Seyfert: A Type-Safe TypeScript Framework for Discord Bots > Seyfert is an MIT-licensed TypeScript framework for Discord bot development that was written from scratch, emphasizing low RAM usage, full type safety, big cache control, and support for Node.js, Deno, and Bun runtimes. **tiramisulabs/seyfert** — the black magic Discord framework . There are many reasons to use Seyfert, but they dont all fit in this tiny readme, so here is a list of the most awesome reasons! - Repository: https://github.com/tiramisulabs/seyfert - Website: https://seyfert.dev - Stars: 320 · Forks: 46 - Language: TypeScript - License: MIT - Published: 2026-08-04 · Updated: 2026-08-18 · Language: en - Canonical page: https://hysenlabs.com/projects/tiramisulabs-seyfert ## What Seyfert Is and Who It Is For Seyfert is a TypeScript framework for building Discord bots. It provides an interface to the Discord API, cache management, and developer tooling. The README positions it as the "ultimate Discord framework" built for engineers who need scalable code, big cache control, and a polished development experience. The primary audience is TypeScript developers building Discord bots who have specific requirements around memory consumption, type safety, or runtime flexibility. Developers who have worked with discord.js will find familiar territory in the overall structure (interacting with the Discord API, registering commands, handling events) but a different design philosophy at the implementation level. The README's list of reasons to use Seyfert is short and direct: low RAM usage, latest Discord API features, developer experience, type safety, and the fact that the entire framework was written from scratch rather than forked from another project. The "written from scratch" point matters architecturally because it means the codebase does not carry forward design decisions inherited from older JavaScript bot libraries. Seyfert is published to npm as the seyfert package. The current version in package.json is 5.1.0. ## Low RAM Usage and Cache Control The README lists low RAM usage as the first feature. The package.json includes a benchmark script: pnpm run bench:limited-cache, which runs node --expose-gc ./benchmarks/limited-cache.mjs. The benchmarks directory exists in the repository, indicating that the RAM claim is something the project tests rather than simply asserts. The README calls out "big cache control" as a separate feature. Cache control in a Discord bot framework means the ability to configure what bot state is stored in memory: guilds, channels, users, roles, messages. A framework with coarse cache control stores everything and relies on the application to prune what it does not need. Seyfert's positioning suggests finer-grained configuration, though the README does not enumerate specific cache settings. Those are documented in the guide at seyfert.dev/guide. For bots running on constrained hardware, such as a small VPS shared between multiple processes, the RAM profile of the framework matters more than it does on a dedicated server. The emphasis on this characteristic in the README suggests the framework was developed with that constraint in mind. ## Installing Seyfert The README provides four installation options depending on the package manager and runtime: For Node.js with pnpm: ```sh pnpm add seyfert ``` For Deno: ```sh deno add npm:seyfert ``` For Bun: ```sh bun add seyfert ``` For Node.js with npm: ```sh npm i seyfert ``` The README notes that other package managers also work. The runtime requirement for Node.js is version 18 or higher, with version 16 supported if the --experimental-fetch flag is used. For Deno, version 2.6.9 or higher is required. The README recommends using LTS versions of Bun, Node.js, and Deno. After installation, the next steps are in the guide at seyfert.dev/guide rather than in the README. The README is intentionally minimal and serves as a pointer to the documentation site. ## Runtime Support: Node.js, Deno, and Bun Seyfert supports three JavaScript runtimes: Node.js, Deno, and Bun. This is notable because most Discord bot frameworks either target Node.js exclusively or have unofficial support for alternatives. Seyfert treats all three as first-class targets. Bun is a JavaScript runtime and toolkit that runs TypeScript natively without compilation and emphasizes fast startup and execution. The package.json uses pnpm 11.11.0 and includes a bun.lock file, indicating that the project itself uses Bun in development. The bunfig.toml configuration file is also present. Deno is a JavaScript and TypeScript runtime with built-in security defaults and a different module system from Node.js. The repository includes a deno.json configuration file. The deno add npm:seyfert installation path treats Seyfert as an npm package consumed through Deno's npm compatibility layer. For bot developers who prefer Deno or Bun for their runtime properties (Deno's permission model, Bun's speed), this multi-runtime support means they can use Seyfert without switching runtimes. The practical implication is that deployment options are broader than a Node.js-only framework would allow. ## Type Safety and the Developer Experience The package.json lists typescript 6.0.3 as a devDependency, which is a very recent TypeScript version. The build step is a direct tsc call: pnpm run build runs tsc --outDir ./lib. The project outputs a lib directory with compiled JavaScript and type declaration files. Type safety in a Discord bot framework means that the types flowing through your command handlers, event listeners, and API wrappers match the actual shape of Discord API objects. Seyfert's description as type-safe means these types are accurate and propagated through the codebase, so the compiler catches mismatches rather than leaving them to fail at runtime. The devDependencies include @biomejs/biome for linting and formatting, and vitest for testing. The test:types script runs the full build followed by a TypeScript type check on the test directory using tsc --noEmit, making type correctness part of the test suite rather than just the development workflow. The README describes community support as available 24 hours a day, six days a week. The Discord server is linked in the README and in the npm badge. A Discord server for a Discord bot framework is the natural community channel, and the existence of an active one is a practical consideration for developers who will have questions during development. ## What the README Does Not Document The README for Seyfert is deliberately short. It covers installation, runtime requirements, and links to documentation, but it does not include a code example showing how to register a slash command, how to handle an interaction, or how to configure the cache. All of that is in the guide at seyfert.dev/guide. This means evaluating Seyfert requires visiting the documentation site rather than reading the README. For engineers who judge a library's quality by its README alone, this can be a barrier. The README itself acknowledges the gap: "there are many reasons to use Seyfert, but they dont all fit in this tiny readme". The benchmarks directory exists in the repository but the benchmark results are not published in the README or in any file visible in the repository listing. Engineers who want to verify the low RAM claim need to run the bench:limited-cache script themselves. The package has no GitHub releases listed. This means there is no versioned release to review for changelogs or breaking changes. The version history is tracked through the changesets configuration in the .changeset directory and through git history. ## How Seyfert Compares to discord.js discord.js is the dominant Discord bot framework for Node.js and TypeScript. It has a large community, extensive documentation, and a wide ecosystem of community-built extensions. Its GitHub presence and npm download counts reflect years of adoption. Seyfert positions itself as an alternative to discord.js specifically on two axes: RAM usage and architecture. The "written from scratch" claim distinguishes it from frameworks that fork or wrap discord.js. The cache control emphasis addresses a common complaint about discord.js, where the default cache behavior can accumulate significant memory in large bots. On the other hand, discord.js's long history means a much larger community, more Stack Overflow answers, and more examples available. A developer building a bot for the first time will find more resources for discord.js than for Seyfert. Seyfert is the better fit for TypeScript-first developers who have already built bots and have identified RAM or cache control as a constraint. It is not the obvious starting point for a first Discord bot project, where the community resources around discord.js have more value. ## Conclusion Seyfert is worth evaluating for TypeScript developers building Discord bots who find discord.js too heavy on memory or too permissive on types. Its low RAM focus and from-scratch architecture are concrete design commitments, not marketing language. The documentation lives at seyfert.dev/guide, not in the README, which is unusually thin for a framework at this scale. Before adopting, work through the guide to confirm that the interaction types and cache control mechanisms match your bot's requirements, and check the Discord server for community support. The version at time of review is 5.1.0. ## FAQ ### What runtimes does the Seyfert Discord framework support? Seyfert supports Node.js (version 18 or higher, or version 16 with the --experimental-fetch flag), Deno (version 2.6.9 or higher), and Bun. The README recommends using the LTS version of whichever runtime you choose. ### Where is the documentation for Seyfert? The README is intentionally minimal and links to seyfert.dev/guide for full documentation. Community support is available on the Discord server linked in the README. ### Does Seyfert support the latest Discord API features? The README lists "latest features" as one of its stated goals, and the framework is at version 5.1.0 with the last push on 2026-09-22. Because the README does not enumerate specific Discord API features by name, the guide at seyfert.dev is the right place to verify which Discord interactions and gateway events are implemented. ## Sources - [Official documentation](https://seyfert.dev) - [Official README](https://github.com/tiramisulabs/seyfert#readme) - [Project repository](https://github.com/tiramisulabs/seyfert) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/tiramisulabs-seyfert