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AI · alternatives · 2026

24 alternatives to tsforge - full stack typescript harness

An AI harness that can't ship bad TypeScript.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    HarnessRouter Community Editionfree tier, from $20/mo▲397

    Open-source unified interface for agent harnesses

    Aug 2026 · harnessrouter.ai · its alternatives →

  2. 2
    Inspekt▲98

    AI-powered API proxy for automated debugging and security

    Mar 2026 · inspekt-api.vercel.app · its alternatives →

  3. 3OS

    Hello! This is Jeane and Samuel and we’re building RecipeUI. RecipeUI is an open source Postman alternative that uses TypeScript to statically type and autocomplete requests. We built this because current API tools don’t deal with the fact that some APIs are just painful to work with. For us, it’s usually error after error as we try to figure out how to properly form the first request. We recorded a demo to show you how TypeScript helps us autocomplete a request correctly. https://youtu.be/O_Mly_p-g5s How does our platform improve the developer experience? The analogy is…

    2023 · recipeui.com · its alternatives →

  4. 4

    5000+ MCP servers AI tools, 1 line of code

    2025 · toolsdk.ai · its alternatives →

  5. 5
    RecipeUI▲143

    Open source type-safe Postman alternative

    2023 · recipeui.com · its alternatives →

  6. 6

    From concept to web app in minutes, fine-tune in TypeScript

    2023 · contember.com · its alternatives →

  7. 7

    A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.

    May 2026 · ahk.cardor.dev · its alternatives →

  8. 8

    Hi HN, we are Nick and Ben, creators of Axilla - an open source TypeScript framework to develop LLM applications. It’s in the early stages but you can use it today: we’ve already published 2 modules and have more coming soon. Ben and I met while working at Cruise on the ML platform for self-driving cars. We spent many years there and learned the hard way that shipping AI is not quite the same as shipping regular code. There are many parts of the ML lifecycle, e.g., mining, processing, and labeling data and training, evaluating, and deploying models. Although none of them are rocket science,…

    2023 · github.com · its alternatives →

  9. 9

    Hey HN, I’m sharing ts-chan, an NPM package providing Go-like concurrency primitives, including channels and select statements, for TypeScript and JavaScript, supporting Node.js, Deno, Bun, and browsers. This is something I've built to make implementing Go-style "control loops" feasible in JavaScript, but there are many possible applications. Highlights: - Features a FIFO processing Chan class and versatile Select class for concurrency control. - Supports buffered channel and channel close semantics very close to Go's. - TypeScript-first implementation. - Defines a simple "channel protocol"…

    2023 · github.com · its alternatives →

  10. 10

    Introducing the Code ChatGPT Plugin - a new era of seamless interaction between ChatGPT and your codebase. This TypeScript Code Analyzer furnishes a suite of utilities to analyze TypeScript code, enabling ChatGPT to "talk" with YOUR code. Fetch a list of all the files in your project, list of every function in a TypeScript or JavaScript file, or even get the content of a specific function, all while staying in your conversation with ChatGPT. With accessible API endpoints, you can effortlessly navigate your codebase and ask ChatGPT anything you can think of about it. Say goodbye to the days…

    2023 · github.com · its alternatives →

  11. 11

    Contribute to peter-woyzbun/rests development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  12. 12

    GraphQL APIs in TypeScript with complete e2e type safety

    2021 · uniform-graphql.whatsgood.dog · its alternatives →

  13. 13

    Fully wired full-stack TS apps with hallucination-free AI

    Jan 2026 · getawdejenhabtegebrielllc-666b92cf.mintlify.app · its alternatives →

  14. 14

    Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work with multiple model providers, embrace MCP (for rich tooling), and support the unstoppable and growing community of TypeScript AI developers by enabling a smooth transition to production use cases. This is why we are building AgentKit, and we’re really excited about it for a few…

    2025 · github.com · its alternatives →

  15. 15

    As a developer of typia, have to alive in the new typescript-go era, I made a new toolchain for tsgo. Making the ttsc, I understood that the new plugin toolchain system can dramatically reduce lint rule checking time by integrating into the typescript-go. So made `@ttsc/lint`, and its time is 600x to 1600x faster than eslint. From now on, when you compile TypeScript, lint violations would be caught in the same time. No more need to run both `tsgo` and `eslint` independently. > This repository is not v1 yet because the typescript-go has not been released yet, but if you wanna experience…

    Jul 2026 · github.com · its alternatives →

  16. 16AM

    I made an open source, MIT license Typescript library based on some of the latest research that generates prompt injection attacks. It is a super minimal/lightweight and designed to be super easy to use. Keen to hear your thoughts and please be responsible and only pen test systems where you have permission to pen test!

    2025 · prompt-injector.blueprintlab.io · its alternatives →

  17. 17TS

    Hi HN, I’m Guillaume, the cofounder of Bearer, an Open Source SAST solution. After launching a few weeks ago here on Hacker News with support for Ruby and JavaScript stacks, I’m happy to report we’ve just released a new version (v1.2) with TypeScript support! In terms of code coverage, we use the same rules already implemented for vanilla JavaScript, but as usual, you can build your own. The rules list is here: https://docs.bearer.com/reference/rules/ It’s a first version for TS, but we believe that thanks to the pre-existing JavaScript support it should already…

    2023 · its alternatives →

  18. 18

    Stop writing boilerplate. Let AI handle the logic.

    Jan 2026 · its alternatives →

  19. 19

    TL;DR Gatehouse-TS is a zero-dependencies authorization policy library written in TypeScript, ported from Rust. It allows you to combine different access control policies to check before allowing someone to access a resource. A few weeks ago, I saw a post on HN about Gatehouse, an authorization library written in Rust. Here's the original HN thread: https://news.ycombinator.com/item?id=43466221 I looked at their GitHub page, and started reading the source code. I do this for anything posted here that catches my attention, even if it's written in a language I don't understand.…

    2025 · github.com · its alternatives →

  20. 20

    tsDoc Generator Technical TSDoc Generator for TypeScript. https://chat.openai.com/g/g-91MAzeHrG-tsdoc-generator PR Assistant I create PR descriptions in Markdown from code, JIRA links, and checklist statuses. https://chat.openai.com/g/g-XgoT3yk6a-pr-assistant

    2023 · chat.openai.com · its alternatives →

  21. 21

    Type Safe TSX Runner With Type Checking

    2025 · npmjs.com · its alternatives →

  22. 22

    Learn TypeScript by doing projects, quizzes and AI feedback

    2025 · its alternatives →

  23. 23

    Secure your LLM integrations with ease

    2025 · github.com · its alternatives →

  24. 24TB

    We've built a new type-stripping compiler for TypeScript source: `ts-blank-space` It's: * 5.6x faster than `tsc` due to zero-codegen * Written in TypeScript * Uses the official TypeScript parser * Accurate/preserved source locations * In used in production It uses the same novel approach that inspired Node 22.6.0's `--experimental-strip-types` functionality, released last month

    2024 · bloomberg.github.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →