Servant – A Haskell web framework with type-level API DSL

In plain words

Servant is a Haskell web framework that uses a type-level API domain-specific language to define web services. It allows developers to specify API routes and behaviors through Haskell's type system, enabling compile-time verification of API structure. The framework is designed for Haskell programmers building web applications and APIs who want strong type safety in their service definitions.

written from the facts on this page · September 2026

From the sources

If you’d like to be added, please send a pull request changing the consultancies.md file, while maintaining alphabetical order. Being listed does not imply endorsement by the servantfrom haskell-servant.github.io

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  IHP, a batteries-included web framework built on Haskell and Nix2020 · ihp.digitallyinduced.com · ▲280

  IHP is the Haskell web framework for agentic engineering. Your agent writes the code; typed SQL, generated schema types and compile-checked views prove it works.

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  Payload 2.02023 · payloadcms.com · ▲307

  TypeScript headless CMS + app framework

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  RAML 1.02015 · raml.org · ▲260

  The simplest way to design APIs

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  Arch2024 · github.com · ▲314

  Hey HN — I’m Adil from Katanemo (with Salman, Shuguang, and Meiyu) We previously shared an early version of this project as ArchGW. Based on customer feedback, the scope expanded from “LLM routing and model access” into something broader: delivery infrastructure for agentic applications. We renamed it to Plano and reworked the architecture accordingly. The problem On-the-ground AI practitioners will tell you that calling an LLM is not the hard part. The really hard part is delivering agentic applications to production quickly and reliably, then iterating without rewriting system code every…

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  A Haskell library for web and distributed composable applications2016 · github.com · ▲18

  A Cloud monad based on transient for the creation of Web and reactive distributed applications that are fully composable, where Web browsers are first class nodes in the cloud - GitHub - transient-haskell/transient-universe: A Cloud monad based on transient for the creation of Web and reactive distr

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  Agents.json – OpenAPI Specification for LLMs2025 · github.com · ▲212

  Hey HN, we’re building an open specification that lets agents discover and invoke APIs with natural language, built on the OpenAPI standard. agents.json clearly defines the contract between LLMs and API as a standard that's open, observable, and replicable. Here’s a walkthrough of how it works: https://youtu.be/kby2Wdt2Dtk?si=59xGCDy48Zzwr7ND. There’s 2 parts to this: 1. An agents.json file describes how to link API calls together into outcome-based tools for LLMs. This file sits alongside an OpenAPI file. 2. The agents.json SDK loads agents.json files as tools for an LLM that…

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  /dev/null▲482

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

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  Talanoa▲343

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Pexels 2.0▲1,725

  The best free stock photos in one place

  Work · 2015 · pexels.com

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  Submit.co▲1,092

  Find where to get press coverage for your startup

  Life & fun · 2015 · submit.co

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  Tesla Powerwall▲928

  Tesla home battery

  Life & fun · 2015 · tesla.com

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  Lily▲865

  A drone with a camera that follows you. Throw it in the air.

  Life & fun · 2015 · lily.camera

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  Sunrise Meet▲858

  The fastest way to schedule a one-to-one meeting

  Work · 2015 · sunrise.am

• TP
  This page exists only if someone is looking at it▲803

  Life & fun · 2015 · ephemeralp2p.durazo.us