Nicheloom visits: 58,345 all-time · 7,637 in the last 7 days

The opportunity tracker for new startups.

Today: 1,008 launches · Niche of the day: specialized calculation tools · See what launched today →

Voiden

API Workflows as Markdown Files (Obsidian × Curl)

Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.

Want to reach these readers? Sponsor an issue.

We open sourced Voiden a few months ago: an offline API tool where API requests live as executable Markdown and are versioned in Git.The goal, when we set out to build Voiden, was simple - to combine the power and flexibility of Obsidian-style files with the simplicity of curl. Instead of static forms, requests are composed with blocks (endpoint, auth, params, body) that you can reuse, override, and stitch together across files (more like functions than requests).Since open sourcing, most of what we have built has come directly from how people actually use it (11K installs). Most of the feedback, requests and contributions were around defining workflows, chaining requests, scripting them, and structuring everything in reusable .void files.- Real scripting, not sandboxes: In most API tools scripting lives in a constrained JS sandbox, an environment that doesn't take advantage of powerful runtimes that might be available locally for a developer. The biggest limitation here is the assumption that the tool should define the runtime. Voiden runs fully locally, so this allows you to just run your scripts with actual runtimes (JS, Python, shell, with support for others being added).- Multiple requests per file (mini workflows): Allowing multiple requests in a single .void file turned out to be surprisingly useful. Instead of scattering related requests, you can group them naturally: an order flow (create - pay - confirm), or a full CRUD cycle in one place. The file effectively becomes an executable flow: run one request, or the entire sequence end-to-end. And since Voiden is executable Markdown, docs and tests are in the same `.void` file that can be organised better, preventing duplication and drift.- Stitch (composable workflows across files): Instead of a single large collection, workflows (“Stitch”) are built from .void files that you can combine across scenarios. You define small flows (auth, setup, CRUD, etc.) and stitch them together into larger workflows, without duplication. This is just the first version of this capability, we still have a lot to do here.- Agents :The file-based, local-first model also works well with agents. Since Voiden has a built-in terminal and uses Markdown, we added “skills” so that Claude and Codex agents can work directly with .void files (using your own subscriptions).We also published an SDK for community plugins, and made improvements to performance, reliability, and DX (keyboard-first), with careful attention to performance given the Electron baseLooking for feedback and suggestions.Github : https://github.com/VoidenHQ/voidenDownload : https://voiden.md/download

HN · launched Apr 15, 2026 · 9 upvotes (top 45%) · 0 views

Niche: api testing and mocking tools · 85 launches, 7 in the last 7 days ▼ -22% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Commercial product

Visit website ↗ Source listing ↗

Could you build this?

Yes Voiden is an Electron/Tauri desktop application that renders Markdown, parses embedded HTTP requests, executes them via standard networking libraries (or libcurl), and writes changes back to disk.

Discussion

5 comments analyzed.

Competitors mentioned: Postman

Concerns raised: Current sprint documentation not kept up to date, Unclear what next important features are planned

Feature requests: Keep sprint roadmap more current, Visibility into upcoming important features

Competitors

Other products that read as similar to this one : 299 launches clear the similarity bar, closest 8 shown.

Attention rank: #141 of 300 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 158 days after the earliest competitor.

  • Voiden · hn · 2026-02-01 · 48 upvotes · similarity 0.74
  • 1Baton · hn · 2026-09-13 · 5 upvotes · similarity 0.46
  • Crust · hn · 2026-03-17 · 95 upvotes · similarity 0.46
  • HermesMarkdown · ph · 2026-11-11 · 3 upvotes · similarity 0.46
  • Executable Markdown files with Unix pipes · hn · 2026-01-09 · 126 upvotes · similarity 0.44
  • Waymark · hn · 2026-11-05 · 88 upvotes · similarity 0.44
  • SecretEnv · hn · 2026-05-05 · 5 upvotes · similarity 0.43
  • OpenKnowledge · hn · 2026-06-25 · 381 upvotes · similarity 0.43

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.