Carbon

What it does

Know exactly what your AI is doing and what it costs. Carbon captures every LLM and tool call in 2 lines of code and turns it into a queryable ledger — cost over time, spend by model, heaviest users, tool failures, where agents stall. Every provider, 1,000 events free.

Carbon turns every LLM and tool call into a queryable ledger — sliced by agent, model, user, and thread — so your cost, usage, and product decisions stop running on vibes. Free to start.

You shouldn’t have to play detective with your own AI usage. Carbon helps you find the answers to your questions in seconds, not weeks. Wrap the AI SDK you already use — OpenAI, Anthropic, Vercel AI. Two lines, and your first event lands in the dashboard in seconds. import OpenAI from "openai" ; import { Carbon } from "@carbon-js/sdk" ; import { wrapOpenAISdk } from "@carbon-js/sdk/ai" ; // Wrap your client with Carbon SDK. const carbon = new Carbon (); const openai = wrapOpenAISdk ( new OpenAI (), carbon ); // Use exactly as before — every call is captured. const completion = await openai . responses . create ({ model: "gpt-5.5" , input: "Hello, Carbon!" , }); npm pnpm yarn bun npx…from oncarbon.site

• 
  Metabase Data StudioMar 2026 · metabase.com · ▲153

  Build the semantic layer that makes AI analytics trustworthy

• 
  Layer2023 · layer.app · ▲169

  Your AI research copilot

• 
  CrbonFree27d ago · crbonfree.com · ▲61

  Audit-grade carbon numbers for every AI token you use

• 
  AI-driven Analytics Tools2024 · ▲58

  Get insights to boost revenue🚀

• 
  I built an open-source AI data layer that connects any LLM to any data2025 · github.com · ▲18

  Excited to share a project I’ve been building for months! Would love to receive honest feedback :) My motivation: AI is clearly going to be the interface for data. But earlier attempts (text-to-SQL, etc.) fell short — they treated it like magic. The space has matured: teams now realize that AI + data needs structure, context, and rules. So I built a product to help teams deliver “chat with data” solutions fast with full control and observability (agent tracing, quality scores, etc) — am I wrong? The product allows you to connect any LLM to any data source with centralized context…

• 
  Oodle.ai – $10 per million agent tracesJul 2026 · oodle.ai · ▲31

  Hi HN, we're Kiran and Vijay! Over the past two years, we have built a columnar storage engine for observability: logs, metrics, and traces. Today, it's exciting for us to show what we've built on top of that foundation: LLM Agent Observability. Given how non-deterministic agents are, storing all traces without sampling was critical for us. But these traces tend to be in the MBs, sometimes GBs - we needed to store them inexpensively. We also needed the queries and analyses to be fast. To meet both these goals, we store them in S3 in our own parquet-like file format, and query them using AWS…

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

• 
  Onepin▲384

  AI voiceover with every name, price and date said right

  AI · 30d ago · onepin.ai

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

• 
  Fundraisly▲1,537

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

• 
  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

• 
  Performative-UI – A react component library of design tropes▲1,181

  Hi HN! I was super frustrated at apps like tiktok and wechat preventing me from saving or downloading the animated gifs, so I made a little tool to turn a screen recording into a slack-sized emoji. Hope you get some value from this!

  Life & fun · Jun 2026 · vorpus.github.io

• 
  Upstream▲976

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

• 
  Goldfish▲958

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

• 
  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Search 18 years of Hacker News and chart how any topic, tool, or person trended. Overlay terms to compare their rise and fall across 45M posts and comments.

  Life & fun · Jun 2026 · hackernewstrends.com