Climate
Receipt Carbon Estimator
Shows the carbon impact of everyday purchases
Intermediate36h2–3
Next.jsOCRLLM
16/20ESG Report Claim Extractor
Pull every climate target and claim from a company report and check for vagueness.
Intermediate18h1–3 people15/20 fit
Build ESG Report Claim Extractor for analysts, journalists and students in ~18h with 1–3 people. Stack: MarkItDown + LLM + Next.js.
Why it wins: Accountability tool with a crisp output.
Build flow
01 · Problem
Sustainability reports are long and vague targets hide behind nice wording.
02 · Solution
Convert the report, extract targets with dates and baselines, score each for specificity and flag vague or missing commitments.
03 · Build
- 1Convert PDFs
- 2Extract claims as JSON
- 3Score specificity
- 4Compare companies
04 · Demo
Upload a real report and show the vague-claims list.
MVP checklist
- Target extraction
- Specificity score
- Vague claim flags
- Company comparison
Tech stack
| Tech | Role | |
|---|---|---|
| MarkItDown | Docs to Markdown for LLMs | Tool |
| LLM | Language model | AI |
| Next.js | Frontend + API routes | Web |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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