For developers, researchers & AI agents
Build on Harpd data
Harpd publishes its product discovery and ranking data as open, machine-readable surfaces:datasets in JSON and CSV, a public read-only APIthat needs no key, and AI-readable files for answer engines. Everything derives from theHarpd Rank board and is licensedCC BY 4.0.
Quick answer
What can developers build on Harpd data?
Harpd exposes 89 approved products and every category board as JSON and CSV datasets, a read-only public API (no key required), and AI-readable surfaces (llms.txt, agent.json, the per-page SEO/GEO payload). All public data is licensed CC BY 4.0 — reuse commercially with attribution.
- Products
- 89
- Auth
- None for public endpoints
- License
- CC BY 4.0
- Schema
- v1.0
Data source: Harpd public datasetsAPI referenceDataset indexMethodology
Developer surfaces
Every public endpoint: datasets, Rank API and the per-page SEO/GEO payload. No key, no signup, CC BY 4.0.
Open datasets89 approved products and every category board as JSON and CSV, regenerated from live Rank data.
Field schemaThe field dictionary for every endpoint (schema version 1.0) and what the public dataset deliberately excludes.
MethodologyHow Rank Points are created and ordered — the rules behind every number, machine-readable at /data/methodology.json.
CitationsReady-to-copy citation lines (plain text and BibTeX) for every dataset, with the data date and coverage.
Evidence registerEvery public claim, its dataset, method and data date — the same register as /data/evidence.json.
Machine-readable files
Data policy in one paragraph
The public datasets contain only public product and ranking information. They never include user accounts, email addresses, payment or Credit transaction data, moderation notes or unapproved submissions. Rank Points are promotional placement — paid with Credits — not an editorial quality score, and the data says so. The methodology is published at/rank/methodology/ and mirrored at/data/methodology.json. What is excluded is stated on the dataset index and the evidence register.
Citation-ready by design
Every dataset carries a ready-to-copy citation with its data date, coverage and licence — plain text and BibTeX on the citation hub. Quoting a single product? Link its profile page so the citation stays verifiable after the board moves.