mdn-browser-compat-data
reference corpus · status live · domain WEB (Web and frontend platform) · lane A · refresh pinned · tags GLOBAL · COMPAT-DATA · BROWSER-SUPPORT · MDN · CC0 · DATA
What an agent uses it for
an agent checking API/CSS/HTML/JS availability queries this for machine-readable per-feature browser-version compatibility records.
curl -fsSLO https://raw.githubusercontent.com/xerj-org/xerj/corpus-hub/tools/xerj-code/hub/mdn-browser-compat-data.jsonxerj corpus add --from ./mdn-browser-compat-data.jsonxerj corpus index mdn-browser-compat-data then xerj code mdn-browser-compat-data "your question"Needs the xerj CLI and a local node running; the copy prompt covers both, checks each step, and shows how to stop only the node you started. No shell: the MCP tool xerj_code_search with corpus: "mdn-browser-compat-data", once the corpus is indexed on the node.
Sources and pins
| source | pin | licence | size | review note |
|---|---|---|---|---|
| browser-compat-data | 85c50b0bb92d | CC0-1.0 | 28.4 MB / 3,293 files | Decoded LICENSE: 'CC0 1.0 Universal' public-domain dedication; GitHub detector concurs (cc0-1.0). This is the DATA repo, NOT MDN's CC-BY-SA article prose. Live. No attribution legally required; credit MDN courteously. Shallow ~39MB. |
28.4 MB across 3,293 files. Added 2026-10-13.
Rights
CC0-1.0. Redistribution permitted with attribution per the licence review. The review block records a human opening each licence file at the pin. Detector output is a hint, never the verdict.
Retrieval spot-check (G7)
Not yet spot-checked. Queries are pre-registered in the registry before grading.