Inspect HAR network captures with REA

Unofficial guide. This site is an independent community guide and is not affiliated with the REA project. For authoritative docs see the official REA website and the morluto/rea GitHub repository. Commands here are taken from the official README/docs (checked 2026-10-13); REA changes quickly, so verify against the official docs.

REA can read a saved HAR capture offline — recorded URLs are never fetched and no browser or proxy is started. Useful for understanding a website's API from a capture you made.

rea inspect-web-network-capture /absolute/session.har har --json
rea inspect-web-network-capture /absolute/session.har har --record 2 --record 0 --json

MCP form:

{"name": "inspect_web_network_capture",
 "arguments": {"capture_path": "/absolute/session.har", "format": "har", "record_ordinals": [2, 0]}}

Omit record ordinals to return every record. Every record is validated first, so one malformed entry is reported even if you select others.

Related guides

• Use cases
• Reverse engineer Electron apps with REA
• REA CLI command cheat sheet

Sources: web-network-captures.md