Retrieve mod files and build a modpack manifest using the CurseForge API
domain: gaming · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Apply for an API key at console.curseforge.com (administered by Overwolf) and pass it in the x-api-key header
Call /v1/mods/search with a gameId filter to find mods, keeping in mind the max page size of 50 and 10,000 result cap
Call /v1/mods/files (bulk POST) to fetch file metadata for a specific set of project/file ID pairs
Construct a manifest.json (projectID/fileID pairs plus an overrides folder) client-side from that file metadata, since CurseForge does not return the manifest as a direct API object
Review the current 3rd-Party API Terms before shipping any tool that consumes this data for redistribution or caching
Known gotchas
CurseForge's 3rd-Party API Terms (last updated August 2024 and still in force) prohibit caching or persistently saving API response data, require unique non-transferable API keys, and forbid building products that compete with CurseForge itself
Overwolf can impose usage quotas or require a paid license at their discretion under these terms, so a hobby integration can be throttled or blocked without much notice
The modpack manifest.json format is a client-side convention, not something the API returns directly — tools must assemble it themselves from mods/files responses
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