# 3D Asset Library — MCP server

Frozen catalogue: 972 permitted families. Free beta — evaluation use; no trial commercial licence.
MCP: https://mcp.sgtfleet.com/mcp (Streamable HTTP, stateless). Send Authorization: Bearer YOUR_KEY on every MCP/API call and download.
Public discovery needs no key. Do not send API keys in URLs.
Free (forever): chair, table and bicycle; 3 build attempts per UTC day; GLB. 14-day trial: automatic on signup, no card; all 972 permitted families; 25 build attempts per UTC day; GLB and FBX. Then the key falls back to the Free plan; nothing is deleted. Free and trial previews stay watermarked. Evaluation licence: draft, not reviewed by counsel. One trial per email address. Premium, coming soon: higher limits, no watermark, commercial licence once reviewed. Tell us what you would build at /#waitlist (Premium interest). No prices announced.
usage returns plan (free, trial or pro), trial_ends_utc (ISO UTC or null), trial_days_left (remaining partial days rounded up), builds_per_day, seconds_per_day, formats, builds_remaining, blender_seconds, seconds_reserved, rpm and concurrency. Failed build/vary attempts count. Limits: 30 calls/minute, one operation at a time, 600 execution seconds/call. Free: 1800 execution seconds/day; trial: 15000; Pro: 36000. Pro is operator-issued only; no public promotion route.

## Tools
- search: Rank permitted families by keywords and schema-default dimension filters.
- suggest: Suggest families and schema-backed parameters without building.
- list_families: List families available to this account.
- get_schema: Read a source-matched family schema.
- get_skill: Read a family skill card.
- list_presets: Read named family presets.
- validate: Validate parameters through bounded Blender execution.
- build: Build one owned GLB and watermarked trial preview.
- vary: Build one variation of a named preset.
- check: Check an owned asset's delivery hashes and recorded audit; no new geometry check.
- export: Get an owned GLB URL; FBX requires an active trial or operator-issued Pro account.
- usage: Read plan, trial_ends_utc, trial_days_left, quotas and remaining usage.

## Discover
Search: https://mcp.sgtfleet.com/api/search?q=office%20chair&limit=3
Use category, comma-separated tags, max_width_m/max_height_m, limit (1..100), cursor. Dimension filters exclude unknown schema extents; defaults are not measured bounding boxes. verbose=true expands results.
- Benchmarks data: https://mcp.sgtfleet.com/benchmarks.json
- Benchmarks methods and limitations: https://mcp.sgtfleet.com/benchmarks.md
- Full guide: https://mcp.sgtfleet.com/llms-full.txt
- MCP card: https://mcp.sgtfleet.com/.well-known/mcp.json
- HTTP OpenAPI: https://mcp.sgtfleet.com/openapi.json
- Paginated catalogue: https://mcp.sgtfleet.com/catalog.json
- Example family: https://mcp.sgtfleet.com/families/chair.json
- Quickstart: https://mcp.sgtfleet.com/quickstart
- Trial: https://mcp.sgtfleet.com/#trial
- Premium interest: https://mcp.sgtfleet.com/#waitlist