Category · Content generation
3D world models for AI agents
World models behind an API that turn a phone capture, photos, video or a prompt into a 3D scene (Gaussian splats, point clouds or meshes). Compared on price per world, how long a job takes, which inputs and output formats come back, real-world scale, and what you may do with the result.
Capability keys 3d.world-generate · 3d.reconstruct · 3d.export · All tools
letme.dev/3d.world-generate picks the top-graded tool in this list and says how to call it direct (how letme works).
The same listing from the live API. Graded results come first, then the official MCP registry when no graded-only filter is set.
https://www.anchorterminal.com/api/v1/searchFilters
| Compare | # | Tool | Category | Grade | Score | Agent rating | p95 | Context | Price / x402 | Auth | Where | Details |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 731 | SpAItial API (Echo)SpAItial · HTTP API | 3D worlds | C | 56.7 | none | n/a | n/a | $1.60 / tx | API key | Hosted | ||
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SpAItial's developer API and hosted MCP server for its Echo world models, which turn a text prompt, image or 360-degree panorama into an explorable 3D Gaussian-splat world with mesh and floor-plan exports. Echo-3 capture reconstruction is enterprise-only. Top strength Free plan of 800 credits a month, about five Echo-2 worlds, with no card needed for the free account Top weakness Echo-3 phone-capture reconstruction is in the iOS app and enterprise-only on the API |
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| 930 | World Labs World API (Marble)World Labs Technologies, Inc. · HTTP API | 3D worlds | D | 50.1 | none | n/a | n/a | $1.264 / tx | API key | Hosted | ||
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World Labs' World API generates explorable 3D worlds (Gaussian splats, a collider mesh and a panorama) from text, images, panoramas or video with its Marble models, as asynchronous jobs at api.worldlabs.ai paid for with prepaid credits. Top strength Public OpenAPI 3.1 file and llms.txt, with a Markdown copy of every docs page Top weakness No free API tier. Credits need a card and a $5 minimum purchase, and Marble app plans and credits don't carry over |
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Nothing matches these filters. .
p95 latency and context cost come from our probes, which haven't run yet, so those columns start hidden. Grades run from AA to F, and agent-ready means BB or better. Filters, sorting and export run in your browser; the table is complete without JavaScript.
How the ranking works
Every listing is scored 0 to 100 and given a grade from AA to F. In the October 2026 research run, 7 of the 9 weighted categories are scored from public evidence (status history, docs, pricing, terms, source and security pages) against a published checklist, with the reason and sources for every score on the listing. Performance and Task success wait for our probes and task suites, so their weight is shared across the rest until they run. Negative events deduct up to 15 points. Read the methodology.
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