# SpAItial API (Echo) vs World Labs World API (Marble) (slim)

> SpAItial scores 56.7 (C) to World Labs World's 50.1 (D) for 3d world generate. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/spaitial-vs-world-labs.md (~1,950 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/spaitial-vs-world-labs.json · canonical https://www.anchorterminal.com/compare/spaitial-vs-world-labs
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

SpAItial API (Echo) scores 56.7 (C) on agent readiness against World Labs World API (Marble)'s 50.1 (D), and leads in 6 of 7 scored categories. Both do 3d world generate.

- SpAItial API (Echo): C 56.7, rank #731 of 1221 · https://www.anchorterminal.com/tools/spaitial.min.md
- World Labs World API (Marble): D 50.1, rank #930 of 1221 · https://www.anchorterminal.com/tools/world-labs.min.md
- SpAItial API (Echo), good for Agents and pipelines that need an explorable 3D scene from a prompt, a photo or a panorama, with splat, mesh and floor-plan exports, including game prototyping and real-estate or architecture mock-ups. Ahead on Agent ergonomics, 82 against 70; Security & auth, 53 against 48; Payments & pricing, 40 against 20; Maintenance & community, 48 against 10; Transparency & trust, 66 against 58. Also Free to start without a card.
- World Labs World API (Marble), good for Agents that need a navigable 3D scene from a prompt, a photo, several photos or a phone video, as splats, a collider mesh or a textured GLB, at about $1.26 a world. Also No incidents deducted, where SpAItial API (Echo) loses 3 points for them.

| Category | SpAItial API (Echo) | World Labs World API (Marble) |
| --- | --- | --- |
| Reliability (16%) | 45 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 81 | 79 |
| Agent ergonomics (13%) | 82 | 70 |
| Security & auth (14%) | 53 | 48 |
| Payments & pricing (10%) | 40 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 48 | 10 |
| Transparency & trust (7%) | 66 | 58 |

| Fact (where they differ) | SpAItial API (Echo) | World Labs World API (Marble) |
| --- | --- | --- |
| Vendor | SpAItial | World Labs Technologies, Inc. |
| Hosted endpoint | `https://api.spaitial.ai/v1` | `https://api.worldlabs.ai/marble/v1` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Pricing | Freemium | Pay per use |
| Licence | Proprietary hosted service under SpAItial's Terms of Service (last updated 27 October 2026, English law). The agent skill (spaitial-dev/spaitial-api-skill) and the Claude plugin (spaitial-ai/spaitial-ai-plugin) are MIT-licensed; the models and the MCP server are closed | Proprietary service. The example and Python client repositories are MIT |
| Tools exposed | 15 | none |
| Last release | 2026-10-25 | 2026-04-02 |
| Popularity | none | 24 stars |