# Improbable

**Canonical:** https://apis.io/providers/improbable/  
**Website:** https://www.improbable.io/  
**APIs profiled:** 0

Improbable (Improbable Worlds Ltd) is a London-based technology company and venture builder. Founded in 2012, it originally built SpatialOS, a distributed simulation and networking platform for large-scale real-time multiplayer games, and later Morpheus / M² (MSquared), a network of interoperable metaverse worlds. Today Improbable operates primarily as a venture builder and capital allocator, partnering with founders to launch and scale companies across AI, Web3 and the metaverse. It is backed by Andreessen Horowitz (a16z) and the SoftBank Vision Fund. Its historical developer surface centered on the SpatialOS Platform SDK, Worker SDK and the `spatial` CLI (distributed via NuGet), plus the improbable-eng and spatialos GitHub organizations; the standalone documentation, status and IMS subdomains have since been retired as the company pivoted away from a standalone developer platform.

## Kin Score — 11.9 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 11.9).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Improbable Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Venture Builder, Metaverse, Gaming, Simulation, Multiplayer, Web3, Infrastructure, SDK, London

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/improbable/). Scores are computed from the provider's own public artifacts under a published rubric.