# Open Souls

**Canonical:** https://apis.io/providers/open-souls/  
**APIs profiled:** 0

Open Souls is an open-source framework and philosophy for building "AI souls" — agentic, embodied digital beings with personality, drive, and ego, built on top of large language models. The Soul Engine framework (distributed as the soul-engine npm package and CLI) models agency, memory, emotion, and goal-setting through WorkingMemory, cognitiveSteps, and MentalProcesses abstractions, describing itself as "NextJS + Vercel for the minds of digital beings." The project is now legacy: the opensouls.org site is parked and the hosted Soul Engine cloud service is no longer operating, but the open-source framework and npm packages remain published under the opensouls GitHub organization. Open Souls was surfaced as a portfolio company of a16z and added to the API Evangelist network.

## Kin Score — 8.2 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 8.2).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## 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).

## Tags

Company, AI Agents, LLM, Agent Framework, AI Souls, Open-Source, Developer Tools

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