# Pieces

**Canonical:** https://apis.io/providers/pieces/  
**Website:** https://pieces.app  
**APIs profiled:** 8

Pieces is an on-device AI developer assistant and long-term memory tool. Pieces OS runs locally on the developer's machine and exposes a documented local REST API at http://localhost:1000 covering saved snippets (assets), the Pieces Copilot (QGPT) question/stream endpoints, local and cloud models, formats, applications, conversations, and workspace context. The same on-device API powers official OpenAPI-generated SDKs for Python, TypeScript, Dart, Kotlin, and C#.

## Kin Score — 34.8 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 34.8).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 48.8 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 21.8 (agent-aware)

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

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (8)

- **Pieces Applications API** — Application registration and sessions.
- **Pieces Assets API** — Saved snippets stored in the local Pieces OS database.
- **Pieces Conversations API** — Copilot conversations and their messages.
- **Pieces Formats API** — Fragment representations that back each asset.
- **Pieces Models API** — Local and cloud LLMs available to Pieces OS.
- **Pieces QGPT API** — Pieces Copilot generative engine (question, relevance, stream).
- **Pieces User API** — Local user context.
- **Pieces Well Known API** — Health and version of the local Pieces OS instance.

## Agentic access (1)

- **Pieces Agentic Access** — 28 operations · 14 acting

## Security (1)

- **Pieces Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Pieces Plans Pricing**

## Tags

Artificial Intelligence, Developer Tools, On-Device, Local API, Long-Term Memory

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