# Granite

**Canonical:** https://apis.io/providers/granite-md/  
**Website:** https://granite.md/  
**APIs profiled:** 1

Granite provides an encrypted knowledge base and second brain for teams, offering plain Markdown notes, live co‑editing, SSO, audit logs, and secure AI access via the Model Context Protocol. It supports granular permissions, compliance features, and integrates with Claude, ChatGPT, and other AI assistants, targeting both individuals and enterprises.

## Kin Score — 50.2 / 100 (developing)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 66.1 |
| Contract Quality | 58.7 |
| Contract Governance | 35.6 |
| Operational Transparency | 23.8 |
| Developer Ergonomics | 47.0 |
| Access Clarity | 51.1 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 28.2 (matched via fallback).

## Agent readiness — 50.2 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | yes |
| Delegated Identity | served |
| Protected Resource Metadata | no |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | no |
| Operation Distinctiveness | distinct |
| MCP Tool Quality | na |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: medium).

## APIs (19)

- **Granite Auth API** — Sign-up, login, sessions, and password reset.
- **Granite Billing API** — Plans and payments (PLAN.md 1.2, Phase 7). A person buys Pro, with its first 30 days free once per person; a workspace buys Business per seat (members above Guest, at least 2) a...
- **Granite Comments API** — Comments on notes, kept outside the Markdown file. A thread's first comment is anchored to a quote of the text with a little context before and after; clients find the quote aga...
- **Granite Drive API** — Google Drive references (PLAN.md Phase 11). A person connects their Google account (only the files they pick are visible to Granite), picks files, and each becomes a reference i...
- **Granite Folders API** — Create, rename, move, and delete folders. A folder is a path prefix, there while it holds a file; moving or deleting one changes all its files in one commit.
- **Granite knowledge base API** — Retrieval for AI tools (Pro and Business). Granite has no built-in assistant: tools search the knowledge base and get ranked passages with citations, then answer with their own ...
- **Granite Me API** — The signed-in user.
- **Granite Meta API** — Service information.
- **Granite Note Shares API** — One note shared for editing with someone, by email.
- **Granite Notes API** — Read and change single notes by their text, for scripts and integrations. Each change is an ordinary commit that synced devices, history, and search see.
- **Granite OAuth API** — The consent page and connected apps of Granite's OAuth 2.1 server. The protocol endpoints themselves (`/.well-known/oauth-authorization-server`, `/oauth/register`, `/oauth/autho...
- **Granite Publish API** — Public pages of published notes.
- **Granite Search API** — Full-text search over notes.
- **Granite Shopify API** — Shopify stores connected with the Granite for Shopify app.
- **Granite Sync API** — The sync protocol (PLAN.md Appendix B).
- **Granite Templates API** — The vault's note templates (Markdown notes in its templates folder), and notes made from them.
- **Granite Vaults API** — Vaults (folders of notes that sync).
- **Granite Webhooks API** — Signed HTTP callbacks for vault events, and integrations built on them. Granite posts a JSON `WebhookEvent` to your URL within seconds of each change. Integrations connect a ser...
- **Granite Workspaces API** — Company workspaces (Business plan): members with roles (owner, admin, member, guest), invitations by email or link, and verified email domains that let colleagues join. Anyone w...

## Agentic access (1)

- **Granite Agentic Access** — 192 operations · 124 acting · 13 human-in-the-loop

## Security (3)

- **Granite Authentication** — 4 schemes
- **Granite Domain Security** — TLSv1.3 · HSTS · DMARC
- **Granite Vulnerability Disclosure** — no policy recorded

## Plans (1)

- **Granite Plans Pricing**

## Tags

Knowledge Base, Artificial Intelligence, Collaboration, Security, Encryption

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