Context7
Up-to-date docs for AI agents
Descripción del creador (original en inglés)
Persistent coding memory for AI assistants. MCP stdio, hybrid search, graph, context.
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
Elige la app de IA que usas y copia la configuración.
RATARY_API_KEY, RATARY_BASE_URLLos valores marcados como secretos son llaves de tu cuenta. Nunca los compartas ni los pegues en un chat.
Necesitas
¿Qué app usas?
Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.
Abre Claude Desktop → Settings → Developer → Edit Config y pega esto en claude_desktop_config.json
{
"mcpServers": {
"ratary": {
"command": "npx",
"args": [
"-y",
"@ratary/mcp-server"
],
"env": {
"RATARY_API_KEY": "your-value",
"RATARY_BASE_URL": "your-value"
}
}
}
}Ejecuta esto en tu terminal
claude mcp add ratary --env RATARY_API_KEY=your-value --env RATARY_BASE_URL=your-value -- npx -y @ratary/mcp-serverCompleta los valores vacíos antes de ejecutarlo.
Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"ratary": {
"command": "npx",
"args": [
"-y",
"@ratary/mcp-server"
],
"env": {
"RATARY_API_KEY": "your-value",
"RATARY_BASE_URL": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"ratary": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@ratary/mcp-server"
],
"env": {
"RATARY_API_KEY": "your-value",
"RATARY_BASE_URL": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
RATARY_BASE_URL envEsta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 7 nov 2026
El nombre en el registro se verificó con la cuenta de GitHub ontorata, dueña del repo
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Este se ejecuta en tu computadora; no hay endpoint en internet
Se ejecuta en tu computadora y usa ajustes locales en su lugar
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
Debes completar: RATARY_API_KEY
Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).
El repo de GitHub cambió por última vez –, y la última versión (1.1.1) llegó al registro hace 4 meses.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Node.js en tu computadora.
En la misma categoría: Context7, Codebase Memory, Exa
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
Up-to-date docs for AI agents
Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
Connect AI agents to Exa for web search, content fetching, and multi-step research.
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
Ratary
Build AI that remembers.
Ratary is the open-source AI Brain Platform — persistent memory,
structured knowledge, and intelligent retrieval for every model and agent you run.
Get started → · Star on GitHub · Website · Docs
Ratary is where AI remembers. · Built by Ontorata
Quick start · Ecosystem · Architecture · How it works · Capabilities · Docs
*Why does AI forget between sessions?*
Every AI session starts from zero.
Your model forgets yesterday's architecture decisions. Your agent drops customer context between runs. Your coding assistant can't recall why you chose Postgres over DynamoDB. Teams paste the same background into Cursor, Claude, ChatGPT, and custom bots — and knowledge still drifts.
Vector databases store chunks. RAG pipelines retrieve documents. Agent frameworks orchestrate tools.
None of them give AI a durable brain.
*Why build a brain layer now?*
AI models are getting cheaper. Context windows are getting larger. Agents are getting capable.
But AI still forgets.
The bottleneck is no longer reasoning. It's memory — durable, structured, retrievable, and owned by you.
Every serious application eventually needed a database. Every serious AI system will need a brain layer: persistent intelligence that sits between your models and your storage — independent of any single vendor, IDE, or agent framework.
AI should remember.
Developers should own that memory.
Ratary exists to be that layer. Applications bring models. Ratary brings the brain.
*What is Ratary?*
Ratary is an AI Brain Platform — infrastructure that gives AI:
It sits between AI clients and storage. One brain, many surfaces — Cursor, Claude Code, custom agents, enterprise APIs, and remote MCP hosts.
The runnable deployment is [Ratary Server](#quick-start) — this repository. Ratary is the product; Ratary Server is what you clone and run.
Bring your model. Ratary brings the memory.
*How do I run Ratary Server locally?*
Ratary is the product. Ratary Server is the open-source deployment you run — ontorata/ratary (this repository). @ratary/sdk, @ratary/cli, and Ratary MCP connect to it; sibling Ontorata products use the same source of truth.
Prerequisites: Node.js 24 · SQL metadata store (pick one — Postgres is the template default)
git clone https://github.com/ontorata/ratary.git
cd ratary && npm install cp .env.example .env # Set AUTH_SECRET + DATABASE_URL — see .env.example QUICK START npm run db:apply-postgres-schema npm run setup # wire Ratary MCP for Cursor, Claude Code, … npm run dev
Or use Docker: docker compose --profile postgres up --build — see docs/DOCKER.md.
git clone https://github.com/ontorata/ratary.git
cd ratary && npm install cp .env.example .env # Set AUTH_SECRET + SQL_PROVIDER=d1 + CLOUDFLARE_* / D1_* npm run db:migrate npm run setup npm run dev
Details: [docs/GUIDE.md](docs/GUIDE.md#1-setup) · [docs/CONFIGURATION.md](docs/CONFIGURATION.md)
→ API http://localhost:9876 · Swagger /docs
First REST call: bootstrap once to get an API key (aic_...) — see GUIDE — First REST API key.
# Save your first memory
curl -X POST http://localhost:9876/api/v1/memory \ -H "Authorization: Bearer aic_YOUR_KEY" \ -H "Content-Type: application/json" \ -d '{"title":"Hello brain","project":"demo","content":"Ratary remembers this."}'
Full guide: [docs/GUIDE.md](docs/GUIDE.md) · SDK & MCP examples in docs/examples/
@ratary)Client libraries ship on npm under the `@ratary` scope — product name, published by Ontorata. No server clone required for SDK, CLI, or hosted MCP.
npm install @ratary/sdk@1.1.0
npx @ratary/mcp-server@1.1.3 # remote REST → stdio MCP npm install -g @ratary/cli@1.1.0 # operator CLI
| Package | Version | Install | Role |
|---|---|---|---|
@ratary/sdk | 1.1.0 | npm install @ratary/sdk | Typed REST client + client.admin.* |
@ratary/cli | 1.1.0 | npm install -g @ratary/cli | Operator commands (admin, connectors) |
@ratary/mcp-server | 1.1.3 | npx @ratary/mcp-server | IDE MCP → hosted API |
Set RATARY_BASE_URL and RATARY_API_KEY (aic_...). Details: [packages/README.md](packages/README.md) · remote MCP install.
*Which repository owns what?*
The Visual architecture diagram shows logical layers inside Ratary Server. This diagram shows repository and product relationships — what ships in this repo, what connects to it, and what lives in sibling Ontorata repositories. Both views describe the same platform from different angles.
Throughout this README, Ratary MCP means the official memory MCP implementation (stdio in this repo · npm @ratary/mcp-server for hosted REST). It is not the same as Ontorata MCP (ecosystem gateway — separate repo).
┌─────────────────────────────────────────────────────────────┐
│ Ratary Cloud (opt-in) │ │ optional hosted deployment · not this repo │ └──────────────────────────────┬──────────────────────────────┘ │ ┌──────────────────────────────▼──────────────────────────────┐ │ Ratary Server ← ontorata/ratary (this repo) │ └──────────────────────────────┬──────────────────────────────┘ │ │ │ ▼ ▼ ▼ @ratary/sdk @ratary/cli @ratary/mcp-server (SDK) (CLI) (Ratary MCP · npm) │ │ │ └──────────────┴──────────────┘ │ ┌─────────────────────┴─────────────────────┐ ▼ ▼ ▼ Ontorata MCP Ontorata Studio Ontory Runtime ontorata/ontorata-mcp ontorata/Ontorata-Studio ontorata/ontory-runtime ecosystem product ecosystem product (ADR-2119; was ontorata/ontory)
Infrastructure (ships from ontorata/ratary — server plus client packages):
| Component | Repository | Role |
|---|---|---|
| Ratary Server | ontorata/ratary | Memory engine — REST, persistence, Ratary MCP stdio. You run this. |
| Ratary SDK | npm @ratary/sdk · packages/sdk | Typed REST client for Ratary Server. |
| Ratary CLI | npm @ratary/cli · packages/cli | Operator commands; delegates to Ratary SDK. |
| Ratary MCP | npm @ratary/mcp-server · stdio in repo | Memory MCP — full stdio in clone · npm proxy for hosted REST. |
Ecosystem products (separate repositories — connect to Ratary Server; not bundled here):
| Product | Repository | Role |
|---|---|---|
| Ontorata MCP | ontorata/ontorata-mcp | Ecosystem MCP gateway — Ratary MCP plus additional Ontorata tools. |
| Ontorata Studio | ontorata/Ontorata-Studio | Operator UI — uses @ratary/sdk only. |
| Ontory | ontorata/ontory-runtime | Ontory Runtime — AI orchestration (ADR-2119). Legacy URL ontorata/ontory redirects. |
Ratary Server does not depend on ecosystem product repositories.
*Which MCP should I install?*
| Ratary MCP | Ontorata MCP | |
|---|---|---|
| Layer | Ratary infrastructure | Ontorata ecosystem product |
| What it is | Official memory protocol for Ratary Server | Ecosystem gateway for Ontorata products |
| Scope | Memory — CRUD, search, context, graph | Ratary memory plus additional Ontorata tools |
| Repository | ontorata/ratary · npm @ratary/mcp-server | ontorata/ontorata-mcp |
| Typical `mcp.json` key | ratary | ontorata |
Use Ratary MCP for direct memory access. Use Ontorata MCP for one MCP entry point across the Ontorata stack. Both use Ratary Server as source of truth.
*How is Ratary different from alternatives?*
| Vector DB | Memory API | RAG | Agent framework | Ratary | |
|---|---|---|---|---|---|
| Primary job | Similarity search | Key-value recall | Document Q&A | Tool orchestration | Durable AI memory |
| Structured knowledge & graph | ❌ | ⚠️ | ❌ | ⚠️ | ✅ |
| MCP-native IDE integration | ❌ | ⚠️ | ❌ | ⚠️ | ✅ |
| Token-efficient context assembly | ❌ | ⚠️ | ❌ | ⚠️ | ✅ |
| Self-host & data sovereignty | ✅ | ⚠️ | ⚠️ | ⚠️ | ✅ |
| Clear agent boundary | N/A | ⚠️ | N/A | ❌ bundled | ✅ substrate only |
Ratary complements your stack — it does not replace pgvector, LangGraph, or your agent of choice. See the [Capability matrix](#capability-matrix) for a feature-level comparison.
Why not just pgvector, Mem0, Letta, LangGraph, or RAG?
| If you only use… | You get… | What you miss |
|---|---|---|
| pgvector | Embedding similarity | Structured memory, graph, MCP, context packing |
| Mem0 | Fast hosted memory API | Full self-host, hybrid retrie
Solo se muestra el principio; lee el resto en el repo