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pREST

Registre officiel Données et bases de données

Stdio MCP adapter bridging AI clients to pREST’s HTTP /_mcp endpoint for PostgreSQL APIs.

Code source Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

OCI package ghcr.io/prest/prest-mcp-adapter:0.1.3
Claude Code 
claude mcp add prest -e 'PREST_MCP_URL=<PREST_MCP_URL>' -e 'PREST_MCP_TOKEN=<your prest_mcp_token>' -e 'PREST_MCP_TIMEOUT_MS=<PREST_MCP_TIMEOUT_MS>' -- docker run -i --rm ghcr.io/prest/prest-mcp-adapter:0.1.3
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "prest": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "ghcr.io/prest/prest-mcp-adapter:0.1.3"
            ],
            "env": {
                "PREST_MCP_URL": "<PREST_MCP_URL>",
                "PREST_MCP_TOKEN": "<your prest_mcp_token>",
                "PREST_MCP_TIMEOUT_MS": "<PREST_MCP_TIMEOUT_MS>"
            }
        }
    }
}

Variables d'environnement

  • PREST_MCP_URL obligatoire URL of your running pREST HTTP MCP endpoint, for example http://localhost:3000/_mcp
  • PREST_MCP_TOKEN secret Optional bearer token used to authenticate with the pREST MCP endpoint.
  • PREST_MCP_TIMEOUT_MS Optional HTTP timeout in milliseconds. Defaults to 30000.

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. pREST MCP Adapter
  2. Requirements
  3. Environment variables
  4. Install
  5. Local usage
  6. MCP client configuration
  7. Security recommendation
  8. Development
  9. License

pREST MCP Adapter

Official stdio adapter for pREST’s HTTP MCP endpoint.

This adapter lets MCP clients that require stdio connect to a running pREST instance exposing an HTTP MCP endpoint at /_mcp.

MCP client / AI IDE
        ↓ stdio (NDJSON JSON-RPC)
prest-mcp
        ↓ HTTP POST
http://localhost:3000/_mcp
        ↓
pREST

The adapter is a tiny transport bridge. It does not introspect schemas, generate SQL, or implement MCP tools. Those live in pREST.

Requirements

  • A running pREST instance with the /_mcp route available
  • Go 1.26+ (to build from source)

Environment variables

VariableRequiredDefaultDescription
PREST_MCP_URLyes—URL of the pREST HTTP MCP endpoint, e.g. http://localhost:3000/_mcp
PREST_MCP_TOKENno—Bearer token when pREST auth is enabled
PREST_MCP_TIMEOUT_MSno30000HTTP timeout in milliseconds

Install

From source
go install github.com/prest/prest-mcp-adapter/cmd/prest-mcp@latest
Docker / OCI
docker pull ghcr.io/prest/prest-mcp-adapter:0.1.3

Local usage

PREST_MCP_URL=http://localhost:3000/_mcp prest-mcp
With token
PREST_MCP_URL=https://api.example.com/_mcp \
PREST_MCP_TOKEN=secret \
prest-mcp
Docker usage
docker run --rm -i \
  -e PREST_MCP_URL=http://host.docker.internal:3000/_mcp \
  ghcr.io/prest/prest-mcp-adapter:0.1.3

MCP client configuration

Cursor

Add to your MCP settings (e.g. .cursor/mcp.json):

{
  "mcpServers": {
    "prest": {
      "command": "prest-mcp",
      "env": {
        "PREST_MCP_URL": "http://localhost:3000/_mcp"
      }
    }
  }
}
Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "prest": {
      "command": "prest-mcp",
      "env": {
        "PREST_MCP_URL": "http://localhost:3000/_mcp"
      }
    }
  }
}
Generic MCP client

Any client that can launch a stdio MCP server:

PREST_MCP_URL=http://localhost:3000/_mcp prest-mcp

Protocol messages are newline-delimited JSON-RPC on stdin/stdout. Logs go only to stderr.

Security recommendation

Use a read-only PostgreSQL user for AI/MCP workflows unless write access is explicitly required.

Do not expose unauthenticated MCP endpoints publicly.

Prefer local or private-network pREST MCP endpoints.

When pREST auth is enabled, set PREST_MCP_TOKEN to a valid JWT.

Development

make test       # go test -race ./... and overall coverage >= 80%
make coverage   # coverage gate only
make vet
make build      # writes bin/prest-mcp

License

MIT — see LICENSE.

Questions fréquentes

Qu'est-ce que pREST ?

Stdio MCP adapter bridging AI clients to pREST’s HTTP /_mcp endpoint for PostgreSQL APIs.

Comment installer pREST ?

Il s'exécute sur votre machine. Dans Claude Code : claude mcp add prest -e 'PREST_MCP_URL=<PREST_MCP_URL>' -e 'PREST_MCP_TOKEN=<your prest_mcp_token>' -e 'PREST_MCP_TIMEOUT_MS=<PREST_MCP_TIMEOUT_MS>' -- docker run -i --rm ghcr.io/prest/prest-mcp-adapter:0.1.3. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour pREST ?

Oui. Il attend PREST_MCP_URL, PREST_MCP_TOKEN, à renseigner dans sa configuration.

pREST est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient pREST ?

Il est publié par prest. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.