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pREST MCP server

by prest·io.github.prest/prest·v0.1.3
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Stdio MCP adapter bridging AI clients to pREST’s HTTP /_mcp endpoint for PostgreSQL APIs.

C68/100grade C
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Safety scan
C68/100

full report

Adoption
New

0 stars

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pREST tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it

no findings
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 78 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 68/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How pREST compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
68/100
higher than 30% of 48,255 servers

Install pREST in Claude Code, Cursor or VS Code

claude mcp add prest -- docker run -i --rm ghcr.io/prest/prest-mcp-adapter:0.1.3
Add to Cursor

What the publisher says

From the pREST repository's README, as published. We do not edit it. Read it on GitHub

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

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 claudedesktopconfig.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 PRESTMCPTOKEN 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.

Nothing above is checked by us. What we check is on the safety report.

pREST: common questions

Is pREST MCP server safe?
With care: it is graded C, so read the findings first (68/100). Read the pREST safety report
How do I install pREST?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does pREST need an API key?
Yes. The registry entry asks for PREST_MCP_TOKEN.
Is pREST maintained?
The last commit was 117 days ago (2026-07-10). The latest release is v0.1.3.