# RationalBloks (pypi · rationalbloks-mcp)

Deploy production REST and Neo4j Graph APIs from JSON schemas in seconds. 49 tools.

- Trust score: 16/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `mcp.rationalbloks.com`: 64/100, [markdown](https://verifymcp.io/servers/com-rationalbloks-mcp/mcp.md), [page](https://verifymcp.io/servers/com-rationalbloks-mcp/mcp)
- pypi · `rationalbloks-mcp`: 16/100 (this document), [markdown](https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp.md), [page](https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp)

## Channel facts

- Registry: `pypi`
- Package: `rationalbloks-mcp`
- Version: `0.14.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Supply Chain Security**: 32/100
  - Malware scan not yet available for this package.
  - CVE check failed: a known high-severity CVE affects starlette 0.52.1, a direct dependency. A fixed version is available.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - 1 of 33 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 32/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: the license (Proprietary) isn't a recognized OSI-approved license.
  - Actively maintained (last published 1 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you.

## Install

### How do I install the RationalBloks MCP server?

RationalBloks runs locally as a PyPI package, launched with uvx rationalbloks-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add com-rationalbloks-mcp -- uvx rationalbloks-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-rationalbloks-mcp": {
      "command": "uvx",
      "args": [
        "rationalbloks-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-rationalbloks-mcp": {
      "command": "uvx",
      "args": [
        "rationalbloks-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-rationalbloks-mcp -- uvx rationalbloks-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-rationalbloks-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "rationalbloks-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-rationalbloks-mcp --command uvx --arg rationalbloks-mcp
```

### Hermes

```yaml
mcp_servers:
  com-rationalbloks-mcp:
    command: "uvx"
    args: ["rationalbloks-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-rationalbloks-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "rationalbloks-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-rationalbloks-mcp -t stdio -c uvx -a rationalbloks-mcp
```

### Other

```json
{
  "mcpServers": {
    "com-rationalbloks-mcp": {
      "command": "uvx",
      "args": [
        "rationalbloks-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-19 (score 16, −15)

- [security regression] Malware scan: pass → unverified

### 2026-09-18 (score 31, 0)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 0.13.5 → 0.14.0

### 2026-09-17 (score 31, 0)

- [security regression] Malware scan: pass → unverified
- [security] Tool safety: Tool safety not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no tool text to scan.
- [security] Stability: Stability not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to compare.
- [functional] Tool coverage: Tool coverage not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no tool definitions to assess.
- [functional] Capabilities: Protocol version not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we never saw its MCP handshake.
- [functional] Schema quality: Schema quality not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to assess.
- [functional] Package version: 0.13.4 → 0.13.5

### 2026-09-16 (score 31, 0)

- [security regression] Malware scan: pass → unverified
- [security] Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [functional] Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet.
- [functional] Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Package version: 0.13.0 → 0.13.4
- [functional] Package version: 0.13.0 → 0.13.3
- [functional] Package version: 0.13.0 → 0.13.2
- [functional] Package version: 0.13.0 → 0.13.1

### 2026-09-15 (score 31, +15)

- [security improvement] Malware scan: unverified → pass
- [functional] Package version: 0.12.2 → 0.13.0

### 2026-09-14 (score 16, 0)

- [functional] Package version: 0.12.1 → 0.12.2

### 2026-09-13 (score 16)

First indexed and scored.

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp#diagnostics

## Score history

- 2026-09-20: 16
- 2026-09-19: 16
- 2026-09-18: 31
- 2026-09-17: 31
- 2026-09-16: 31
- 2026-09-15: 31
- 2026-09-14: 16
- 2026-09-13: 16

## Common questions

### What is the RationalBloks MCP server?

RationalBloks is an MCP server listed in the public MCP registry as com.rationalbloks/mcp. Deploy production REST and Neo4j Graph APIs from JSON schemas in seconds. 49 tools. This page covers its PyPI package (rationalbloks-mcp).

### Is the RationalBloks MCP server safe to use?

RationalBloks scores 16 out of 100 on VerifyMCP. We recorded 10 known advisories against it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### Is the RationalBloks MCP server still maintained?

RationalBloks is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the RationalBloks MCP server under?

RationalBloks declares the Proprietary licence, which is not on the OSI-approved list. Read the terms before using it at work, and note this covers the source only, not the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/rationalbloks-mcp/
- Socket report: https://socket.dev/pypi/package/rationalbloks-mcp
- Repository: https://github.com/rationalbloks/rationalbloks-mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-rationalbloks-mcp/rationalbloks-mcp