# Span (pypi · span-mcp)

Codebase understanding with exact evidence, qualified on every read and re-aligned on change.

- Trust score: 48/100 (low)
- Change this week: +15
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `span-mcp`: 48/100 (this document), [markdown](https://verifymcp.io/servers/pontivus-com-span/span-mcp.md), [page](https://verifymcp.io/servers/pontivus-com-span/span-mcp)

## Channel facts

- Registry: `pypi`
- Package: `span-mcp`
- Version: `0.9.4`
- 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 2026-11-05.

- **Supply Chain Security**: 94/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Declares code that runs automatically (setup.py, a custom setup.py cmdclass, build-time code we could not rule out (a Hatch, PDM or setuptools build hook, a dynamic version we could not read statically, shipped VCS metadata or a stray root module)) and that we could not recognise. It may be perfectly ordinary, but we have not established what it does.
  - 1 of 28 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pontivus-com/span).
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 0 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox 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 Span MCP server?

Span runs locally as a PyPI package, launched with uvx span-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 pontivus-com-span -- uvx span-mcp
```

### Cursor

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

### VS Code

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

### Codex

```bash
codex mcp add pontivus-com-span -- uvx span-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add pontivus-com-span --command uvx --arg span-mcp
```

### Hermes

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

### Netclaw

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

### Vellum

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

### Other

```json
{
  "mcpServers": {
    "pontivus-com-span": {
      "command": "uvx",
      "args": [
        "span-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.

### 2026-11-05 (score 48, +15)

- [security improvement] Malware scan: unverified → pass
- [functional improvement] Security disclosure: unverified → pass

### 2026-11-04 (score 33, −15)

- [security regression] Malware scan: pass → unverified
- [functional regression] Security disclosure: pass → unverified
- [functional] Package version: 0.9.1 → 0.9.4
- [functional] Package version: 0.9.1 → 0.9.2

### 2026-11-03 (score 48, +15)

- [security improvement] Malware scan: unverified → pass
- [functional] Package version: 0.9.0 → 0.9.1

### 2026-11-02 (score 33, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-31 (score 48, 0)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 0.8.3 → 0.9.0

### 2026-10-30 (score 48, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-28 (score 33, −17)

- [security regression] Malware scan: pass → unverified
- [security regression] Install scripts: pass → partial
- [security] The code this package runs automatically changed: its declared build backend → setup.py, a custom setup.py cmdclass, build-time code we could not rule out (a Hatch, PDM or setuptools build hook, a dynamic version we could not read statically, shipped VCS metadata or a stray root module)
- [functional] Package version: 0.8.2 → 0.8.3

### 2026-10-27 (score 50, +15)

- [security improvement] Malware scan: unverified → pass
- [functional] Package version: 0.8.1 → 0.8.2

## 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, Dependencies. The full working is on the page: https://verifymcp.io/servers/pontivus-com-span/span-mcp#diagnostics

## Score history

- 2026-11-05: 48
- 2026-11-04: 33
- 2026-11-03: 48
- 2026-11-02: 33
- 2026-11-01: 48
- 2026-10-31: 48
- 2026-10-30: 48
- 2026-10-29: 33
- 2026-10-28: 33
- 2026-10-27: 50
- 2026-10-26: 35
- 2026-10-25: 50
- 2026-10-24: 35

## Common questions

### What is the Span MCP server?

Span is an MCP server listed in the public MCP registry as io.github.pontivus-com/span. Codebase understanding with exact evidence, qualified on every read and re-aligned on change. This page covers its PyPI package (span-mcp).

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

Span scores 48 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. Its build provenance is signed and verified. 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 Span MCP server still maintained?

Span is still listed as active in the MCP registry. We last reached this channel on 5 November 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 Span MCP server under?

Span declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the Span MCP server?

VerifyMCP ran 9 checks on Span, covering Malware scan, Known CVEs, Install scripts, Dependency health and 5 more. 5 items could not be completed, a gap on our side rather than a finding about Span: Schema quality, Stability, Tool coverage, Tool safety and 1 more. 5 categories score 0 for that reason, because we only credit what we can confirm. Endpoint Security and Transport & Reachability do not apply to a PyPI package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- PyPI project: https://pypi.org/project/span-mcp/
- Socket report: https://socket.dev/pypi/package/span-mcp
- Repository: https://github.com/pontivus-com/span
- Website: https://rolfstreefkerk.com/article/span-mcp
- Changelog RSS feed: https://verifymcp.io/servers/pontivus-com-span/span-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/pontivus-com-span/span-mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pontivus-com-span/span-mcp.json
- HTML version of this page: https://verifymcp.io/servers/pontivus-com-span/span-mcp