# delboy-mcp (pypi · delboy-mcp)

DELBOY companion-MCP — neutral provenance/attestation layer for agentic finance. Witness only: signs

- Trust score: 68/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- pypi · `delboy-mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/csoai-org-delboy-mcp/delboy-mcp.md), [page](https://verifymcp.io/servers/csoai-org-delboy-mcp/delboy-mcp)

## Channel facts

- Registry: `pypi`
- Package: `delboy-mcp`
- Version: `1.0.1`
- 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**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - 1 of 23 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 19/100
  - Repository check failed: no source repository is declared.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 4 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 68/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 500 tokens (~100/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 47/100
  - Stability observed for 14 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the delboy-mcp server?

delboy-mcp runs locally as a PyPI package, launched with uvx delboy-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 csoai-org-delboy-mcp -- uvx delboy-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "csoai-org-delboy-mcp": {
      "command": "uvx",
      "args": [
        "delboy-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "csoai-org-delboy-mcp": {
      "command": "uvx",
      "args": [
        "delboy-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add csoai-org-delboy-mcp -- uvx delboy-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add csoai-org-delboy-mcp --command uvx --arg delboy-mcp
```

### Hermes

```yaml
mcp_servers:
  csoai-org-delboy-mcp:
    command: "uvx"
    args: ["delboy-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "csoai-org-delboy-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "delboy-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add csoai-org-delboy-mcp -t stdio -c uvx -a delboy-mcp
```

### Other

```json
{
  "mcpServers": {
    "csoai-org-delboy-mcp": {
      "command": "uvx",
      "args": [
        "delboy-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 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 66, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-14 (score 51, −11)

- [security regression] Malware scan: pass → unverified
- [functional improvement] Stability: unverified → 0.27

### 2026-09-07 (score 62, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-06 (score 47)

First indexed and scored.

## MCP tools (5)

### `attest_pending_action` (~144 tokens)

Attest Pending Action

Witness a consequential action BEFORE it executes (phase=pending).

Returns a signed pre-attestation receipt. `instruction` is hashed, never stored raw.
\`principal` must carry a principal_id_hash (PII-minimized), not raw identity.
For meaningful-oversight regimes (UK DUAA / EU Art.14 / MAS), populate
policy.approval_evidence (approval_method, what_shown_hash, dwell_ms, human_edited).

Input parameters:

- `agent` (object, required)
- `instruction` (string, required)
- `mcp_call` (object, required)
- `policy` (object, required)
- `principal` (object, required)
- `underlying_record_ref`

### `attest_completed_action` (~135 tokens)

Attest Completed Action

Witness the OUTCOME of a consequential action AFTER it executes (phase=completed).

\`result` carries upstream_response_hash / outcome / fingerprint. Provide
underlying_record_ref so the full compliant record (ISO 20022 / FINRA 4511 telemetry)
is retrievable — DELBOY witnesses over it, it does not replace it.

Input parameters:

- `agent` (object, required)
- `content_credentials`
- `instruction` (string, required)
- `mcp_call` (object, required)
- `policy` (object, required)
- `principal` (object, required)
- `result` (object, required)
- `underlying_record_ref`

### `attest_terminal` (~83 tokens)

Attest Terminal

Kill-switch / guardrail-halt record (phase=terminal).

Written when a guardrail fails and the action is blocked. Records why and seals it.

Input parameters:

- `agent` (object, required)
- `instruction` (string, required)
- `mcp_call` (object, required)
- `policy` (object, required)
- `principal` (object, required)
- `reason` (string, required)

### `verify_chain` (~24 tokens)

Verify Chain

Verify the full attestation chain (link integrity + every Ed25519 signature).

### `delboy_info` (~28 tokens)

Delboy Info

What DELBOY is, what it deliberately is not, and the regimes it maps to.

## Diagnostics

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

## Score history

- 2026-09-20: 68
- 2026-09-19: 68
- 2026-09-18: 67
- 2026-09-17: 67
- 2026-09-16: 66
- 2026-09-15: 66
- 2026-09-14: 51
- 2026-09-13: 62
- 2026-09-12: 62
- 2026-09-11: 62
- 2026-09-10: 62
- 2026-09-09: 62
- 2026-09-08: 62
- 2026-09-07: 62
- 2026-09-06: 47

## Common questions

### What is the delboy-mcp server?

delboy-mcp is listed in the public MCP registry as io.github.CSOAI-ORG/delboy-mcp. DELBOY companion-MCP, neutral provenance/attestation layer for agentic finance. Witness only: signs. This page covers its PyPI package (delboy-mcp).

### Is the delboy-mcp server safe to use?

delboy-mcp scores 68 out of 100 on VerifyMCP. We found no known CVEs affecting 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.

### What tools does the delboy-mcp server expose?

delboy-mcp exposes 5 tools: attest_pending_action, attest_completed_action, attest_terminal, verify_chain, delboy_info. Their descriptions and schemas cost roughly 414 tokens of context every time the server is loaded.

### Is the delboy-mcp server still maintained?

delboy-mcp 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 delboy-mcp server under?

delboy-mcp 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.

## Links

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