# io.github.BlackBoxEngineering/agent-envelope-mcp (npm · agent-envelope-mcp)

Neutral MCP server for AgentEnvelope authority: sovereign verify + vault verify/lookup/mint.

- Trust score: 63/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `agent-envelope-mcp`: 63/100 (this document), [markdown](https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp.md), [page](https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp)

## Channel facts

- Registry: `npm`
- Package: `agent-envelope-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 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 287 tokens (~71/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add blackboxengineering-agent-envelope-mcp -- npx -y agent-envelope-mcp
```

### Codex

```bash
codex mcp add blackboxengineering-agent-envelope-mcp -- npx -y agent-envelope-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "blackboxengineering-agent-envelope-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "agent-envelope-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add blackboxengineering-agent-envelope-mcp --command npx --arg -y --arg agent-envelope-mcp
```

### Hermes

```yaml
mcp_servers:
  blackboxengineering-agent-envelope-mcp:
    command: "npx"
    args: ["-y", "agent-envelope-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "blackboxengineering-agent-envelope-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "agent-envelope-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.

### 2026-08-02 (score 63)

First indexed and scored.

## MCP tools (4)

### `ae_verify_sovereign` (~85 tokens)

Verify (sovereign, offline)

Verify a signed message against a known agent address. Pure crypto, no vault, no API key, no network. Verification is always free.

Input parameters:

- `expectedAddress` (string, required): The agent's 0x address to check against
- `message` (object, required): The exact signed message object
- `signature` (string, required): 0x-prefixed 65-byte signature

### `ae_get_agent` (~40 tokens)

Look up registered agent

Fetch the vault-registered public record for an agent id. Requires a vault-issued API key.

Input parameters:

- `agentId` (string, required): The registered agent id

### `ae_verify_action` (~94 tokens)

Verify action (vault-anchored)

Verify a signed action against the vault-held record for an agent. Requires a vault-issued API key.

Input parameters:

- `actionIndex` (integer, required): The action index
- `agentId` (string, required): The registered agent id
- `expectedActionEnvelopeHash` (string): Optional expected action-envelope hash
- `payload` (object, required): The signed action payload
- `signature` (string, required): 0x-prefixed 65-byte signature

### `ae_mint` (~68 tokens)

Mint capability (governance event)

Mint a capability through the vault from a MintDelegate and a signed MintRequest. Returns a mint receipt. Requires a vault-issued API key. This is a governed action.

Input parameters:

- `delegate` (object, required): The vault-issued MintDelegate
- `request` (object, required): The bot-signed MintRequest

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp#diagnostics

## Score history

- 2026-08-03: 63
- 2026-08-02: 63

## Links

- npm package: https://www.npmjs.com/package/agent-envelope-mcp
- Socket report: https://socket.dev/npm/package/agent-envelope-mcp
- Repository: https://github.com/BlackBoxEngineering/agent-envelope-mcp
- Changelog RSS feed: https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/blackboxengineering-agent-envelope-mcp/agent-envelope-mcp