# Agent Account Index (remote · agent-account-index.vercel.app)

Can an AI agent hold an account at a service? Verdict, owner of record, quoted terms clause.

- Trust score: 65/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- remote · `agent-account-index.vercel.app`: 65/100 (this document), [markdown](https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index.md), [page](https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index)

## Channel facts

- Endpoint: `https://agent-account-index.vercel.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2026-10-12`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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 2026-10-18.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 2 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 316 tokens (~158/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Agent Account Index MCP server?

Agent Account Index is a hosted endpoint at https://agent-account-index.vercel.app/mcp, so there is nothing to install locally. 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 --transport http mycelium-being-agent-account-index 'https://agent-account-index.vercel.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "mycelium-being-agent-account-index": {
      "url": "https://agent-account-index.vercel.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "mycelium-being-agent-account-index": {
      "type": "http",
      "url": "https://agent-account-index.vercel.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.mycelium-being-agent-account-index]
url = "https://agent-account-index.vercel.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mycelium-being-agent-account-index": {
      "type": "remote",
      "url": "https://agent-account-index.vercel.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mycelium-being-agent-account-index --url 'https://agent-account-index.vercel.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  mycelium-being-agent-account-index:
    url: "https://agent-account-index.vercel.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "mycelium-being-agent-account-index": {
      "Transport": "http",
      "Url": "https://agent-account-index.vercel.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add mycelium-being-agent-account-index -t streamable-http -u 'https://agent-account-index.vercel.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "mycelium-being-agent-account-index": {
      "type": "http",
      "url": "https://agent-account-index.vercel.app/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-10-18 (score 65, −1)

- [security] Tool “can_an_agent_hold_an_account” rewrote its description, which is the text the model reads
- [security] Tool “list_named_non_human_routes” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: pass → fail

### 2026-10-17 (score 66, 0)

- [functional] Server version: 2026-10-13 → 2026-10-15

### 2026-10-16 (score 66, +1)

- [security] Tool “can_an_agent_hold_an_account” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 89 → 107
- [functional improvement] Stability: unverified → 0.03

### 2026-10-15 (score 65)

First indexed and scored.

## MCP tools (2)

### `can_an_agent_hold_an_account` (~189 tokens)

Check whether a non-human actor may hold an account at a service. Call this BEFORE creating an account anywhere. Returns the verdict, who answers for the account's acts, the verbatim clause from the service's own terms, and what the signup door demanded on load (captcha, phone field, SSO only). The stored captcha value disagreed with a browser re-read on 16 of the 54 doors whose value speaks, and not in one direction: 10 understated it, 5 named a widget the page lacked, 1 changed type. Where signup_door.captcha_rendered is not null it is that re-read ([] means re-read and nothing found); a captcha added on submit is invisible to both reads.

Input parameters:

- `service` (string, required): Service name, e.g. "GitHub", "Stripe", "Supabase". Case-insensitive, matched on substring.

### `list_named_non_human_routes` (~99 tokens)

List every service that documents an identity a non-human actor may hold. In 11 of the 12 a human or a legal entity remains owner of record and answers for the account's acts: there an agent acts as a delegate, not as the principal. 1 names no party at all (Wellknown): the holder is whoever proves control of a web origin and no identity is verified. Each row carries agent_as_principal.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index#diagnostics

## Score history

- 2026-10-18: 65
- 2026-10-17: 66
- 2026-10-16: 66
- 2026-10-15: 65

## Common questions

### What is the Agent Account Index MCP server?

Agent Account Index is an MCP server listed in the public MCP registry as io.github.mycelium-being/agent-account-index. Can an AI agent hold an account at a service? Verdict, owner of record, quoted terms clause. This page covers its hosted endpoint (https://agent-account-index.vercel.app/mcp).

### Is the Agent Account Index MCP server safe to use?

Agent Account Index scores 65 out of 100 on VerifyMCP. 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 Agent Account Index MCP server expose?

Agent Account Index exposes 2 tools: can_an_agent_hold_an_account, list_named_non_human_routes. Their descriptions and schemas cost roughly 288 tokens of context every time the server is loaded.

### Does the Agent Account Index MCP server require authentication?

No. We connected to Agent Account Index without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Agent Account Index MCP server still maintained?

Agent Account Index is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://agent-account-index.vercel.app/mcp
- Website: https://agent-account-index.vercel.app/
- Changelog RSS feed: https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index.xml
- Changelog JSON feed: https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index.json
- HTML version of this page: https://verifymcp.io/servers/mycelium-being-agent-account-index/agent-account-index