# xStocker (npm · @xstocker/mcp)

Build buy/sell orders for tokenized US stocks (xStocks) on Solana. Non-custodial.

- Trust score: 65/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-17

## Components

- npm · `@xstocker/mcp`: 65/100 (this document), [markdown](https://verifymcp.io/servers/com-xstocker-agent-mcp/xstocker-mcp.md), [page](https://verifymcp.io/servers/com-xstocker-agent-mcp/xstocker-mcp)

## Channel facts

- Registry: `npm`
- Package: `@xstocker/mcp`
- Version: `0.2.0`
- 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 2026-10-17.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 32 of 94 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 (MIT).
  - Actively maintained (last published 5 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 549 tokens (~137/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - 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**: 96/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 88% 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **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

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

xStocker runs locally as an npm package, launched with npx -y @xstocker/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-xstocker-agent-mcp -- npx -y @xstocker/mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-xstocker-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@xstocker/mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-xstocker-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@xstocker/mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-xstocker-agent-mcp -- npx -y @xstocker/mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add com-xstocker-agent-mcp --command npx --arg -y --arg @xstocker/mcp
```

### Hermes

```yaml
mcp_servers:
  com-xstocker-agent-mcp:
    command: "npx"
    args: ["-y", "@xstocker/mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-xstocker-agent-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@xstocker/mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-xstocker-agent-mcp -t stdio -c npx -a -y @xstocker/mcp
```

### Other

```json
{
  "mcpServers": {
    "com-xstocker-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@xstocker/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.

### 2026-10-14 (score 65, +32)

- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Schema quality: fail
- [functional] First check of Tool coverage: 88
- [functional] First check of Schema quality: excellent
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: fail

### 2026-10-12 (score 33)

First indexed and scored.

## MCP tools (4)

### `list_assets` (~73 tokens)

List tradable xStocks

List tradable tokenized stocks/ETFs (xStocks) on Solana with tickers and accepted pay tokens. Call this before build_order to get valid asset symbols. xStocks are issued by Backed Finance AG and are NOT available to U.S. citizens or residents. Trading tokenized equities involves risk of loss.

### `build_order` (~330 tokens)

Build a buy/sell order

Build (NOT execute) a buy or sell order for an xStock. Nothing is traded and no funds move: this returns a quote (details) and a Solana Pay link (solanaPayUrl). Show the details (amount in, expected out, fee) to the user and give them the link or QR code: their wallet opens it and they approve there with their OWN wallet. For a buy, `amount` is how much pay_token to spend. For a sell, `amount` is how many xStock to sell, in the units the wallet shows (up to 8 decimals), or "max" to sell the entire balance. If a referral partner is configured on this server, details.partnerFee shows the extra fee paid to that partner. xStocks are issued by Backed Finance AG and are NOT available to U.S. citizens or residents. Trading tokenized equities involves risk of loss.

Input parameters:

- `amount` (required): Buy: amount of pay_token to spend. Sell: amount of the xStock to sell in wallet units (number or decimal string, up to 8 decimals), or "max" to sell the whole balance.
- `asset` (string, required): xStock ticker from list_assets, e.g. "NVDAx"
- `include_transaction` (boolean): Also return the base64 unsigned transaction. Only for agents that have their own wallet signer.
- `pay_token` (string): The non-xStock side of the trade
- `side` (string)
- `wallet` (string, required): The user's Solana wallet address (public address only, never a private key)

### `get_order_status` (~42 tokens)

Check trade status on-chain

Check whether a signed and broadcast Solana transaction landed (processed/confirmed/finalized/failed/not_found).

Input parameters:

- `signature` (string, required): Solana transaction signature

### `check_partner` (~104 tokens)

Check a referral partner wallet

Check that a wallet can receive referral fees. There is no registration: a partner is just a Solana wallet address, set on this server with XSTOCKER_PARTNER_WALLET. USDC fees land in the wallet's USDC token account (it must exist), SOL fees in the wallet itself. Only use if the user asks about becoming a partner.

Input parameters:

- `wallet` (string, required): The user's Solana wallet address (public address only, never a private key)

## Diagnostics

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

## Score history

- 2026-10-17: 65
- 2026-10-16: 65
- 2026-10-15: 65
- 2026-10-14: 65
- 2026-10-13: 33
- 2026-10-12: 33

## Common questions

### What is the xStocker MCP server?

xStocker is an MCP server listed in the public MCP registry as com.xstocker/agent-mcp. Build buy/sell orders for tokenized US stocks (xStocks) on Solana. Non-custodial. This page covers its npm package (@xstocker/mcp).

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

xStocker scores 65 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 October 2026. It declares no install or post-install scripts. 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 xStocker MCP server expose?

xStocker exposes 4 tools: list_assets, build_order, get_order_status, check_partner. Their descriptions and schemas cost roughly 549 tokens of context every time the server is loaded.

### Is the xStocker MCP server still maintained?

xStocker is still listed as active in the MCP registry. We last reached this channel on 17 October 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 xStocker MCP server under?

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

## Links

- npm package: https://www.npmjs.com/package/@xstocker/mcp
- Socket report: https://socket.dev/npm/package/@xstocker/mcp
- Website: https://xstocker.com/agents
- Changelog RSS feed: https://verifymcp.io/servers/com-xstocker-agent-mcp/xstocker-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-xstocker-agent-mcp/xstocker-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-xstocker-agent-mcp/xstocker-mcp