# `com.yieldprobe/defi-intel` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/com.yieldprobe/defi-intel
- JSON: https://anlyon.dev/api/v1/servers/com.yieldprobe/defi-intel
- Version: 0.2.0 (active)
- Publisher: com.yieldprobe (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T18:11:15.211Z

Title and description, as the publisher wrote them:

```untrusted-server-text
yieldprobe: DeFi intel for agents
Paid DeFi data for agents via x402 on Base: yields, APY moves, stablecoin pegs, token risk.
```

Scanned 2026-10-21T18:58:06.378Z over streamable-http.

**5 tools: 4 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 4 | ask |
| Only reads | read | 1 | allow |

## Exfil surface

No private-data -> untrusted-input -> outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

| Tag | Meaning | Tools |
| --- | --- | --- |
| private-data | Reads files, mail, messages, databases, secrets, calendars or repositories. | none |
| untrusted-input | Brings in text someone else can write: web pages, inbound email, messages, issues and comments. | none |
| outbound | Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL. | none |

## Findings

No check matched anything in these tool definitions.


## Changes things (4)

Creates or changes something that can be changed back. Claude Code: ask.

### `defi_yield_movers`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Pools with the largest APY change over 1d or 7d, up and down. Anomaly feed. $0.02 per call.
```

### `stablecoin_peg_monitor`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Every depegged USD stablecoin plus the largest by supply, with price deviation and 1d/7d supply change. $0.02 per call.
```

### `token_security_check`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Honeypot, taxes, mintable, proxy, owner powers and holder concentration with a 0-100 risk score. $0.02 per call.
```

### `yieldprobe_info`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Free. Prices, payment network, HTTP endpoints and how to pay. Call this first if unsure.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `defi_top_yields`

- The description's first verb is "compare": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Compare DeFi yield candidates before choosing a deposit: filter by chain, stablecoin exposure, project and min TVL; returns spot APY, 30d mean, volatility and IL risk. Ranked by spot APY, not a safety verdict or executable deposit quote. DefiLlama data, signed and timestamped. $0.02 USDC on Base per call.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `defi-intel`:

```json
{
  "permissions": {
    "allow": [
      "mcp__defi-intel__defi_top_yields"
    ],
    "ask": [
      "mcp__defi-intel__defi_yield_movers",
      "mcp__defi-intel__stablecoin_peg_monitor",
      "mcp__defi-intel__token_security_check",
      "mcp__defi-intel__yieldprobe_info"
    ],
    "deny": []
  }
}
```

## Remote posture

What an anonymous client saw at the remote endpoint, last 2026-10-22T14:44:40.733Z, unchanged since 2026-10-22T14:44:40.733Z. No credentials were sent and no tool was called. Values are shown as the endpoint returned them. Method: https://anlyon.dev/methodology#remote-posture

| Fact | Observed |
| --- | --- |
| Reachable | `yes` |
| HTTP status of an anonymous initialize | `200` |
| tools/list served without credentials | `yes` |
| Tools that change things, listed without credentials | `4` |
| Protocol version | `2025-06-18` |
| WWW-Authenticate on 401 | `not observed` |
| resource_metadata in WWW-Authenticate | `none` |
| RFC 9728 protected resource metadata | `none` |
| Authorization servers | `none` |
| Legacy HTTP+SSE transport | `no` |
| Dynamic client registration | `not observed` |
| Client ID metadata documents | `not observed` |

- **warn** Tools that change things, listed to anyone ([unauth-remote-writes](https://anlyon.dev/methodology#unauth-remote-writes))

```untrusted-server-text
The endpoint served tools/list without credentials, and the list has 4 tools that change things (4 write). Whether a call also works without credentials was not tested: tools are never called.

https://yieldprobe.com/mcp: tools/list returned 5 tools to an anonymous client, including defi_yield_movers (write), stablecoin_peg_monitor (write), token_security_check (write), yieldprobe_info (write)
```