# preflight402 (remote · preflight402.ironshell.io)

Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid.

- Trust score: 18/100 (low)
- Change this week: −41
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `preflight402.ironshell.io`: 18/100 (this document), [markdown](https://verifymcp.io/servers/io-ironshell-preflight402/preflight402.md), [page](https://verifymcp.io/servers/io-ironshell-preflight402/preflight402)

## Channel facts

- Endpoint: `https://preflight402.ironshell.io/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## 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 2026-08-03.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.
  - HTTPS not yet verified: we couldn't determine whether a plaintext access path exists.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 0/100
  - Transport check failed: declared streamable-http, but the endpoint returned HTTP 530.
- **Schema Quality & AI Usability**: 0/100
  - Schema not yet verified: we couldn't read the endpoint's schema.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: we couldn't read the endpoint's tools.
- **Capabilities**: 0/100
  - Capabilities not yet verified: we couldn't read the endpoint's capabilities.

**Unverified: 4 categories.** Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add --transport http io-ironshell-preflight402 https://preflight402.ironshell.io/mcp
```

### Codex

```toml
[mcp_servers.io-ironshell-preflight402]
url = "https://preflight402.ironshell.io/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-ironshell-preflight402": {
      "type": "remote",
      "url": "https://preflight402.ironshell.io/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add io-ironshell-preflight402 --url https://preflight402.ironshell.io/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  io-ironshell-preflight402:
    url: "https://preflight402.ironshell.io/mcp"
```

### Other

```json
{
  "mcpServers": {
    "io-ironshell-preflight402": {
      "type": "http",
      "url": "https://preflight402.ironshell.io/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.

### 2026-08-03 (score 18, −43)

- [security regression] Endpoint reachability: reachable → not serving MCP
- [security regression] Stability: 0.23 → unverified
- [security regression] Transport: pass → fail
- [security] Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-08-02 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 60, −1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 61, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 59, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 59)

First indexed and scored.

## MCP tools (1)

### `preflight` (~162 tokens)

x402 Preflight Trust Check

One free call before your agent pays.

Probes the URL (no wallet, payment, or auth) and returns a
trust-preview.v1 verdict: liveness and latency, TLS validity, the 402
payment handshake with protocol detection (x402 v1/v2, MPP-capable),
detected networks/asset/price with a USD estimate, ERC-8004 identity
binding with Sybil-filtered reputation for the payee (which can adjust
the recommendation), and a proceed / caution / avoid recommendation with
human-readable reasons. Paid-tier fields (uptime history, reseller
analysis) are present but null on the free tier.

Input parameters:

- `url` (string, required): Absolute https URL of the x402 or MPP payment endpoint to check

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/io-ironshell-preflight402/preflight402#diagnostics

## Score history

- 2026-08-03: 18
- 2026-08-02: 61
- 2026-08-01: 60
- 2026-07-31: 60
- 2026-07-30: 61
- 2026-07-29: 61
- 2026-07-28: 60
- 2026-07-27: 59
- 2026-07-26: 59

## Links

- Remote endpoint: https://preflight402.ironshell.io/mcp
- Repository: https://github.com/duskwire/preflight402
- Website: https://preflight402.ironshell.io/
- Changelog RSS feed: https://verifymcp.io/servers/io-ironshell-preflight402/preflight402/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/io-ironshell-preflight402/preflight402/changelog.json
- HTML version of this page: https://verifymcp.io/servers/io-ironshell-preflight402/preflight402