# heade.rs (remote · heade.rs)

Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.

- Trust score: 77/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-07

## Components

- remote · `heade.rs`: 77/100 (this document), [markdown](https://verifymcp.io/servers/rs-heade-lookup/heade.md), [page](https://verifymcp.io/servers/rs-heade-lookup/heade)

## Channel facts

- Endpoint: `https://heade.rs/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-10-07.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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 (excellent).
  - Context-footprint check failed: tool/resource definitions use about 376 tokens (~376/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 30/100
  - Stability observed for 9 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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the heade.rs MCP server?

heade.rs is a hosted endpoint at https://heade.rs/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 rs-heade-lookup 'https://heade.rs/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "rs-heade-lookup": {
      "url": "https://heade.rs/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "rs-heade-lookup": {
      "type": "http",
      "url": "https://heade.rs/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.rs-heade-lookup]
url = "https://heade.rs/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "rs-heade-lookup": {
      "type": "remote",
      "url": "https://heade.rs/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add rs-heade-lookup --url 'https://heade.rs/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  rs-heade-lookup:
    url: "https://heade.rs/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "rs-heade-lookup": {
      "Transport": "http",
      "Url": "https://heade.rs/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add rs-heade-lookup -t streamable-http -u 'https://heade.rs/mcp'
```

### Other

```json
{
  "mcpServers": {
    "rs-heade-lookup": {
      "type": "http",
      "url": "https://heade.rs/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.

### 2026-10-07 (score 77, +2)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 30. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-03 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-01 (score 74, +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.

### 2026-09-29 (score 73, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-28 (score 72)

First indexed and scored.

## MCP tools (1)

### `lookup` (~259 tokens)

Look up a domain, IP address or network

Look up a domain, IP address or network (AS number) on heade.rs and return its report. For a domain or IP address: where it's hosted (network, BGP prefix, RPKI, location, cloud region, CDN), registration (RDAP/WHOIS), DNS records and DNSSEC, email security (SPF, DMARC, MTA-STS, BIMI), the certificate, a security-header grade and the response headers, the website's tech stack with end-of-life and vulnerability checks, which AI crawlers it lets in and what it offers agents, and open ports from Shodan InternetDB. For an AS number: its prefixes, RPKI and ASPA, upstreams and peers, internet exchanges and registration. Data is live or mirrored within the hour; a lookup takes a few seconds.

Input parameters:

- `format` (string): markdown (the default, about 3,000 tokens for a domain) or json (every field, several times longer).
- `query` (string, required): A domain (example.com), IPv4 or IPv6 address (1.1.1.1, 2606:4700::1111), AS number (AS13335) or URL (the hostname is used).

## Diagnostics

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

## Score history

- 2026-10-07: 77
- 2026-10-04: 75
- 2026-10-03: 75
- 2026-10-02: 74
- 2026-10-01: 74
- 2026-09-30: 73
- 2026-09-29: 73
- 2026-09-28: 72

## Common questions

### What is the heade.rs MCP server?

heade.rs is an MCP server listed in the public MCP registry as rs.heade/lookup. Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers. This page covers its hosted endpoint (https://heade.rs/mcp).

### Is the heade.rs MCP server safe to use?

heade.rs scores 77 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 heade.rs MCP server expose?

heade.rs exposes 1 tool: lookup. Their descriptions and schemas cost roughly 259 tokens of context every time the server is loaded.

### Does the heade.rs MCP server require authentication?

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

### Is the heade.rs MCP server still maintained?

heade.rs is still listed as active in the MCP registry. We last reached this channel on 7 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://heade.rs/mcp
- Website: https://heade.rs/
- Changelog RSS feed: https://verifymcp.io/servers/rs-heade-lookup/heade.xml
- Changelog JSON feed: https://verifymcp.io/servers/rs-heade-lookup/heade.json
- HTML version of this page: https://verifymcp.io/servers/rs-heade-lookup/heade