# Northline WebKit (remote · northline-webkit.northline-c86.workers.dev)

Pay-per-call web tools for agents: URL to markdown, metadata, links, DNS, email/domain checks, RDAP.

- Trust score: 67/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `northline-webkit.northline-c86.workers.dev`: 67/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit.md), [page](https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit)

## Channel facts

- Endpoint: `https://northline-webkit.northline-c86.workers.dev/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 2026-11-05.

- **Endpoint Security**: 63/100
  - 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 check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1064 tokens (~106/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 95/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 85% 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 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 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 Northline WebKit MCP server?

Northline WebKit is a hosted endpoint at https://northline-webkit.northline-c86.workers.dev/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 dev-workers-northline-c86-northline-webkit-webki 'https://northline-webkit.northline-c86.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-workers-northline-c86-northline-webkit-webki": {
      "url": "https://northline-webkit.northline-c86.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-workers-northline-c86-northline-webkit-webki": {
      "type": "http",
      "url": "https://northline-webkit.northline-c86.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-workers-northline-c86-northline-webkit-webki]
url = "https://northline-webkit.northline-c86.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-workers-northline-c86-northline-webkit-webki": {
      "type": "remote",
      "url": "https://northline-webkit.northline-c86.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-workers-northline-c86-northline-webkit-webki --url 'https://northline-webkit.northline-c86.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-workers-northline-c86-northline-webkit-webki:
    url: "https://northline-webkit.northline-c86.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-workers-northline-c86-northline-webkit-webki": {
      "Transport": "http",
      "Url": "https://northline-webkit.northline-c86.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-workers-northline-c86-northline-webkit-webki -t streamable-http -u 'https://northline-webkit.northline-c86.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-workers-northline-c86-northline-webkit-webki": {
      "type": "http",
      "url": "https://northline-webkit.northline-c86.workers.dev/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.

### 2026-11-04 (score 67, +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.

### 2026-11-02 (score 66, +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.

### 2026-10-31 (score 65, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-30 (score 64)

First indexed and scored.

## MCP tools (10)

### `webkit_catalog` (~37 tokens)

WebKit catalog (free)

Free. Lists every WebKit tool with its price, required inputs and an example, plus how x402 payment works. Call this first.

### `url_to_markdown` (~121 tokens)

/v1/url/markdown

Fetch any public web page and return clean, readable Markdown (main content only: no scripts, nav or footer) plus title, word count and final URL. Ideal for feeding pages to an LLM. Costs $0.003 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `maxChars` (string): Max markdown characters (1000-50000, default 20000)
- `url` (string, required): Public http(s) URL (scheme optional)

### `url_metadata` (~95 tokens)

/v1/url/metadata

Link preview and SEO metadata for any URL: title, description, canonical, language, Open Graph and Twitter card, favicon, RSS/Atom feeds and JSON-LD types, after following redirects. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `url` (string, required): Public http(s) URL (scheme optional)

### `url_links` (~105 tokens)

/v1/url/links

Every unique outgoing link on a web page (absolute URLs, anchor text, internal vs external), up to 500. Use it to crawl a site or find related pages. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `external` (string): Filter to only or exclude external links
- `url` (string, required): Public http(s) URL (scheme optional)

### `url_check` (~98 tokens)

/v1/url/check

Is this URL up? HTTP status, full redirect chain, final URL, response time, content type, server/CDN and a security-headers grade (HSTS, CSP, X-Frame-Options...). Costs $0.001 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `url` (string, required): Public http(s) URL (scheme optional)

### `dns_lookup` (~110 tokens)

/v1/dns/lookup

DNS records for a domain over DNS-over-HTTPS: A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV, PTR or HTTPS, with TTLs and DNSSEC validation flag. Costs $0.001 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `domain` (string, required): Domain name, e.g. example.com
- `type` (string)

### `email_domain_check` (~94 tokens)

/v1/email/check

Check an email address or domain before you send: syntax, MX servers, accepts mail?, disposable or free provider, mail provider (Google, Microsoft...), SPF and DMARC policy, with risk flags. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `email` (string, required): Email address or bare domain

### `domain_whois` (~103 tokens)

/v1/domain/whois

WHOIS for a domain via official RDAP: registered?, registrar, creation/expiry dates, domain age in days, status codes, nameservers, DNSSEC and abuse contact. Spot newly registered (phishing) domains. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `domain` (string, required): Domain name, e.g. example.com

### `robots_check` (~116 tokens)

/v1/robots/check

May I crawl this URL? Parses robots.txt and answers allowed true/false for your user agent and path, the matching rule, sitemaps, and whether 14 AI crawlers (GPTBot, ClaudeBot, PerplexityBot...) are allowed. Costs $0.001 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `url` (string, required): Public http(s) URL (scheme optional)
- `userAgent` (string)

### `domain_report` (~116 tokens)

/v1/domain/report

One-call domain due diligence: RDAP registration (age, registrar, expiry), DNS (A/AAAA/NS/CAA, DNSSEC), email setup (MX/SPF/DMARC), HTTPS reachability with security-headers grade, and risk flags such as newly_registered_lt_30d. Costs $0.005 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `domain` (string, required): Domain name, e.g. example.com

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit#diagnostics

## Score history

- 2026-11-05: 67
- 2026-11-04: 67
- 2026-11-03: 66
- 2026-11-02: 66
- 2026-11-01: 65
- 2026-10-31: 65
- 2026-10-30: 64

## Common questions

### What is the Northline WebKit MCP server?

Northline WebKit is an MCP server listed in the public MCP registry as dev.workers.northline-c86.northline-webkit/webkit. Pay-per-call web tools for agents: URL to markdown, metadata, links, DNS, email/domain checks, RDAP. This page covers its hosted endpoint (https://northline-webkit.northline-c86.workers.dev/mcp).

### Is the Northline WebKit MCP server safe to use?

Northline WebKit scores 67 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 Northline WebKit MCP server expose?

Northline WebKit exposes 10 tools: webkit_catalog, url_to_markdown, url_metadata, url_links, url_check, and 5 more. Their descriptions and schemas cost roughly 995 tokens of context every time the server is loaded.

### Does the Northline WebKit MCP server require authentication?

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

### Is the Northline WebKit MCP server still maintained?

Northline WebKit is still listed as active in the MCP registry. We last reached this channel on 5 November 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://northline-webkit.northline-c86.workers.dev/mcp
- Website: https://northline-webkit.northline-c86.workers.dev/llms.txt
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-northline-c86-northline-webkit-webkit/northline-webkit