# Northline ChainKit (remote · northline-chainkit.northline-c86.workers.dev)

Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain.

- Trust score: 65/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `northline-chainkit.northline-c86.workers.dev`: 65/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-northline-c86-northline-chainkit-chainkit/northline-chainkit.md), [page](https://verifymcp.io/servers/dev-workers-northline-c86-northline-chainkit-chainkit/northline-chainkit)

## Channel facts

- Endpoint: `https://northline-chainkit.northline-c86.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## 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 2026-11-05.

- **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**: 68/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 597 tokens (~99/item across 6 items; 6 tools + 0 resources), lean.
  - 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**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 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 ChainKit MCP server?

Northline ChainKit is a hosted endpoint at https://northline-chainkit.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-chainkit-cha 'https://northline-chainkit.northline-c86.workers.dev/mcp'
```

### Cursor

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

### VS Code

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

### Codex

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

### opencode

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

### OpenClaw

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

### Hermes

```yaml
mcp_servers:
  dev-workers-northline-c86-northline-chainkit-cha:
    url: "https://northline-chainkit.northline-c86.workers.dev/mcp"
```

### Netclaw

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

### Vellum

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

### Other

```json
{
  "mcpServers": {
    "dev-workers-northline-c86-northline-chainkit-cha": {
      "type": "http",
      "url": "https://northline-chainkit.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 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 64, +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.

### 2026-10-30 (score 63, +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.

### 2026-10-28 (score 62, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-27 (score 61)

First indexed and scored.

## MCP tools (6)

### `chainkit_catalog` (~37 tokens)

ChainKit catalog (free)

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

### `address_profile` (~120 tokens)

/v1/address/profile

Preflight any address on Base or Arc before paying or approving it: EOA vs contract vs EIP-7702-delegated wallet, EIP-1967 proxy implementation/admin, owner(), Safe multisig threshold, ERC-20 metadata, USDC + native balance, Sourcify verification, and risk flags. Costs $0.005 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `address` (string, required)
- `chain` (string)

### `verify_usdc_payment` (~136 tokens)

/v1/payment/verify

Verify that a transaction paid at least N USDC to an address on Base or Arc (handles Arc native-USDC logs). Returns verified true/false, confirmations, matching transfers and reasons. Use it to confirm a customer paid before delivering. Costs $0.003 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `chain` (string)
- `from` (string)
- `minAmount` (string)
- `minConfirmations` (string)
- `to` (string, required)
- `tx` (string, required)

### `explain_transaction` (~89 tokens)

/v1/tx/explain

Explain a Base or Arc transaction in plain JSON: status, confirmations, fee, method selector, created contract, and every ERC-20 transfer decoded with symbol and decimals. Costs $0.004 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `chain` (string)
- `tx` (string, required)

### `network_status` (~83 tokens)

/v1/network/status

Live block height, gas price and fee estimates (transfer, ERC-20 transfer, contract call) for Base or Arc. On Arc fees are quoted directly in USDC. Costs $0.001 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `chain` (string)

### `usdc_balances` (~68 tokens)

/v1/usdc/balances

USDC and native balance of one address on both Base and Arc in a single call. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).

Input parameters:

- `address` (string, required)

## Diagnostics

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

## Score history

- 2026-11-05: 65
- 2026-11-04: 65
- 2026-11-03: 64
- 2026-11-02: 64
- 2026-11-01: 64
- 2026-10-31: 63
- 2026-10-30: 63
- 2026-10-29: 62
- 2026-10-28: 62
- 2026-10-27: 61

## Common questions

### What is the Northline ChainKit MCP server?

Northline ChainKit is an MCP server listed in the public MCP registry as dev.workers.northline-c86.northline-chainkit/chainkit. Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain. This page covers its hosted endpoint (https://northline-chainkit.northline-c86.workers.dev/mcp).

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

Northline ChainKit scores 65 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 ChainKit MCP server expose?

Northline ChainKit exposes 6 tools: chainkit_catalog, address_profile, verify_usdc_payment, explain_transaction, network_status, usdc_balances. Their descriptions and schemas cost roughly 533 tokens of context every time the server is loaded.

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

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

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

Northline ChainKit 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-chainkit.northline-c86.workers.dev/mcp
- Website: https://northline-chainkit.northline-c86.workers.dev/llms.txt
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-northline-c86-northline-chainkit-chainkit/northline-chainkit.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-northline-c86-northline-chainkit-chainkit/northline-chainkit.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-northline-c86-northline-chainkit-chainkit/northline-chainkit