dev.workers.northline-c86.northline-chainkit/chainkit

up checked 2026-11-10T22:37:37.039Z

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Publisher-provided title

Northline ChainKit

Publisher-provided description

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

Summary by lookupd

Checks Base and Arc addresses, transactions, USDC balances and gas fees, and verifies USDC payments on-chain for agents.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http chainkit https://northline-chainkit.northline-c86.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add chainkit --url https://northline-chainkit.northline-c86.workers.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (6 tools)

Publisher-provided text

• chainkit_catalog Free. Lists every ChainKit tool with its price, required inputs and an example, plus how x402 payment works. Call this first.
• 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(),
• verify_usdc_payment 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
• explain_transaction Explain a Base or Arc transaction in plain JSON: status, confirmations, fee, method selector, created contract, and every ERC-20 transfer decoded with symbol an
• 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_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 PaymentR

Details

• Version: 1.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 302 ms
• First indexed: 2026-11-01T09:02:01.195Z
• Last seen in registry: 2026-11-01T09:02:01.195Z
• Website: https://northline-chainkit.northline-c86.workers.dev/llms.txt

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• 62141 servers
• Last crawl: 2026-11-11T18:17:25.333Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp