Northline ChainKit
Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain.
使うべきか
品質と安全性
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"chainkit": {
"url": "https://northline-chainkit.northline-c86.workers.dev/mcp"
}
}
}リモートエンドポイント
https://northline-chainkit.northline-c86.workers.dev/mcpstreamable-httpできること
ツール一覧
ツール（6）
🟢chainkit_catalog
Free. Lists every ChainKit tool with its price, required inputs and an example, plus how x402 payment works. Call this first.
入力スキーマ
{
"type": "object",
"properties": {}
}🟢address_profile(chain, address)
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 $0.005 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"enum": [
"base",
"arc"
],
"default": "base"
},
"address": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
}
},
"required": [
"address"
]
}🟢verify_usdc_payment(chain, tx, to, minAmount, from, ...)
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 $0.003 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"enum": [
"base",
"arc"
],
"default": "base"
},
"tx": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
},
"to": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"minAmount": {
"type": "string"
},
"from": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"minConfirmations": {
"type": "string"
}
},
"required": [
"tx",
"to"
]
}🟢explain_transaction(chain, tx)
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 $0.004 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"enum": [
"base",
"arc"
],
"default": "base"
},
"tx": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
}
},
"required": [
"tx"
]
}🟢network_status(chain)
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).
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"enum": [
"base",
"arc"
],
"default": "base"
}
}
}🟢usdc_balances(address)
USDC and native balance of one address on both Base and Arc in a single call. Costs $0.002 USDC on Base per call via x402 (unpaid calls return the x402 PaymentRequired; any x402 MCP client pays automatically).
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
}
},
"required": [
"address"
]
}コミュニティ
エビデンス