SPORE x402 Attestation
Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base.
使うべきか
品質と安全性
検出事項（4）
- LOWTool 'approval-check' doesn't follow camelCase/snake_caseapproval-check 内
- LOWTool 'dns-preflight' doesn't follow camelCase/snake_casedns-preflight 内
- LOWTool 'base-wallet-lens' doesn't follow camelCase/snake_casebase-wallet-lens 内
- LOWTool 'endpoint-check' doesn't follow camelCase/snake_caseendpoint-check 内
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": {
"x402-attestation": {
"url": "https://spore-x402.worker.beacon.host/mcp"
}
}
}リモートエンドポイント
https://spore-x402.worker.beacon.host/mcpstreamable-httpできること
ツール一覧
ツール（6）
⚪x402_attest(subject)
Signed x402-v2 attestation of a subject/delivery packet: artifact URLs live, sha256 digests match the bound refs, report coherent with evidence.
入力スキーマ
{
"type": "object",
"properties": {
"subject": {
"type": "string"
}
},
"required": [
"subject"
]
}⚪x402_preflight(packet)
Preflight-verify a bounty delivery packet before claim/payout (reachability + digest binding + report/evidence coherence) -> signed verdict.
入力スキーマ
{
"type": "object",
"properties": {
"packet": {
"type": "object"
}
},
"required": [
"packet"
]
}🟢approval-check(owner, spender, token)
Check a token approval before signing it: reads the ERC-20 allowance (owner -> spender) live on Base and returns the raw allowance, an unlimited-approval flag and a risk verdict. Read-only, no keys, no transaction.
入力スキーマ
{
"type": "object",
"properties": {
"owner": {
"type": "string",
"description": "ERC-20 token owner address (0x + 40 hex)."
},
"spender": {
"type": "string",
"description": "Spender address whose allowance is checked."
},
"token": {
"type": "string",
"description": "ERC-20 token address. Defaults to USDC on Base."
}
},
"required": [
"owner",
"spender"
]
}⚪dns-preflight(domain)
DNS MX TXT A records domain lookup with an email-deliverability verdict: A records, MX hosts, SPF (v=spf1) and DMARC policy, CAA, plus a signed ok/warn/fail verdict.
入力スキーマ
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain to check (e.g. example.com)."
}
},
"required": [
"domain"
]
}🟢base-wallet-lens(address)
Base wallet balances USDC ERC20 portfolio snapshot: live USDC / WETH / DAI balances, ETH balance, nonce and tx count for any Base address. Read-only.
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "Base address to read (0x + 40 hex)."
}
},
"required": [
"address"
]
}🟡endpoint-check(url)
Check an x402 endpoint before paying it: fetch the unpaid 402 challenge of any x402 URL and verify it is payable and safe - HTTP 402, a parseable x402 v1/v2 challenge, network, asset, payTo, amount, whether the advertised resource URL is the URL you actually called, manifest consistency (/.well-known/x402.json), header-size overflow risk for Node clients, and a signed pay / caution / avoid verdict. Read-only: we never send a payment.
入力スキーマ
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "x402 URL to check before paying it."
}
},
"required": [
"url"
]
}コミュニティ
エビデンス