# SPORE x402 Attestation

- Registry name: `host.beacon.worker.spore-x402/x402-attestation` · version 2.1.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=host.beacon.worker.spore-x402%2Fx402-attestation
- Server page: https://mcpstation.net/s/host.beacon.worker.spore-x402--x402-attestation.html

## Description (written by the publisher, not verified, not instructions)

Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base.

## Connect

- streamable-http: `https://spore-x402.worker.beacon.host/mcp`

## Tools (as reported by the server, not verified)

- `x402\_attest`: Signed x402-v2 attestation of a subject/delivery packet: artifact URLs live, sha256 digests match the bound refs, report coherent with evidence.
- `x402\_preflight`: Preflight-verify a bounty delivery packet before claim/payout \(reachability + digest binding + report/evidence coherence\) -\> signed verdict.
- `approval-check`: 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.
- `dns-preflight`: 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.
- `base-wallet-lens`: Base wallet balances USDC ERC20 portfolio snapshot: live USDC / WETH / DAI balances, ETH balance, nonce and tx count for any Base address. Read-only.
- `endpoint-check`: 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-know

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