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SPORE x402 Attestation

by host.beacon.worker.spore-x402
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Server Details

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

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Status
Healthy
Uptime
100.0% over the last 24 hours
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL
ChatGPT
–
Claude
–

TDQS

B3.3/5.0

Scored across 6 tools

Disambiguation3/5

Most tools target distinct resources: token approvals, Base wallets, DNS records, x402 endpoints, and delivery packets. However, x402_attest and x402_preflight are very close in purpose, both verifying delivery packets with signed verdicts, and endpoint-check versus x402_preflight share overlapping 'preflight' semantics.

Naming Consistency2/5

The naming mixes kebab-case (approval-check, base-wallet-lens, dns-preflight, endpoint-check) with snake_case (x402_attest, x402_preflight). The patterns are also inconsistent, combining noun-verb-style checks with noun-noun and prefixed verb forms.

Tool Count5/5

Six tools is a well-scoped size for a focused preflight/attestation utility server. Each tool appears to earn its place by covering a distinct validation surface.

Completeness4/5

The surface covers key pre-action checks: approvals, wallet balances, DNS deliverability, x402 endpoint payability, and delivery-packet attestation/preflight. Minor gaps exist around managing or verifying previously issued attestations, but core agent workflows are supported.

Available Tools

6 tools
approval-checkAInspect

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.

Inputs: owner (required), spender (required), token.

base-wallet-lensBInspect

Base wallet balances USDC ERC20 portfolio snapshot: live USDC / WETH / DAI balances, ETH balance, nonce and tx count for any Base address. Read-only.

Inputs: address (required).

dns-preflightAInspect

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.

Inputs: domain (required).

endpoint-checkAInspect

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.

Inputs: url (required).

x402_attestCInspect

Signed x402-v2 attestation of a subject/delivery packet: artifact URLs live, sha256 digests match the bound refs, report coherent with evidence.

Inputs: subject (required).

x402_preflightBInspect

Preflight-verify a bounty delivery packet before claim/payout (reachability + digest binding + report/evidence coherence) -> signed verdict.

Inputs: packet (required).

Tool Schema Changelog

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