SPORE x402 Attestation

host.beacon.worker.spore-x402/x402-attestationVersion 2.1.0

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

Status

Responds408 msNov 14, 2026, 14:32 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:32 UTC
Latency: 408 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://spore-x402.worker.beacon.host/mcpResponds408 msNov 14, 2026, 14:32 UTC

No sign-in

Claude Code

claude mcp add --transport http x402-attestation https://spore-x402.worker.beacon.host/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: x402-attestation
Remote MCP server URL: https://spore-x402.worker.beacon.host/mcp

Cursor

{
  "mcpServers": {
    "x402-attestation": {
      "url": "https://spore-x402.worker.beacon.host/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"x402-attestation","type":"http","url":"https://spore-x402.worker.beacon.host/mcp"}'

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Tools

6 tools

Tools of SPORE x402 Attestation
	Description		Read-only	Idempotent	Open world
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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.	Base wallet balances USDC ERC20 portfolio snapshot: live USDC / WETH / DAI balances, ETH balance, nonce and tx count for any Base address. Read-only.	Not declared	Not declared	Not declared	Not declared
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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-known/x402.json), header-size overflow risk for Node clients, and a signed pay / caution / avoid verdict. Read-only: we never send a payment.	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.	Not declared	Not declared	Not declared	Not declared
`x402_attest`Signed x402-v2 attestation of a subject/delivery packet: artifact URLs live, sha256 digests match the bound refs, report coherent with evidence.	Signed x402-v2 attestation of a subject/delivery packet: artifact URLs live, sha256 digests match the bound refs, report coherent with evidence.	Not declared	Not declared	Not declared	Not declared
`x402_preflight`Preflight-verify a bounty delivery packet before claim/payout (reachability + digest binding + report/evidence coherence) -> signed verdict.	Preflight-verify a bounty delivery packet before claim/payout (reachability + digest binding + report/evidence coherence) -> signed verdict.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Oct 21, 2026
Updated: Oct 21, 2026
Website: https://spore-x402.worker.beacon.host/.well-known/mcp.json?ref=spore⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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