Security & Testing

beacon.host

Provides security preflight and attestation tools for verifying delivery packets, token approvals, DNS/email deliverability, and Base wallet balances.

1 endpoint6 known toolsFirst detected October 22, 2026Last detected October 22, 2026

ENDPOINT 1

https://spore-x402.worker.beacon.host/mcp

No auth detected

MCP server metadata

Name: SPORE x402 Attestation
Version: 2.1.0

Capabilities

tools

Known tools 6

x402_attest

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

Inferred read-only

x402_preflight

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

Inferred read-only

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.

Inferred read-only

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.

Potential side effects

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.

Inferred 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 (/.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.spore-x402-attestation]
url = "https://spore-x402.worker.beacon.host/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: spore-x402-attestation
Remote MCP URL: https://spore-x402.worker.beacon.host/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "spore-x402-attestation": {
      "type": "http",
      "url": "https://spore-x402.worker.beacon.host/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "spore-x402-attestation",
  "transport": "streamable-http",
  "url": "https://spore-x402.worker.beacon.host/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.