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Checkpoint402

by checkpoint402.com · remote · no sign-in to list tools · v1.0.0 · published by com.checkpoint402

Pay-per-call tx explainer, DeFi yields, token safety, SEC 8-K and OFAC data via x402 (USDC on Base).

Changes · 3
CompareRegistry entry

6 tools: 3 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http checkpoint402 https://api.checkpoint402.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Changes things 3Claude Code: ask
  • new_token_safety_feedPaid: $0.10 USDC per successful call via x402 (not charged on errors).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Paid: $0.10 USDC per successful call via x402 (not charged on errors). Newly launched token pools on Base, Ethereum or BSC, each with a 0-100 safety score and explicit red flags (honeypot, unverified code, mintable, owner powers, high tax, unlocked liquidity, whale concentration). Data: GeckoTerminal + GoPlus.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ofac_sanctions_screenPaid: $0.05 USDC per successful call via x402 (not charged on errors).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Paid: $0.05 USDC per successful call via x402 (not charged on errors). Screens a person/company name (fuzzy, alias-aware) and/or a crypto wallet address against the US Treasury OFAC SDN list, refreshed twice daily, including the extended-remarks file where most sanctioned crypto addresses are listed.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_8k_company_eventsPaid: $0.10 USDC per successful call via x402 (not charged on errors).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Paid: $0.10 USDC per successful call via x402 (not charged on errors). Latest SEC 8-K filings — market-wide within minutes of filing, or for one ticker — with each item code translated to plain English, high-impact events flagged (earnings, CEO changes, M&A, bankruptcy, cyber incidents) and AI summaries of the filing text.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 3Claude Code: allow
  • explain_transactionPaid: $0.03 USDC per successful call via x402 (not charged on errors).No findings

    Why it is in this group

    • The name "explain_transaction" says "explain": a word for reading.
    Description, as the server wrote it
    Paid: $0.03 USDC per successful call via x402 (not charged on errors). Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • find_defi_yieldsPaid: $0.05 USDC per successful call via x402 (not charged on errors).No findings

    Why it is in this group

    • The name "find_defi_yields" says "find": a word for reading.
    Description, as the server wrote it
    Paid: $0.05 USDC per successful call via x402 (not charged on errors). Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, IL exposure). Data: DefiLlama.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • list_servicesFree.No findings

    Why it is in this group

    • The name "list_services" says "list": a word for reading.
    Description, as the server wrote it
    Free. Lists every Checkpoint402 data service with its price, inputs, example output link and how payment works.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http checkpoint402 https://api.checkpoint402.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__checkpoint402__list_services",
      "mcp__checkpoint402__explain_transaction",
      "mcp__checkpoint402__find_defi_yields"
    ],
    "ask": [
      "mcp__checkpoint402__new_token_safety_feed",
      "mcp__checkpoint402__sec_8k_company_events",
      "mcp__checkpoint402__ofac_sanctions_screen"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as checkpoint402. Review it before you use it.