Checkpoint402
Pay-per-call tx explainer, DeFi yields, token safety, SEC 8-K and OFAC data via x402 (USDC on Base).
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"checkpoint402": {
"url": "https://api.checkpoint402.com/mcp"
}
}
}Remote endpoints
https://api.checkpoint402.com/mcpstreamable-httpWhat it can do
Tool inventory
Tools (6)
🟢list_services
Free. Lists every Checkpoint402 data service with its price, inputs, example output link and how payment works.
Input Schema
{
"type": "object",
"properties": {}
}🟢explain_transaction(hash, chain)
Paid: $0.03 USDC per successful call via x402 (not charged on errors). Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.
Input Schema
{
"type": "object",
"properties": {
"hash": {
"type": "string",
"description": "Transaction hash (0x + 64 hex chars)"
},
"chain": {
"type": "string",
"enum": [
"base",
"ethereum"
],
"description": "Chain (default base)"
}
},
"required": [
"hash"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢find_defi_yields(asset, chain, minTvlUsd, stablecoinOnly, maxRisk, ...)
Paid: $0.05 USDC per successful call via x402 (not charged on errors). Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, IL exposure). Data: DefiLlama.
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"description": "Token symbol, e.g. USDC, ETH"
},
"chain": {
"type": "string",
"description": "Chain name, e.g. Base, Ethereum, Arbitrum"
},
"minTvlUsd": {
"type": "number",
"description": "Minimum pool TVL in USD (default 1,000,000)"
},
"stablecoinOnly": {
"type": "boolean",
"description": "Only stablecoin pools"
},
"maxRisk": {
"type": "string",
"enum": [
"low",
"medium",
"high"
],
"description": "Highest risk tier to include (default medium; use high to include outlier APYs)"
},
"limit": {
"type": "number",
"description": "Results, 1-50 (default 10)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢new_token_safety_feed(chain, minScore, limit)
Paid: $0.10 USDC per successful call via x402 (not charged on errors). Newly launched token pools on Base, Ethereum or BSC, each with a 0-100 safety score and explicit red flags (honeypot, unverified code, mintable, owner powers, high tax, unlocked liquidity, whale concentration). Data: GeckoTerminal + GoPlus.
Input Schema
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"enum": [
"base",
"ethereum",
"bsc"
],
"description": "Chain (default base)"
},
"minScore": {
"type": "number",
"description": "Only tokens with safety score >= this, 0-100 (default 0)"
},
"limit": {
"type": "number",
"description": "Results, 1-20 (default 10)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢sec_8k_company_events(ticker, item, highImpactOnly, limit)
Paid: $0.10 USDC per successful call via x402 (not charged on errors). Latest SEC 8-K filings — market-wide within minutes of filing, or for one ticker — with each item code translated to plain English, high-impact events flagged (earnings, CEO changes, M&A, bankruptcy, cyber incidents) and AI summaries of the filing text.
Input Schema
{
"type": "object",
"properties": {
"ticker": {
"type": "string",
"description": "Stock ticker; omit for the market-wide latest feed"
},
"item": {
"type": "string",
"description": "Only filings with this 8-K item code, e.g. 5.02"
},
"highImpactOnly": {
"type": "boolean",
"description": "Only filings with a high-impact item"
},
"limit": {
"type": "number",
"description": "Results, 1-20 (default 10)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢ofac_sanctions_screen(name, address, threshold, limit)
Paid: $0.05 USDC per successful call via x402 (not charged on errors). Screens a person/company name (fuzzy, alias-aware) and/or a crypto wallet address against the US Treasury OFAC SDN list, refreshed twice daily, including the extended-remarks file where most sanctioned crypto addresses are listed.
Input Schema
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Person or company name"
},
"address": {
"type": "string",
"description": "Crypto wallet address (EVM, BTC, TRX, …)"
},
"threshold": {
"type": "number",
"description": "Name-match threshold 0.7-1 (default 0.92)"
},
"limit": {
"type": "number",
"description": "Max name candidates, 1-20 (default 5)"
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence