Pay-per-call tx explainer, DeFi yields, token safety, SEC 8-K and OFAC data via x402 (USDC on Base).
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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.
Transaction hash (0x + 64 hex chars)
Chain (default base)
Paid: $0.03 USDC per successful call via x402 (not charged on errors). Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.
| Argument | Type | Description |
|---|---|---|
| hash* | string | Transaction hash (0x + 64 hex chars) |
| chain | string | Chain (default base) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hash"
],
"properties": {
"hash": {
"type": "string",
"description": "Transaction hash (0x + 64 hex chars)"
},
"chain": {
"enum": [
"base",
"ethereum"
],
"type": "string",
"description": "Chain (default base)"
}
},
"additionalProperties": false
}Paid: $0.05 USDC per successful call via x402 (not charged on errors). Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, IL exposure). Data: DefiLlama.
| Argument | Type | Description |
|---|---|---|
| asset | string | Token symbol, e.g. USDC, ETH |
| chain | string | Chain name, e.g. Base, Ethereum, Arbitrum |
| limit | number | Results, 1-50 (default 10) |
| maxRisk | string | Highest risk tier to include (default medium; use high to include outlier APYs) |
| minTvlUsd | number | Minimum pool TVL in USD (default 1,000,000) |
| stablecoinOnly | boolean | Only stablecoin pools |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"asset": {
"type": "string",
"description": "Token symbol, e.g. USDC, ETH"
},
"chain": {
"type": "string",
"description": "Chain name, e.g. Base, Ethereum, Arbitrum"
},
"limit": {
"type": "number",
"description": "Results, 1-50 (default 10)"
},
"maxRisk": {
"enum": [
"low",
"medium",
"high"
],
"type": "string",
"description": "Highest risk tier to include (default medium; use high to include outlier APYs)"
},
"minTvlUsd": {
"type": "number",
"description": "Minimum pool TVL in USD (default 1,000,000)"
},
"stablecoinOnly": {
"type": "boolean",
"description": "Only stablecoin pools"
}
},
"additionalProperties": false
}Free. Lists every Checkpoint402 data service with its price, inputs, example output link and how payment works.
No arguments.
{
"type": "object",
"properties": {}
}Paid: $0.10 USDC per successful call via x402 (not charged on errors). Newly launched token pools on Base, Ethereum or BSC, each with a 0-100 safety score and explicit red flags (honeypot, unverified code, mintable, owner powers, high tax, unlocked liquidity, whale concentration). Data: GeckoTerminal + GoPlus.
| Argument | Type | Description |
|---|---|---|
| chain | string | Chain (default base) |
| limit | number | Results, 1-20 (default 10) |
| minScore | number | Only tokens with safety score >= this, 0-100 (default 0) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"chain": {
"enum": [
"base",
"ethereum",
"bsc"
],
"type": "string",
"description": "Chain (default base)"
},
"limit": {
"type": "number",
"description": "Results, 1-20 (default 10)"
},
"minScore": {
"type": "number",
"description": "Only tokens with safety score >= this, 0-100 (default 0)"
}
},
"additionalProperties": false
}Paid: $0.05 USDC per successful call via x402 (not charged on errors). Screens a person/company name (fuzzy, alias-aware) and/or a crypto wallet address against the US Treasury OFAC SDN list, refreshed twice daily, including the extended-remarks file where most sanctioned crypto addresses are listed.
| Argument | Type | Description |
|---|---|---|
| name | string | Person or company name |
| limit | number | Max name candidates, 1-20 (default 5) |
| address | string | Crypto wallet address (EVM, BTC, TRX, …) |
| threshold | number | Name-match threshold 0.7-1 (default 0.92) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"name": {
"type": "string",
"description": "Person or company name"
},
"limit": {
"type": "number",
"description": "Max name candidates, 1-20 (default 5)"
},
"address": {
"type": "string",
"description": "Crypto wallet address (EVM, BTC, TRX, …)"
},
"threshold": {
"type": "number",
"description": "Name-match threshold 0.7-1 (default 0.92)"
}
},
"additionalProperties": false
}Paid: $0.10 USDC per successful call via x402 (not charged on errors). Latest SEC 8-K filings — market-wide within minutes of filing, or for one ticker — with each item code translated to plain English, high-impact events flagged (earnings, CEO changes, M&A, bankruptcy, cyber incidents) and AI summaries of the filing text.
| Argument | Type | Description |
|---|---|---|
| item | string | Only filings with this 8-K item code, e.g. 5.02 |
| limit | number | Results, 1-20 (default 10) |
| ticker | string | Stock ticker; omit for the market-wide latest feed |
| highImpactOnly | boolean | Only filings with a high-impact item |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"item": {
"type": "string",
"description": "Only filings with this 8-K item code, e.g. 5.02"
},
"limit": {
"type": "number",
"description": "Results, 1-20 (default 10)"
},
"ticker": {
"type": "string",
"description": "Stock ticker; omit for the market-wide latest feed"
},
"highImpactOnly": {
"type": "boolean",
"description": "Only filings with a high-impact item"
}
},
"additionalProperties": false
}