{"protocolVersion":"0.3.0","url":"https://api.checkpoint402.com/a2a","preferredTransport":"JSONRPC","supportedInterfaces":[{"url":"https://api.checkpoint402.com/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"name":"Checkpoint402","description":"Pay-per-call data services for AI agents: Transaction Explainer, Best DeFi Yield Finder, New Token Launch Feed, Token Safety Check, Breaking Company Events (SEC 8-K), OFAC Sanctions Screening. Message this agent for free to get the catalog; each service is then called over HTTPS and paid per call in USDC on Base via x402 — no accounts or API keys.","version":"1.0.0","provider":{"organization":"Checkpoint402","url":"https://checkpoint402.com"},"documentationUrl":"https://api.checkpoint402.com/openapi.json","iconUrl":"https://checkpoint402.com/icon.svg","capabilities":{"streaming":false,"pushNotifications":false},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["text/plain","application/json"],"skills":[{"id":"tx-explainer","name":"Transaction Explainer","description":"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. Price: $0.03 per call via x402 at GET https://api.checkpoint402.com/v1/tx-explain.","tags":["blockchain","transaction","explainer","base","ethereum"],"examples":["Explain Base transaction 0xcbb6…7205 in plain English"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"defi-yields","name":"Best DeFi Yield Finder","description":"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. Price: $0.05 per call via x402 at GET https://api.checkpoint402.com/v1/defi-yields.","tags":["defi","yield","apy","stablecoin","risk"],"examples":["Best low-risk USDC yields on Base with at least $1M TVL"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"new-tokens","name":"New Token Launch Feed","description":"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. Price: $0.1 per call via x402 at GET https://api.checkpoint402.com/v1/new-tokens.","tags":["tokens","new-launches","security","honeypot","rug-check"],"examples":["New tokens launched on Base in the last hours with a safety score above 50"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"token-check","name":"Token Safety Check","description":"Is this token a scam? Checks any token on Base, Ethereum or BSC and returns a 0-100 safety score, a verdict, red flags (honeypot, hidden fees, owner powers, unlocked liquidity, whale concentration, creator's past honeypots), good signs and a plain-English summary. Data: GoPlus + DexScreener. Price: $0.02 per call via x402 at GET https://api.checkpoint402.com/v1/token-check.","tags":["tokens","security","honeypot","rug-check","scam-check"],"examples":["Is token 0x9401…8631 on Base safe, or a honeypot?"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"sec-8k","name":"Breaking Company Events (SEC 8-K)","description":"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. Price: $0.1 per call via x402 at GET https://api.checkpoint402.com/v1/company-events.","tags":["sec","8-k","stocks","corporate-events","filings"],"examples":["Latest high-impact 8-K filings","Any CEO change (item 5.02) at AAPL?"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"ofac-screen","name":"OFAC Sanctions Screening","description":"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. Price: $0.05 per call via x402 at GET https://api.checkpoint402.com/v1/sanctions-screen.","tags":["sanctions","ofac","compliance","kyc","aml"],"examples":["Is wallet 0x098B…2f96 on the OFAC sanctions list?"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]}]}