{"protocolVersion":"0.3.0","name":"X402-BROKER Clearinghouse","description":"Universal A2A, MCP & x402 Tool Discovery, Context Distillation & DeFi Intelligence Autonomous B2A clearinghouse and context distillation suite indexing 23,000+ MCP, A2A and x402 tools alongside real-time DeFi, SEC, OSINT and security intelligence endpoints settled in USDC on Arc Mainnet. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/x402-broker","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"AgentDiet Imperium","url":"https://x402broker.com"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/x402-broker","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","description":"Pay per call with x402 in USDC on Arc Mainnet. Settled gaslessly by the Arcus facilitator.","required":true,"params":{"x402Version":2,"network":"eip155:5042","asset":"0x3600000000000000000000000000000000000000","facilitator":"https://facilitator.arcusnetwork.co","payTo":"0xec5275d5b03bc390fca63d902d0b2d0db2eb5573"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"tool-discovery-search","name":"Tool Discovery Search","description":"Search 23,000+ indexed MCP, A2A and x402 tools with live SLA trust scores and pricing. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: query (required): Search query.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"tool-discovery-search\",\"input\":{\"query\":\"defi yield\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"web-context-distiller","name":"Web Context Distiller","description":"Strip 85-97% of HTML token bloat from any webpage into clean LLM-ready Markdown. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: url (required): Target URL.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"web-context-distiller\",\"input\":{\"url\":\"https://example.com\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"sec-edgar-filing-intel","name":"SEC EDGAR Filing Intel","description":"Extract structured financial metrics, risk factors and 10-K/10-Q insights for any US ticker. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: ticker (required): Stock Ticker.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"sec-edgar-filing-intel\",\"input\":{\"ticker\":\"NVDA\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"token-security-intel","name":"Token Security Intel","description":"Audit ERC-20 token contracts for honeypot risks, holder concentration and liquidity depth. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: token (required): Token Symbol or Address.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"token-security-intel\",\"input\":{\"token\":\"USDC\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"polymarket-odds-oracle","name":"Polymarket Odds Oracle","description":"Real-time prediction market probabilities, orderbook depth and implied consensus odds. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: topic (required): Market Topic.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"polymarket-odds-oracle\",\"input\":{\"topic\":\"fed rates\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"defi-yield-radar","name":"DeFi Yield Radar","description":"Compare risk-adjusted stablecoin and liquidity pool APYs across major DeFi protocols. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: asset (required): Asset Symbol.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"defi-yield-radar\",\"input\":{\"asset\":\"USDC\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"whale-momentum-tracker","name":"Whale Momentum Tracker","description":"Track smart-money accumulation, DEX net flows and institutional wallet momentum. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: token (required): Token Symbol.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"whale-momentum-tracker\",\"input\":{\"token\":\"ETH\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"onchain-address-risk","name":"Onchain Address Risk","description":"Screen EVM wallet and contract addresses for sanctions, exploit history and risk score. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: address (required): EVM Address.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"onchain-address-risk\",\"input\":{\"address\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"cve-vulnerability-intel","name":"CVE Vulnerability Intel","description":"Lookup CVSS severity, exploitability and remediation advisories for software packages. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: query (required): Package or CVE ID.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"cve-vulnerability-intel\",\"input\":{\"query\":\"openssl\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"domain-osint-recon","name":"Domain OSINT Recon","description":"Inspect DNS records, TLS certificates, stack fingerprints and security headers for a domain. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: domain (required): Domain Name.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"domain-osint-recon\",\"input\":{\"domain\":\"arc.network\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"arxiv-research-digest","name":"ArXiv Research Digest","description":"Synthesize key findings, methodology and citations from ArXiv AI and cryptography papers. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: query (required): Research Topic.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"arxiv-research-digest\",\"input\":{\"query\":\"agent payments\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"prompt-injection-guard","name":"Prompt Injection Guard","description":"Scan untrusted prompts and tool outputs for jailbreaks, exfiltration and injection attacks. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: text (required): Input Text.","tags":["x402-broker","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"prompt-injection-guard\",\"input\":{\"text\":\"Summarize the latest quarterly report\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}]}