# Services from coinop.publicvm.com on Zero > coinop.publicvm.com serves 38 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero. Canonical page: https://www.zero.xyz/host/coinop.publicvm.com Live health (JSON, refreshed every minute): https://www.zero.xyz/host/coinop.publicvm.com/health.json ## Services - [CoinOpSelect Token Safety API](https://www.zero.xyz/c/coinopselect-token-safety-api-abba0596/llms.txt): $0.01/call via x402. Returns a safety score, risk verdict, and red flags for a given ERC-20 token contract address on Base, Arbitrum, or Ethereum. - [CoinOpSelect Solidity & JavaScript Vulnerability Scanner](https://www.zero.xyz/c/coinopselect-solidity-javascript-vulnerability-scanner-2144983b/llms.txt): $0.01/call via x402. Scans Solidity or JavaScript source code for security vulnerabilities and returns structured findings with risk scores and severity levels. - [CoinOpSelect Contract Permissions Query](https://www.zero.xyz/c/coinopselect-contract-permissions-query-0b171a71/llms.txt): $0.01/call via x402. Looks up ERC-20 token allowance and permission data for a given contract, owner, and spender address on Base - [CoinOpSelect Gas Price API](https://www.zero.xyz/c/coinopselect-gas-price-api-7bdc6827/llms.txt): $0.01/call via x402. Returns current gas prices in Gwei for Base, Arbitrum, and Ethereum networks via a pay-per-call x402 endpoint. - [CoinOpSelect Wallet Risk Assessment API](https://www.zero.xyz/c/coinopselect-wallet-risk-assessment-api-140514f3/llms.txt): $0.01/call via x402. Analyzes an Ethereum wallet address for risk flags, token holdings, and network activity across multiple chains, returning aggregated risk and balance data. - [CoinOpSelect Vault Alerts API](https://www.zero.xyz/c/coinopselect-vault-alerts-api-fcfa1f7e/llms.txt): $0.01/call via x402. Compares current and previous DeFi vault snapshots to detect and return notable changes in APY or TVL across on-chain vaults. - [CoinOpSelect Merkle Proof Verification API](https://www.zero.xyz/c/coinopselect-merkle-proof-verification-api-e4c85d38/llms.txt): $0.01/call via x402. Verifies a Merkle proof by checking whether a given leaf and proof path are valid against a specified Merkle root - [CoinOpSelect DeFi Summary API](https://www.zero.xyz/c/coinopselect-defi-summary-api-509d1e25/llms.txt): $0.01/call via x402. Returns a multi-network DeFi summary including vault data, token symbols, and network coverage for specified crypto assets, paid per call via x402 on Base. - [CoinOpSelect Sentiment Aggregate API](https://www.zero.xyz/c/coinopselect-sentiment-aggregate-api-d3b81e7c/llms.txt): $0.01/call via x402. Aggregates sentiment scores across multiple text sources (news, social, etc.) into a unified crypto/market sentiment signal, paid per call via x402 on Base. - [CoinOpSelect Batch Net Payment Calculator](https://www.zero.xyz/c/coinopselect-batch-net-payment-calculator-c7e1b8b1/llms.txt): $0.01/call via x402. Computes the net payment flows for a batch of on-chain payment transactions on Base, returning aggregated net amounts per address. - [CoinOpSelect Intent Quote API](https://www.zero.xyz/c/coinopselect-intent-quote-api-5d16a976/llms.txt): $0.01/call via x402. Returns a fill quote and query result for a token swap intent, given buy/sell token symbols and pricing parameters, paid via x402 on Base. - [CoinOpSelect Compute Arbitrage API](https://www.zero.xyz/c/coinopselect-compute-arbitrage-api-edde32e3/llms.txt): $0.01/call via x402. Compares compute resource pricing across cloud providers (e.g. Akash, Render) to identify the cheapest option for a given tier and duration, paid per call via x402 on Base. - [CoinOpSelect MEV Analyze](https://www.zero.xyz/c/coinopselect-mev-analyze-285c75a8/llms.txt): $0.01/call via x402. Analyzes a blockchain transaction for MEV (Maximal Extractable Value) opportunities, returning detected arbitrage, sandwich, or other MEV patterns. - [CoinOpSelect Escrow Transition Validator](https://www.zero.xyz/c/coinopselect-escrow-transition-validator-d3c3b789/llms.txt): $0.01/call via x402. Checks whether a given escrow status transition (from one state to another) is allowed within the CoinOpSelect on-chain escrow workflow. - [CoinOpSelect Proof Commit API](https://www.zero.xyz/c/coinopselect-proof-commit-api-ddd02487/llms.txt): $0.01/call via x402. Generates a cryptographic commitment (hash) for a given value, optionally with a salt, for use in on-chain proof protocols on Base. - [CoinOpSelect Cover Quote API](https://www.zero.xyz/c/coinopselect-cover-quote-api-98ad9540/llms.txt): $0.01/call via x402. Returns a decentralized insurance cover quote (policy terms and premium) for a given asset, coverage amount, and loss ratio, paid via x402 on Base. - [CoinOpSelect Agent Data API — Ping (x402)](https://www.zero.xyz/c/coinopselect-agent-data-api-ping-x402-45ee6ecb/llms.txt): $0.003/call via x402. Health-check and payment-metadata ping endpoint that confirms the x402 payment gateway is live and returns transaction metadata for a $0.003 USDC on-chain micropayment on Base. - [CoinOpSelect Research Latest Endpoint](https://www.zero.xyz/c/coinopselect-research-latest-endpoint-f600c5ad/llms.txt): $0.01/call via x402. Fetches the latest on-chain and crypto research finding from CoinOpSelect's curated research repository, paid per call via x402 on Base. - [CoinOpSelect Escrow Commitment API](https://www.zero.xyz/c/coinopselect-escrow-commitment-api-9bfe8e1e/llms.txt): $0.01/call via x402. Generates a cryptographic on-chain escrow commitment hash for a given work product text on Base. - [CoinOpSelect Compute Estimate API](https://www.zero.xyz/c/coinopselect-compute-estimate-api-251e8aae/llms.txt): $0.01/call via x402. Returns a cost estimate for decentralized compute resources on Akash or Render, given tier size, duration, and provider. - [CoinOpSelect Intent Surplus Calculator](https://www.zero.xyz/c/coinopselect-intent-surplus-calculator-4f8010a6/llms.txt): $0.01/call via x402. Computes the surplus (profit or savings) for a given intent order by comparing a limit price against a fill price on-chain. - [CoinOpSelect Staking Protocols List API](https://www.zero.xyz/c/coinopselect-staking-protocols-list-api-f59f5652/llms.txt): $0.01/call via x402. Lists available staking protocols for a given blockchain network (Ethereum, Base, or Arbitrum) - [CoinOpSelect Merkle Leaf Lookup API](https://www.zero.xyz/c/coinopselect-merkle-leaf-lookup-api-24920dcf/llms.txt): $0.01/call via x402. Computes or retrieves a Merkle leaf hash for a given account, index, and amount, used in on-chain Merkle proof workflows on Base. - [CoinOpSelect Referral Quote API](https://www.zero.xyz/c/coinopselect-referral-quote-api-2fedd313/llms.txt): $0.01/call via x402. Returns a referral fee quote for a given venue and fee configuration, including fee basis points and referral basis points. - [CoinOpSelect Compliance Jurisdiction Screen API](https://www.zero.xyz/c/coinopselect-compliance-jurisdiction-screen-api-18686287/llms.txt): $0.01/call via x402. Returns jurisdiction compliance screening data for a given US state and venue, paid per call via x402 on Base. - [CoinOpSelect Sentiment Score API](https://www.zero.xyz/c/coinopselect-sentiment-score-api-b1a8fe61/llms.txt): $0.01/call via x402. Scores the sentiment of a given text string, returning a sentiment result via a pay-per-call x402 on-chain payment on Base. - [CoinOpSelect Attestation Build API](https://www.zero.xyz/c/coinopselect-attestation-build-api-ce6e53de/llms.txt): $0.01/call via x402. Builds an on-chain attestation object for a given contract, wallet, or token query using the x402 payment protocol on Base. - [CoinOpSelect Attestation Verify](https://www.zero.xyz/c/coinopselect-attestation-verify-d70888c7/llms.txt): $0.01/call via x402. Verifies the validity of an on-chain attestation object, confirming its hash, input query, and output result are authentic. - [CoinOpSelect Proof Hash API](https://www.zero.xyz/c/coinopselect-proof-hash-api-e1bb79c0/llms.txt): $0.01/call via x402. Hashes arbitrary text input and returns a hex digest for proof or verification purposes, paid per call via x402 on Base. - [CoinOpSelect Subscription Flow API](https://www.zero.xyz/c/coinopselect-subscription-flow-api-1051b6d9/llms.txt): $0.01/call via x402. Retrieves subscription flow data (fixed and monthly pricing tiers) for on-chain blockchain data services paid via x402 on Base. - [CoinOpSelect Treasury Runway API](https://www.zero.xyz/c/coinopselect-treasury-runway-api-7c9b0cca/llms.txt): $0.01/call via x402. Returns treasury runway data (months of runway remaining) for on-chain projects, gated by x402 micropayment on Base. - [CoinOpSelect Code Refactor Suggest API](https://www.zero.xyz/c/coinopselect-code-refactor-suggest-api-9a06d819/llms.txt): $0.01/call via x402. Accepts source code and returns AI-generated refactoring suggestions, paid per call via x402 on Base. - [CoinOpSelect Reserves Classify API](https://www.zero.xyz/c/coinopselect-reserves-classify-api-f274bc0f/llms.txt): $0.01/call via x402. Classifies on-chain reserve data based on a drift basis-points parameter, returning a structured classification object. - [CoinOpSelect Code Complexity Analyzer](https://www.zero.xyz/c/coinopselect-code-complexity-analyzer-5ff10d0a/llms.txt): $0.01/call via x402. Analyzes source code and returns a complexity report for the provided code snippet or file. - [CoinOpSelect Cheapest Compute Lookup](https://www.zero.xyz/c/coinopselect-cheapest-compute-lookup-02b0fd8e/llms.txt): $0.01/call via x402. Returns the cheapest available compute option for a given type, method, and tier/hours configuration on Base. - [CoinOpSelect Treasury Stack Lookup](https://www.zero.xyz/c/coinopselect-treasury-stack-lookup-51231775/llms.txt): $0.01/call via x402. Retrieves on-chain treasury stack data including token, wallet, contract, and DeFi research information via x402 micropayment on Base. - [CoinOpSelect Dataset Curate API](https://www.zero.xyz/c/coinopselect-dataset-curate-api-3346bdec/llms.txt): $0.01/call via x402. Accepts an array of labeled data samples and returns a curated dataset report for on-chain AI agent training or research workflows, paid per call via x402 on Base. - [CoinOpSelect Treasury Yield Policy API](https://www.zero.xyz/c/coinopselect-treasury-yield-policy-api-d4a6d049/llms.txt): $0.01/call via x402. Returns the yield policy configuration for treasury operations on the CoinOpSelect on-chain data platform, paid via x402 on Base. Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. - [Zero catalog index](https://www.zero.xyz/llms.txt)