# Services from x402-safe-upgrade-api.onrender.com on Zero

> x402-safe-upgrade-api.onrender.com serves 17 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/x402-safe-upgrade-api.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-safe-upgrade-api.onrender.com/health.json

## Services

- [Safe Upgrade Decision API](https://www.zero.xyz/c/safe-upgrade-decision-api-78248226/llms.txt): $0.03/call via x402. Analyzes npm package version changes and returns evidence-backed upgrade safety signals, including breaking change mentions and security flags.
- [Safe Upgrade Decision API – npm Malicious Scan](https://www.zero.xyz/c/safe-upgrade-decision-api-npm-malicious-scan-6ebebaf6/llms.txt): $0.03/call via x402. Scans an npm package (and optional version) for malicious activity and returns an evidence-backed upgrade verdict with a risk score.
- [Safe Upgrade Decision API](https://www.zero.xyz/c/safe-upgrade-decision-api-cf8e7a48/llms.txt): $0.03/call via x402. Analyzes an npm package (and optional version) for security and supply-chain risk signals, returning a scored verdict to help coding agents decide whether to approve an upgrade.
- [Safe Upgrade Decision API](https://www.zero.xyz/c/safe-upgrade-decision-api-24cce8e8/llms.txt): $0.03/call via x402. Analyzes an npm package upgrade path and returns an evidence-backed recommendation on whether it is safe to upgrade.
- [Safe Upgrade Decision API](https://www.zero.xyz/c/safe-upgrade-decision-api-18aaf804/llms.txt): $0.25/call via x402. Audits npm package dependencies for vulnerabilities, deprecations, and upgrade safety, returning evidence-backed recommendations for coding agents.
- [Safe Upgrade Decision API](https://www.zero.xyz/c/safe-upgrade-decision-api-eacb21e2/llms.txt): $0.1/call via x402. Audits npm lockfiles (package-lock.json or yarn.lock) to identify vulnerable packages and provide evidence-backed upgrade decisions for coding agents.
- [Safe Upgrade Decision API – License Check](https://www.zero.xyz/c/safe-upgrade-decision-api-license-check-9e9e96ec/llms.txt): $0.03/call via x402. Checks npm packages against license compliance rules and returns evidence-backed pass/fail decisions for each package.
- [Website Change Comparison API](https://www.zero.xyz/c/website-change-comparison-api-8ed85f33/llms.txt): $0.02/call via x402. Compares two snapshots of a webpage to identify added and removed content between versions.
- [Safe Upgrade Decision API – Document Comparison](https://www.zero.xyz/c/safe-upgrade-decision-api-document-comparison-3194fb71/llms.txt): $0.02/call via x402. Compares two text documents (e.g. changelogs, README files, package docs) and returns similarity metrics to support evidence-backed npm package upgrade decisions.
- [EVM Address Activity Summary API](https://www.zero.xyz/c/evm-address-activity-summary-api-dfff7b17/llms.txt): $0.02/call via x402. Returns a summary of transaction count and token transfer activity for an EVM address over a specified block window on Base or Base Sepolia.
- [Blockchain Transaction Receipt Lookup](https://www.zero.xyz/c/blockchain-transaction-receipt-lookup-e1d3b198/llms.txt): $0.02/call via x402. Looks up the on-chain transaction receipt for a given transaction hash on Base or Base Sepolia, returning status, fee, confirmation, and explorer URL.
- [Blockchain Transaction Status Checker](https://www.zero.xyz/c/blockchain-transaction-status-checker-222598c6/llms.txt): $0.02/call via x402. Looks up the confirmation status of a blockchain transaction by hash on Base or Base Sepolia networks
- [EVM Wallet Balance Lookup API](https://www.zero.xyz/c/evm-wallet-balance-lookup-api-3e5f9940/llms.txt): $0.02/call via x402. Retrieves native and ERC-20 token balances for a given EVM wallet address on Base or Base Sepolia networks.
- [Webhook Reliability Assessment API](https://www.zero.xyz/c/webhook-reliability-assessment-api-39c99318/llms.txt): $0.02/call via x402. Analyzes a batch of webhook delivery attempts (status codes and latencies) to compute a reliability summary including success rate.
- [Safe Upgrade Decision API – Content Repurposing Package](https://www.zero.xyz/c/safe-upgrade-decision-api-content-repurposing-package-66689e1a/llms.txt): $0.02/call via x402. Analyzes submitted content and returns evidence-backed repurposing or repackaging recommendations for npm package upgrade decisions in coding agent workflows.
- [Invoice & Receipt Extraction API](https://www.zero.xyz/c/invoice-receipt-extraction-api-e92fc4b1/llms.txt): $0.02/call via x402. Extracts structured fields (reference numbers, amounts, dates, line items) from invoice or receipt document text.
- [Transaction Reconciliation Report API](https://www.zero.xyz/c/transaction-reconciliation-report-api-26acb0e9/llms.txt): $0.02/call via x402. Reconciles ledger entries against transaction entries and returns a matched summary report

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)