# Services from webtools402.176-109-107-191.sslip.io on Zero

> webtools402.176-109-107-191.sslip.io serves 34 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/webtools402.176-109-107-191.sslip.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/webtools402.176-109-107-191.sslip.io/health.json

## Services

- [FHFA House Price Index by Geography](https://www.zero.xyz/c/fhfa-house-price-index-by-geography-e9f59de0/llms.txt): $0.015/call via x402. Returns the FHFA House Price Index for a US geography, including current index level, year-over-year, quarter-over-quarter, and 5-year growth rates, momentum flags, and recent history.
- [Crypto Hash & Selector Calculator (keccak256, sha256, ENS, ABI selector)](https://www.zero.xyz/c/crypto-hash-selector-calculator-keccak256-sha256-ens-abi-selector-90c2e03b/llms.txt): $0.001/call via x402. Computes keccak256, sha256, 4-byte ABI function selectors, event topic0 hashes, ENS namehash, or ENS labelhash from a string or hex input.
- [Ethereum Unit & Address Converter](https://www.zero.xyz/c/ethereum-unit-address-converter-ff3e0b23/llms.txt): $0.001/call via x402. Converts between Ethereum token denominations (wei/gwei/ether or arbitrary decimals), between hex and integer representations, and computes or validates EIP-55 checksummed Ethereum addresses.
- [EIP-191/EIP-712 Signature Verification & Signer Recovery](https://www.zero.xyz/c/eip-191-eip-712-signature-verification-signer-recovery-270c53a3/llms.txt): $0.003/call via x402. Verifies an Ethereum EIP-191 personal_sign or EIP-712 typed-data signature and recovers the signer's address from the message and signature inputs.
- [webtools402 Data Format Converter](https://www.zero.xyz/c/webtools402-data-format-converter-b79e1d5f/llms.txt): $0.001/call via x402. Converts data between formats including JSON, CSV, YAML, TOML, Markdown, HTML, base64, hex, and plain text — all pure-compute with no network I/O.
- [GitHub Repository Health & Intelligence](https://www.zero.xyz/c/github-repository-health-intelligence-def005b3/llms.txt): $0.005/call via x402. Fetches GitHub repository health metrics and computed due-diligence signals (stars, forks, issues, activity, license, topics) for any public repo via the GitHub REST API.
- [GitHub Trending Repositories Search](https://www.zero.xyz/c/github-trending-repositories-search-5008adfb/llms.txt): $0.005/call via x402. Returns top GitHub repositories filtered by language and/or topic, ranked by stars, forks, or recency, via the official GitHub Search API.
- [Hacker News Engagement Metrics via Algolia Search](https://www.zero.xyz/c/hacker-news-engagement-metrics-via-algolia-search-b97f12d3/llms.txt): $0.003/call via x402. Returns Hacker News story count, total/average points and comments, and top stories for a given search query over a configurable time window.
- [Package Intelligence API (npm/PyPI/crates)](https://www.zero.xyz/c/package-intelligence-api-npm-pypi-crates-e5a2f41b/llms.txt): $0.005/call via x402. Returns version, age, release cadence, deprecation/yank status, license, and download stats with trend for a package on npm, PyPI, or crates.io
- [Base DEX Swap History & Buy/Sell Flow](https://www.zero.xyz/c/base-dex-swap-history-buy-sell-flow-0e8c747a/llms.txt): $0.01/call via x402. Returns recent swap history and buy/sell flow summary for a token or liquidity pool on Base, decoded from Aerodrome/Uniswap-V3 on-chain event logs.
- [Domain Enrichment API — Registration, DNS, TLS, Web & Tech-Stack Profile](https://www.zero.xyz/c/domain-enrichment-api-registration-dns-tls-web-tech-stack-profile-58bc6d29/llms.txt): $0.015/call via x402. Aggregates a multi-block public profile for any domain including WHOIS/RDAP registration data, DNS records, TLS certificate details, homepage metadata, and tech-stack detection in a single call.
- [Email Domain DNS & Deliverability Validator](https://www.zero.xyz/c/email-domain-dns-deliverability-validator-26cb57c5/llms.txt): $0.005/call via x402. Validates and classifies an email domain via public DNS: checks MX records, mail provider, SPF/DMARC policies, and flags disposable/free-webmail/role-account addresses with a deliverability signal.
- [Reverse Geocode Coordinates to Street Address (OpenStreetMap + NWS)](https://www.zero.xyz/c/reverse-geocode-coordinates-to-street-address-openstreetmap-nws-3efc6e20/llms.txt): $0.002/call via x402. Converts latitude/longitude coordinates to a full street address with parsed components worldwide, enriched with nearest NWS city/state for US locations.
- [EVM Address Code Inspector (Contract vs EOA Checker)](https://www.zero.xyz/c/evm-address-code-inspector-contract-vs-eoa-checker-a59ba4f5/llms.txt): $0.003/call via x402. Checks whether an EVM address is a smart contract or an externally owned account (EOA) on Base, Ethereum, Arbitrum, Optimism, Polygon, or BNB, returning is_contract flag, deployed bytecode size, and keccak256 code hash.
- [Base L2 Gas Price Lookup](https://www.zero.xyz/c/base-l2-gas-price-lookup-3c0e179e/llms.txt): $0.005/call via x402. Returns the current Base L2 network gas price in gwei by reading live chain state via eth_gasPrice.
- [Webtools402 Cross-Source Market Report](https://www.zero.xyz/c/webtools402-cross-source-market-report-4253eb60/llms.txt): $0.05/call via x402. Returns a comprehensive market report for a crypto token combining Chainlink oracle data, DEX pool data, TVL-weighted VWAP, total pool TVL, recent price change, and volatility.
- [On-Chain USD Spot Price Lookup (Chainlink / Base DEX)](https://www.zero.xyz/c/on-chain-usd-spot-price-lookup-chainlink-base-dex-80e7750a/llms.txt): $0.01/call via x402. Returns the current USD spot price of a token using Chainlink price feeds or the most-liquid Base DEX pool computed from on-chain state.
- [Basename/ENS Name Resolver (Base)](https://www.zero.xyz/c/basename-ens-name-resolver-base-9d737170/llms.txt): $0.005/call via x402. Resolves Basename/ENS names to Ethereum addresses (forward lookup) or resolves addresses back to verified names (reverse lookup with anti-spoofing verification).
- [ERC-20 Token Metadata Lookup](https://www.zero.xyz/c/erc-20-token-metadata-lookup-1502df64/llms.txt): $0.005/call via x402. Fetches live on-chain metadata (name, symbol, decimals, totalSupply) for an ERC-20 token contract on Base, Ethereum, Arbitrum, Optimism, Polygon, or BNB Chain.
- [EVM Transaction Lookup by Hash](https://www.zero.xyz/c/evm-transaction-lookup-by-hash-1a1d56b4/llms.txt): $0.01/call via x402. Looks up a blockchain transaction by hash on Base, Ethereum, Arbitrum, Optimism, Polygon, or BNB, returning sender, recipient, value, nonce, gas, block info, and receipt fields.
- [EVM Wallet Balance Checker (Multi-Chain)](https://www.zero.xyz/c/evm-wallet-balance-checker-multi-chain-85cce04d/llms.txt): $0.005/call via x402. Returns native coin balance plus ERC-20 token balances (raw and human-readable) for any wallet address on Base, Ethereum, Arbitrum, Optimism, Polygon, or BNB Chain
- [sanctions-screen-entity](https://www.zero.xyz/c/sanctions-screen-entity-4375b4e0/llms.txt): $0.005/call via x402. Fuzzy-match a person or organization name against official sanctions lists (OFAC SDN, UK, EU, UN) and return scored matches with program, country, type, and reference details.
- [ERC-20 Token Rug-Check Risk Score](https://www.zero.xyz/c/erc-20-token-rug-check-risk-score-68eab442/llms.txt): $0.02/call via x402. Returns a composite 0-100 risk score, category (low/medium/high/critical), and per-dimension flags for an ERC-20 token across six on-chain risk dimensions on multiple EVM chains
- [NWS Weather Forecast for US Coordinates or Address](https://www.zero.xyz/c/nws-weather-forecast-for-us-coordinates-or-address-be824219/llms.txt): $0.003/call via x402. Returns normalized National Weather Service forecast periods (day/night or hourly) for a US location specified by lat/lon or address, with temperatures in both Celsius and Fahrenheit.
- [NWS US Weather Conditions by Coordinates or Address](https://www.zero.xyz/c/nws-us-weather-conditions-by-coordinates-or-address-53f8fbe3/llms.txt): $0.003/call via x402. Returns current US weather conditions (temperature in Celsius and Fahrenheit, humidity, wind, pressure, and description) from the National Weather Service for a given lat/lon or US address.
- [RSS/Atom/JSON Feed Parser](https://www.zero.xyz/c/rss-atom-json-feed-parser-e41f7f3c/llms.txt): $0.002/call via x402. Fetches and parses any public RSS, Atom, or JSON feed URL into a normalized list of items (title, link, published date, summary, ID, author) plus feed-level metadata.
- [Web Page Link Extractor](https://www.zero.xyz/c/web-page-link-extractor-da07dd11/llms.txt): $0.002/call via x402. Extracts all de-duplicated absolute URLs with anchor text from a public web page, including internal/external counts, declared feeds, and a sitemap hint.
- [WebTools Structured Web Page Parser](https://www.zero.xyz/c/webtools-structured-web-page-parser-bc60cb84/llms.txt): $0.003/call via x402. Fetches and parses a public URL into structured fields: main text, headings, links, tables, and rich metadata (Open Graph, Twitter cards, JSON-LD, canonical, lang).
- [Webtools Sitemap Discovery & Parser](https://www.zero.xyz/c/webtools-sitemap-discovery-parser-2a58cc95/llms.txt): $0.003/call via x402. Fetches and parses a website's sitemap (via robots.txt, /sitemap.xml, or a direct XML URL), returning all URLs with lastmod and priority, with sitemap index support.
- [Web Page Content Extractor (trafilatura)](https://www.zero.xyz/c/web-page-content-extractor-trafilatura-50de9a64/llms.txt): $0.002/call via x402. Fetches a public URL and returns clean markdown or plain text plus metadata, using trafilatura for content extraction.
- [EVM ABI Encode/Decode](https://www.zero.xyz/c/evm-abi-encode-decode-caf5e57d/llms.txt): $0.003/call via x402. ABI-encodes a function call (selector + arguments) or encodes/decodes arbitrary ABI types to build and parse EVM calldata
- [Base DEX Trending Pools](https://www.zero.xyz/c/base-dex-trending-pools-9e20221b/llms.txt): $0.05/call via x402. Returns trending Base L2 DEX pools ranked by recent swap volume and net buy/sell flow, computed from Aerodrome/Uniswap-V3 on-chain Swap event logs.
- [Webtools402 Forward Geocoder (Nominatim)](https://www.zero.xyz/c/webtools402-forward-geocoder-nominatim-d922d9b6/llms.txt): $0.002/call via x402. Forward-geocodes a street address or place name worldwide to geographic coordinates and parsed address components using OpenStreetMap Nominatim.
- [DuckDuckGo Web Search via WebTools](https://www.zero.xyz/c/duckduckgo-web-search-via-webtools-99af8f30/llms.txt): $0.003/call via x402, rated 1.7/5 (1 review). Performs a free-text web search using DuckDuckGo and returns a list of results with title, URL, and snippet for each result.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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