# Services from dt0ur.online on Zero > dt0ur.online serves 77 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/dt0ur.online Live health (JSON, refreshed every minute): https://www.zero.xyz/host/dt0ur.online/health.json ## Services - [dt0ur.online Crypto Market Brief](https://www.zero.xyz/c/dt0ur-online-crypto-market-brief-11f200de/llms.txt): $0.02/call via x402. Returns a comprehensive one-call market snapshot for 50+ major cryptocurrencies, including USD price, 24h change, spot high/low/volume, bid/ask, perpetual funding rate, open interest, perp-vs-spot basis, Fear & Greed index, and plain-language trading signals. - [dt0ur.online On-Chain Address Classifier](https://www.zero.xyz/c/dt0ur-online-on-chain-address-classifier-fdcd0656/llms.txt): $0.01/call via x402. Classifies an EVM address on multiple chains as EOA wallet or contract, and extracts proxy type, token standard, Safe multisig config, and ownership info. - [dt0ur.online Historical OHLCV Candlestick Data](https://www.zero.xyz/c/dt0ur-online-historical-ohlcv-candlestick-data-20bae684/llms.txt): $0.01/call via x402. Returns historical OHLCV candlestick data for Coinbase spot pairs at configurable time intervals, up to 300 candles oldest-first. - [ERC-20 Token Risk Report](https://www.zero.xyz/c/erc-20-token-risk-report-388b0002/llms.txt): $0.02/call via x402. Performs one-call on-chain due diligence on an ERC-20 token, returning supply/price/FDV, ownership, upgradeability, liquidity pool data, and a 0-100 heuristic risk score across six EVM chains. - [Coinbase Spot Order Book](https://www.zero.xyz/c/coinbase-spot-order-book-a4000f3a/llms.txt): $0.01/call via x402. Returns live order book data for a Coinbase spot trading pair, including best bid/ask, mid price, spread in basis points, USD liquidity within 1% of mid, and top bid/ask levels. - [dt0ur.online Multi-Chain Wallet Balance Lookup](https://www.zero.xyz/c/dt0ur-online-multi-chain-wallet-balance-lookup-23a590f0/llms.txt): $0.01/call via x402. Returns native coin and ERC-20 token balances with live USD prices and total portfolio value for any wallet address across six EVM chains in a single call. - [dt0ur.online EDI Document Parser](https://www.zero.xyz/c/dt0ur-online-edi-document-parser-55fe4ad3/llms.txt): $0.01/call via x402. Parses ANSI X12 and UN/EDIFACT EDI documents into structured JSON, CSV, cXML, or a rendered PDF invoice - [ERC-20 Token Allowance Checker](https://www.zero.xyz/c/erc-20-token-allowance-checker-f046c736/llms.txt): $0.01/call via x402. Checks how much a spender (router, Permit2, contract) is approved to move from an owner's wallet for a given ERC-20 token on major EVM chains, including whether the approval is unlimited or covers the full balance. - [dt0ur.online Multi-Chain Gas Price Comparator](https://www.zero.xyz/c/dt0ur-online-multi-chain-gas-price-comparator-9f5c4af2/llms.txt): $0.01/call via x402. Returns live base fees, gas prices (in gwei), and USD costs for native and ERC-20 transfers across up to 6 EVM chains, sorted cheapest-first so an agent can pick the optimal chain to transact on. - [EVM Transaction Lookup by Hash](https://www.zero.xyz/c/evm-transaction-lookup-by-hash-ea2fa826/llms.txt): $0.01/call via x402. Fetches full transaction details by hash on major EVM chains, including status, block info, gas, fees in USD, method selector, and decoded ERC-20 transfers. - [dt0ur.online Wallet Profile](https://www.zero.xyz/c/dt0ur-online-wallet-profile-3c22716a/llms.txt): $0.01/call via x402. Returns a comprehensive on-chain profile for an EVM wallet address including ENS name, account type, multi-chain balances with USD values, transaction counts, top holdings, total portfolio value, and activity tier. - [dt0ur.online Crypto Token Price API](https://www.zero.xyz/c/dt0ur-online-crypto-token-price-api-7d1ac854/llms.txt): $0.01/call via x402. Returns live USD prices and 24-hour percentage change for up to 25 crypto tokens per call, identified by ticker, CoinGecko ID, or chain:address - [ERC-20 Token Lookup by Contract Address](https://www.zero.xyz/c/erc-20-token-lookup-by-contract-address-16cc8388/llms.txt): $0.01/call via x402. Looks up ERC-20 token metadata and live market data (name, symbol, decimals, total supply, USD price, FDV, proxy status) by contract address across 6 EVM chains - [dt0ur.online Case Converter](https://www.zero.xyz/c/dt0ur-online-case-converter-38662e5c/llms.txt): $0.01/call via x402. Converts a given text string into a specified naming convention: camelCase, snake_case, kebab-case, PascalCase, Title Case, or URL slug. - [Cron Expression Describer & Next-Run Calculator](https://www.zero.xyz/c/cron-expression-describer-next-run-calculator-f8d56160/llms.txt): $0.01/call via x402. Translates a standard cron expression into a human-readable description and computes its next N scheduled run times. - [Solana Wallet Balance Lookup (SOL + SPL Tokens)](https://www.zero.xyz/c/solana-wallet-balance-lookup-sol-spl-tokens-541b9d2e/llms.txt): $0.01/call via x402. Returns the full Solana wallet portfolio: native SOL balance, all SPL and Token-2022 token holdings (mint, symbol, amount), live USD prices, and total portfolio value. - [DeFi TVL Lookup & Protocol Rankings](https://www.zero.xyz/c/defi-tvl-lookup-protocol-rankings-42c74ac6/llms.txt): $0.01/call via x402. Looks up total value locked (TVL) for a specific DeFi protocol or ranks top protocols overall, by chain, or by category with 1d/7d change data. - [Hyperliquid Perpetual Futures Market Data](https://www.zero.xyz/c/hyperliquid-perpetual-futures-market-data-e26cc098/llms.txt): $0.01/call via x402. Returns funding rates, open interest, mark/oracle prices, volume, and 24h change for Hyperliquid perpetual futures markets, with filtering and sorting options. - [ENS Name Resolver (dt0ur.online)](https://www.zero.xyz/c/ens-name-resolver-dt0ur-online-e9ef6bb4/llms.txt): $0.01/call via x402. Resolves ENS .eth names to Ethereum addresses (with avatar, URL, and Twitter records) or reverse-resolves addresses to their verified primary ENS name via the ENS Universal Resolver on Ethereum mainnet. - [dt0ur.online Web Scraper](https://www.zero.xyz/c/dt0ur-online-web-scraper-76733983/llms.txt): $0.05/call via x402. Extracts sanitized, boilerplate-free markdown and clean text from public web URLs, with SSRF protection against private network access. - [Coinbase Spot Pair 24h Market Stats](https://www.zero.xyz/c/coinbase-spot-pair-24h-market-stats-8ae89ba0/llms.txt): $0.01/call via x402. Returns 24-hour ticker statistics for a Coinbase spot trading pair, including last price, open, high, low, percent change, base volume, USD volume, 30-day volume, and current bid/ask spread. - [dt0ur.online QR Code Generator](https://www.zero.xyz/c/dt0ur-online-qr-code-generator-f0fcf0c4/llms.txt): $0.01/call via x402. Generates a QR code for provided text, returning either an SVG markup string or a base64-encoded PNG data URI. - [DeFi Yield Finder](https://www.zero.xyz/c/defi-yield-finder-03f0f576/llms.txt): $0.01/call via x402. Returns ranked DeFi yield opportunities across 500+ protocols and all major chains, with APY, TVL, impermanent-loss risk, and outlook metrics, filterable by token, chain, protocol, and stablecoin status. - [DEX Liquidity Pool Search](https://www.zero.xyz/c/dex-liquidity-pool-search-2aa633d3/llms.txt): $0.01/call via x402. Search DEX liquidity pools for a token by contract address or symbol/name across Ethereum, Base, Solana, Arbitrum, BSC, and more, returning price, liquidity, volume, and market metrics sorted by liquidity. - [dt0ur.online Audio Stem Separator](https://www.zero.xyz/c/dt0ur-online-audio-stem-separator-d090d59c/llms.txt): $0.6/call via x402. Separates a mixed audio track into isolated stems: vocals, bass, drums, and harmonic instrumentals using DSP filter banks. - [dt0ur.online Sentiment Analysis](https://www.zero.xyz/c/dt0ur-online-sentiment-analysis-c12bca91/llms.txt): $0.05/call via x402. Classifies text as POSITIVE or NEGATIVE sentiment with a confidence probability score using DistilBERT SST-2 - [JWT Decoder (dt0ur.online)](https://www.zero.xyz/c/jwt-decoder-dt0ur-online-cd38fe43/llms.txt): $0.01/call via x402. Decodes a JWT's header and payload into readable JSON for inspection and debugging, without verifying the signature. - [dt0ur.online Crypto & Forex Live Ticker](https://www.zero.xyz/c/dt0ur-online-crypto-forex-live-ticker-91911e8e/llms.txt): $0.05/call via x402. Returns sub-second live spot prices and trading ticks for crypto assets and forex pairs, with optional TTL cache bypass. - [dt0ur.online Browser Automation](https://www.zero.xyz/c/dt0ur-online-browser-automation-f8006613/llms.txt): $0.08/call via x402. Renders a public URL using a real Chromium browser in sandbox mode, returning either the fully-rendered HTML DOM or a base64-encoded screenshot. - [dt0ur.online DNS Resolver](https://www.zero.xyz/c/dt0ur-online-dns-resolver-fbffd7cf/llms.txt): $0.05/call via x402. Resolves A, CNAME, MX, and TXT DNS records globally via isolated public resolvers with DNS rebinding protection - [dt0ur.online OCR – Client-Side Tesseract.js Image Text Extraction](https://www.zero.xyz/c/dt0ur-online-ocr-client-side-tesseract-js-image-text-extraction-81259651/llms.txt): $0.1/call via x402. Extracts textual content from an image URL using client-side Tesseract.js and returns recognized text with per-word confidence scores. - [PDF Document Extractor](https://www.zero.xyz/c/pdf-document-extractor-a310025d/llms.txt): $0.05/call via x402. Parses multi-page PDF documents from a public URL and returns structured text content along with page counts. - [dt0ur.online Text-to-Speech (SpeechT5)](https://www.zero.xyz/c/dt0ur-online-text-to-speech-speecht5-20065c29/llms.txt): $0.15/call via x402. Synthesizes natural-sounding human speech audio from a text string using SpeechT5 neural TTS models with selectable speaker voice profiles. - [dt0ur.online Text Embedding API](https://www.zero.xyz/c/dt0ur-online-text-embedding-api-fc6b270b/llms.txt): $0.05/call via x402. Generates 384-dimensional normalized dense vector embeddings from input text using the all-MiniLM-L6-v2 transformer model, suitable for RAG indexing and semantic search. - [dt0ur.online Image Captioning (ViT-GPT2)](https://www.zero.xyz/c/dt0ur-online-image-captioning-vit-gpt2-1250ea2e/llms.txt): $0.15/call via x402. Generates descriptive, context-aware natural language captions from a public image URL using ViT-GPT2 vision-language models. - [dt0ur.online JavaScript Sandbox](https://www.zero.xyz/c/dt0ur-online-javascript-sandbox-94d73f36/llms.txt): $0.05/call via x402. Executes untrusted JavaScript expressions in an isolated, frozen Node.js VM with a 1000ms CPU timeout and memory constraints - [dt0ur.online IP Geolocation](https://www.zero.xyz/c/dt0ur-online-ip-geolocation-55393ed1/llms.txt): $0.05/call via x402. Resolves an IPv4 or IPv6 address to geographic coordinates, country, ISP, ASN, and timezone. - [dt0ur.online HackerNews Trending Feed](https://www.zero.xyz/c/dt0ur-online-hackernews-trending-feed-81681035/llms.txt): $0.05/call via x402. Fetches real-time trending technology articles, developer discussions, and venture announcements from HackerNews - [Royalty Split Calculator](https://www.zero.xyz/c/royalty-split-calculator-9adb2ecc/llms.txt): $0.2/call via x402. Splits a micropayment payout pool across multiple contributor wallet addresses with sub-cent precision rounding and no floating-point drift. - [dt0ur.online Base64 Encoder/Decoder](https://www.zero.xyz/c/dt0ur-online-base64-encoder-decoder-79ba454e/llms.txt): $0.01/call via x402. Encodes plain text to Base64 or decodes a Base64-encoded string back to plain text. - [dt0ur.online Color Converter & WCAG Contrast Checker](https://www.zero.xyz/c/dt0ur-online-color-converter-wcag-contrast-checker-0fb92c03/llms.txt): $0.01/call via x402. Converts a color between HEX, RGB, and HSL formats and optionally computes the WCAG contrast ratio against a second color. - [Levenshtein Edit Distance & String Similarity API](https://www.zero.xyz/c/levenshtein-edit-distance-string-similarity-api-a471b24a/llms.txt): $0.01/call via x402. Computes the Levenshtein edit distance and a similarity percentage between two input strings. - [dt0ur.online Password & Token Generator](https://www.zero.xyz/c/dt0ur-online-password-token-generator-60eaae50/llms.txt): $0.01/call via x402. Generates a cryptographically random password or token of a specified length, with optional punctuation symbols. - [Text Statistics & Readability Analyzer](https://www.zero.xyz/c/text-statistics-readability-analyzer-3d846a70/llms.txt): $0.01/call via x402. Computes word count, character count, sentence count, estimated reading time, and Flesch-Kincaid grade level for a given text input. - [dt0ur.online Speech Transcription](https://www.zero.xyz/c/dt0ur-online-speech-transcription-4217b559/llms.txt): $0.2/call via x402. Transcribes spoken audio from a WAV file URL into timestamped English text using Whisper neural speech recognition. - [dt0ur.online Trivia Question API](https://www.zero.xyz/c/dt0ur-online-trivia-question-api-d6d479c4/llms.txt): $0.01/call via x402. Returns a random multiple-choice trivia question, optionally filtered by difficulty level (easy, medium, or hard). - [dt0ur.online Math Solver](https://www.zero.xyz/c/dt0ur-online-math-solver-032a49cb/llms.txt): $0.05/call via x402. Evaluates complex algebraic, trigonometric, unit conversion, and matrix equations with exact deterministic precision using mathjs - [Luhn Algorithm Validator](https://www.zero.xyz/c/luhn-algorithm-validator-0cfbcfe0/llms.txt): $0.01/call via x402. Validates a numeric string (credit card number or IMEI) against the Luhn checksum algorithm to determine if it is structurally valid. - [dt0ur.online Geocoding API](https://www.zero.xyz/c/dt0ur-online-geocoding-api-6546e489/llms.txt): $0.05/call via x402. Converts street addresses, city names, and landmarks into precise GPS coordinates and boundary data. - [dt0ur.online Audio Fingerprinting](https://www.zero.xyz/c/dt0ur-online-audio-fingerprinting-4da9fea5/llms.txt): $0.15/call via x402. Generates standardized Chromaprint acoustic fingerprints from audio files for copyright matching and track identification. - [OFAC Sanctions Compliance Checker for Agent DIDs and Wallets](https://www.zero.xyz/c/ofac-sanctions-compliance-checker-for-agent-dids-and-wallets-d7055862/llms.txt): $0.1/call via x402. Checks agent DIDs and Ethereum/Solana wallet addresses against US Treasury OFAC sanctions lists, returning risk scores and compliance flags. - [NASA Astronomy Picture of the Day](https://www.zero.xyz/c/nasa-astronomy-picture-of-the-day-01ed3cd9/llms.txt): $0.01/call via x402. Returns NASA's Astronomy Picture of the Day (APOD) — a featured space image or video with an explanatory caption — for a given date. - [dt0ur.online ZIP/Postal Code to Geolocation Resolver](https://www.zero.xyz/c/dt0ur-online-zip-postal-code-to-geolocation-resolver-203c7dbc/llms.txt): $0.05/call via x402. Resolves postal and ZIP codes worldwide to latitude, longitude, state/province, and municipal jurisdiction data. - [dt0ur.online Wikipedia Semantic Search](https://www.zero.xyz/c/dt0ur-online-wikipedia-semantic-search-9a4e02bc/llms.txt): $0.05/call via x402. Performs fast semantic search over Wikipedia with caching, snippet extraction, and canonical reference URLs for contextual grounding - [dt0ur.online Machine Translation (M2M-100)](https://www.zero.xyz/c/dt0ur-online-machine-translation-m2m-100-d9d8c7fb/llms.txt): $0.1/call via x402. Translates text between 100+ language pairs using the Xenova M2M-100 sequence-to-sequence neural translation model. - [MusicBrainz Artist & Discography Search](https://www.zero.xyz/c/musicbrainz-artist-discography-search-df54fc9a/llms.txt): $0.1/call via … (truncated at 16384 bytes)