# Services from x402-gateway.blackwoodstate8.workers.dev on Zero

> x402-gateway.blackwoodstate8.workers.dev serves 33 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-gateway.blackwoodstate8.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-gateway.blackwoodstate8.workers.dev/health.json

## Services

- [FAA US Airport Delays API](https://www.zero.xyz/c/faa-us-airport-delays-api-1e972048/llms.txt): $0.007/call via x402. Returns current FAA-sourced US airport delay information including ground stops, ground delay programs, arrival/departure delays, and closures for one or all US airports
- [x402-gateway Sentiment Analysis (DistilBERT SST-2)](https://www.zero.xyz/c/x402-gateway-sentiment-analysis-distilbert-sst-2-7f3aa8f5/llms.txt): $0.004/call via x402. Classifies English text as positive or negative with a confidence score using DistilBERT SST-2, supporting single texts or batches of up to 20.
- [x402 News Headlines Search (GDELT, 72h)](https://www.zero.xyz/c/x402-news-headlines-search-gdelt-72h-daaf43ae/llms.txt): $0.008/call via x402. Returns recent news headlines from the last 72 hours matching a keyword query, sourced from GDELT, with metadata including tone, people, organizations, and images.
- [QR Code Generator (SVG)](https://www.zero.xyz/c/qr-code-generator-svg-110561d8/llms.txt): $0.004/call via x402. Generates a QR code as SVG markup and data URL from a text string or URL, with configurable error correction and border settings
- [x402-gateway Crypto News Headlines](https://www.zero.xyz/c/x402-gateway-crypto-news-headlines-f83e6cf9/llms.txt): $0.005/call via x402. Fetches the latest crypto and blockchain news headlines from the last 72 hours via GDELT, with tone, people, and organization metadata
- [Timezone Conversion API (x402-gateway.blackwoodstate8.workers.dev)](https://www.zero.xyz/c/timezone-conversion-api-x402-gateway-blackwoodstate8-workers-dev-63208b6c/llms.txt): $0.003/call via x402. Converts a date/time between IANA time zones with daylight saving rules, returning UTC offsets, abbreviations, and current local times.
- [Multi-Chain Gas Fee Estimator (Ethereum, Base, Solana)](https://www.zero.xyz/c/multi-chain-gas-fee-estimator-ethereum-base-solana-43ccf8e3/llms.txt): $0.002/call via x402. Returns live EIP-1559 gas fee estimates (slow/standard/fast) for Ethereum and Base plus priority fees for Solana in a single paid API call
- [Blackwood News Briefing](https://www.zero.xyz/c/blackwood-news-briefing-40941c81/llms.txt): $0.04/call via x402. Returns a structured research briefing on a topic by fetching, reading, and summarizing up to 3 recent GDELT news articles in a single call
- [Bulk Email Validation API (x402-gateway.blackwoodstate8.workers.dev)](https://www.zero.xyz/c/bulk-email-validation-api-x402-gateway-blackwoodstate8-workers-dev-30a99863/llms.txt): $0.02/call via x402. Validates up to 20 email addresses per call, checking syntax, MX records, disposable/free/role flags, SPF, DMARC, and returning a verdict for each address.
- [ECB FX History – 90-Day Daily Exchange Rates](https://www.zero.xyz/c/ecb-fx-history-90-day-daily-exchange-rates-35413452/llms.txt): $0.005/call via x402. Returns 90 days of daily ECB euro reference rates for up to 10 currencies, rebased to any base currency with min, max, and percent change stats.
- [ECB Euro Foreign Exchange Reference Rates](https://www.zero.xyz/c/ecb-euro-foreign-exchange-reference-rates-8a3a652d/llms.txt): $0.005/call via x402. Returns ECB euro reference rates for ~30 currencies, rebased to any currency as cross rates, with optional amount conversion
- [HTTP Security Headers Audit](https://www.zero.xyz/c/http-security-headers-audit-4fdfb728/llms.txt): $0.007/call via x402. Audits the HTTP security headers of a public URL, returning a letter grade, score, per-header pass/warn/fail results, and actionable fix advice.
- [Domain Intelligence Lookup (RDAP, DNS, SPF, DMARC, TLS Certs)](https://www.zero.xyz/c/domain-intelligence-lookup-rdap-dns-spf-dmarc-tls-certs-fcea3686/llms.txt): $0.02/call via x402. Returns comprehensive domain intelligence including RDAP registration data, DNS records, email security (SPF/DMARC), and certificate transparency logs for a given domain.
- [Blackwood State Random Number Generator (x402)](https://www.zero.xyz/c/blackwood-state-random-number-generator-x402-f10d175d/llms.txt): $0.005/call via x402. Generates cryptographically secure random values — integers, dice rolls, coin flips, UUIDs, or random bytes — via Workers Web Crypto CSPRNG, paid per call via x402.
- [x402-gateway Text Summarizer](https://www.zero.xyz/c/x402-gateway-text-summarizer-b2dbabfa/llms.txt): $0.008/call via x402. Summarizes plain text (articles, notes, transcripts) into a short paragraph and key bullet points using IBM Granite 4.0 Micro via Workers AI, for 0.008 USDC per call.
- [x402-gateway Text-to-Speech (MeloTTS)](https://www.zero.xyz/c/x402-gateway-text-to-speech-melotts-b5f6d8b3/llms.txt): $0.023/call via x402. Converts short text (up to 1000 characters) into WAV audio using MeloTTS on Workers AI, returning base64-encoded audio in one of six languages, billed at $0.023 USDC per call.
- [x402-gateway Text Translation (Meta M2M100)](https://www.zero.xyz/c/x402-gateway-text-translation-meta-m2m100-50a89bd0/llms.txt): $0.012/call via x402. Translates text between approximately 100 languages using Meta's M2M100 1.2B model, returning translated text with source and target language identifiers.
- [Multi-Chain Wallet Portfolio & Transaction History](https://www.zero.xyz/c/multi-chain-wallet-portfolio-transaction-history-b1f88ecc/llms.txt): $0.003/call via x402. Returns native and major-token balances plus recent transfer history for a wallet address on Ethereum, Base, and/or Solana
- [Company Research Dossier (x402 Gateway)](https://www.zero.xyz/c/company-research-dossier-x402-gateway-72bcae85/llms.txt): $0.03/call via x402. Returns a bundled company intelligence dossier covering domain registration, DNS, email/web security, recent news, and optional SEC financials for a given website domain and stock ticker.
- [MET Norway Hourly Weather Forecast via x402 Gateway](https://www.zero.xyz/c/met-norway-hourly-weather-forecast-via-x402-gateway-0c11f084/llms.txt): $0.003/call via x402. Returns an hourly weather forecast (temperature, precipitation, wind, humidity, cloud cover, weather symbol) for a given latitude/longitude using MET Norway data, paid via x402 micropayment.
- [Blackwood State Email Check](https://www.zero.xyz/c/blackwood-state-email-check-29711769/llms.txt): $0.005/call via x402. Validates an email address by checking syntax, domain existence, MX records, disposable/free/role flags, SPF, and DMARC — without SMTP probing — and returns a deliverability verdict.
- [Blackwood Web Markdown Extractor](https://www.zero.xyz/c/blackwood-web-markdown-extractor-84d33bc2/llms.txt): $0.01/call via x402. Fetches a public web page and returns its content as clean Markdown, along with metadata like title, description, language, canonical URL, and links.
- [x402 Speech-to-Text Transcription & Translation](https://www.zero.xyz/c/x402-speech-to-text-transcription-translation-d05284eb/llms.txt): $0.05/call via x402. Transcribes or translates an audio file at a public URL using Whisper, returning timed segments, language detection, and full text asynchronously via a job polling model
- [Blackwood State Base Token Price](https://www.zero.xyz/c/blackwood-state-base-token-price-45fae1be/llms.txt): $0.002/call via x402. Returns the real-time USD price of any Base-chain token computed on-chain from its deepest Uniswap v3 pool against USDC or WETH, along with pool address, fee tier, and liquidity depth.
- [ENS Name & Address Lookup](https://www.zero.xyz/c/ens-name-address-lookup-ae60ee9b/llms.txt): $0.003/call via x402. Resolves an ENS name to an Ethereum address (or reverse-resolves an address to its primary ENS name) and returns avatar, profile text records, and metadata in one call.
- [Wallet Portfolio USD Value (Ethereum & Base)](https://www.zero.xyz/c/wallet-portfolio-usd-value-ethereum-base-d86c61e0/llms.txt): $0.003/call via x402. Returns the total USD value, native and major-token balances, and per-chain totals for a 0x wallet address on Ethereum and Base, priced via Uniswap v3 pools.
- [x402 Altcoin Discovery – Base New Token Listings](https://www.zero.xyz/c/x402-altcoin-discovery-base-new-token-listings-7732a67e/llms.txt): $0.003/call via x402. Returns newly created Uniswap v3 liquidity pools on Base chain (paired with WETH or USDC), read from on-chain pool creation events, with price, depth, and age data
- [Blackwood State AI Image Generator (FLUX.1 schnell)](https://www.zero.xyz/c/blackwood-state-ai-image-generator-flux-1-schnell-aa772f9e/llms.txt): $0.03/call via x402. Generates a 1024x1024 JPEG image from a text prompt using FLUX.1 schnell on Workers AI, returning a jobId and poll URL for async retrieval, at $0.03 USDC per call.
- [PDF Text Extractor (x402-gateway.blackwoodstate8.workers.dev)](https://www.zero.xyz/c/pdf-text-extractor-x402-gateway-blackwoodstate8-workers-dev-6e9371c6/llms.txt): $0.05/call via x402. Extracts page-by-page text content and metadata from a publicly accessible PDF URL, returning results asynchronously via a job polling pattern.
- [Base Wallet ERC20 Token Balance Checker](https://www.zero.xyz/c/base-wallet-erc20-token-balance-checker-495a0474/llms.txt): $0.003/call via x402. Returns ETH and ERC20 token balances for a wallet address on the Base network, reading 21 major tokens plus custom tokens on-chain in a single block
- [SEC Financial Facts by Ticker](https://www.zero.xyz/c/sec-financial-facts-by-ticker-45c66410/llms.txt): $0.02/call via x402. Returns a US-listed company's last two fiscal years of key annual financials (revenue, net income, EPS, cash flow, balance sheet) sourced directly from SEC filings for 0.02 USDC per call.
- [x402-gateway LLM Chat Completion (IBM Granite 4.0 Micro)](https://www.zero.xyz/c/x402-gateway-llm-chat-completion-ibm-granite-4-0-micro-5c203978/llms.txt): $0.03/call via x402. Runs an asynchronous LLM chat completion using IBM Granite 4.0 Micro on Workers AI, returning a jobId and pollUrl for lightweight tasks like summarization, extraction, and classification.
- [x402 Endpoint Checker & Validator](https://www.zero.xyz/c/x402-endpoint-checker-validator-ffd4e002/llms.txt): $0.007/call via x402. Validates whether a public URL correctly implements the x402 payment protocol by checking for 402 responses, parsing payment options, and surfacing discovery metadata problems — without actually paying.

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

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