Ethereum mainnet current gas price (gwei) via LlamaRPC eth_gasPrice plus latest block base fee. Use no params. Built for AI agents timing on-chain ops, contract deployment cost estimation, ethereum gas fee estimate Accepts payment on Base or Solana — either network works.

Universal crypto price with smart localization for ANY coin. Auto-adapts pricing currency to your locale (BTC in CNY/JPY/EUR) or stays USD. Params: symbol (BTC, ETH, WIF, or localized names), vs, amount, lang. 任意加密货币实时价格，自动本地化计价，比特币以太坊智能报人民币。暗号資産価格を自動現地化。Precio localizado de cripto. 현지화 암호화폐 시세. Accepts payment on Base or Solana — either network works.

cron parser, cron expression parser, parse cron expression, cron parser online, cron schedule parser, crontab parser, cron syntax parser, cron decoder, cron validator, next run calculator, cron to human readable, crontab inspector, cron job parser. Parse 5-field cron expressions and compute next N execution times. Returns human description + upcoming timestamps. For AI agents, schedule debug, automation pipelines. Accepts payment on Base or Solana — either network works.

Records and verifies hash-only evidence for authorized x402 payee-wallet rotations.

Creates and verifies hash-only latency SLA evidence for paid agent tools.

Tracks hash-only completeness snapshots for paid-agent response contracts across releases.

Normalizes safe agent-commerce profile facts across x402, MCP, and AP2-style surfaces.

Classifies sanitized agent spend facts into operational categories.

Compares caller-supplied x402 facilitator cost facts for buyer-agent routing.

Reconciles sanitized autonomous-purchase intent facts against receipt facts.

Compute the ENS namehash and keccak labelhash for a name like vitalik.eth. For resolvers, registries and agents working with ENS. ens namehash, labelhash, ens node, name resolution, evm utility Accepts payment on Base or Solana — either network works.

sentiment analysis, text sentiment, analyze sentiment, sentiment API, sentiment classifier, emotion detection, opinion mining, sentiment score. Analyze sentiment of any English text. Returns score (positive minus negative), comparative score per token, positive and negative word lists. For AI agents content moderation, review analysis, social media monitoring. Accepts payment on Base or Solana — either network works.

SSL/TLS certificate inspection: issuer, subject, valid_from, valid_to, days_remaining, SAN list, fingerprint, signature algorithm. Detects expired and expiring certificates. Use ?domain=example.com and port=443, ssl certificate, tls certificate check, certificate expiry Accepts payment on Base or Solana — either network works.

Locus public pay-per-use API

Search academic papers across 240M+ publications via OpenAlex (free, no API key, no rate-limit issues). Returns papers with title, authors, abstract, year, citation count, DOI, PDF link. Use ?q=YOUR_QUERY and limit=10. Built for research agents and literature review workflows. Accepts payment on Base or Solana — either network works.

Normalizes safe x402 challenge metadata from multiple provider formats.

Live Platinum price (commodity futures, USD). Zero-param: GET returns current price. 铂金实时价格行情。プラチナ価格。Precio platino. 백금 시세. platinum price, platinum spot, commodity quote. Accepts payment on Base or Solana — either network works.

Records and compares hash-only x402, OpenAPI, and MCP operation stability facts.

Live Gold price (commodity futures, USD). Zero-param: GET returns current price. 黄金实时价格行情。金価格。Precio oro. 금 시세. gold price, gold spot, commodity quote. Accepts payment on Base or Solana — either network works.