41 Services from x402-checker.nock-for-mak.workers.dev

Fetches a Wikipedia article summary or search results by query or page title, returning the extract, description, and attribution metadata

Screens an EVM or Solana cryptocurrency address against the OFAC SDN (Specially Designated Nationals) list and returns a CLEAR or HIT verdict

Checks up to 10 URLs in one call to detect x402 payment-gating, extract payment details, and surface risk flags before any USDC is spent.

Fetches a comprehensive x402 payment honesty report for a target URL, revealing payTo address, network, amount, risk flags, bytecode analysis, and OFAC/facilitator metadata — all without sending any payment headers to the target.

Converts a specified amount from one ISO-4217 currency to one or more target currencies using ECB reference rates via Frankfurter

Returns the current local time, UTC offset, DST status, and abbreviation for any IANA timezone name

Returns current gas price data for the Base blockchain network including base fee, priority fee, and suggested max fee in Gwei.

Checks a token contract address for honeypot risk, buy/sell taxes, and liquidity data using honeypot.is and DexScreener data sources.

Searches Hacker News stories, comments, jobs, and polls via Algolia and returns ranked results for a given query

Returns the current or historical Crypto Fear & Greed Index value, classification, and timestamp sourced from alternative.me

Searches or retrieves GitHub repository and user metadata (stars, description, language, last updated) via a pay-per-call x402 endpoint.

Looks up an EVM address on Base (eip155:8453) via public RPC, returning isContract status, ETH balance, USDC balance, and transaction count

Fetches Base blockchain block data (number, transaction count, network info) by block tag, number, or hash

Parses a Unix crontab expression and returns the next N fire times in both UTC and a specified local timezone

Forward and reverse geocoding: convert a place name to lat/lon coordinates, or convert lat/lon to a place name

Registers an ENS-style agent name (30-day TTL) linked to an x402-capable origin URL for $0.05 USDC on Base

Resolves a 4-byte EVM function selector (or calldata prefix) to its human-readable ABI signature using the Openchain database

Fetches live prediction market data from Polymarket by keyword search or exact slug, returning market questions, odds, and 24h volume

Validates an email address by checking syntax and MX records via DNS-over-HTTPS, returning validity, reason, and MX host list

Looks up metadata for an ERC-20 token contract on Base by its contract address, returning name, symbol, decimals, and contract status.

Searches the NIST NVD CVE database by CVE ID or keyword, returning vulnerability details including severity, CVSS score, CWEs, and summary

Looks up a transaction on the Base blockchain by hash and returns its status, chain, and network details.

Looks up DEX trading pairs and token price/liquidity data by token contract address or search query, powered by DexScreener

Returns a comprehensive DNS, RDAP registration, and TLS certificate dossier for a given public hostname

Returns current weather conditions for a place by name or coordinates, sourced from Open-Meteo, in metric or US units.

Retrieves TLS certificate facts from public Certificate Transparency logs (crt.sh) and performs a live HTTPS HEAD check for a given hostname

Fetches a public URL and returns its HTTP response status code and response headers, without sending any payment headers.

Returns current USD prices for up to 8 cryptocurrency symbols or Base ERC-20 tokens, sourced from DefiLlama/CoinGecko, paid via x402 micropayment.

Search arXiv preprints by keyword, category, or paper ID and return structured metadata for up to 8 results

Validates a JSON data instance against a provided JSON Schema, returning validity status and any errors

Returns whether a given date (or date range) is a US federal business day, including holiday name, next business day, and timezone-aware weekend labeling, for 2025–2027.

Returns real-time or delayed price, change, and metadata for equities, indices, FX pairs, and crypto via Yahoo Finance — paid at $0.01 USDC per call over x402.

Resolves an ENS or Basename (.eth, .base.eth) name to its on-chain Ethereum address via public HTTP lookup

Follows and returns the full HTTP redirect chain for a given URL, revealing each hop's status code, location header, and content type up to the final destination.

Fetches a public URL and returns its content converted to Markdown, along with HTTP metadata

Searches Stack Overflow for questions and answers matching a query or question ID, returning ranked results via the Stack Exchange API.

Returns the current UTC timestamp in multiple formats (milliseconds, ISO 8601, Unix epoch) along with operator and timezone metadata.

Returns a summarized recap of recent public crypto headlines from CoinDesk, The Block, Decrypt, and Base Blog, optionally filtered by topic.

Searches the x402-checker platform's catalog of free and paid tools by keyword, returning ranked matching endpoints with their URLs, methods, and prices.

Submit a $0.05 USDC bid to boost a URL's ranking on the x402 Checker leaderboard for 24 hours

Returns the current UTC timestamp in multiple formats (milliseconds, ISO 8601, Unix epoch) along with operator metadata.