the402 x402 endpoint directory

Validates JSON against a schema and fixes common LLM output mistakes.

Validates and parses phone numbers in E.164 format.

Parse any CSS color (hex, rgb(), hsl()) and emit all three formats plus relative luminance. Compute WCAG contrast rati

Lists every network Yield.xyz supports.

Returns live DeFi yield balances for a wallet.

USD price for major tokens by symbol or any Base ERC-20 by contract address, with source failover.

Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or h

Check ETH and USDC (or any ERC-20) balance of an address on Base — pre-flight funding checks for payments and settleme

Returns the US EPA Air Quality Index and pollution levels for a location.

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with

Email deliverability verification

Soneium RPC (chain 1868): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account

XLayer RPC (chain 196): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account o

Robinhood Chain RPC (chain 4663): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no

Zircuit RPC (chain 48900): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no accoun

Polygon PoS RPC (chain 137): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no acco

Sonic RPC (chain 146): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or

Unichain RPC (chain 130): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account

Avalanche C-Chain RPC (chain 43114): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC,

HyperEVM RPC (chain 999): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account

Optimism RPC (chain 10): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account

Arbitrum One RPC (chain 42161): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no a

BNB Chain RPC (chain 56): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account

Mode RPC (chain 34443): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account o

Ink RPC (chain 57073): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or

BOB RPC (chain 60808): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or

Dataset metadata for this Japanese (JP) corporate-number API — how many corporations are loaded and which prefectures

Real-time GBLIN protocol state: NAV in USD, basket composition with dynamic weights, and Crash Shield status.

Returns an hourly weather forecast for any location.

x402 settlement test

Returns a liveness check plus a payment pipeline test.

Geolocates an IP address to country, region, city, coordinates, and timezone.

Returns the freshness of sanctions list data for Japan MOF and OFAC.

Echoes back the JSON body you send, with a server timestamp. Useful for verifying your x402 client integration end to

Search DEX pools across Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism and Avalanche by token symbol, name,

Recent news relevant to prediction markets within a publish-date window.

NattSwap cross-chain swap quote (Li.Fi)

GBLIN protocol governance state: owner, the 48h timelock delay that every owner-only change must pass through, and any

Real-time weather data and 3-day forecast for any location worldwide. Accepts city name or lat/lon coordinates. Return

Reloadpi — List all available voucher brands including Amazon, Google Play, Netflix and more

Web scraping / URL fetch: retrieve any web page and return clean, LLM-ready markdown text. Strips boilerplate, ads, an

Complete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns nam

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in

The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, G

Search x402 service registry — broad q search plus health, score, category, tag, and tags filters

Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 char

Resolves postal codes for about 60 countries.

Base coin price mini-endpoint for major tokens only. Returns spot prices and 24h stats for well-known tickers like btc

Domain age and registration intel from authoritative RDAP/WHOIS records: exact creation date, age in days and years, e

Search Polymarket prediction markets by free text: elections, Fed rates, crypto prices, sports, geopolitics, AI. Retur