the402 x402 endpoint directory

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

List past and pending actions for a wallet across all yields — filter by status, intent, type, yield, or network. Answ

Cross-chain name resolver (POST wrapper, body: {name}) — $0.001 USDC

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

Check an invoice status and, with SIWX from the paying wallet, retrieve redemption codes.

Decode raw EVM calldata into function + typed params via openchain.xyz — $0.001 USDC

JSON Schema Validator API. Validate JSON data against a JSON Schema and receive structured valid/invalid results with

DeFi Total Value Locked (TVL) by blockchain or by protocol. Default returns the top chains ranked by TVL in USD; pass

Deep dive on any DeFi protocol by its DefiLlama slug (aave-v3, lido, uniswap…): current Total Value Locked, market cap

DeFi protocol fees and revenue ranked: which protocols actually earn money (not just hold TVL). Each returns 24-hour a

Decentralized exchange (DEX) trading volume ranked by protocol: 24-hour and 7-day volume in USD with 1d/7d change, plu

Build unsigned transactions for pending actions on an existing DeFi position — claim rewards, restake, unlock, or comp

Get the on-chain status of a single transaction by its Yield.xyz transaction ID — poll after broadcasting to confirm i

Get the status and transactions of a specific action by its ID (returned by actions_enter/exit/manage). Poll this to t

Check whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status

List validators for delegation-based yields (Cosmos, Polkadot, ETH native staking, etc.). Use a validator address with

Historical APY / reward-rate for a yield over time — plot APY trends or compute average yield across 1d/7d/30d/90d/1y

Historical total-value-locked (TVL) for a yield over time — track inflows/outflows and protocol growth across 1d/7d/30

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

Head/meta SEO audit: title and description with truncation-length warnings, robots meta (flags NOINDEX), canonical sta

Alt-text audit for any page: finds images with missing alt attributes, flags filename-as-alt and generic alt text, ove

WCAG contrast ratio between two colors — the check the URL-based a11y endpoint can't do. Give a foreground and backgro

Social share / OpenGraph checker: extracts og:*, twitter:*, title, description, canonical and robots meta from any URL

Base-chain ecosystem news, AI-filtered hourly from Otto's live news engine: protocol launches and upgrades on Base, Co

robots.txt + llms.txt checker: crawler access verdicts for major search AND AI bots (Googlebot, Bingbot, GPTBot, Claud

Token security scanner — is this token safe to buy? Honeypot, rug-pull, and scam detection for any token contract — fl

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

AGENT DATASTORE — list your wallet's collections: names, row counts, created dates, plus total rows and storage bytes

Web search returning URLs, titles, and descriptions

Convert between epoch (s or ms), ISO 8601, and any IANA timezone. Give a value, get every representation back.

Look up all x402 Bazaar resources listed under a merchant payTo wallet.

Which protocols earn the most — and who is accelerating? Top 30 DeFi protocols by 24h fees, each with revenue, take-ra

Is USDC/USDT/DAI holding its $1 peg, and is stablecoin supply growing or shrinking (risk-on vs risk-off)? Live peg dev

Directory of Japanese (JP) rail operators and their lines, with canonical ids and Japanese/English names. Use to disco

List every JMA forecast office (府県予報区) in Japan with its code, Japanese/English name, and class10 sub-regions. Use thi

GBLIN protocol governance state: owner, 48h immutable timelock parameters, and any pending operation.

Base X profile mini-endpoint. Fetches a full X profile and the 10 most recent tweets for a given handle, returning the

Compact line-level diff between two texts.

Base64 encode or decode a string.

Bank of England base rate history with current rate and time series.

Real-time at-risk DeFi borrowers across Aave V3, Morpho, Comet, Euler V2, Fluid, Moonwell, Spark on 11 EVM chains. Ret

Latest aggregated price for one or more Pyth feeds, sourced live from Pyth's Hermes service. Use when you need an ORAC

Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week - optionally rendered in any IANA timezone via ?tz

Fund any address with testnet money via the Coinbase faucet - USDC (1) or ETH (0.0001) on Base Sepolia, USDC (1) or SO

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

Fresh, deduplicated market-moving news and catalyst context across equities, crypto, macro, and forex for AI trading a

Current U.S. EPA Air Quality Index (AQI) and pollution levels for a specific location, given latitude/longitude — use

Latest PulseChain block number and timestamp.

Crypto fear & greed index (current + previous reading). JSON.