the402 x402 endpoint directory

HyperNatt Forced-order / liquidation map (BTC ETH SOL BNB XRP HYPE ZEC; omit = BTC) — magnet, OI, L/S, clusters, real

Real-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and

USD token price (POST wrapper, body: {symbol} or {chain, contract}) — $0.001 USDC

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

Discover the Bitrefill x402 storefront: supported networks, the full route flow, and wallet persistence rules.

Repair malformed JSON text into valid parsed JSON: markdown code fences, single quotes, smart quotes, unquoted keys, t

Cheap preflight checks if a URL can be fetched by Minifetch's user agent before making requests to the other paid Mini

Resolve DNS records using DNS-over-HTTPS and return structured JSON for infrastructure, security, and agent workflows.

Real-time gas price oracle for multiple EVM chains. Returns slow/standard/fast fee estimates, estimated transaction co

Exact math for agents — the arithmetic LLMs get plausibly wrong. Evaluates an expression at 50-significant-digit preci

DNS Lookup API. Resolve domain DNS records and receive structured JSON with A, AAAA, MX, NS, TXT, CAA, and SOA records

List every network Yield.xyz supports (80+) with its id (slug), name, and category (EVM, Cosmos, Substrate, misc). Fil

AgentWire service card for webhook inbox relay and web fetch infrastructure.

Stablecoin market data ranked by USD-equivalent circulating supply: each coin returns its symbol, peg type and mechani

Registration data for any domain, straight from authoritative RDAP registries (the structured WHOIS successor): regist

Test endpoint for verifying x402 payment integration end to end. Returns a static greeting in the Agent Tollbooth stan

Structured decode of any mainnet tx (base | ethereum | solana) — $0.001 USDC

BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy

Validate and parse phone numbers in international E.164 form: extract the country calling code and region, the nationa

Get a Firebase ID token for authenticating with the callable APIs

Real-time cryptocurrency prices for BTC, ETH, SOL, and other major coins. Data sourced from CoinGecko. Returns current

Crypto prediction markets on Polymarket: the highest-volume open BTC, ETH and crypto markets with live odds (outcome p

Resolve Basenames (.base.eth) to wallet addresses on Base.

HTTP Latency Check API. Measure HTTP response latency for a URL from the Cloudflare Worker edge. Returns status code,

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

Get live DeFi yield balances and pending actions for any wallet — active staking, lending, vault, and RWA positions wi

AI-filtered crypto news and Twitter search for non-token topics (airdrops, DeFi trends, etc). Max 2 words.

Paid x402 API for AI agents that checks MX records, SPF, DMARC, email security, phishing risk, domain mail configurati

Highest-yield DeFi pools across every chain and protocol, filterable by chain, project, or asset symbol: each pool ret

Validate a JSON value against a JSON Schema and coerce common LLM-output mistakes (numbers as strings, stringified boo

Multi-chain portfolio snapshot with token balances and yield positions for a user's Otto AI Safe accounts across Base,

Live DEX token price in USD by ticker symbol or contract address across Base, Ethereum, Solana, Polygon, BSC, Arbitrum

Ethereum RPC (chain 1): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account o

Compute cryptographic digests and HMACs deterministically: MD5, SHA-1, SHA-256, SHA-384, SHA-512, output as hex, base6

Top Polymarket prediction markets RIGHT NOW: the 25 highest-volume open markets with live odds (outcome probabilities)

Parse any freeform datetime string into a structured normalized form — $0.001 USDC

Word, sentence, and paragraph counts, reading time, and readability score for text.

Decode a JWT header and payload (signature not verified).

Determine whether a Base address is a contract or an externally-owned account.

Check an ERC-20 spending allowance on Base; flags unlimited approvals.

ERC-20 name, symbol, decimals, and total supply for a token on Base.

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

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

BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilit

Generate UUIDs. ?version=4 (default, random) or 7 (time-ordered), ?count=1..100.

Build unsigned transactions to exit a DeFi yield position — unstake, withdraw from lending or vaults, or redeem RWAs —

Get full metadata for a single DeFi yield: current APY, TVL, fees, minimum/maximum entry, lock-up/cooldown/warm-up per

Search the Coinbase x402 Bazaar for paid resources by natural-language query.

IP geolocation: country, region, city, coordinates, and timezone for any IPv4 or IPv6 address. Fast in-memory lookup f

Archive coverage for a coin's liquidations over a window (≤7 days): which archived hours hold liquidations and where t