the402 x402 endpoint directory

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

Live registry of tokenized US equities & ETFs on Robinhood Chain (4663): symbol, pin-verified token address, decimals,

Fetch any public web page and return clean, readable Markdown with navigation, ads, and boilerplate stripped. For agen

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

Returns title, URL, and snippet results from a DuckDuckGo web search.

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

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

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

Returns cryptographically secure random bytes or a random integer in a range. Useful for an agent that needs unpredict

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

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each respon

Returns a JSON echo and pays a small fee, a reference x402 implementation.

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each respon

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each respon

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

ATMS x402 challenge — crawler / probe endpoint (always 402, no side effects)

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

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

Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Chea

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

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

Current total U.S. national debt outstanding — how much the U.S. government owes right now — from the Treasury's 'Debt

Returns live Morpho fixed-rate lending books on Base.

Every listed Morpho (MetaMorpho ERC-4626) vault on Base: address, underlying asset (address/symbol/decimals), live net

Resolves DNS records via DNS-over-HTTPS and returns structured JSON.

Latest PulseChain block number and timestamp.

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

Prompt-driven single-image edit on Venice models — send an image plus an instruction and get the edited result, paid p

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

Speech-to-text transcription on Venice models (Parakeet, Whisper, Wizper, Scribe, xAI STT), paid per request in USDC o

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

Evaluates an arithmetic expression with exact math.

Compose or edit using 1-3 input images on Venice models — merge subjects, transfer style, or blend scenes, paid per re

Computes a cryptographic hash of a text string with sha256, sha512, sha1, or md5. Useful for checksums and integrity c

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

Venice Responses API (alpha) — OpenAI-compatible structured agent outputs with typed blocks (reasoning, message, tool

Voice cloning on Venice — returns a JSON voice ID ({ id, model }), NOT audio. Upload a reference sample to mint a reus

Scans recent block gas details to estimate the minimum, average, and maximum base fee.

Base gas price — current wei/gwei. Cheap read-only chain primitive. Pay-per-call via x402.

USDC balance of any address on Base — the x402 settlement asset (atomic + USDC). Pay-per-call via x402.

Web search returning URLs, titles, and descriptions

EXPERIMENTAL / WIP- an early, unproven BUY/SELL signal feed (no established out-of-sample edge, not advice); corrobora

Live prices from TWO labeled venues per symbol: Coinbase exchange spot (+ 24h stats) AND the gTrade venue leg { gains:

Returns near-Earth asteroids making their closest approach on a date.

Returns NOAA tide data for US coastal locations.

Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime pr

Generates UUIDs, either random or time ordered. Useful for an agent that needs stable identifiers.

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

Current average U.S. retail price of electricity, in cents per kilowatt-hour (cents/kWh) — e.g. "what's the electricit

Cryptographically-secure random integers in a chosen range (CSPRNG, rejection-sampled to avoid modulo bias) — real ent