the402 x402 endpoint directory

SHA-256 hex digest of text. Call when you need content fingerprints for agent cache keys. Returns hex digest for $0.00

Mask a digit string keeping last4. Call when you display agent-held card-shaped numbers safely. Returns masked and las

Luhn check for digit strings (cards/IDs). Call when you reject obviously invalid card-shaped numbers before payment UI

Detect private/loopback IPv4. Call when you block private egress targets in agent allowlists. Returns valid and privat

Validate UUID string shape. Call when you check correlation IDs before storage keys. Returns valid boolean for $0.001

Validate email shape (not mailbox existence). Call when you cheaply reject obvious non-emails before enrichment. Retur

Replace email-shaped tokens with a redaction marker. Call when you scrub emails from agent-held text before logging. R

Replace digits with # for safe previews. Call when you strip numeric PII from agent-held text before display. Returns

Percent-decode text. Call when you reverse query encoding from agent-held URLs. Returns decoded text for $0.001 USDC v

Strip HTML tags from caller-held markup. Call when you need plain text from agent-held HTML snippets without a browser

Extract basename from a URL or path-like string — first-party local utility for agent preflight and proven micro-utils

Join URL or filesystem-like path segments without traversal escape — first-party local utility for agent preflight and

Resolve an ENS name to its current Ethereum address or perform a reverse address lookup with forward-confirmation agai

Lists AI models on Bittensor, OpenAI compatible.

Stock ticker and company search API. Find US equity symbols by company name or ticker for trading, research, and auton

URL to Markdown API and converter for AI agents — convert any public HTTPS URL to clean Markdown, HTML-to-text, and LL

Random fortune — fixed price, x402 exact

Stock news headline API. Get the latest available market headline for a ticker symbol from a live data provider.

Stock quote API for AI agents — get a live/latest US equity price and volume reading for one ticker from the first ava

Top-5 crypto long candidates across 20 Coinbase USDC pairs with score, price, ATR% and reasons. AI-operated market int

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the r

Deterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base64 encode/decode, UUID genera

Extracts OG tags, canonical URL, title, and meta description from any web page. Useful for link previews, SEO audits,

Preview a GBLIN swap (buy ETH→GBLIN or sell GBLIN→ETH) with dynamic slippage and a MEV-safe minOut.

Paid hosted deterministic explanation for EVM/RPC/wallet/UserOperation/x402 errors. Send raw pasted error JSON, text,

UK vehicle CO2 emissions and engine data by registration plate.

Deterministic unit conversion reproducing NIST SP 811 exact factors (length, mass, volume, energy, power, pressure, fo

Quick pre-flight quality score: composite (0-100) + grade (A-F) + three framework sub-scores (PEEM, RAGAS, G-Eval) + v

Cross-venue funding spreads: Hyperliquid vs Bitget funding rate differences and suggested legs. Use for funding-spread

Polymarket odds search: prediction market questions and outcome prices for a query. Use when an agent needs prediction

Token price lookup: USD price, market cap, and volume by CoinGecko id or Base ERC20 contract address. Use for spot tok

Live wallet balance on Base: native ETH, USDC ERC20 balanceOf, and transaction nonce. Optional Ethereum mainnet balanc

Macro regime classification (risk-on/risk-off/neutral)

Ping - 0.001 USDC on Base

ForgeKit business-day add/count with holiday calendars

ForgeKit money allocate (largest remainder, exact sum)

ForgeKit ShipPack - robots/sitemap/llms/manifest for agents

Live-checks a domain: is it up, does it have TLS, what's the title? Quick domain health check for agents evaluating li

UK Energy Performance Certificate (EPC) ratings by postcode.

FetchWeb provides pay-per-call web metadata for AI agents. Use FetchWeb to quickly inspect a URL — title, description,

UK mortgage payment calculator: monthly payment, total interest, LTV, repayment or interest-only.

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

Current foreign-exchange rates from the European Central Bank for any base currency.

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).

Transaction receipt by hash on Base mainnet: status, gas used, full logs, L1 fee breakdown, l1_fee_usd/total_fee_usd.

ERC-20 token balance of a Base mainnet address, incl. symbol, decimals, balance_formatted.

Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd.

Top DeFi lending/LP yields — project, chain, symbol, pool id, APY breakdown + 1d/7d/30d APY trend, IL risk (incl. il7d

All WNBA teams with ID, city, abbreviation, and conference. Use team IDs to query schedules and standings.

Current USD/KRW foreign exchange rate