the402 x402 endpoint directory

Parse and validate any phone number in any format, identify its country and line type (mobile/landline/VOIP/toll-free/

Fetch a URL and detect the full technology stack from HTTP response headers, HTML meta tags, cookies, and script patte

Check an IP address against 15 major DNS blacklists (Spamhaus, Barracuda, SORBS, etc.) simultaneously — returns which

Turn unstructured text into structured JSON matching a caller-supplied schema using Claude Haiku — the agent declares

Conform messy or inconsistent JSON to a target schema using Claude Haiku — renames keys, coerces types (string→number,

Extract named entities from text using Claude Haiku — people, organizations, locations, dates, emails, URLs, money amo

Coin Days Destroyed (CDD) — Coin Days Destroyed (CDD) measures the volume-weighted age of coins spent on a given day.

One-call on-chain analytics digest: biggest protocol TVL shifts (with $ amounts), trending tokens, and a recent-exploi

Turn written text into spoken audio you can drop straight into a player or app. Send text (up to 4,000 characters) wit

Munition Flight Search: x402-paid live flight offer search for AI agents. Pay 0.05 USDC to search Duffel flight offers

Independent audit of an agent's actual token spend against its budget and declared task scope — surfaces cost overruns

Per-call retrieval of recent SEC EDGAR filings (10-K/10-Q/8-K) for a ticker or CIK, with a tamper-evident BlindOracle

Risk-scored investment plays with concrete entry/exit strategies, spanning DeFi yield positions to spot buys — each pl

A single-use cryptographic seal proving a specific deliverable was produced by a specific agent at a specific time and

Clear explanation of what code does, how it works, and why.

Agents choose between tokens, not around them. Pass 2-5 Base token addresses → each gets a 0-100 quality score (safety

The live layer over B20 Policy Watch: a network-wide onchain webhook captures every B20 PolicyUpdated/Paused sub-secon

The zoom-out flagship: aggregates trending and newly-listed Base tokens, then Claude writes a concise market brief — m

🆕 Given a paymaster address, audits whether it's a healthy, active gas sponsor. Reads its UserOperationEvents across

🆕 b20-freeze-check answers one wallet; this enumerates the WHOLE list. Replays the Policy Registry's BlocklistUpdated

🆕 The B20 misconfiguration lint. Base's docs warn: a scope bound to a NON-EXISTENT allowlist silently denies EVERYONE

Global crypto market overview: total market cap (USD/KRW), BTC dominance, Korean market volume, and top 5 movers (up/d

Kairostamp evidence snapshot: server-side fetch of one public http/https URL, returning a time-stamped receipt with th

VN30 proxy — VFMVN30 ETF tracking Vietnam's top 30 HOSE blue-chip stocks, delayed quote

Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free sourc

LinkedIn job search results page

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand market microstructure and risk metrics f

ICS detection artifact retrieval. Pass ?target=PIPEDREAM or ?target=SANDWORM&format=sigma. Returns YARA/Sigma rules fo

DripMetricsAI (https://dripmetrics.ai/) provides on-demand BTC option-derived metrics that combine the Deribit option

Kronos by ForgeMesh crypto market preflight for one symbol. Returns an allowed flag, market and risk state, cooldown s

DripMetricsAI (https://dripmetrics.ai/) provides on-demand order-book microstructure metrics computed fresh per reques

A verified, machine-readable table of current LLM API pricing (input/output per MTok, cached-input where published) an

Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you r

Buy Hoodi ETH with Base or Solana USDC at $0.025 per testnet ETH

Buy Sepolia ETH with Base or Solana USDC at $0.05 per testnet ETH

Real-time crypto & macro market data for AI agents, pay-per-call in USDC (no account or API key): Bitcoin (BTC) and Et

Payment required. Send a valid JSON body. After HTTP 402, read payment-required, authorize the stated USDC payment on

Verifica se uma página web pública cumpre condições concretas e devolve uma decisão com evidência.

Esports match schedule for esports and esports-betting agents. Returns today's matches with team context and storyline

Ranks a wallet's active token approvals by USD-at-risk x unlimited-allowance x unlabelled-spender, and returns a prior

UTXO Realized Price Distribution (URPD): ATH-Partitioned — A histogram of Bitcoin supply by the price bucket in which

Futures Perpetual Funding Rate — The average funding rate (in %) set by exchanges for perpetual futures contracts. Dat

Number of Active Addresses — The number of unique addresses active in the network as a sender or receiver. Data by Gla

BatchRail discovery/trial: classify up to 100 short items for $0.05. Full 1,000-item bulk route is /api/batch/classify

Focus survey: median market forecasts for inflation, the Selic rate, the exchange rate and GDP growth, for the current

Base address -> agent-ready on-chain profile: EOA or contract, ETH and major-token holdings, token or NFT metadata, EI

Assess missed-connection risk from itinerary times, caller-supplied minimum connection time, and live airport conditio

Estimate the monthly cost DELTA of an infrastructure change before you apply it: pass a Terraform plan (its resource c

Non-custodial yield deposit/redeem calldata for Base: give protocol (aave-v3, compound-v3 or erc4626), asset or vault,

Non-custodial swap calldata for Base: give tokenIn, tokenOut, raw amountIn, slippage and recipient; we read Aerodrome