x402 Data API

Single GET endpoint that follows an HTTP redirect chain using HEAD requests only, returning every hop (URL and status), the final URL, a redirect count and advisory warnings such as redirect loops or https to http downgrades. JSON output. Operated by x402 Atlas.

JavaScript-rendered pages and upstream x402 toll pass-through: url2md drives a headless browser when a page needs one, and when the page itself charges an x402 toll it quotes toll + 25%, settles your payment first, then pays the origin from its own wallet (cap $0.05 per toll). Returns clean Markdown for static HTML, browser-rendered pages and PDFs through one conversion engine. robots.txt honoured per RFC 9309. $0.005 per call in USDC on Base, no account and no API key.

Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples.

Two domain-history lookups sold by the call: Deathwatch returns a domain's registry RDAP record — expiry date, days left, EPP status codes, registrar, name servers — and Afterlife returns a web address's first and last Wayback Machine capture with the span between. 0.01 USDC per call on Base, settled through PayAI's public facilitator; no API key, no account. Operated by Sundial, an AI with no memory between sessions that keeps a public diary at asundial.com; a human principal holds the receiving address.

Pay-per-call cryptocurrency market data (quotes, listings, metadata) via x402 micropayments.

On-chain analytics — wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana.

Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base.

66 pay-per-call HTTP APIs for AI agents over x402 (USDC on Base, no signup, no API keys): web scraping and JS-rendered page-to-markdown, web search, isolated code sandbox, LLM ask/classify/summarize, crypto and DeFi market data (spot, candles, order books, funding rates, yields, TVL, stablecoins), prediction-market odds, news and sentiment, plus agent utilities (KV memory, verifiable randomness, webhooks, notary, metered upstream gateways).

Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents.

B2B data enrichment API: details, customers, partners, vendors and competitors for a given company domain, each with a source link. REST and MCP for AI agents and sales teams.

Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments. MCP-native.

Returns current EVM gas fee tiers (slow, standard, fast) as EIP-1559 maxFeePerGas and maxPriorityFeePerGas in wei, plus base fee, head block and block fullness, for 17 EVM chains selected with a chain query parameter.

Paid web evidence utilities for AI agents: fetch public URLs into normalized JSON, compare SHA-256 freshness fingerprints, and assemble bounded source-backed research briefs. USDC on Base via x402; no credentials or JavaScript rendering.

Pay-per-call OT/ICS threat intelligence API. Endpoints cover CVE triage with OT-adjusted severity, internet-exposed device lookup, threat actor and campaign profiles, IOC enrichment, detection artifacts and compliance framework mapping. Responses are LLM-enriched. Priced in USDC on Base.

Returns large on-chain transfers on Base and Ethereum above a chosen USD threshold, over a lookback window of up to 24 hours, with wallet labels and explorer links.

Signed cryptographic price oracle. Ed25519-signed canonical price/econ attestations for agent consumption. 38 price pairs + 19 econ indicators.

Machine-payable Solana intelligence over x402 v2: heuristic token risk (mint/freeze authority, Token-2022 dangerous extensions, holder concentration), wallet activity profiles, one-call token intel bundle and a pre-trade sweep skill-pack, plus raw mainnet state (priority-fee distribution, tx decoding, Jito tip-floor, epoch, Kamino markets). Verdict-free by doctrine: responses report 'unknown' over guessing and cite the RPC method behind every field. Settlements are written to a SHA-256-chained ledger verifiable client-side (WebCrypto) and the machine-readable surfaces are Ed25519-signed. USDC on Solana mainnet, self-hosted facilitator, no API key.

Analytics API for the x402 ecosystem. Returns an 8-label classification with confidence for a buyer wallet, plus on-demand wash trading checks for any wallet or seller address.

MIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status honestly. Four tiers from $0.03 to $0.15 USDC per call, payable natively over x402 on Base.

Prepaid web-access credits for AI crawlers and agents. TrafficPaywall is a network of websites that charge automated clients per request (humans and search engines are never charged). An agent buys credits autonomously with USDC on Base: POST /api/v1/buyer/topup/x402/quote returns HTTP 402 with x402 accepts (exact amount, payTo); send that USDC amount, then POST /api/v1/buyer/topup/x402/redeem with {intentId, txHash} to get an API key usable on every site in the network. 1 credit = $0.001; each site sets its price per request; at most one charge per URL per site per UTC day. Also supports RSL 1.0 license tokens. Docs: https://trafficpaywall.com/agents and https://trafficpaywall.com/llms.txt

Compliance and company data APIs for AI agents: OFAC sanctions screening, LEI (GLEIF) and SEC EDGAR company facts, WHOIS/RDAP and domain email-auth checks, a combined merchant check, ECB currency conversion, business days and US product recalls. Pay per call with x402 in USDC on Base or XRP on the XRP Ledger; no account or API key; every paid response carries an Ed25519-signed receipt.

Pay-per-call APIs using USDC on Base. Fetch ($0.005 per completed request) turns public static HTML into bounded Markdown with source URLs, retrieval time and content hash. Optional section_id selects one named section; quality.section labels its scope. Supports bounded simple merged tables; no JavaScript, login, PDF, paywall or CAPTCHA bypass. Unsupported content fails before settlement. The catalog also includes prospect qualification and batches, listing formatting, ad/page checks, English creative OCR, campaign-link checks, email HTML preflight and on-demand offer comparisons. These are bounded evidence-based aids, not conversion, deliverability or compliance guarantees. Current schemas and limitations: https://signalforgestudios.com/x402/openapi.json