Every agent-payable API.

x402engine — OpenAI's latest small reasoning model — fast chain-of-thought for math, coding, and analysis

x402engine — Kwaipilot's stronger coding model for complex software engineering tasks

x402engine — Google's next-gen flash model — fast and efficient for everyday tasks with improved quality

x402Pulse Pro: a 30-day pass for $13 USDC that returns an API key for unlimited calls (fair use: 120 a minute, 20,000 a day) to every x402Pulse endpoint, plus an MCP server for Claude Code, Cursor and Claude Desktop. Pass ?renew=<key> to extend a key. The key is shown once.

x402serps: deep research — Google search, extract the top 3-8 pages in parallel, return a concise cited brief (extractive key sentences) plus source excerpts

x402serps: news digest — News for 1-5 topics, deduplicated, with top sources per topic and a compact text digest; optional since=hour|day|week|month

x402serps: cited answer — web search, read the top pages, and return a short answer with numbered citations (currently uses extractive summaries)

x402serps: AI/SEO visibility check — for 1-10 keywords, where a brand or domain ranks on Google, plus AI Overview, answer box, People Also Ask and knowledge graph presence, top competitors and a 0-100 score (flat price)

x402serps: fetch public http(s) URLs and return clean readable markdown text; one url or up to 20 urls in parallel, priced per URL (max 2MB page, 10s, output up to 100k chars)

x402serps: Image results (title, page url, imageUrl, thumbnail, size) for one query, up to 20

x402serps: Video results (title, url, channel, duration, date, thumbnail) for one query, up to 20

x402serps: real-time News results (title, url, snippet, source, date) for one query, 10 results per $0.004 (num up to 100), with freshness/date-range filters and pagination

x402serps: Scholar results (title, url, snippet, publication, year, citations, pdf) for one query, up to 20

x402serps: Shopping product results (title, price, store, rating, url, image) for one query, up to 20

x402serps: Maps/places results (name, address, rating, phone, website, lat/lng) for one query, up to 20

x402serps: map a website — discover up to 1000 URLs on a domain from robots.txt sitemaps and on-page links (flat price)

x402serps: crawl a website — breadth-first from a start URL on the same host, returning clean markdown for up to 50 pages; priced per page of the requested limit

x402serps: real-time Google web search results (title, url, snippet) for AI agents, one query, up to 20 results

x402serps: Web search plus clean extracted markdown of the top N results (default 3, max 5) in one call

Ask the XH Agents AI Trading Assistant a market question

Ask the XH Agents knowledge base (15 field notes on infrastructure, x402 and agent tooling)

Scrape XING jobs in Germany, Austria and Switzerland by keyword and city: company, location, employment type, XING salary estimate, description, career level, discipline, industry, remote option, apply link, company size. No login. One search per call (result caps in the input schema); failed lookups are not charged.

XML to JSON converter. Convert an XML document to JSON: attributes become "@name" keys, text becomes "#text" (or the value itself when an element only holds text), and repeated child elements become arrays. DOCTYPEs and external entities are refused, so nothing outside the document is ever loaded. Up to 100,000 characters. Use to read XML feeds, SOAP responses and config files in an agent.

XR-Flows on-ledger whale flow around each XRP ETF launch date

XR-Flows cross-border XRPL settlement by country pair

XR-Flows daily XRP ETF flow summary: per-fund AUM change, momentum, share of supply

XR-Flows XRP fund filings and candidates not yet tracked

XR-Flows rolling correlation of XRP ETF AUM against on-ledger exchange flows

XR-Flows per-ETF deep dive

XR-Ledger account statement for an XRPL address

XRPL-Utilities fund flow report: are XRP funds growing, and does the ledger agree. Fund assets and their change, XRP held by funds, net XRP flow on and off exchanges and how the two line up, in one answer.

XRPL-Utilities XRP market briefing: market posture, whale count, exchange net flow, entity positioning, escrow calendar, XRP fund holdings and on-ledger sell impact in one answer.

XRPL-Utilities RWA token report: is a tokenized asset on the XRP Ledger growing, and who holds it. Supply and holder trend, 30-day supply changes, AMM pools, permissioned-domain role and a 90-day statement of the issuer wallet in one answer.

XRPL-Utilities wallet check: who an XRPL wallet is and what it has been doing. Activity classification, domain check, 90-day statement, Pulse events and permissioned-domain role in one answer.

XRPL-Utilities XRP Ledger network snapshot: how big and how busy the ledger is. Accounts, daily activity, ledger object counts, XRP supply, payment volume and on-ledger sell impact in one answer.

XRPL-Utilities permissioned venue report: who runs an XRPL permissioned domain (XLS-80) and is it active. Operator profile, credentials, attribution and the last 24 hours of activity in one answer.

XR-Pulse events referencing one XRPL address

XR-Pulse wallets receiving from several watched sources

XR-Pulse Moscow Exchange XRP index, latest and daily history

XR-Pulse hourly whale and institutional USD flow, last 24 hours

XR-Pulse accumulation or distribution per exchange, treasury and market maker

XR-Pulse XRP whale count: accounts holding 1M+ XRP, bands, holder types, history

XR-Pulse anonymized Ripple counterparty and relay-burst findings

XR-Pulse Ripple escrow release calendar with held, re-locked and paid-out XRP

XR-Pulse ledger-wide object counts and XRP supply breakdown

XR-Pulse daily whale and institutional USD flow history

XR-Pulse payment chains traced back from named exchanges

XR-Pulse desk briefing: posture, positioning, RLUSD health, supply pressure, RWA

XR-Pulse every tracked RWA issuer: supply, holders, 24h mint and burn, AMM exposure

XR-Pulse net flow per named exchange with trend