Every agent-payable API.

Token price history and chart data for technical analysis. Returns time-series price points. (with AI analysis)

Tools — an agent-callable tools service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.002 USD per call.

Top gainers/losers analysis with volume, price change %, and market insights. (with AI analysis)

Transform text prompts into images or edit existing images using simple text prompts.

Trending TCG price movers — biggest daily gainers and losers across Pokemon, Magic: The Gathering, Yu-Gi-Oh, and Lorcana cards.

Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, description, price, and x402 endpoint. Each individual product is its own indexable x402 route. The catalog is the doorway.

Url Render — an agent-callable url render service, payable over x402 (USDC on Base). Provided via 2s.io. Priced around 0.006 USD per call.

US airport status from FAA: all airports currently with closures, ground stops, ground delays or arrival delays, with reasons and times. Official FAA NAS status data. 全美机场状态（FAA官方）：当前关闭、地面停飞、延误的机场及原因。米国空港運航状況。Estado de aeropuertos de EEUU. 미국 공항 운영 상태. Accepts payment on Base or Solana — either network works.

Decision-ready funding-arb SIGNAL for crypto perpetuals — cross-venue gross spread taken net of public round-trip taker fees, periods-to-breakeven, and depth-sized max notional at $1k/$5k/$10k, ranked. A derived outcome, not a profit forecast.

Validate invoice data: VAT number format, line item math, tax calculations, EU compliance requirements. SQS: 98/100.

Verified contract metadata by address and chain: contract name, compiler version, optimization, license, and proxy with implementation address, from a block explorer behind an API key. Does not return full source. contract source, verified contract, compiler version, proxy implementation, contract metadata

Monitor ONE x402 endpoint for 30 days and get alerted on changes that break agents: payTo changes (critical — possible takeover/rug), price changes, asset/network changes, 402-spec regressions, delisting, and liveness (down/recovered). Account-free: pay, receive a one-time secret + poll URL. Push to multiple signed HTTPS webhooks and/or Slack/Discord incoming webhooks (up to 5 each per watch). Every push URL is connection-tested before payment — unreachable URLs are rejected with no charge. Edit URLs or cancel early for free via bearer-authed PATCH/DELETE /v1/watch/{id}. Poll the append-only event log; nothing is lost between polls.

Get current weather and 7-day forecast for any location. Uses Open-Meteo API. Search by city name or coordinates.

Web3 Trader provides real-time cryptocurrency data aggregation and analysis, including token information lookup by contract address, comprehensive market data retrieval, price tracking with market metrics, and identification of top gaining/losing coins. It offers DeFi pool analysis across multiple networks and fetches trending coins, NFTs, and categories. Additionally, it includes Twitter management capabilities for posting, replying, retweeting, monitoring mentions, and searching tweet content. | Powered by Questflow

Web3 Trader provides real-time cryptocurrency data aggregation and analysis, including token information lookup by contract address, comprehensive market data retrieval, price tracking with market metrics, and identification of top gaining/losing coins. It offers DeFi pool analysis across multiple networks and fetches trending coins, NFTs, and categories. Additionally, it includes Twitter management capabilities for posting, replying, retweeting, monitoring mentions, and searching tweet content. | Powered by Questflow

Web3 Trader | Powered by Questflow

Web3 Trader | Powered by Questflow

Web3 Trader | Powered by Questflow

Web3 Trader | Powered by Questflow

Web3 Trader | Powered by Questflow

Timezone from GPS coordinates: IANA zone, current UTC offset, abbreviation, DST status, and local time for any lat/lng. Fast offline lookup (approximate near borders). Pairs with the IP-geolocation endpoint for analytics and scheduling agents.

IMAGE DESCRIPTION (vision AI) — POST {url} or {image_base64} and get back what is IN the image: a detailed description, notable objects, visible text transcribed, colors, and style. Or ask a specific {question} about the image ('what error is on this screen?'). PNG/JPEG/GIF/WebP up to 5 MB. For agents without eyes: alt text, screenshot triage, image search and moderation. Fast vision model; the x402 payment IS the auth.

TRANSLATION — POST {text, target} and get the translation plus the detected source language. Any language pair; target as a name or ISO code ('spanish', 'de', 'ja'). Up to 8,000 chars per call; line breaks and markdown preserved; code, URLs, and proper names left alone. Optional {source} to pin the source language, {formality}: formal|informal. Fast cheap LLM under the hood; the x402 payment IS the auth.

Icon generator: pick a Font Awesome Free icon (by search query or exact name) plus background color(s) and get an app-icon-ready asset — SVG source + PNG base64, default 1024x1024 opaque squircle (iOS-ready). Options: 1-2 background colors (2 = gradient), fg glyph color, shape (squircle/rounded/circle/square/transparent), size 64-1024, padding. Returns alternatives when resolved via search.

Logo generator: POST a company name (+ optional tagline), an icon (search query or exact Font Awesome name), 1-3 brand colors (hex or CSS names), a mark shape (squircle/rounded/circle/square/transparent) and a layout — icon above/below the name (square logo) or beside it (wide lockup) — and get a finished logo as SVG + PNG. Text set in one of six curated open-license fonts (named or randomly rotated), rendered as vector paths.

Whale-алерты: крупные переводы токена на Base за окно блоков (from/to/сумма/tx), с порогом

Paid x402 API for AI agents that checks MX records, SPF, DMARC, email security, phishing risk, domain mail configuration and anti-spoofing posture for a public domain.

Raw observation history for any publicly listed x402 endpoint: discovery snapshots (listed/delisted/relisted, price changes, payTo changes) and probe time-series (uptime, latency, quoted amount) over the requested window (1-90 days).

Trust score (0-100, grade A-F) for any x402 endpoint -- listed in our catalog or not. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address -- is anyone actually paying it, or is it just live? Computed deterministically from continuous monitoring: 30d probe uptime, 402-envelope spec compliance, latency, observed age, on-chain settlement activity, and advertised-price stability. Includes a full component breakdown, machine-readable flags, and an honest observedDays (we report only the history we actually have, with dataCompleteSince marking our gap-free on-chain coverage). Uncataloged endpoints are live-probed on your first query and auto-adopted into the monitored catalog (first-contact score with low confidence -- history accumulates from there). Know before you pay.

Your crypto alpha intelligence hub - tracks trending tokens, discovers new airdrops, and delivers real-time market insights with AI-powered video reports from top sources. | Powered by Questflow

Zoning district + overlays for an address. For 'what is the zoning', 'is this parcel being rezoned', 'zoning changes near an address', 'is nearby redevelopment changing this area'. Returns the official district/overlays from wired municipal/county layers. Zoning matters most as a CHANGE (rezonings, zoning bills) and vs NEIGHBORS; pair with development cases, legislation, capital projects, transfers. Not a buildability, variance, entitlement, or value ruling. Charge-free when out of coverage.

Parsed, taxonomy-classified SEC/EDGAR (US) announcements for one ticker (JSON). Identical schema across all supported markets.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Known peer addresses from the node's address manager. Bitcoin Core getnodeaddresses.

chainquery Bitcoin RPC: pay-per-call Bitcoin Core over x402, no API key. Estimated network hashes per second over a window of blocks, from chainquery's independent full node. Bitcoin Core getnetworkhashps.

Radar of the freshest Base token launches (newest DEX pools), lightly pre-screened by liquidity/age/flow with quickFlags for obvious junk. Top-of-funnel discovery for trading agents — feeds token-risk / momentum / best-swap. From GeckoTerminal.

new Aster | Powered by Questflow

new swarm | Powered by Questflow

notion-zm | Powered by Questflow

sentiment analysis, text sentiment, analyze sentiment, sentiment API, sentiment classifier, positive negative sentiment, emotion detection, mood detection, text emotion, opinion mining, sentiment score, text positivity, text negativity. Analyze sentiment of any English text. Returns score (positive minus negative), comparative score per token, positive and negative word lists. For AI agents content moderation, review analysis, social media monitoring, customer feedback.

Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Cheap boolean + magnitude signal for trading agents. POST a swap-rate graph, get back whether a profitable cycle exists and how large — without the path.

中文市场购物SERP：用中文关键词查Google购物，返回结构化商品（标题/价格/卖家/评分/链接）。hl=zh-CN+gl地区定向，覆盖中文电商真实商品与定价。China shopping SERP, Chinese product search, zh-CN localized listings for agents doing cross-border ecommerce, price research, product discovery in China market.

检测多个钱包在指定时间窗内共同买入(获取)同一代币的聪明钱共振 / FOMO 信号。传入你追踪的聪明钱地址列表,返回被其中至少 N 个地址在窗口内共同买入的代币,含买入地址与首次、最近买入时间。支持多链。Smart-money convergence FOMO signal: detect tokens acquired by multiple watched wallets within a time window. Pass your smart-money address list, get tokens bought by at least N of them with buyers and first or last buy time. Multi-chain on-chain aggregation.

规划行程，规划车票 | Powered by Questflow

Cid Bafkreie6t4rl5jij2vyxp4hp4gkpqexnklavf3p43zet23sj4b6eybuaca — an agent-callable cid bafkreie6t4rl5jij2vyxp4hp4gkpqexnklavf3p43zet23sj4b6eybuaca service, payable over x402 (USDC on Base). Provided via gateway.grapevine.fyi. Priced around 1 USD per call.

A collaborative swarm of AI agents dedicated to welcoming and onboarding new users to the Questflow platform. This swarm introduces key features, answers common questions, offers step-by-step guidance, and ensures a smooth, supportive, and engaging first-time experience. | Powered by Questflow

Paid x402 endpoint for multi-model AI voting and decision synthesis.

Access real-time and historical news feeds from the Gloria Data Platform | Powered by Questflow

Advanced Gas Tracker for Base — historical gas analysis with 1h/6h/24h averages, percentiles (P25/P50/P75/P95), min/max, trend detection (rising/falling/stable), and best time to transact prediction. Supports ?chain=base&hours=24&demo=true.

Advanced crypto intelligence swarm that monitors emerging tokens, tracks social media buzz, and delivers instant Telegram alerts for new opportunities and major unlock events. Your 24/7 crypto radar! 🚀 | Powered by Questflow

Paste-ready bid draft (0.01 USDC cheapest). Free radar first: GET /v0/sample-radar then POST {brief}.