| 2s Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. "type 2 diabetes neuropathy"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents. |  2s.io | - | $0.0025 | listed |
| 8 Things That Tripped Me Up Implementing x402 8 Things That Tripped Me Up Implementing x402 |  paylog.dev | analytics | $0.01 | listed |
| A comprehensive Ethereum dashboard displaying real-time price, market data, supply, historical charts, and exchange activity with responsive design and visualizations. | Powered by Questflow A comprehensive Ethereum dashboard displaying real-time price, market data, supply, historical charts, and exchange activity with responsive design and visualizations. | Powered by Questflow |  dctx.link | data | $0.50 | listed |
| A set of Hello World UI blocks, from a minimal centered design to enhanced gradient, animation, and neon‑styled versions. Demonstrates modern UI patterns, visual flair, and interactive effects, useful A set of Hello World UI blocks, from a minimal centered design to enhanced gradient, animation, and neon‑styled versions. Demonstrates modern UI patterns, visual flair, and interactive effects, useful for showcasing design capabilities and marketing front‑end components. | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| A smart dashboard that identifies top cryptocurrency projects by category, automatically gathering market and social data, then delivering technical analysis, team background, and risk assessment for A smart dashboard that identifies top cryptocurrency projects by category, automatically gathering market and social data, then delivering technical analysis, team background, and risk assessment for the five most promising new projects. | Powered by Questflow | dctx.link | blockchain | $0.50 | listed |
| AABC Base Agent Report AABC Base Agent Report |  aabc.app | - | $0.01 | listed |
| AI Chat Completions API AI chat completions - 80+ models (GPT-4o, Claude, Gemini, DeepSeek), pay per token with USDC |  jarvisclaw.ai | - | $0.045 | listed |
| AI Decision Synthesis API Paid x402 endpoint for multi-model AI voting and decision synthesis. |  railway.app | ai | $0.05 | listed |
| AI Package Security Radar API AI-package security radar. Per-package risk_score (0-100) over the daily OSV snapshot of curated AI/ML PyPI + npm packages: critical_count_30d * 25 + high_30d * 12 + critical_90d * 6 + high_90d * 3 + min(open_count, 20) + 5 if any advisory in last 7d, saturated to 100. Risk_band classifications (calm <10 / watch 10-25 / hot 25-50 / critical 50+) plus notable_movers (top-5 by_critical_30d, by_risk_score, new_in_last_7d). The "which AI deps should I be worried about right now" call. |  tensorfeed.ai | - | $0.02 | listed |
| AI agent runtime with crypto payments on Solana blockchain AI agent runtime with crypto payments on Solana blockchain |  tropir.xyz | blockchain | $0.10 | listed |
| API call to jina-reader API call to jina-reader |  apiosk.com | - | $0.06 | listed |
| Access to The Little Secret Access to The Little Secret |  nittarab.dev | ai | $0.05 | listed |
| Access to protected content Access to protected content |  vercel.app | - | $0.001 | listed |
| Access to protected content Access to protected content | vercel.app | - | $0.001 | listed |
| Access to protected resource Access to protected resource |  aisa.one | - | $0.01 | listed |
| Access to protected resource Access to protected resource |  lnpay.ai | ai | $0.01 | listed |
| Access to protected resource Access to protected resource | lnpay.ai | ai | $0.01 | listed |
| Access to protected resource Access to protected resource | lnpay.ai | ai | $0.01 | listed |
| Access to protected resource Access to protected resource | aisa.one | - | $0.01 | listed |
| Access to safe data Mainsafe — an agent-callable mainsafe service, payable over x402 (USDC on Base). Provided via pay.lnpay.ai. Priced around 0.1 USD per call. | lnpay.ai | data | $0.10 | listed |
| Accumulation/distribution: кто накапливает и кто сливает токен на Base за окно блоков (net по адресам) Accumulation/distribution: кто накапливает и кто сливает токен на Base за окно блоков (net по адресам) |  pulsefeed.dev | - | $0.02 | listed |
| Add-on, the official ruler Add-on, the official ruler: the band and threshold ladder published by the source agency, its classification, and distance-to-action. NOT every line has an official ruler - pure market quotes do not. When it does not, you get 422 with no_charge:true and reason:no-ruler-for-this-line and you are NOT billed. Never a bag of nulls you paid for. Every record carries an offline-recomputable record_hash. |  zeabur.app | - | $0.005 | listed |
| Agent Hub service payment Agent Hub service payment |  clawmoney.ai | ai | $0.01 | listed |
| Agent Hub service payment Agent Hub service payment | clawmoney.ai | ai | $0.01 | listed |
| Agent Hub service payment Agent Hub service payment | clawmoney.ai | ai | $0.01 | listed |
| Agent Hub service payment Agent Hub service payment | clawmoney.ai | ai | $0.01 | listed |
| Agent Hub service payment Agent Hub service payment | clawmoney.ai | ai | $0.01 | listed |
| Agent Launch Audit Audit whether a site or API is ready for AI agents: discoverability, markdown access, OpenAPI, MCP, Agent Skills, x402 commerce, and concrete fix instructions. |  agentbodega.store | - | $0.03 | listed |
| Agent Paycheck Pre-payment risk and usefulness check for AI agents deciding whether to pay an x402 endpoint. |  onrender.com | - | $0.002 | listed |
| Agent Ready Pay-per-scan AI agent-readability scan. POST { "url": "https://…" } with an X-PAYMENT header to run a scan with no account or subscription. Two tiers: $0.02 (25 pages) and $0.25 (250 pages), USDC on Base. |  agent-ready.dev | - | $0.02 | listed |
| Agent Utilities Reverse-bounty need card (0.015 USDC). Free: GET /v0/sample-reverse-bounty then POST {need,valueUsd}. |  devvizion.com | - | $0.015 | listed |
| Agent Utilities storyboard: research topic in JSON body | devvizion.com | - | $0.02 | listed |
| Agent Utilities Multi-source open bounty radar ranked (0.015 USDC). Free 3-item: GET /v0/sample-radar then POST {limit}. | devvizion.com | - | $0.015 | listed |
| Agent Utilities Full PII/token/tenant scrub + report (0.03 USDC Base). Free dirty→clean demo: GET /v0/sample-scrub then POST {text|markdown}. | devvizion.com | - | $0.03 | listed |
| Agent Utilities Agent reputation snapshot (0.015 USDC). Free teaser: GET /v0/sample-rep then POST {wallet}. | devvizion.com | - | $0.015 | listed |
| Agent Utilities Research outline 0.01 USDC (first pay · Base). Ladder: free GET /v0/sample-outline.json → POST /v0/outline → brief 0.02. Machine settle: GET /first-buy.json · lander /start · /.well-known/x402. | devvizion.com | - | $0.01 | listed |
| Aggregated Crypto Market Verdict In One Call API Aggregated crypto market verdict in one call: fear-greed sentiment crossed with smart-money netflow regime (accumulation_on_fear, capitulation, confirmed_rally, late_stage_caution), trending coins checked against smart-money buying, BTC 24h move, high-conviction Polymarket positioning, plus all raw source data. |  suverse.io | - | $0.10 | listed |
| Aggregated X402 Ecosystem Stats API Aggregated x402 ecosystem stats — total services, volume estimates, growth metrics. EXCLUSIVE to httpay.xyz. |  httpay.xyz | ai | $0.05 | listed |
| Aggregated alpha signals for early opportunities (BSC only). (with AI analysis) Aggregated alpha signals for early opportunities (BSC only). (with AI analysis) |  emc2ai.io | ai | $0.75 | listed |
| Agriculture Drought Agriculture Drought — an agent-callable agriculture drought service, payable over x402 (USDC on Base). Provided via 2s.io. Priced around 0.001 USD per call. | 2s.io | - | $0.001 | listed |
| Agriculture Stats Agriculture Stats — an agent-callable agriculture stats service, payable over x402 (USDC on Base). Provided via 2s.io. Priced around 0.001 USD per call. | 2s.io | - | $0.001 | listed |
| Allium System of record for onchain finance. Real-time blockchain data: token prices, wallet balances, transactions, PnL, and SQL explorer. |  allium.so | blockchain | $0.022143 | listed |
| Alpha Vantage Inc API Alpha Vantage Inc. is a leading provider of free APIs for financial market data on stocks, forex (FX), and cryptocurrencies/digital currencies. | Powered by Questflow |  questflow.ai | blockchain | $0.10 | listed |
| AlphaPulse Top signal providers on MQL5, ZuluTrade, Signal Start and Myfxbook AutoTrade — ranked by verified performance. For trading agents sourcing entry and exit signals. |  theaslangroupllc.com | - | $0.10 | listed |
| Amazon Product Page Fetch API Amazon product page fetch — title, price and details as they appear, via managed retrieval that handles bot protection and JavaScript rendering. For price tracking, product research and ecommerce data. amazon, product page, price tracking, ecommerce data, product research, retail, asin Accepts payment on Base or Solana — either network works. |  x402node.dev | - | $0.02 | listed |
| An instructional module that showcases Hello World implementations in Python, JavaScript, and HTML/CSS, providing setup instructions, best practices, and interactive runnable code snippets for learner An instructional module that showcases Hello World implementations in Python, JavaScript, and HTML/CSS, providing setup instructions, best practices, and interactive runnable code snippets for learners to explore multiple programming languages. | Powered by Questflow | dctx.link | compute | $0.50 | listed |
| An interactive Flappy Bird style game block with a cute bird character, click or spacebar to flap, navigate through pipes, track scores, and display game over. Ideal for personal or demo projects show An interactive Flappy Bird style game block with a cute bird character, click or spacebar to flap, navigate through pipes, track scores, and display game over. Ideal for personal or demo projects showcasing simple game mechanics. | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| An interactive dashboard visualizing the 24‑hour trading volume of the top 10 cryptocurrencies. Features real‑time data refresh, line charts via Recharts, hover tooltips, responsive layout, and detail An interactive dashboard visualizing the 24‑hour trading volume of the top 10 cryptocurrencies. Features real‑time data refresh, line charts via Recharts, hover tooltips, responsive layout, and detailed data tables for comprehensive market analysis. | Powered by Questflow | dctx.link | blockchain | $0.50 | listed |
| Analyze Analyze — an agent-callable analyze service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.001 USD per call. |  klymax402.com | - | $0.001 | listed |
| Apple App Store Search & Reviews Apple App Store product details — full profile for a single app by product_id: rating, price, description, version history, screenshots & metadata as clean JSON. |  x402atlas.com | - | $0.02 | listed |