| Bulk Web Search Bulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out. | kadec0.xyz | - | $0.10 | listed |
| Business API U.S. County Business Patterns — number of businesses, employees, and payroll by industry (NAICS) and state. | memoryapi.org | - | $0.001 | listed |
| Business days Count business days (Mon–Fri) between two dates, inclusive of the start, exclusive of the end. Optional list of holiday dates to skip. | agent402.tools | - | $0.001 | listed |
| CIDR calculator Parse an IPv4 CIDR block: network address, broadcast, first/last host, netmask, and host count. Optionally test if an IP is inside it. | agent402.tools | - | $0.001 | listed |
| CRYPTYX Multi-factor z-score confluence backtest for one asset (2-4 conditions). Intersects triggered days, returns per-metric series, composite triggers, and per-horizon forward-return/drawdown stats. Validate confluence stacks before live deployment. | cryptyx.ai | - | $0.05 | listed |
| CRYPTYX Factor term-structure grid — 7 classes by 8 horizons of market-average t-score with breadth counts and 1-day momentum delta. Per-asset mode adds delta-vs-market per cell. Read rotation in one matrix. | cryptyx.ai | - | $0.05 | listed |
| CRYPTYX Daily OHLCV bars for one asset over 1-1825 days — open, high, low, close, USD volume. UTC-1 anchor day. The grounded spot tape behind every CRYPTYX factor score and signal. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Per-asset agent grounding bundle — profile (composite score, ranks, returns, volatility, Sharpe), an 8×8 factor cube (t-score percentile and band), regime, and raw order-book liquidity. Single aligned snapshot. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Service health probe — build version, last pipeline run, current signal/composite/asset counts. Sub-second, no DB writes. The cheapest end-to-end pay-per-call check before issuing real queries. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Per-asset macro regime context — current regime id, confidence, days-in-regime streak, conditional forward-return stats at 1d/7d/14d/30d, and top historical regime transitions. Grounds sizing in what historically happens next. | cryptyx.ai | - | $0.05 | listed |
| CRYPTYX Factor t-score breakdown for one (asset, day) — per-class scores across the 8 factor classes plus the weighted composite. Inspect which factor classes drove the call. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Universe-aggregate cross-factor divergence alerts — Ignition (TR+VOL extreme), Capitulation (FLOW+TR collapse), and Distribution (outflows with trend). Severity-ranked by horizon for top-down scanning. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Multi-horizon macro regime synthesis from 1d through 365d — regime label, confidence, cross-class state, breadth, horizon alignment. Read full risk-on/off posture in one call. Slim mode drops blobs for timelines. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Signal activity leaderboard over 7-365 days — per-signal trigger frequency, average confidence, assets triggered, and a per-horizon walk-forward IC/reliability block. Frequency and robustness in one pass. | cryptyx.ai | - | $0.01 | listed |
| CRYPTYX Re-rank 200+ assets under your own 8-class composite weights at 7d/14d/30d. Returns full ranking with class contributions, default-weight comparison, and top movers vs default. Stress-test your composite recipe against the production moat. | cryptyx.ai | - | $0.25 | listed |
| CRYPTYX Natural-language entry point to the full CRYPTYX stack. POST a query string; an LLM classifies into 60+ intents (conviction_ranking, market_brief, factor_breakdown, signal_explain, regime_check, top_setups, etc.) and routes to the matching pre-computed analytics over 200+ assets, 152 signals, 440+ metrics. Response payload is intent-shaped — a top-3 conviction query returns a compact ranking; a market_brief returns a full universe snapshot. Wire an LLM agent into CRYPTYX without plumbing 30+ endpoints. | cryptyx.ai | - | $0.25 | listed |
| CRYPTYX Fork a signal into an inactive parameter variant — production firing is untouched. Experimentation primitive: fork, dryrun-backtest, then activate. Returns the new version id and parameters. | cryptyx.ai | - | $0.05 | listed |
| CSV lint Validate CSV structure: consistent column counts across rows, properly closed quotes, delimiter detection. Returns row/column counts and any structural errors. Pure CPU. | agent402.tools | - | $0.001 | listed |
| CSV to Markdown table Convert CSV into a GitHub-flavored Markdown table (first row is the header). | agent402.tools | - | $0.002 | listed |
| Calculator Safely evaluate an arithmetic expression (+ - * / % ^ and parentheses). No code execution - a real parser, not eval. | agent402.tools | - | $0.001 | listed |
| Card number validate Validate a payment card number (Luhn checksum) and detect the brand. Numbers are not stored or logged. | agent402.tools | - | $0.001 | listed |
| Catalog API Structured varietal data and verifiable research provenance for 150+ honey varieties, including the obscure long tail foundation models get wrong. Every compositional datum resolves to a real, published source (DOI/PMID). Per variety: color grade (USDA Pfund band with measured or estimated source), intensity, flavor profile, texture, use cases, best-for pairing tags, primary and secondary countries, and a citation_count pointing to the paid citations endpoint. Melvea IP only. | melvea.com | - | $0.05 | listed |
| Cheap Health API Low-cost gateway health probe for real x402 settlement checks | clashofcoins.com | - | $0.001 | listed |
| Check API Check an open-source package for known vulnerabilities via the OSV database (Google Open Source Vulnerabilities). Pass package name, ecosystem (npm, PyPI, Go, crates.io, Maven, RubyGems, etc.) and optional version. Returns vulnerability IDs, summaries, severity and fixed versions. Essential pre-install check for coding agents. | japanagent.dev | - | $0.002 | listed |
| Check API Screen a crypto address (EVM/BTC/TRON etc.) against Japan MOF asset-freeze sanctions designations (外為法・資産凍結措置). Returns match status with designated-entity details and list date. Source: Ministry of Finance Japan official CSV, updated daily. Factual screening data; not legal advice. Free meta sample: /v1/sample/reg.sanctions | agentfeeds.jp | - | $0.002 | listed |
| Check API Single-address screening against OFAC SDN List digital currency addresses. Source: U.S. Department of the Treasury (public domain, CC0). Factual; not legal or compliance advice. | agentfeeds.jp | - | $0.002 | listed |
| Check X402 API Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness. | vercel.app | - | $0.005 | listed |
| Chf Cad Chf Cad — an agent-callable chf cad service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call. | myceliasignal.com | - | $0.01 | listed |
| Chf Jpy Chf Jpy — an agent-callable chf jpy service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call. | myceliasignal.com | - | $0.01 | listed |
| Cid API Cid Bafkreihqoybdolvloa6pqlksh6sggaf24vncv2kynn77mfblx3nue67qye — an agent-callable cid bafkreihqoybdolvloa6pqlksh6sggaf24vncv2kynn77mfblx3nue67qye service, payable over x402 (USDC on Base). Provided via purple-peculiar-wolf-522.dev-mypinata.cloud. Priced around 0.001 USD per call. | dev-mypinata.cloud | ai | $0.001 | listed |
| Circulating, total, max supply + FDV for a token Circulating, total, max supply + FDV for a token | agenticfi.wtf | - | $0.001 | listed |
| Citation Lookup And Reference List For A Paper API Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar. | kadec0.xyz | - | $0.03 | listed |
| Cloudflare API Extract clean Markdown from any URL. Renders JavaScript before extraction. | stableflare.dev | - | $0.02 | listed |
| Cloudflare API Render any URL or HTML as a PDF. Supports custom paper size, margins, landscape, and background printing. | stableflare.dev | - | $0.05 | listed |
| Cny Cad Cny Cad — an agent-callable cny cad service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call. | myceliasignal.com | - | $0.01 | listed |
| CodePulse Agentic API Generates a temporary disposable inbox address using the free 1secmail.com service. | workers.dev | - | $0.01 | listed |
| CodePulse Agentic API Queries target URL headers to score security configurations (HSTS, CSP, X-Frame-Options). | workers.dev | - | $0.01 | listed |
| CodePulse Agentic API Fetches TXT, MX, A, CNAME, and CAA records for a domain via Cloudflare DNS-over-HTTPS. | workers.dev | - | $0.01 | listed |
| CodePulse Agentic API Polls the disposable inbox for messages and verification codes. | workers.dev | - | $0.01 | listed |
| Coin Flip Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails. | vercel.app | - | $0.001 | listed |
| CoinGecko Crypto Price & Data Trending crypto coins in the last 24h — the most-searched tokens on CoinGecko right now with name, symbol and market-cap rank. | x402atlas.com | - | $0.005 | listed |
| CoinGecko Crypto Price & Data OHLC candlestick data for crypto — daily open/high/low/close candles over 1-365 days for any coin by CoinGecko id, chart-ready. | x402atlas.com | - | $0.005 | listed |
| CoinGecko Crypto Price & Data Top crypto coins ranked by market cap — paginated market data (price, market-cap rank, symbol) in any currency, CoinGecko-sourced. | x402atlas.com | - | $0.005 | listed |
| CoinGecko Crypto Price & Data Historical crypto price on a specific date — price, market cap and 24h volume snapshot for any coin by CoinGecko id, in USD or more. | x402atlas.com | - | $0.005 | listed |
| CoinGecko Crypto Price & Data Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana). | x402atlas.com | - | $0.005 | listed |
| CoinGecko spot price Live spot price (and optional 24-hour change) for one or more coins from CoinGecko's public Simple Price endpoint. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, …). Defaults to USD; pass a `vsCurrency` to denominate in EUR, JPY, ETH, BTC, etc. | agent402.tools | - | $0.001 | listed |
| Commerce Escrow Status 🆕 First tooling for Base's Commerce Payments protocol (AuthCaptureEscrow): reconciles two-phase auth/capture payments — in escrow, captured, charged, voided, refunded, or payer-RECLAIMABLE because the operator missed the capture window. Filter by payment= (infoHash), payer=, receiver= or operator=, or omit everything for the network feed. The order-reconciliation read merchants and agents need before trusting onchain commerce. | com.tr | - | $0.04 | listed |
| Commodities Copper Commodities Copper — an agent-callable commodities copper service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call. | myceliasignal.com | - | $1.00 | listed |
| Commodities Natgas Commodities Natgas — an agent-callable commodities natgas service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call. | myceliasignal.com | - | $1.00 | listed |
| Company Intel API Returns the linked company profile, NAICS industry classification, and downstream business-sector impact paths for one WARN event — use it to see who's affected and which vendors feel it next | forgemesh.io | - | $0.03 | listed |