| Stablecoin Supply Data Stablecoin supply data. Returns circulating supply for stablecoins broken down across chains via DefiLlama, filterable by peg type and by collateral mechanism, so you can compare fiat-backed against crypto-backed and algorithmic stablecoins. For stablecoin market share, depeg watch, and chain-level supply tracking. Keyless. |  kadec0.xyz | - | $0.02 | listed |
| Tag Per Track API Tag-per-Track: Agentic-First Musical Audio Analysis API. Extracts BPM, Key, Mood, Genres and Instruments from audio URLs. |  tag-per-track.cloud | - | $0.05 | listed |
| The Agent Carnival 🔥 The Campfire — toss a SPARK into the fire ($0.01): one word or tiny phrase. You see only the spark before yours (GET /booth/campfire); different agents feed the same fire. When it has enough sparks it closes — the fire DREAMS one tale from everything it was given (every spark verbatim, guaranteed), and EVERY teller receives the finished tale as a mintable numbered edition copy. POST { spark }. |  midway.lol | - | $0.01 | listed |
| Tickers API Find tickers by free-text `?search=` (name or symbol) across asset classes via `?market=stocks|crypto|fx|indices` (default stocks), with optional `?type=`, `?exchange=`, `?active=`, `?limit=`. Returns symbol, name, market, exchange, type, and identifiers. Use to discover crypto pairs (X:BTCUSD), FX pairs (C:EURUSD), and index symbols (I:SPX). From x402stock |  x402stock.xyz | - | $0.01 | listed |
| Toolsmith Live job postings without scraping: company= returns an employer's current openings straight from their official ATS board (Greenhouse, Lever, Ashby, SmartRecruiters) with title, location, department, type and apply URL; query= searches remote-heavy job APIs (Remotive, Arbeitnow) by keyword. Optional location= filter. JSON response. $0.02 USDC per call, pay via x402, no API key. |  toolcall.click | - | $0.02 | listed |
| Top Stressed API Top stressed crypto issuers from the current DeltaSignal slice. |  aitrailblazer.net | - | $0.05 | listed |
| Top Yield Pools Across All Protocols And Chains API Top yield pools across all protocols and chains - sorted by APY |  agenticfi.wtf | - | $0.001 | listed |
| Trending API Use for one call answering 'where is retail attention right now': a deterministic 0–100 attention score per ticker blending Reddit finance-community and 4chan /biz/ mention shares (24h window), with momentum, cross-platform confirmation, breadth & concentration (HHI), and Fear & Greed context. Transparent — every row carries its raw per-platform inputs. From x402stock | x402stock.xyz | - | $0.04 | listed |
| URL parse Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname. |  agent402.tools | - | $0.001 | listed |
| Upcoming Us Economic Data Releases API Upcoming US economic data releases — WHEN the market-moving prints land, not just their latest values. Returns curated high-importance releases (CPI, PPI, PCE, jobs, JOLTS, GDP, retail sales, housing starts, industrial production) within `?days=` (default 30, max 90), each with date and category, plus the next FOMC meeting. `?past=true` includes the last week. Release dates from FRED. | x402stock.xyz | - | $0.02 | listed |
| Us Fedfunds Us Fedfunds — an agent-callable us fedfunds service, payable over x402 (USDC on Base). Provided via Apify. Priced around 1 USD per call. |  myceliasignal.com | - | $1.00 | listed |
| Use To Find The Day's Biggest Movers In One Call API Use to find the day's biggest movers in one call. Returns the top 10 gainers and top 10 losers by percent move with price, the current US market session status (open, closed, pre, or post), and the latest market news headlines. No ticker needed. Built for agents scanning what is moving today. From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key. | x402stock.xyz | - | $0.03 | listed |
| VAPE VAPE treasury — A protocol's on-chain treasury composition — total USD, own-token USD, and the own-token share (a treasury that's ~all its own token is a fragility signal). |  workers.dev | - | $0.01 | listed |
| Verification Status API Verification and tier status for an AI agent on AgentCrush. Returns tier, verified flag, claim status, and last tier update timestamp. |  agentcrush.xyz | - | $0.005 | listed |
| Weather Forecast & Air Quality Weather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitude. Daily forecast resolution. Keyless, via Open-Meteo. | kadec0.xyz | - | $0.005 | listed |
| WhaleAlert Large on-chain transaction monitor — whale movements on Base, Ethereum, and Robinhood Chain with AI pattern analysis |  lonestaroracle.xyz | - | $0.05 | listed |
| Yield.xyz MCP Build unsigned transactions to enter any DeFi yield — native/liquid staking (ETH, SOL, ATOM), stablecoin lending (USDC/USDT on Aave, Morpho), ERC-4626 vaults, and tokenized RWAs across 80+ networks. Does NOT execute: the caller signs and broadcasts each tx, so keys never leave the caller. Find yield IDs via yields_get_all. |  yield.xyz | - | $0.001 | listed |
| alpha402x Verbatim, line-cited extraction of the material quantitative sentences from any U.S. company's SEC 10-Q (debt, buybacks, acquisitions, litigation). Extractive, not generative. Any ticker. |  alpha402x.com | - | $0.05 | listed |
| breach-account Look up the known breaches an email address appears in, returning breach METADATA only (name, date, data classes) and never passwords or leaked personal data. Uses the keyed Have I Been Pwned account API; when no API key is configured the route returns available false and the keyless password and domain routes still work. Breach indicators, not a guarantee. |  agentstools.dev | - | $0.01 | listed |
| dev-package-stats Package intelligence across npm / PyPI / crates: latest version, age, release cadence, deprecation/yank, license, and download stats (last day/week/month) with a rising/falling trend. Aggregates the official registry + downloads API + deps.dev. | agentstools.dev | - | $0.005 | listed |
| freight-lookup Search US motor carriers by name in the FMCSA Company Census and get ranked candidates, each with its USDOT number, MC docket, legal name, state, decoded carrier status, authority status and operation. Cheap first step before freight/carrier. | agentstools.dev | - | $0.008 | listed |
| onchain-market-report Rich cross-source market report for 50+ assets (crypto, stablecoins, forex, metals): Chainlink + DEX pools, TVL-weighted VWAP, total pool TVL, recent change and volatility — all computed by us from on-chain state. | agentstools.dev | - | $0.05 | listed |
| 0.01 USDC on base-sepolia 0.01 USDC on base-sepolia |  dev-mypinata.cloud | ai | $0.01 | listed |
| Agent Confession API Agent Confession API |  mayim-mayim.com | - | $0.02 | listed |
| Agent402.tools Live crypto prices for one or many coins in any vs_currency (usd, eur, btc, eth, etc). Returns last price, 24h change %, 24h volume, and market cap per coin. The simplest crypto price read - for ranked market-cap tables use crypto-market, for cand... | agent402.tools | - | $0.01 | listed |
| Agent402.tools Bundled execution of the Security audit workflow - Enumerate a domain's external attack surface in one workflow: certs, DNS posture, email auth, HTTP security headers, and tech stack. One x402 payment runs 7 underlying tools (cert-transparency, dn... | agent402.tools | - | $0.12 | listed |
| Agent402.tools Bundled execution of the Multi-stop trip planner workflow - Plan a multi-stop journey deterministically: geocode each stop, sum the pairwise haversine distances, estimate arrival times by adding driving hours per leg, count business days from toda... | agent402.tools | - | $0.05 | listed |
| Agent402.tools Convert text to speech using OpenAI TTS-1. Returns base64-encoded audio (mp3/opus/aac/flac/wav/pcm). 10 voices available. No API key needed; pay per call via x402. Text capped at 2000 chars. | agent402.tools | - | $0.05 | listed |
| Agent402.tools Bundled execution of the Crypto research workflow - Pull live price, market structure, OHLC history, trending status, global market context, and recent news for a single coin in one pass. One x402 payment runs 7 underlying tools (crypto-price, cry... | agent402.tools | - | $0.70 | listed |
| Agent402.tools Live gas price snapshot for a chain - slow / standard / fast tiers in gwei, plus the latest base fee. Sampled from eth_feeHistory (last 4 blocks, 25th/50th/90th percentile priority fees). Use to estimate before broadcasting a transaction from anot... | agent402.tools | - | $0.005 | listed |
| Agent402.tools Bundled execution of the API contract drift check workflow - The 'did this API contract change in a way that breaks our integration?' workflow. Diff two OpenAPI snapshots structurally, lint the new one for agent-readiness regressions, extract the ... | agent402.tools | - | $0.06 | listed |
| Agent402.tools Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week - optionally rendered in any IANA timezone via ?tz=. | agent402.tools | - | $0.001 | listed |
| Agent402.tools Transcribe audio to text using OpenAI (gpt-4o-mini-transcribe). Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. No API key needed; pay per call via x402. Max 5 minutes of audio, 25 MB file size. | agent402.tools | - | $0.03 | listed |
| Agent402.tools Extract a value from JSON by dot/bracket path, e.g. "items[2].name". | agent402.tools | - | $0.001 | listed |
| Agent402.tools OpenAI-compatible chat completions with server-side model choice: omit "model" (or send "auto") and the gateway routes the prompt to the top-ranked model for its task type (code / reasoning / long-context / general) from a fixed eval-derived ranki... | agent402.tools | - | $0.01 | listed |
| Agent402.tools Convert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars. | agent402.tools | - | $0.10 | listed |
| AproxPay Residential proxy fetch (up to 2MB). Returns HTTP 200 with the target body; read X-Target-Status for the origin status. Billed for the forwarded request, not for a 2xx origin response. For larger responses use /v1/proxy/large; at >17 requests a session pass is cheaper. |  aproxpay.com | - | $0.003 | listed |
| Arbitrage Scanner API Token-by-token Kimchi Premium for 189+ tokens, reverse premium, Upbit-Bithumb gaps, market share |  printmoneylab.com | - | $0.01 | listed |
| Avg Interest Rates API The average interest rate the US Treasury currently pays on its outstanding debt, broken out by security (Treasury Bills, Notes, Bonds, TIPS, FRNs, savings, and the marketable/total aggregates) for the latest reported month, in percent. No ticker needed. A read on the government's cost of borrowing that complements the /treasury-yields curve. Sourced from the US Treasury (FiscalData). | x402stock.xyz | - | $0.01 | listed |
| BizIntel API Resolves city, state, and coordinates for a postal/zip code using the Zippopotam registry. | workers.dev | - | $0.01 | listed |
| BizIntel API Retrieves the current Federal Reserve Board federal funds target interest rate. | workers.dev | - | $0.01 | listed |
| Blocks Range API Bulk Bitcoin block extract (max 144 blocks per call = $1.44 cap). Returns array of per-block summaries (height, time, miner pool, tx count, witness/taproot/ordinals/op_return stats, total output, coinbase reward). |  carbon-cashmere.de | - | $0.02 | listed |
| Btc Volatility Risk Premium API BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL. |  regimeshift.xyz | - | $0.001 | listed |
| Bullish/bearish sentiment score per token Bullish/bearish sentiment score per token | agenticfi.wtf | - | $0.001 | listed |
| CRC32 CRC-32 checksum of a text string (hex), the IEEE polynomial used by zip/png/gzip. | agent402.tools | - | $0.001 | listed |
| CSV to JSON Parse CSV (quoted fields supported) into a JSON array of objects, using the first row as headers (header=false for arrays). | agent402.tools | - | $0.002 | listed |
| Case convert Convert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, lower, UPPER. | agent402.tools | - | $0.001 | listed |
| Check API Check domain availability and current registration price. |  vercel.app | - | $0.01 | listed |
| CoinGecko Crypto Price & Data Crypto coin metadata and market data by CoinGecko id — name, symbol, market-cap rank, price, homepage and categories for any token. |  x402atlas.com | - | $0.005 | listed |
| Compare API Compare 2 to 3 US-listed stocks side by side (peer or watchlist comparisons). Pass a comma-separated list via `?tickers=AAPL,MSFT,NVDA` (1 to 3 symbols). Returns price and day change, market cap, P/E, EPS, revenue, gross and net margins, and dividend yield per ticker. Built for multiple stocks — for a single stock, `/api/v1/quote/{ticker}` is cheaper. From x402stock | x402stock.xyz | - | $0.05 | listed |