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Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 23,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

23,457 APIs
APICompanyCategoryPrice / callStatus
Screen The Entire Us Stock Market In One Call API
Screen the entire US stock market in one call. Filter every listed ticker by price range, percent change, and minimum volume, then sort by percent move, price, or volume. Tune with ?min_price=, ?max_price=, ?min_change_percent=, ?max_change_percent=, ?min_volume=, ?sort=, ?order=, ?limit=. Built for agents scanning for setups without iterating ticker by ticker. From x402stock
x402stock.xyz-$0.03listed
Seal API
Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. Network: Base Mainnet. Each request stores one sealed text capsule and returns a token for later retrieval.
0000402.xyz-$0.05listed
Shovels API
Shovels Tags — list all available permit classification tags (and their descriptions) for use as `permit_tags` filters.
stable-shovels.dev-$0.25listed
Size The Room For A Hyperliquid Market API
Size-the-room for a Hyperliquid market. POST {coin, n?}. Returns the top N (default 10, max 25) traders on a coin ranked by volume, each with skill_score + classification + liquidation_count. Pre-trade check for MM agents: 'who am I about to be against on this perp, and have they been liquidated before?' Coin format: BTC, @107 (spot), xyz:SILVER.
graphadvocate.com-$0.05listed
Snapshot A List Of Us Listed Tickers At Once API
Snapshot a list of US-listed tickers at once: for each symbol, the company name, market session, current price, day change and percent change, day OHLCV with VWAP, and previous close. Pass a comma-separated list via `?tickers=AAPL,MSFT,NVDA` (up to 250). Built for pricing a watchlist or portfolio in a single request. From x402stock, a market & economic data API (x402, USDC).
x402stock.xyz-$0.02listed
Splits Calendar API
Market-wide split calendar across all US tickers (no ticker needed). Each row has the ticker, execution date, direction (`forward`/`reverse`), split_from/split_to, numeric `ratio`, and a human `ratio_text` like `10:1` or `1:8`. Future-dated announced splits sort first. Filter `?type=forward|reverse|all`, `?from=`/`?to=` date window, `?order=`, `?limit=`. From x402stock
x402stock.xyz-$0.02listed
StableEnrich
Exa Search - Neural search across the web
enrichx402.com-$0.01listed
StableProducts
List Wirecutter review URLs from the public Wirecutter review sitemaps. Defaults to recommendation-like review pages.
stableproduct.dev-$0.01listed
StableStudio
Get a client token for direct upload to Vercel Blob
vercel.app-$0.01listed
TLS certificate
Inspect the TLS certificate of any public host: subject, issuer, validity window, days remaining, SANs, and SHA-256 fingerprint.
agent402.tools-$0.001listed
TechAnalysis
Full technical analysis — 18 indicators + AI signal summary
lonestaroracle.xyz-$0.05listed
The Combined Market Regime API
The combined market regime — one read fusing the stock Fear & Greed score and velocity, VIX, insider-buying sentiment, and net liquidity into a named regime (e.g. Mixed Signals) with severity and a suggested stance, plus how the S&P 500 historically performed after similar regimes (forward 5/22-day and 1/3-month returns and win rates). From x402stock, a market & economic data API (x402, USDC).
x402stock.xyz-$0.02listed
The Effective Federal Funds Rate API
The effective federal funds rate — the Fed's benchmark policy rate that anchors every other US interest rate — as a monthly average in percent, with the latest value, prior month, month-over-month and year-over-year change, and recent history. No ticker needed. The rate every rate-sensitive analysis starts from. Sourced from the St. Louis Fed (FRED). From x402stock
x402stock.xyz-$0.01listed
The Total Us Public Debt Outstanding To The Penny API
The total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock
x402stock.xyz-$0.01listed
The Us Macro Backdrop In One Call API
The US macro backdrop in one call: the federal funds rate, CPI and PCE inflation, the labor market (unemployment, payrolls, wages), real GDP, and the Treasury yield curve. No ticker needed. Replaces six macro calls (fed-funds + inflation + pce + labor-market + gdp + treasury-yields) at a lower combined price. Spans FRED, BLS, Treasury; sections degrade independently. From x402stock
x402stock.xyz-$0.05listed
Ticker Types API
Reference list of security type codes used in ticker reference data (e.g. CS = Common Stock, ETF, PFD, WARRANT) with descriptions. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.
x402stock.xyz-$0.01listed
Toolsmith
Current gas price and latest block for Base or Ethereum mainnet, straight from public RPC. Fresh within 15 seconds. JSON response. $0.002 USDC per call, pay via x402, no API key.
toolcall.click-$0.002listed
Toolsmith
Public holidays for any country and year, plus optional business-day checking. Pass country= (ISO alpha-2) and year=; add date= to learn whether that day is a business day, whether it is a weekend or public holiday, the holiday name, and the next business day. Covers 100+ countries. JSON response. $0.01 USDC per call, pay via x402, no API key.
toolcall.click-$0.01listed
Treasury Yields API
The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock
x402stock.xyz-$0.01listed
Trending API
Top trending tokens by search volume and social activity
agenticfi.wtf-$0.001listed
Truncate
Truncate text to a maximum length, adding an ellipsis (or custom suffix). Optionally break on word boundaries.
agent402.tools-$0.001listed
USGS Earthquake Feed
Real-time earthquake feed. Recent seismic events from USGS with magnitude, location, depth, and tsunami flag, filterable by magnitude, time, and radius.
kadec0.xyz-$0.005listed
Uniswap V3 spot quote
Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee tier. NOTE: this is a single-tick spot quote - slippage from depleting concentrated liquidity is NOT modeled. Use for indicative pricing; for production swaps quote against the Uniswap SDK.
agent402.tools-$0.002listed
Upcoming And Historical Us Ipos API
Upcoming and historical US IPOs: issuer name, ticker, announced and listing dates, offer price range and final price, shares offered, total deal size, exchange, and status. Filter by `?ipo_status=pending|new|history|rumor`, `?ticker=`, and `?limit=`. Use to track the new-issue calendar and recently priced deals. From x402stock, a market & economic data API (x402, USDC).
x402stock.xyz-$0.02listed
Use To Discover The Point In Time Archive API
Use to discover the point-in-time archive: immutable daily snapshots of ephemeral market state (Hyperliquid perps/spot, JLP pool, pre-IPO marks, market regime, squeeze scores), captured once per UTC day and never overwritten or backfilled. Lists every feed and entity with date coverage; read days via /archive/{feed} and series via /archive/{feed}/range. From x402stock
x402stock.xyz-$0.02listed
Use To See Where Prediction Market Money Is Flowing API
Use to see where prediction-market money is flowing: the most recently traded Polymarket outcome tokens with implied probability (last on-chain price), today's VWAP and USD volume, and indexed totals — decoded by our own indexer from CTF Exchange V2 events on the public Polygon ledger, not from any Polymarket API. `?limit=` up to 100. From x402stock, a market & economic data API (x402, USDC).
x402stock.xyz-$0.03listed
WalletTriage
WalletTriage — real-time wallet risk check: dangerous ERC20 approvals cross-referenced with a live exploit threat feed. Returns risk_score (0-100), risk_level and actionable findings.
wallettriage.com-$0.01listed
Web Page to Markdown
Web page to clean markdown. Converts any URL into LLM-ready markdown plus structured metadata — a keyless alternative to Firecrawl.
kadec0.xyz-$0.03listed
Web Search + Page Reader
Web search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round of scrape calls. Per-page fetch errors are reported honestly per URL.
kadec0.xyz-$0.08listed
Website SEO & Perf Audit
Instant website SEO audit. On-page SEO, performance, and accessibility snapshot for any URL — title, meta tags, headings, links, image alt, load time, and an issues list with score.
kadec0.xyz-$0.08listed
Wnba Game Schedule For Any Date API
WNBA game schedule for any date — matchups, scores, and game status. Pass a date to find games on a specific day.
fanfare.run-$0.001listed
Xray API
Risk x-ray for a whole watchlist or portfolio in one call. Pass `?tickers=AAPL,MSFT,NVDA` (up to 25; optional `?weights=`). Returns per-holding price, sector and cap, plus portfolio concentration (top-weight, Herfindahl, diversification score), sector concentration, market-cap distribution, weighted day performance and risk flags. Replaces dozens of per-holding calls. From x402stock
x402stock.xyz-$0.25listed
Xstocks API
Use to monitor tokenized US equities (xStocks) against their real underlyings: every tracked xStock's on-chain price decoded from Raydium CLMM pool state on the public Solana ledger (no Backed/Chainlink/Pyth API), the underlying's live quote, and the premium/discount percent — plus pool liquidity, scaled-UI multiplier, and a us_market_open arb-context flag. From x402stock
x402stock.xyz-$0.04listed
Yield.xyz MCP
Check whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status and, when required, where to complete verification — call before actions_enter on gated yields.
yield.xyz-$0.001listed
alpha402x
Population-level empirical profile of what separated eventual 5x stocks at the moment of purchase: measurable entry valuation/size/quality specs, twin-engine return decomposition (multiple expansion vs. earnings growth), 5x->25x graduation base rates, drawdown/kill-zone path characteristics, and sector-regime sensitivity. Synthesized and fully cited from Bessembinder, Yartseva, Mayer, Alta Fox, LSV, Novy-Marx, and Morgan Stanley. Clean JSON payload. Descriptive research, not advice.
alpha402x.com-$0.05listed
madoromi
Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is never stored or logged. Async by default: the paid POST returns a job id in seconds; fetch the result with a plain free HTTP GET (no x402 client) at /api/agent/interpret/result/{job_id} (ready in ~15s). options.sync=true for one sync response (10-20s; client timeout 60s+).
madoromi.fun-$0.01listed
Agent Commerce Data API
Premium machine-readable x402 commerce intelligence bundle: catalog snapshot, median pricing signals, earning playbooks, and ecosystem JSON for agents optimizing marketplace presence.
agentic-swarm-marketplace.com-$0.07listed
Agent402.tools
Bundled execution of the Convert anything to markdown workflow - Convert anything at a URL - HTML, PDF, or an image - to clean markdown. The 'I have a URL but it might be any content-type, give me markdown either way' workflow: HEAD-detect the con...
agent402.tools-$0.20listed
Agent402.tools
List EAS (Ethereum Attestation Service) attestations for an address as recipient, attester, or either, on mainnet/Base/Optimism/Arbitrum/Sepolia. Returns attestation id, attester, recipient, schema id, revocable/revoked flags, timestamp, and decod...
agent402.tools-$0.002listed
Agent402.tools
Check text for harmful content using OpenAI moderation (omni-moderation-latest). Returns flagged status, category breakdown (harassment, hate, self-harm, sexual, violence, etc.), and confidence scores. No API key needed; pay per call via x402. Tex...
agent402.tools-$0.002listed
Build USDC transfer
Build the EIP-3009 transferWithAuthorization typed data for a gasless USDC transfer on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei - the exact EIP-712 object an agent signs with its OWN key to authorize an x402 payment. We construct it; we never sign or send. Non-custodial.
agent402.tools-$0.003listed
CodePulse Agentic API
Audits word conflicts in public trademark indexes to verify name availability.
workers.dev-$0.05listed
DNS propagation check
Resolve the same DNS record against 4 public resolvers (Google, Cloudflare, Quad9, OpenDNS) in parallel; surface divergences. The first call you make after a DNS change - confirms the world sees what you intended.
agent402.tools-$0.002listed
Date difference
Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.
agent402.tools-$0.001listed
Describe A Screen In Plain English Via `?q=` (e.g API
Describe a screen in plain English via `?q=` (e.g. 'oversold large caps up today on high volume'). An LLM parses it into a filter, screens the entire US market, optionally confirms oversold/overbought with RSI, and returns a ranked shortlist with a one-line rationale per name. No need to know the filter schema or run the enrichment loop yourself. From x402stock
x402stock.xyz-$0.20listed
ETH Volatility Risk Premium API
ETH 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-$0.001listed
Forecast (naive baselines)
Three textbook baseline forecasts: mean (forecast = average of history), naive (forecast = last value), drift (linear extrapolation from first to last point). Use as a sanity floor - any sophisticated method (SES, Holt, Holt-Winters) should beat the best of these on a backtest, otherwise the extra complexity isn't earning its keep. Returns point forecasts + 95% prediction intervals per Hyndman §3.1.
agent402.tools-$0.001listed
HTML meta (from string)
Extract <title>, <meta description>, OpenGraph/Twitter cards, canonical URL, and JSON-LD blocks from an HTML string. Distinct from /api/meta which fetches a URL - feed this the HTML you already have (from /api/render, /api/extract.body, or your own fetch).
agent402.tools-$0.001listed
Munition Upload API
Munition Upload: x402-paid temporary file hosting for AI agents. Buy a presigned upload slot, upload one local file or generated artifact up to 10 MB, and get a public non-guessable files.munition.io link retained for 7 days. Useful for PDFs, screenshots, images, logs, JSON, reports, browser sharing, webhook sharing, and agent-to-human handoff.
munition.io-$0.005listed
Net present value (NPV)
Compute the net present value of a stream of cashflows at a given discount rate. Index 0 is treated as t=0 (today, not discounted); indices 1..n are discounted by (1+rate)^t. Matches Excel's NPV but with the conventional t=0 treatment most finance textbooks use (Excel itself starts discounting at t=1 - see notes). Use for capital-budgeting decisions: positive NPV = creates value at the discount rate; negative = destroys value.
agent402.tools-$0.001listed
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