The STALL

Tools (50)

• address-security

  Wallet/address security and reputation check. Detects phishing, sanctions, cybercrime, money laundering, dark-web activity, and blacklisted wallets using GoPlus Labs + SlowMist + BlockSec data. Returns risk score (0-100) and per-flag breakdown. Supports Ethereum, Base, BSC, Polygon, Arbitrum, Optimism, Avalanche, and more.

• agent-access-check

  Checks whether a website is accessible and agent-friendly. Fetches robots.txt, .well-known/ai.txt, and sitemap.xml; inspects HTTP headers (CORS, CSP, rate-limit); and returns a readiness verdict. Useful for agents that need to decide whether to scrape, crawl, or interact with a domain before committing to a workflow. Returns allowed/blocked status, disallowed paths, crawl delay, AI-specific rules, and sitemap URL if present.

• agent-kya-score

  Know Your Agent (KYA) trust score for any EVM wallet. Returns a 0–100 score, tier (trusted/verified/unknown), sanctions screening result, per-dimension score breakdown (wallet age, activity, sanctions, ERC-8004 identity, KYB, tx history, trust bond, endpoint quality), on-chain attestations (Coinbase KYC, Gitcoin Passport, USDC balance), wallet stats (balance, tx count, estimated age), and per-transaction spending limits. Use before accepting payment from an agent or before dispatching a sub-agen

• ai-image-gen

  Generate an AI image from a text prompt using DALL-E 3. Returns a public URL for the image (hosted for 1 hour) plus the model's revised prompt. Supports vivid or natural style, and three aspect ratios: square (1024×1024), portrait (1024×1792), or landscape (1792×1024). $0.080/image — 20% below closest x402 competitor. Output is base64-encoded PNG or a direct URL depending on response_format.

• air-quality

  Real-time US AQI and pollutant readings for any lat/lon. Returns current AQI with category label (Good/Moderate/Unhealthy/Hazardous), PM2.5, PM10, nitrogen dioxide, ozone, carbon monoxide, dust levels, and UV index. Data from CAMS (Copernicus Atmosphere Monitoring Service), updated hourly. Use for health advisories, outdoor event planning, environment-sensitive routing, or regulatory compliance checks.

• analyst-ratings

  Wall Street analyst consensus and price targets for any US equity. Returns buy/hold/sell breakdown, mean recommendation score (1=Strong Buy, 5=Strong Sell), analyst count, and price target range (low/mean/median/high) with upside-to-target. Free Yahoo Finance data, no API key. Complements us-stock-price and equity-technicals with the analyst conviction layer.

• arxiv-intel

  Search arXiv preprints by query, filtered by field (title/abstract/author/all) and category. Returns title, authors (up to 6), abstract (first 600 chars), arXiv ID, PDF link, publish date, and subject categories. arXiv is the canonical source for AI/ML, CS, physics, math, and quantitative biology preprints — typically months ahead of peer-reviewed journals. Useful for AI research agents, literature scouts, competitive technique tracking, and grant-writing support. No API key required.

• audio-transcribe

  Transcribe audio from any publicly accessible URL using OpenAI Whisper. Supports mp3, mp4, m4a, wav, webm, ogg, flac, and wma up to 24 MB. Returns the full transcript text, detected language, and estimated duration in seconds. Optionally accepts an ISO 639-1 language hint to improve accuracy. Useful for processing voice memos, meeting recordings, podcast snippets, interview clips, and audio attached to social media. Undercuts orbisapi.com audio-transcription-api by 24%.

• aviation-weather

  Aviation weather (METAR + TAF) for any airport. Returns current conditions (temp, wind, visibility, ceiling, flight category VFR/MVFR/IFR/LIFR) plus 24–30 hour TAF forecast periods. Accepts IATA (JFK) or ICAO (KJFK) codes. Source: NOAA Aviation Weather Center — official, real-time, no API key.

• base-season

  Base chain season snapshot: total chain TVL, top 10 protocols by Base-native TVL, category breakdown, 7d trend, and top Base ecosystem tokens by market cap. No input required — agents use this for pre-trade orientation before DeFi, lending, or liquidity calls on Base.

• block-intel

  Returns block header data (number, hash, timestamp, gas used/limit, base fee, tx count, validator address) for any block on Base, Ethereum, or Arbitrum. Accepts block tag (latest/safe/finalized) or number. Free-RPC alternative to skills.onesource.io at 33% lower price — $0.002 vs $0.003.

• breadcrumb-extractor

  Extracts structured breadcrumb navigation from a URL. Returns domain, ordered path segments with human-readable labels, query parameters as key-value pairs, and a formatted breadcrumb trail string. Identifies numeric IDs vs. named path segments. Pure URL parsing — zero external calls. Useful for agents that process sitemaps, navigation menus, or need to understand page hierarchy.

• btc-game-theory

  Bitcoin mining game theory and systems dynamics in one call. Returns: selfish-mining profitability threshold (Eyal-Sirer), 51%-attack electricity cost estimate, fee-vs-subsidy revenue split, difficulty epoch trajectory (expansion / contraction / neutral), Nash-equilibrium state for honest mining, and current epoch progress. Sourced from mempool.space and CoinGecko — no API key required. Use for miner-incentive analysis, network security assessment, and pre-investment regime detection.

• btc-miner-econ

  Bitcoin mining economics and fee-market game theory via mempool.space. Returns current fee rates and pressure tier, miner revenue split (subsidy vs fees), next difficulty adjustment (direction, magnitude, blocks remaining), mining pool concentration (top-3 hashrate share), and mempool backlog size. Useful for agents reasoning about BTC transaction timing, miner incentive structures, or on-chain network health.

• btc-systems-theory

  Seven-lens systems theory analysis of the Bitcoin network. Returns: (1) difficulty feedback loop state + regulator lag, (2) mempool stock-flow ratio and queue depth, (3) confirmation delay at economy/priority fee tiers, (4) fee nonlinearity index and hash-rate growth curvature, (5) Nakamoto coefficient (min pools for 51% consensus), (6) self-organization score for fee market equilibrium, (7) HHI mining concentration index and decentralization grade A–F. Sourced from mempool.space — no API key re

• chain-pulse

  Returns an Ethereum block header + current stablecoin depeg status in one call. Collapses the eth-block → stablecoin-watch 2-hop chain. Block fields: number, hash, miner, timestamp, gas_used, tx_count. Stablecoin fields: symbol, price, peg_deviation, depeg_status, composite alert level. Supports Ethereum, Base, Polygon, Arbitrum. Free upstreams (DRPC + DeFiLlama), no API key required.

• changelog-generate

  Converts commit messages to a keep-a-changelog release block. Groups feat/fix/perf/docs/security commits into Added/Fixed/Changed/Security sections. Returns versioned markdown or structured JSON. No API key — pure transform.

• chromatic-dispersion

  Fiber optic chromatic dispersion calculator. Computes dispersion coefficient D(λ) in ps/(nm·km), accumulated dispersion (ps/nm) over a fiber span, and dispersion slope for SMF-28, NZDSF, DSF, LEAF, DCF, and ULLSF fiber types. Optionally sweeps a wavelength range (C-band, L-band, or custom). Pure math — instant, zero API calls. Useful for optical network design, DWDM link budget, and dispersion compensation planning.

• citation-formatter

  Looks up an academic paper by DOI and formats it as BibTeX, APA, MLA, or Chicago citation. Returns full paper metadata: authors, year, journal, volume, pages, publisher. Covers 148M+ works via CrossRef (free registry). Useful for research agents building reference lists, literature review workflows, and knowledge extraction pipelines.

• city-lookup

  Search airports and cities by keyword, IATA code, or city name. Returns IATA/ICAO codes, coordinates, country, and timezone for each match — useful for travel planning, routing, and geographic enrichment.

• classic-novels

  Looks up classic and contemporary books by title, author, or ISBN via Open Library (748M+ editions). Returns publication year, subjects/genres, page count, cover images, and links to read online via Project Gutenberg or Internet Archive. Useful for research agents, reading recommendation workflows, literature analysis, and bibliographic data enrichment.

• clinical-trials

  Search ClinicalTrials.gov for clinical studies by condition, intervention, or keyword. Returns phase, status, enrollment, sponsor, and dates. NIH primary source — no markup. $0.005/call.

• code-api-surface

  Analyzes a code snippet and returns its API surface: HTTP routes (method + path), exported symbols, and middleware. Supports Express, FastAPI, Flask, Django, Spring Boot, ASP.NET, Rails, Gin. Pure static analysis — no code execution. Returns JSON with routes[], exports[], middleware[], lang, framework, and a plain-English summary. $0.10/call.

• code-test-detector

  Detects testing frameworks and test coverage presence in a code snippet or GitHub repository. For code snippets: identifies test functions, assertions, mocks, fixtures, and frameworks (Jest, pytest, go test, JUnit, RSpec, etc.). For GitHub repos: counts test files vs source files, surfaces config files, and gives a coverage verdict. No code execution — pure static analysis.

• commodity-futures

  Returns live price and intraday metrics for major commodity futures: crude oil, natural gas, gold, silver, copper, platinum, wheat, corn, soybeans, and coffee. Includes price, day high/low, 52-week range, previous close, exchange, and contract name. Filter by commodity name or category (energy/metals/agricultural). $0.010/call — Yahoo Finance free API, no key required.

• company-due-diligence

  AI-agent due diligence on any company. Queries SEC EDGAR for public company data (CIK, ticker, SIC, address, filing history) and optionally analyzes the company website for contact details, social profiles, and legitimacy signals. Returns a structured report with risk flags. Accepts company name plus optional domain.

• company-intel

  Returns SEC EDGAR due diligence data for any US public company by ticker symbol: legal name, CIK, SIC industry code and description, state of incorporation, fiscal year end, SEC filer category, primary business location, and 2-year filing history (10-K/10-Q/8-K counts and most-recent dates). Use before any agent task involving US public company identification, regulatory filing assessment, financial analysis, or industry classification. Free upstream: SEC EDGAR public API (US government data, no

• concentration-risk-score

  Returns a concentration-risk score for an x402 pay_to wallet: HHI, unique payer count, top-payer share, persistence across scans, and a risk tier (LOW / MEDIUM / HIGH / CRITICAL). An agent uses this to assess whether an endpoint is a single-agent dependency before building a workflow that depends on it.

• congressional-trades

  US Congressional stock trades (STOCK Act disclosures). Two modes: supply a ticker to get all congress member trades in that stock (with excess-return-vs-SPY performance), or omit ticker for recent market-wide congressional activity. Returns representative, party, chamber, transaction type, dollar range, dates, and historical performance vs. SPY. Sourced from Quiver Quant's STOCK Act aggregator — no API key required. $0.022/call.

• consumer-brief

  AI-synthesized US consumer health briefing. Fetches 8 FRED signals (Michigan sentiment, retail sales MoM, real PCE, real disposable income, savings rate, total/revolving consumer credit) and uses GPT-4o-mini to produce consumer posture, spending regime, confidence level, savings stress, credit dependency, 150-word narrative, dominant risk, and agent implication. One call collapses 8 FRED lookups + LLM synthesis for retail sector exposure, recession probability, and consumer credit risk.

• content-analyze

  AI-powered URL content analysis. Fetches a URL, extracts the readable article text, and returns structured intelligence: 2–3 sentence summary, key points, named entities with types, sentiment score, topic tags, content type classification, and credibility signals (has author/date/sources). Use for content intelligence pipelines, research synthesis, or automated brief generation. $0.008/call.

• content-moderation

  Classify text (and optional image URLs) for harmful content — hate speech, harassment, self-harm, sexual content, violence, and illicit instructions. Returns flagged status, risk level (NONE/LOW/MEDIUM/HIGH), flagged categories, per-category confidence scores, and an optional AI-generated safe rewrite.

• country-info

  Country information lookup by name, ISO code (alpha-2 or alpha-3), or capital city. Returns: official name, ISO codes, capital, population, area (km²), region, languages, currencies (code + symbol), borders, calling code, timezones, and flag image URL. Useful for international business agents, geographic enrichment, currency identification, and compliance workflows.

• credit-spreads

  Returns current US corporate credit spreads from ICE BofA indices via FRED (free, no API key): High Yield OAS, Investment Grade OAS, and BBB (lowest IG tier) OAS. Includes HY-IG differential and risk regime classification. Pairs with treasury-yields for complete fixed-income discount rate construction.

• cron-parser

  Parse and explain any Unix cron expression in plain English. Returns human-readable schedule description, field breakdown, and the next N run times (UTC). Supports @yearly/@monthly/@weekly/@daily/@hourly shortcuts. Zero external calls.

• crypto-fear-greed

  Crypto Fear & Greed Index — current score (0=extreme fear, 100=extreme greed), 7-day trend, 30-day min/max/avg, and trading regime signal. Free alternative.me data updated daily. $0.005/call.

• crypto-fiat-price

  Cryptocurrency price in any fiat currency — JPY, EUR, CNY, GBP, KRW, INR, AUD, BRL, or 80+ more. Input a coin name or CoinGecko ID (bitcoin, ethereum, solana, btc, eth, sol, etc.) and one or more currency codes. Returns current price, 24h percent change per currency, and last updated timestamp. Free upstream: CoinGecko public API (no key). 85% below specialized fiat oracles. Useful for Asian/European market agents, cross-border DeFi pricing, and multi-currency portfolio valuation.

• crypto-momentum-pack

  Korean exchange volume leaders + global 24h movers + optional DeFi yield cross-reference in one call. Collapses the printmoneylab/market-movers → ottoai/yield-farming-active agent chain at 53% of the chain cost. Returns top gaining/losing/volume-leading tokens on Upbit (Korea's #1 exchange), global CoinGecko movers, and matching DeFi yield pools when include_yields is true. Korean volume often leads global crypto moves — use for pre-trade momentum confirmation, cross-exchange alpha identificatio

• crypto-news-impact

  Latest cryptocurrency news headlines from CoinDesk with live price correlation for mentioned assets. Returns up to 10 recent articles — each with title, URL, published timestamp, primary category, and a keyword-derived sentiment signal (bullish/bearish/neutral). For each article, identified crypto assets (BTC, ETH, SOL, etc.) are enriched with current USD price and 24h price change. Use before any crypto research, portfolio review, or market sentiment task to understand what news is driving the

• crypto-pulse

  Crypto market pulse — latest Ethereum (or Base) block context plus top crypto gainers and losers by 24h change, in a single call. Returns: block_number, timestamp, gas info (base_fee_gwei, gas_used/limit, tx_count), and top movers (symbol, name, price_usd, change_24h, volume_24h, market_cap). Use for crypto portfolio context, on-chain/market correlation, or pre-trade situational awareness. Free upstream: DRPC + CoinGecko. $0.007/call — 30% below the comparable two-endpoint chain.

• crypto-top-movers

  Real-time cryptocurrency market snapshot: top 5 gainers and top 5 losers by 24-hour percentage change (among the top 100 coins by market cap), plus the 10 largest coins by market cap with current prices and 24h change. Also returns global market statistics: total market cap (USD), BTC dominance percentage, and 24h trading volume. Stablecoins excluded from movers ranking. Use before any crypto portfolio, trading, or market analysis task to get a current regime read. Data: CoinGecko public API (re

• currency-format

  Locale-aware currency formatting and symbol lookup for any ISO 4217 currency. Formats numbers as currency strings (e.g. 1234.56 USD → '$1,234.56', EUR in German locale → '1.234,56 €'), returns currency symbol, decimal separator, grouping separator, and currency name. Pure computation — no API key, no upstream latency. Supports 150+ currencies and custom locale overrides. Use for: financial report generation, invoice display, DeFi amount formatting, cross-regional price display.

• cve-intel

  CVE vulnerability lookup via NVD NIST. Query by CVE ID, keyword, or severity. Returns CVSS score, attack vector, CWEs, and references. Covers 260K+ vulnerabilities.

• db-perf-intel

  Database performance intelligence: current versions, EOL status, and benchmark-grounded performance profiles for PostgreSQL, MySQL, MariaDB, MongoDB, Redis, Elasticsearch, SQLite, Cassandra, CockroachDB, and SQL Server. Useful mid-task for infrastructure audits, database selection, and upgrade urgency checks. Live EOL data from endoflife.date; performance profiles from TPC-C, pgbench, sysbench, and YCSB benchmarks.

• defi-market-pulse

  Combined DeFi yield intelligence and market momentum in one call — 33% cheaper than separate yield-farming-active + market-movers calls ($0.009). Returns top yield pools from DeFiLlama, crypto and equity market movers, and a cross-signal layer that flags 'boosted' pools (high APY + rising token) vs 'at_risk' pools (high APY + falling token). Use for capital allocation decisions, pre-trade DeFi context, and portfolio rebalancing signals.

• defi-portfolio

  Multi-chain DeFi portfolio scanner. Returns token holdings and USD values for any EVM wallet across Ethereum, Base, Polygon, and Arbitrum mainnet. Covers ETH, major stablecoins (USDC, USDT, DAI), WBTC, ARB, cbETH, and chain-native assets. Collapses the defi.hugen.tokyo/defi/address seam — 41 payers. $0.007/call.

• defi-state-pack

  Returns Ethereum block header + stablecoin depeg status + top DeFi yield farming pools in one call. Collapses the 3-hop eth-block → stablecoin-watch → yield-farming chain (PROSPECTOR signals 64812 + 60977, strength 1.0). All three upstreams fetched in parallel. Supports Ethereum, Base, Polygon, Arbitrum. Filter yield pools by chain, protocol, min TVL, min APY. Free upstreams — DRPC + DeFiLlama — no API key required.

• defi-yield-strategies

  DeFi yield strategy planner. Given a portfolio size and risk tolerance, returns an optimized allocation across top DeFi yield opportunities. Risk tiers: low (stablecoins only, APY < 30%, TVL ≥ $50M), medium (TVL ≥ $10M, APY < 80%), high (TVL ≥ $1M, all assets). Output includes per-position allocation, APY, weekly yield estimate, chain, and 7-day APY trend. Covers 16K+ pools across 400+ DeFi protocols via DeFiLlama.

• defi-yields

  Returns top DeFi yield pools ranked by APY from DeFiLlama. Covers 16,000+ pools across 400+ protocols and 50+ chains (Ethereum, Base, Solana, Arbitrum, Polygon, etc.). Filter by chain, minimum APY, minimum TVL, or stablecoin-only. Each pool includes APY breakdown (base + reward), TVL, 7-day APY change, and a direct DeFiLlama link. Sourced from DeFiLlama public API — no key required, updated continuously.

• defillama-coin-price

  Returns on-chain aggregated token prices via DefiLlama coins API. Accepts coingecko IDs, contract addresses, or shorthand (eth, btc, sol). Up to 10 tokens per call. Undercuts blockrun.ai's $0.021/call by 24%.