The Stall

PAID MCP TOOL — $0.05 USDC per successful call via native x402. Discovery is free. Issue a self-verifying action receipt: sha256-chained record binding actor, action, subject, and result hash to a timestamp and nonce. Returns the receipt plus the exact recompute recipe so any third party can verify it offline. Durable proof for agent actions, dispute defense, and audit trails.

PAID MCP TOOL — $0.021 USDC per successful call via native x402. Discovery is free. SEC EDGAR Schedule 13D/13G beneficial ownership disclosures for US equities. Mode 1 (ticker): returns all 5%+ shareholders for a company — activist funds (13D) vs passive holders (13G), with ownership %, share count, and EDGAR filing URL. Mode 2 (recent): returns market-wide Schedule 13D disclosures in the last N days. Authoritative US government data, updated within minutes of SEC acceptance.

PAID MCP TOOL — $0.050 USDC per successful call via native x402. Discovery is free. On-chain intelligence for any Base network wallet. Classifies EOA vs contract, profiles USDC transfer activity over a configurable block window, scores payer diversity (distinct counterparties / total transfers, 0–100), detects sybil vanity-lookalike address clusters (same first-4 + last-4 hex chars), identifies x402 facilitator SKIM legs (same-block receive+re-send), and assigns a risk label (ORGANIC / ORGANIC_LIKELY / SEEDER_PATTERN / FACILITATOR_SKIM / SYBIL_CLUSTER / FRESH_WALLET / INACTIVE). Three modes: quick (address type+balance+24h USDC summary), standard (+full transfer history+diversity score), deep (+sybil/SKIM detection+risk label). Zero data COGS — Base public RPC only.

PAID MCP TOOL — $0.136 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.136 USDC per successful call via native x402. Discovery is free. 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-agent with funds. Answers: is this agent wallet sanctioned? how established is it? has it passed KYC?

PAID MCP TOOL — $0.35 USDC per successful call via native x402. Discovery is free. AI-synthesized US agricultural commodities market intelligence brief. Assembles 9 real-time signals from Yahoo Finance: corn futures (ZC=F), wheat (ZW=F), soybeans (ZS=F), live cattle (LE=F), lean hogs (HE=F), coffee arabica (KC=F), cotton (CT=F), agribusiness sector ETF (MOO), and Deere & Co (DE, farmer confidence proxy). Returns 52-week context, soy/corn ratio, wheat/corn spread, grain-regime and livestock-regime classification, plus a 200-word GPT-4o-mini narrative covering supply risk, dominant driver, and agent decision implications for food-sector, commodity-trading, and inflation-modeling pipelines.

PAID MCP TOOL — $0.289 USDC per successful call via native x402. Discovery is free. 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). $0.289/image. Output is base64-encoded PNG or a direct URL depending on response_format.

PAID MCP TOOL — $1.75 USDC per successful call via native x402. Discovery is free. AI pipeline architecture brief: finds the best HuggingFace models for your ML task, validates or generates your cron schedule, and synthesizes a deployment guide — all in one call. Serves AI developers and agent builders who need model selection + scheduling together. Input: task description (e.g. 'classify customer sentiment hourly from social media feeds') plus optional HuggingFace pipeline task filter and schedule. Returns: top model recommendations, validated cron expression, pipeline steps, deployment notes, and cost estimate.

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.295 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.079 USDC per successful call via native x402. Discovery is free. Analyst rating change history (upgrades, downgrades, initiations) for any US stock. Returns each firm, action, from/to grade, and date — up to 365 days back. Computes net sentiment (upgrades minus downgrades): positive = bullish momentum building. Pairs with analyst-ratings (current consensus) and earnings-estimates (forward EPS). Yahoo Finance, no API key.

PAID MCP TOOL — $0.021 USDC per successful call via native x402. Discovery is free. iOS App Store competitive intelligence: search apps by keyword, look up a specific app's profile (ratings, freshness, install tier, release notes), or fetch top-charts for a category (finance, productivity, games, etc.). Free iTunes API, no auth required. Covers the App Store gap in the developer-ecosystem cluster alongside npm-trends, pypi-intel, and github-intel.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.213 USDC per successful call via native x402. Discovery is free. Transcribe MEDIUM-length audio (5-15 minutes) 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. For audio under 5 minutes use audio-transcribe-short (cheaper); for 15-30 minutes use audio-transcribe-long — this route rejects out-of-band audio before incurring transcription cost. Useful for meeting recordings, podcast snippets, and interview clips.

PAID MCP TOOL — $0.209 USDC per successful call via native x402. Discovery is free. Transcribe LONG audio (15-30 minutes) from any publicly accessible URL using OpenAI Whisper. Supports mp3, mp4, m4a, wav, webm, ogg, flac, and wma up to 24 MB and 30 minutes duration (whichever limit is hit first). Returns the full transcript text, detected language, and estimated duration in seconds. For audio under 15 minutes use audio-transcribe (5-15 min, cheaper) or audio-transcribe-short (0-5 min, cheaper still) — this route rejects out-of-band audio before incurring transcription cost. Useful for full podcast episodes and long-form recordings.

PAID MCP TOOL — $0.039 USDC per successful call via native x402. Discovery is free. Transcribe SHORT audio clips (0-5 minutes) 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. For audio longer than 5 minutes, use audio-transcribe (5-15 min) or audio-transcribe-long (15-30 min) instead — this route rejects out-of-band audio before incurring transcription cost. Useful for voice memos, short clips, and social media audio snippets.

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.021 USDC per successful call via native x402. Discovery is free. Before buying or holding a stock, check whether the issuer’s reported cash, debt and balance-sheet liquidity changed across its filings. Compare quarterly or annual cash, investments, assets, current liabilities, debt, equity, working capital and shares outstanding from issuer-filed SEC EDGAR XBRL facts. Source: official SEC Companyfacts API; no API key. For monitoring, pass known_latest_period_end to detect a newer reported period; missing raw filing facts remain null.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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. Uses public RPC data. $0.034/call.

PAID MCP TOOL — $0.40 USDC per successful call via native x402. Discovery is free. AI-synthesized bond and fixed-income market brief. Assembles 9 signals: Treasury yield curve (3M/5Y/10Y/30Y from Yahoo Finance CBOE indices), 2Y yield + 10Y TIPS real yield + 10Y breakeven inflation (FRED), and HY/IG credit spreads (FRED ICE BofA). Returns 2Y-10Y inversion signal, real rate environment, credit regime, composite rate_environment classification (RECESSION_RISK_HIGH/INVERTED_CURVE_NORMAL_CREDIT/TIGHT_FINANCIAL_CONDITIONS/ACCOMMODATIVE/NEUTRAL/etc.), and ~200-word GPT-4o-mini briefing covering discount rate implications and AI agent portfolio positioning.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.136 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.100 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.100 USDC per successful call via native x402. Discovery is free. 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 required. Pairs with btc-game-theory for full Bitcoin systems and incentive analysis.

PAID MCP TOOL — $0.025 USDC per successful call via native x402. Discovery is free. Stock capital allocation quality assessment for any US company. Returns ROIC (Return on Invested Capital), FCF yield, total shareholder yield (dividends + buybacks), CapEx intensity, and reinvestment rate. Synthesizes these into a letter grade (A–F) that answers: is management good at deploying the capital they generate? Designed to chain after equity-fundamentals and wacc-calculator to qualify management quality before setting DCF terminal growth assumptions.

PAID MCP TOOL — $0.021 USDC per successful call via native x402. Discovery is free. Full cash flow statement history for any US public stock — operating, investing, and financing sections. Returns: D&A, stock-based comp, working capital changes, operating CF, capex, acquisitions, investing CF, debt issuance/repayment, share buybacks, dividends paid, financing CF, free cash flow, beginning/ending cash, owner earnings (net income + D&A – capex), and cash conversion ratio. Quarterly default (up to 8 periods); annual returns up to 4 fiscal years. Completes the financial statement trilogy alongside income-statements and balance-sheet. Critical for FCF quality analysis, capital allocation review, and buyback/dividend tracking. Source: Yahoo Finance fundamentals timeseries (free, no API key required).

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. Real-time Coinbase order book depth and market microstructure for any crypto trading pair (BTC-USD, ETH-USD, SOL-USD, etc.). Returns best bid/ask spread, 24h price stats (high, low, volume, % change), top-N bids and asks with cumulative notional, order pressure ratio (bid vs ask volume), and the last 5 executed trades. Sourced direct from Coinbase Advanced Trade API — exchange-native, not CoinGecko aggregator delay. Ideal for pre-execution analysis, spread-cost estimation, and market timing.

PAID MCP TOOL — $0.117 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.023 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. Search ClinicalTrials.gov for clinical studies by condition, intervention, or keyword. Returns phase, status, enrollment, sponsor, and dates. NIH primary source — no markup. $0.034/call.

PAID MCP TOOL — $0.160 USDC per successful call via native x402. Discovery is free. 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. $0.160/call.

PAID MCP TOOL — $2.00 USDC per successful call via native x402. Discovery is free. Source-code security scan of a public GitHub repo. Runs semgrep SAST (p/security-audit rules: CWE coverage for injection, XSS, SQLi, path traversal, SSRF, auth bypass, deserialization, race conditions) + gitleaks secret detection (API keys, credentials, tokens). Returns structured findings with file/line/CWE/severity and any exposed secrets. authorized=true required — caller certifies ownership or written permission for the target repo. Typical execution: 20–90s depending on repo size. Powered by T3MP3ST arsenal.

PAID MCP TOOL — $0.160 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. 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). $0.059/call — Yahoo Finance free API, no key required.

PAID MCP TOOL — $0.358 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. 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 key required, always current).

PAID MCP TOOL — $0.590 USDC per successful call via native x402. Discovery is free. Entity-parametric company research in one call: live stock quote, quarterly income statements, and Wikipedia background. Optionally adds GitHub repo analysis and website intelligence when those inputs are provided. Parallel-safe for enriching lists of companies in distributed agentic pipelines. Replaces 3–5 individual cap calls; entity-parametric (one ticker per call).

PAID MCP TOOL — $0.213 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.117 USDC per successful call via native x402. Discovery is free. 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. $0.117/call.

PAID MCP TOOL — $0.370 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.165 USDC per successful call via native x402. Discovery is free. 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. $0.165/call.

PAID MCP TOOL — $0.136 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.021 USDC per successful call via native x402. Discovery is free. CFTC Commitment of Traders weekly positioning: large speculator (hedge fund) vs commercial hedger net long/short, week-over-week change, % of OI, 4-week trend, and a SPEC_LONG/SPEC_SHORT/NEUTRAL signal. Free CFTC source, updated Fridays.

PAID MCP TOOL — $0.059 USDC per successful call via native x402. Discovery is free. 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.

PAID MCP TOOL — $0.034 USDC per successful call via native x402. Discovery is free. 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.