The Stall
x402 capability chassis: 170+ AI-callable, pay-per-call data tools (US/global equities, crypto/DeFi, prediction markets, gov/legal, research, infra) settled in USDC on Base mainnet via the Coinbase CDP facilitator. No API keys or accounts — the x402 payment is the auth. Remote MCP at https://the-stall.intuitek.ai/mcp.
README
The Stall
Live x402 capability chassis — pay-per-call AI data services for USDC on Base mainnet.
Live endpoint:
https://the-stall.intuitek.aiMCP endpoint:/mcp— streamable HTTP, use POST Agent card:/.well-known/agent.jsonx402 discovery:/.well-known/x402Catalog:/catalogMCP registry:ai.intuitek.the-stall/the-stall
Current capabilities — 172 live tools (v4.27.0)
Full catalog at /catalog. Each capability is behind a per-call x402 paywall — no API keys, no accounts, no monthly fees. Pay USDC on Base mainnet per call.
| Capability | Price | Description |
|---|---|---|
address-security |
$0.007 | Wallet/address security and reputation check |
agent-access-check |
$0.006 | Checks whether a website is accessible and agent-friendly |
agent-kya-score |
$0.003 | Know Your Agent (KYA) trust score for any EVM wallet |
ai-image-gen |
$0.080 | Generate an AI image from a text prompt using DALL-E 3 |
air-quality |
$0.002 | Real-time US AQI and pollutant readings for any lat/lon |
analyst-ratings |
$0.010 | Wall Street analyst consensus and price targets for any US equity |
base-season |
$0.003 | 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 |
block-intel |
$0.002 | Returns block header data (number, hash, timestamp, gas used/limit, base fee, tx count, validator address) for any block on Base, Ethereum, or Arbitrum |
breadcrumb-extractor |
$0.003 | Extracts structured breadcrumb navigation from a URL |
btc-game-theory |
$0.006 | Bitcoin mining game theory and systems dynamics in one call |
btc-miner-econ |
$0.005 | Bitcoin mining economics and fee-market game theory via mempool |
btc-systems-theory |
$0.008 | Seven-lens systems theory analysis of the Bitcoin network |
chain-pulse |
$0.006 | Returns an Ethereum block header + current stablecoin depeg status in one call |
chromatic-dispersion |
$0.004 | Fiber optic chromatic dispersion calculator |
citation-formatter |
$0.008 | Looks up an academic paper by DOI and formats it as BibTeX, APA, MLA, or Chicago citation |
city-lookup |
$0.010 | Search airports and cities by keyword, IATA code, or city name |
classic-novels |
$0.004 | Looks up classic and contemporary books by title, author, or ISBN via Open Library (748M+ editions) |
clinical-trials |
$0.005 | Search ClinicalTrials |
code-api-surface |
$0.10 | Analyzes a code snippet and returns its API surface: HTTP routes (method + path), exported symbols, and middleware |
code-test-detector |
$0.005 | Detects testing frameworks and test coverage presence in a code snippet or GitHub repository |
commodity-futures |
$0.010 | Returns live price and intraday metrics for major commodity futures: crude oil, natural gas, gold, silver, copper, platinum, wheat, corn, soybeans, and coffee |
company-due-diligence |
$0.007 | AI-agent due diligence on any company |
company-intel |
$0.012 | Returns SEC EDGAR due diligence data for any US public company by ticker symbol: legal name, CIK, SIC industry code and description, state of incorpor |
concentration-risk-score |
$0.10 | 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) |
congressional-trades |
$0.022 | US Congressional stock trades (STOCK Act disclosures) |
consumer-brief |
$0.350 | AI-synthesized US consumer health briefing |
country-info |
$0.002 | Country information lookup by name, ISO code (alpha-2 or alpha-3), or capital city |
credit-spreads |
$0.008 | 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 |
crypto-fear-greed |
$0.005 | Crypto Fear & Greed Index — current score (0=extreme fear, 100=extreme greed), 7-day trend, 30-day min/max/avg, and trading regime signal |
crypto-fiat-price |
$0.015 | Cryptocurrency price in any fiat currency — JPY, EUR, CNY, GBP, KRW, INR, AUD, BRL, or 80+ more |
crypto-news-impact |
$0.008 | Latest cryptocurrency news headlines from CoinDesk with live price correlation for mentioned assets |
crypto-pulse |
$0.007 | Crypto market pulse — latest Ethereum (or Base) block context plus top crypto gainers and losers by 24h change, in a single call |
crypto-top-movers |
$0.008 | 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 th |
db-perf-intel |
$0.003 | Database performance intelligence: current versions, EOL status, and benchmark-grounded performance profiles for PostgreSQL, MySQL, MariaDB, MongoDB, |
defi-market-pulse |
$0.006 | Combined DeFi yield intelligence and market momentum in one call — 33% cheaper than separate yield-farming-active + market-movers calls ($0 |
defi-portfolio |
$0.007 | Multi-chain DeFi portfolio scanner |
defi-state-pack |
$0.008 | Returns Ethereum block header + stablecoin depeg status + top DeFi yield farming pools in one call |
defi-yields |
$0.025 | Returns top DeFi yield pools ranked by APY from DeFiLlama |
dex-pair-search |
$0.005 | Search DEX trading pairs for any token (by symbol, name, or contract address) across 50+ chains including Ethereum, Solana, Base, BSC, Arbitrum, Polygon, and Avalanche |
dex-swap-quote |
$0.012 | Best-route DEX swap quote across 20+ chains via Li |
dex-trending-pools |
$0.015 | Trending DEX liquidity pools with buy/sell pressure data across multiple timeframes (5m, 1h, 6h, 24h) |
dividend-calendar |
$0.008 | Upcoming dividend ex-dates from NASDAQ — all stocks going ex-dividend on a given date (default: today) or in the next 1–7 days |
dividend-intel |
$0.015 | Full dividend intelligence for any US equity: trailing 12-month yield, forward annual rate, payout frequency (monthly/quarterly/semi-annual/annual), 5 |
dns-lookup |
$0.003 | DNS record lookup for any domain via Cloudflare DoH |
document-qa-prep |
$0.005 | Prepares a document for question-answering and RAG pipelines |
domain-whois |
$0.006 | Domain WHOIS/RDAP lookup |
drug-intel |
$0.008 | FDA drug intelligence: labeling (warnings, dosage, drug interactions, contraindications, indications), adverse event report summary (top reactions + total count), and recent recall history |
earnings-calendar |
$0.005 | Upcoming US stock earnings — report date, EPS estimate, pre/post-market timing |
earnings-surprises |
$0.010 | Historical EPS beat/miss data for any US equity: actual EPS, consensus estimate, surprise %, beat rate, estimate revisions (30-day EPS drift), and next earnings date |
earthquake-intel |
$0.005 | Real-time earthquake intelligence from USGS |
economic-calendar |
$0.010 | Upcoming US macro data release schedule: CPI, NFP, FOMC, GDP, PCE, PPI, JOLTS, Retail Sales, Housing Starts, and 20+ more releases with exact dates, times (ET), and market-impact priority |
email-verify |
$0.006 | Email address validation and quality scoring |
energy-brief |
$0.350 | AI-synthesized US energy market situation briefing |
ens-lookup |
$0.004 | ENS name ↔ Ethereum address resolution |
equity-brief |
$0.350 | AI-synthesized equity situation brief for any US stock |
equity-fundamentals |
$0.015 | Fundamental valuation metrics for any US public company — P/E TTM, forward P/E, PEG, P/B, EV/EBITDA, margins, ROE, ROA, revenue TTM, earnings/revenue growth, free cash flow, market cap, beta |
equity-sentiment |
$0.015 | Equity market Fear & Greed composite |
equity-technicals |
$0.49 | Returns a complete technical analysis package for any US stock: RSI(14) with oversold/overbought signal, MACD(12/26/9) with histogram, Bollinger Bands |
erc20-snapshot |
$0.007 | Complete ERC20 token state in one call: name, symbol, decimals, total supply (raw + formatted), wallet balance, and allowance |
etf-holdings |
$0.018 | Top holdings, sector weights, and asset allocation for any US ETF (SPY, VOO, QQQ, AGG, XLK, etc |
eth-block |
$0.002 | Returns an Ethereum block header and transaction hashes by block number, hex string, or tag (latest/pending/earliest/safe/finalized) |
evm-log-events |
$0.004 | Query EVM contract event logs via eth_getLogs |
evm-nonce |
$0.002 | Returns the current nonce (confirmed transaction count) and pending nonce for any EVM wallet address |
evm-token-security |
$0.007 | Honeypot, rug-pull, and scam detection for any EVM token |
fact-check |
$0.500 | AI-powered claim verification |
fda-recall-watch |
$0.008 | FDA recall and enforcement search across drugs, food/cosmetics, and medical devices (85,000+ actions) |
fec-donor-intel |
$0.008 | FEC campaign finance lookup — search all US federal political donations by individual or organization name |
federal-contract-intel |
$0.008 | US federal contract and grant intelligence for any company via USASpending |
flight-tracker |
$0.008 | Recent departures or arrivals at any major airport via OpenSky Network (free, crowd-sourced ADS-B) |
fomc-tracker |
$0.008 | US Federal Funds Rate, next FOMC meeting date + countdown, rate trend (hiking/holding/cutting), and full 2026 schedule |
forex-rates |
$0.005 | Real-time fiat foreign exchange rates |
funding-rates |
$0.020 | Returns current perpetual funding rates for 200+ assets on Hyperliquid DEX, sorted by absolute funding magnitude |
gas-estimate |
$0.003 | Multi-chain gas price oracle: fast/standard/slow Gwei + USD cost for a transfer |
gas-prices |
$0.005 | Current gas prices and EIP-1559 fee recommendations across 6 major EVM chains: Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain |
generate-meme |
$0.005 | Generates a meme image from 211 built-in templates |
geocode |
$0.003 | Forward and reverse geocoding via OpenStreetMap Nominatim |
github-repo-intel |
$0.010 | GitHub repository intelligence: stars, forks, open issues, language, license, last push date, latest release version and date, topics, and whether the repo is actively maintained |
global-equity-indices |
$0.010 | Global equity snapshot: 9 major indices (Nikkei 225, Hang Seng, ASX 200, Nifty 50, Shanghai, FTSE 100, DAX, CAC 40, Euro Stoxx 50) plus DXY |
gov-votes |
$0.004 | US Congressional vote records from official government XML sources (senate |
hedge-fund-holdings |
$0.025 | Returns top stock holdings from any institution's latest SEC 13F filing |
hf-model-search |
$0.002 | Search HuggingFace Hub for ML models |
hn-search |
$0.010 | Hacker News story and comment search via Algolia |
housing-brief |
$0.350 | AI-synthesized US housing market briefing |
http-headers |
$0.003 | HTTP response headers inspector and security grader |
image-detect |
$0.040 | Detects the true image format of any URL via magic byte inspection — works even when the file extension or Content-Type header lies (common with proxied or CDN-hosted images) |
imf-country-outlook |
$0.006 | IMF World Economic Outlook forecasts — current year + 3-year horizon for 180+ countries |
insider-trades |
$0.012 | Recent SEC Form 4 insider trading activity for any US public company |
intel-pack |
$0.15 | Three-source intelligence pack in one x402 call: equity market snapshot (SPY/QQQ/IWM/VIX/risk signal) + top DeFi yield pools by APY + top prediction markets by volume |
ip-intel |
$0.003 | Geolocation and network intelligence for IP addresses or domain names |
ipo-calendar |
$0.020 | Returns live IPO calendar from Nasdaq — upcoming deals with expected pricing dates, recently priced offerings, new S-1 filings, and withdrawn deals |
job-search |
$1.500 | Search remote and hybrid job listings by keyword and location |
json-extract |
$0.004 | Extracts and parses JSON from mixed-content text |
kimchi-premium |
$0.001 | Real-time Kimchi Premium for any Upbit-listed token: KRW price on Upbit vs USD price on global exchange (Kraken/OKX), FX-adjusted |
korean-crypto-movers |
$0.008 | Top movers and volume leaders on Korean exchanges (Upbit, 263 KRW markets) |
korean-market-movers |
$0.010 | Real-time movers and volume-spike leaders across all KRW-denominated markets on Upbit (South Korea's largest crypto exchange) |
labor-brief |
$0.350 | AI-synthesized US labor market briefing |
labor-market |
$0.008 | Returns US labor market leading indicators from FRED (free, no API key): initial jobless claims (weekly), continued claims, JOLTS job openings, nonfar |
lbo-model |
$4.50 | Full LBO model: sources & uses, year-by-year operating model, debt schedule with cash sweep, IRR and MOIC, plus 3×3 entry/exit sensitivity tables |
legal-search |
$0.008 | Searches 5M+ US court opinions (SCOTUS, federal circuits, district courts, state courts) via CourtListener |
limitless-markets |
$0.006 | Returns active prediction markets from Limitless Exchange with current Yes/No probabilities |
macro-brief |
$0.350 | AI-synthesized US macroeconomic situation briefing |
macro-indicators |
$0.008 | Returns current US macroeconomic indicators: Fed Funds Rate, CPI (with year-over-year inflation %), Unemployment Rate, and Real GDP |
manufacturing-brief |
$0.350 | AI-synthesized US manufacturing & industrial sector briefing |
market-intelligence |
$0.50 | Returns settlement-verified x402 endpoint intelligence |
market-movers |
$0.004 | Today's top market movers — equity gainers, losers, most-active, and crypto gainers/losers by 24h change |
market-overview |
$0.10 | Single-call market snapshot: SPY, QQQ, IWM, and DIA price + intraday % change, VIX fear gauge, 10-year Treasury yield (^TNX), and a derived risk-postu |
market-sentiment |
$0.015 | Combined crypto market sentiment signal: Crypto Fear & Greed Index (alternative |
meme-generator |
$0.005 | Generate a meme image URL from text |
news-sentiment |
$0.004 | Returns global news coverage and sentiment for any company, stock ticker, or topic |
nft-metadata |
$0.002 | Fetch NFT metadata, traits, image URL, and collection floor price for any ERC-721 or ERC-1155 token |
npi-lookup |
$0.004 | US NPI registry lookup — find any licensed US healthcare provider or organization by NPI number, name, state, or specialty |
npm-lookup |
$0.007 | Node |
options-chain |
$0.010 | CBOE delayed options chain for any US equity or index — returns stock price, per-contract IV, greeks (delta/gamma/theta/vega), OI, volume, and bid/ask |
options-snapshot |
$0.015 | Options intelligence snapshot for any US equity — IV30, put/call volume ratio, top calls and puts by trading volume, and unusual-volume flags |
page-intel |
$0.004 | Extracts structured content from any public URL: page title, meta description, H1-H3 headings, all links (with text and internal/external flag), and a 500-character text preview |
page-links |
$0.004 | Extracts all hyperlinks from a webpage |
ping |
$0.001 | Liveness + echo probe |
place-details |
$0.020 | Enriched place and business details by name (OSM Nominatim) |
policy-impact-mapper |
$0.007 | Analyzes regulatory and policy text to map its impact across industry sectors |
polymarket-accuracy-score |
$0.004 | Historical Polymarket crowd accuracy score: % of markets where the final crowd majority correctly predicted the outcome, plus Brier score (calibration quality) |
polymarket-category-performance |
$0.004 | Polymarket category activity breakdown: volume, liquidity, market count, and top market per category (crypto, politics, sports, ai, macro, equities) |
polymarket-sentiment-shift |
$0.008 | Returns Polymarket prediction markets with the biggest recent probability shifts — useful for detecting sudden consensus changes on elections, crypto prices, and macro outcomes |
portfolio-rebalance |
$0.005 | Pure-math portfolio rebalancing calculator |
prediction-markets |
$0.05 | Returns top active Polymarket prediction markets sorted by trading volume |
prediction-stock-pulse |
$0.016 | One call returns prediction market sentiment (Limitless Exchange) + live equity price for a specified ticker |
protocol-revenue-leaders |
$0.001 | Returns DeFi protocols ranked by daily fees (revenue generated) |
pypi-lookup |
$0.007 | Python package metadata from PyPI |
readable-content |
$0.004 | Fetches any public URL and returns the full readable article text as clean Markdown, stripped of navigation, ads, and boilerplate |
reddit-intel |
$0.012 | Searches Reddit posts and/or comments by keyword |
regex-tester |
$0.003 | Safe regex testing and extraction |
research-paper-search |
$0.003 | Academic paper search across 250M+ works via OpenAlex (free, no key) |
research-synthesis |
$0.200 | AI-synthesized intelligence report for any query — aggregates Hacker News, OpenAlex academic papers, Reddit, arXiv preprints, and DuckDuckGo in parall |
roast |
$0.040 | Witty AI roast of any target — person, company, product, code snippet, or concept |
rss-reader |
$0.004 | Fetches and parses any public RSS 2 |
sanctions-screening |
$0.005 | OFAC SDN sanctions screening — checks whether a person, company, vessel, or aircraft appears on the US Treasury Specially Designated Nationals list |
sec-filing-intel |
$0.015 | Real-time SEC EDGAR filing lookup by ticker or CIK |
sec-insider-trades |
$0.008 | SEC EDGAR Form 4 insider trading data for any US public company — shows recent insider buys, sells, awards, and exercises with shares, price, and post-transaction ownership |
sector-rotation |
$0.020 | S&P 500 sector rotation: relative performance of all 11 GICS sectors (XLK XLF XLE XLV XLI XLY XLP XLB XLRE XLU XLC) vs SPY benchmark |
short-volume-intel |
$0.012 | Daily FINRA consolidated short-sale volume for any US equity ticker: short volume, total volume, and short ratio (short/total) for the last N trading days |
social-intel |
$0.004 | Returns public profile data for any social platform account |
solana-token-risk |
$0.35 | Rug-pull and risk scanner for Solana SPL tokens |
solana-tx-explainer |
$0.07 | Given a Solana transaction signature, returns a decoded breakdown: fee payer, programs invoked (Jupiter, Raydium, Pump.fun, SPL Token, etc.), SPL toke |
solar-intel |
$0.020 | Solar irradiance analysis and 7-day forecast for any location |
sports-prediction |
$0.005 | Returns today's (or a given date's) sports games with team win-loss records, venue, scheduled time, and live score |
sports-scores |
$0.004 | Live and recent sports scores for NBA, NFL, MLB, NHL, MLS, EPL, La Liga, Bundesliga, Serie A, Champions League, and more |
ssl-cert |
$0.004 | Inspects the TLS/SSL certificate of any HTTPS host |
stablecoin-watch |
$0.05 | Real-time depeg monitor for top USD stablecoins (USDT, USDC, DAI, USDS, and others ranked by market cap) |
stock-brief |
$0.015 | US equity snapshot + Limitless prediction market sentiment in one call |
stock-ohlcv |
$0.010 | Returns historical OHLCV (open/high/low/close/volume) candlestick data for a stock, ETF, or index |
stock-price-multi |
$0.018 | Returns current US equity prices for up to 5 tickers in one call — STRC, AMD, MSTR, SLV, USO, or any NYSE/NASDAQ symbol |
strategy-signal |
$0.090 | Technical analysis signal for any US equity, ETF, or crypto |
timezone |
$0.002 | Timezone intelligence using the IANA database (418 zones) built into Node |
token-top-holders |
$0.015 | Returns top holders for any Ethereum ERC-20 token (by contract address), with concentration metrics |
treasury-auction-calendar |
$0.018 | Returns upcoming US Treasury auction schedule (Bills, Notes, Bonds, TIPS, FRNs) from TreasuryDirect |
treasury-yields |
$0.008 | Returns current US Treasury yield curve at 3M, 5Y, 10Y, and 30Y nodes from CBOE interest-rate indices (free, no API key) |
tx-explainer |
$0.014 | Given a transaction hash and chain, returns a decoded breakdown: sender, recipient, ETH value transferred, gas used, transaction fee, decoded method n |
tx-intel |
$0.006 | Decode and explain any EVM transaction — in one x402 payment |
unit-converter |
$0.002 | Converts between 100+ units across 12 categories: length, weight, temperature, volume, speed, area, energy, pressure, data, time, angle, frequency |
us-stock-price |
$0.018 | Returns current US equity price and intraday metrics (change %, volume, day high/low, 52-week range) for any NYSE/NASDAQ ticker |
usgs-earthquake |
$0.002 | Real-time global earthquake events from USGS |
wallet-balance |
$0.002 | Returns the native token balance (ETH, POL, BNB) for any EVM wallet address |
wallet-credit-score |
$0.020 | Composite credit score (0–100) for any EVM wallet |
wallet-screener |
$0.010 | Risk screening for EVM wallet addresses |
weather |
$0.007 | Current weather conditions and 7-day daily forecast for any location worldwide |
weather-alerts |
$0.003 | Active NOAA weather alerts for any US state — tornado warnings, flash flood watches, hurricane warnings, blizzard advisories, heat alerts, and 80+ other NWS event types |
web-change-monitor |
$0.005 | Returns content-change signals for any public URL: ETag, Last-Modified, Content-Length, and Content-Type via HTTP HEAD |
web-company-intel |
$0.003 | Extract structured company intelligence from any public website |
web-scrape-links |
$0.004 | Extracts all hyperlinks from any public webpage |
whale-radar |
$0.003 | Polymarket whale intelligence for a given proxy wallet address |
world-bank-data |
$0.003 | World Bank open data — 1600+ development indicators for 200+ countries |
x402-endpoint-intel |
$0.020 | Market intelligence for any x402 endpoint or operator wallet |
yield-farming-active |
$0.005 | Returns active DeFi yield farming pools sorted by 30-day average APY |
Quick call (x402 flow)
# 1. GET the endpoint — server returns HTTP 402 with payment challenge
curl https://the-stall.intuitek.ai/cap/us-stock-price?ticker=AAPL
# → 402 {"x402Version":"1","accepts":[{"network":"base","asset":"USDC","maxAmountRequired":"30000","paymentRequirements":{...}}]}
# 2. Pay in USDC on Base via the x402 facilitator
# 3. Retry the request with the X-PAYMENT header — server returns data
See the x402 protocol spec for client SDKs (TypeScript, Python) that handle steps 2-3 automatically.
MCP (streamable HTTP)
{
"mcpServers": {
"the-stall": {
"type": "streamable-http",
"url": "https://the-stall.intuitek.ai/mcp"
}
}
}
Architecture
A domain-agnostic x402 capability chassis + a four-stream flow observer (PROSPECTOR) that decides what capability to put in it. Built as the answer to one question: where is the way into the agentic economy that a solo operator can actually take, given that the giants now own the rail?
The architecture decision
The giants (Coinbase, Stripe, AWS, Visa, the x402 Foundation) own the rail — settlement, wallets, the discovery index. That seat is taken; don't fight for it. A marketplace owner needs stalls filled — their revenue is the rail toll, not the merchandise. The endpoint layer is open by design: listing is free, a service is auto-cataloged on first settled payment.
So this splits into two parts:
| The Stall | PROSPECTOR | |
|---|---|---|
| is | infra — a reusable paid endpoint | a persona + a flow observer |
| owns | x402 wiring, payment, schemas | the doctrine + the archive |
| changes | almost never | every scan cycle |
| answers | "how does an agent pay me" | "what will an agent pay me for, where the seat is open" |
PROSPECTOR v0.4 — what the flow observer does
v0.4 retires catalog scanning as the primary scout (v0.1/v0.2 keyword counters bottomed out — at 2k depth every bucket was contested, catalog is 40k+ anyway). The seat doesn't live in the catalog; it lives in the flows between endpoints.
Five streams write into a SQLite archive (archive.db), four analyses read it:
| Stream | Auth | What it gives |
|---|---|---|
bazaar |
none | every Bazaar endpoint with first-seen/last-seen → new-endpoint feed |
base_rpc |
none | live x402 settlements from Base mainnet via public RPC — payer/recipient/amount per EIP-3009 event |
cloudflare |
CF_API_TOKEN |
AI-bot traffic share by user-agent and AS → school identity |
dune |
DUNE_API_KEY + query IDs |
SQL-side aggregation convenience over the same on-chain data (optional) |
x402scan |
X402SCAN_API_URL |
settlement feed if x402scan publishes a public API (placeholder; none as of 2026-05) |
base_rpc removes the auth wall for settlement-level signal. Public Base RPC + the USDC contract's public AuthorizationUsed events cover every x402 settlement on Base with no credentials.
| Analysis | Hook | v0.4 status |
|---|---|---|
growth |
category emergence — list adjacent under convergence price | partial without history |
seam |
collapse a 2-3-endpoint chain, price at 70% of summed | unlocked by base_rpc |
convergence |
ship the narrow version agents converged on | unlocked by accruing base_rpc over time |
concentration |
better latency/price/schema, surfaced to the dependent cluster | (a) few-payers: unlocked; (b) cluster-dominant: gated |
First end-to-end run with base_rpc: 1,222 real settlements pulled in 2.6s, 4 honest concentration signals emitted including one 100%-strength dependency (106 settlements from 2 distinct wallets). All from public data, no auth.
The archive thesis (the second timeline)
The same archive.db that drives near-term hook detection is also Schema #3
of a long-term thesis: settlement + identity claim + mandate, joined.
Litigators, regulators, and insurers will need this join; nobody else is
keeping it as a unified record right now. One build, two timelines.
Layout
the-stall/
RUN_ME.sh self-documenting setup + boot
src/
server.js the chassis: loads caps, paywalls them, serves free /catalog
payment.js the ONLY file touching x402 wiring (isolated for protocol churn)
registry.js auto-loads + validates drop-in capability modules
capabilities/
_TEMPLATE.js the contract: copy → fill → it goes live next deploy
ping.js liveness probe
us-stock-price.js US equity price + intraday metrics (Yahoo Finance)
defi-portfolio.js multi-chain wallet scanner (ETH/Base/Polygon/Arb)
... 168 more capability modules (see /catalog)
Quickstart (self-hosted)
./RUN_ME.sh # installs, scaffolds .env, optionally boots on testnet
npm run scan # PROSPECTOR scout: pulls streams, runs analyses, prints seat report
npm start # boot the stall (base-sepolia by default = $0 risk)
curl localhost:4021/catalog
Stream 3 (Bazaar) runs every scout cycle with no setup. To unlock seam + convergence + concentration signals, provision either Dune (free tier) or x402scan.
Two gates before live USDC (if self-hosting)
- Wallet ownership.
WALLET_ADDRESSmust be a verified-owned Base address. - Source ToS / licensing. Any data- or market-intelligence capability inherits the terms of its source.
Deploy (Railway)
Standard Node service. Set env vars (WALLET_ADDRESS, X402_NETWORK=base,
FACILITATOR_URL=<CDP facilitator>, PORT), point at npm start. Keep the
archive.db volume persistent across deploys (it's the asset).
Status
- [x] Chassis boots, loads capabilities, paywalls them, serves free introspection
- [x] PROSPECTOR v0.4 — five-stream flow observer + SQLite archive + four analysis modules
- [x]
base_rpcstream: no-auth on-chain settlement reader (Base public RPC) - [x] Concentration (few-payers path) producing real signals from live mainnet
- [x] Wallet ownership verified (GATE 1) — Base mainnet, EIP-191 signature recovered
- [x] 172 capabilities LIVE at
https://the-stall.intuitek.ai(Base mainnet, v4.27.0) - [x] MCP endpoint at
/mcp(streamable-http, acceptsapplication/json) - [x] A2A Agent Card at
/.well-known/agent.json - [x] x402 discovery document at
/.well-known/x402 - [x] Official MCP registry:
ai.intuitek.the-stall/the-stall - [x] Payment logging (JSONL) — every settled call recorded
- [x] First settled call → x402 Bazaar seeded (block 46944973, Base mainnet, 2026-06-05)
- [x] PROSPECTOR scout wired to heartbeat cadence (v0.4, 3.7M+ settlements archived)
- [x] Listed on Glama
Built by IntuiTek¹ — autonomous infrastructure for the agentic economy.
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