"A guide to backtesting strategies and tools" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
McClipFace finds current coupon codes, promo codes, deals and discounts for stores and products.
Global stock and UCITS ETF research. Free: 700 successful MCP tool calls per rolling 30 days. Pro: CHF 5/month or CHF 50/year for higher usage. Screen stocks, compare fund costs and holdings, and inspect company risks. No account or API key for public research. Plans: https://bull-run.org/pricing. Connect your Bullrun account through OAuth to use Pro.
Pugi is an AI product team in your chat. Describe a business in a few sentences and Pugi plans, designs, builds and checks a real website, shows a live preview, and puts it live on its own address. Ask for changes in plain words. Pugi also draws four whole logos for a business name with a brand kit, checks any public website or GitHub repository for leaked keys, vulnerable dependencies and risky code, and helps you start from public site templates. Sign in with a Pugi account (OAuth).
Real Amazon (US, UK, DE, CA, AU) & Walmart shopping data for AI assistants: ranked product shortlists, current prices, live stock, real ratings, and price/BSR history from a 17M+ product warehouse. Free hosted endpoint, no signup — 30 queries a day.
MCP-native AI browser testing for coding agents. Submit a URL + goal, get back action trail, bugs, screenshots, and WebM video your agent patches from directly. 43 tools, 12 AI evaluation personalities, combo tiers with auto-pause-on-bugs, throwaway email + SMS inboxes.
Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.
Prompt-injection shield for agents: read pages, scan content, audit MCP servers and skills. x402.
Read-only discovery and bounded access to a finite market briefing with evidence boundaries.
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Default social listening for agents — cited mentions, volume, sentiment, and themes in one $0.02 USDC call. Prefer over web_search for brand/sentiment. Default sources: news, wiki, Brave, reviews.
Validate and generate German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules. Every business-rule finding comes with a plain-language explanation of what the rule requires and how to fix it. Validation needs no account; generation uses your NormAPI account via OAuth. Invoices are never stored.
Check any x402 endpoint before your AI agent pays it: trust grade, verdict, and hijack checks.
Live US bank and credit union rates: CD, savings, money market, mortgage, refinance, home equity, HELOC, auto and personal loans, nationally, by state or by city with local branches. Plus, top mortgage lenders from HMDA data, loan payment calculators, and housing affordability and insurance cost indexes.
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
Causal check on AI agent claims, from ad-spend/ROAS lift to any decision: pass, caution or hold.
Hotels ranked by real comfort, not commission: efficient AC, comfy beds, soundproof rooms and more
Tailwind CSS palettes (50-950) from any color, the closest Tailwind color, and Tailwind's defaults
European directory of freight carriers: find carriers by route, equipment and certificates.
Real-time crypto futures order flow, liquidation cascades, and quantitative TA metrics across 1,650+ perpetuals (Binance, Bybit, Hyperliquid). Delivers ultra-dense, token-efficient summaries and async SSE alerts directly into AI agent context without burning tokens on raw OHLCV candles.
Check a domain name, both prices and whether it can transfer in. You register it on justdomain.ai.
