"Search functionality without API key requirement" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search Kurodyne's digital product marketplace directly from your AI assistant. Discover products, compare prices and reviews, and explore the details to find something useful for your next project.
Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.
Stocks, ETFs, crypto, commodities, forex: quotes, fundamentals, SEC filings, point-in-time history.
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.
Read-only RS3 GE guide prices/history, optional reported buy/sell trades, buy-limit/alchemy facts, flip math and public hiscores. Search Wiki sources, list category members, and read structured monster/quest/drop facts. Guide prices lag activity; trades are not executable offers. Wiki article text requires reviewed revisions; other pages return links. Streamable HTTP; no account or API key. Independent Birdwell Labs project, unaffiliated with Jagex or the RuneScape Wiki.
Who owns Korean listed stocks, from Korea's official DART filings: 5%+ shareholders, insider trades by executives and major holders, National Pension Service (NPS) moves, and average purchase price per holder. Covers 4,000+ KOSPI/KOSDAQ companies, updated daily. Read-only, no API key.
An open MCP server for the Portuguese housing market, run by flatin.pt. No API key, no registration, no rate-limit negotiation. Twelve tools: • imt_calculate — IMT and Imposto do Selo on a purchase, 2026 tables, including the reduced table, the relief for buyers aged 35 or under and the flat rate for non-residents • imi_rate / imi_annual_cost — the IMI rate of any of the 308 municipalities for 2023–2025, and the annual bill for a given VPT • construction_barometer — how many building-permit cases enter a town hall each month (our own indicator: monthly for three municipalities, annual for eight, method and revision policy published) • search_newbuilds / get_newbuild — 250 new developments, 53 municipalities, 71 developers, with stage and, where published, price • where_to_live / municipality_stats / compare_municipalities — municipal comparisons • glossary_lookup — Portuguese property and tax terms • request_consultation / subscribe_digest — reaching a human The data behind the tax tools is published as open data under CC BY 4.0 on the Portuguese national portal (dados.gov.pt) and archived on Zenodo with a permanent DOI. Anyone may reuse it. Humans, not bots, answer the people who get in touch: a home purchase involves personal data under the GDPR and decisions that cannot be refunded.
Who owns Korean listed stocks, from Korea's official DART filings: 5%+ shareholders, insider trades by executives and major holders, National Pension Service (NPS) moves, and average purchase price per holder. Covers 4,000+ KOSPI/KOSDAQ companies, updated daily. Read-only, no API key.
Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.
Place and inspect orders on your own exchange accounts from an MCP-connected agent.
Timefire's public record of AI stock forecasts: graded books, track record and proof.
Savvly MCP: query fund data, model projections, and compare against alternative retirement products.
Calculates German lawyers' fees under the RVG with the ONYST fee engine: fees, expenses and VAT with fee number, rate and calculation, values in dispute, and invoices for law firms in Germany. Sign in with an ONYST account. Results are a calculation, not legal advice.
200+ x402 APIs for AI agents: official statistics, crypto prices, compliance and web tools.
Perp funding rates, open interest, futures basis, IV, liquidations, order books on 8 exchanges
Official statistics and economic data for agents, with source and licence per answer. No key.
Peppol e-invoicing API for developers. Without an account: plan your integration, search the docs, check a test invoice against the Peppol rules and look up a Peppol receiver. With a free account: send sandbox test invoices and follow their delivery. Sandbox only.
The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.
Let your AI agent pay for APIs and data without handing it your money. In ChatGPT, Claude or Grok, the agent finds paid x402 APIs (with each seller's payout record from x402 Doctor) and asks to pay; you approve and sign each payment in your own wallet: MetaMask or Coinbase Wallet (USDC on Base), Phantom (USDC on Solana) or Xaman (RLUSD on the XRP Ledger). Fizzl checks every payment before you sign and every paid answer for hidden instructions. Fizzl never holds your keys. Free to start.
Manufacturing cost of CNC and sheet-metal parts from STEP or DXF: process plan, times, 10 lot sizes.
Money, FX, capital-market and metadata-only China macro evidence with source clocks and limits.
Onchain DeFi intelligence API for Base, payable per call with x402 (USDC). Live MCP tools: get_bot_status (Telegram bot health), get_market_stats (market snapshot), get_onchain_sales (proven revenue from live x402 routes). Built for agents that need verifiable onchain data — whale flow, signals, and sales evidence at $0.005/call.
SnelStart MCP server for ChatGPT, Claude and any AI agent: create sales invoice, add relation, book entry, list open items and upload document in your own SnelStart account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to SnelStart yourself; Cotlet does not store your password and you need no SnelStart API key. About the official SnelStart API: Yes, but it is gated (checked 14 Oct 2026). SnelStart has a B2B API for software partners: you request a connection, get a development key and portal access, and a production integration for several users needs certification, OAuth, a webhook URL and at least five named customers. Setup and FAQ: https://cotlet.dev/integrations/snelstart-api-mcp-server
Knowify MCP server for ChatGPT, Claude and any AI agent: create job, create bid, create invoice, log time and get job cost report in your own Knowify account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Knowify yourself; Cotlet does not store your password and you need no Knowify API key. About the official Knowify API: Knowify has no public REST API (checked 11 Oct 2026). Its official AI Connector (MCP) lets users with admin permissions ask questions about jobs, billing, labor and collections, and is read-only for now. Setup and FAQ: https://cotlet.dev/integrations/knowify-api-mcp-server
iFirma MCP server for ChatGPT, Claude and any AI agent: issue invoice, send invoice, send to KSeF, add cost and list unpaid invoices in your own iFirma account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to iFirma yourself; Cotlet does not store your password and you need no iFirma API key. About the official iFirma API: Yes. iFirma has a documented JSON API that issues invoices, lists them, records payments, sends them by email and to KSeF, and adds cost documents (checked 14 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/ifirma-api-mcp-server
Chat with AI models, web search, page reading and market data, inside owner-set key limits (USDC).
Expensify MCP server for ChatGPT, Claude and any AI agent: create expense, attach receipt, create report, submit report and approve report in your own Expensify account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Expensify yourself; Cotlet does not store your password and you need no Expensify API key. About the official Expensify API: Yes, but it is narrow (checked 14 Oct 2026). Expensify's Integration Server API creates expenses, creates reports (domain and policy admins, after enablement) and exports reports, with credentials you generate yourself. Setup and FAQ: https://cotlet.dev/integrations/expensify-api-mcp-server
Dext MCP server for ChatGPT, Claude and any AI agent: upload receipt, list items to review, edit extracted data, publish to ledger and export costs in your own Dext account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Dext yourself; Cotlet does not store your password and you need no Dext API key. About the official Dext API: Dext has no public developer API and no API docs on dext.com, and no official MCP server (checked 14 Oct 2026). The only official connection is the Zapier app, with 3 triggers and 4 actions: it submits receipts and sales invoices, reads processed receipts and creates client accounts. Setup and FAQ: https://cotlet.dev/integrations/dext-api-mcp-server
Turkey data API for AI agents: 40 tools + search/call for 230+ endpoints. Addresses (provinces, districts, postal codes, boundaries), validation (IBAN, tax ID/VKN, TCKN, phone, barcode), tax and salary calculators, Official Gazette, exchange rates, gold, crypto, economic indicators, prayer times, holidays and business days, weather, air quality, earthquakes, dam levels, fuel prices, EV charging, power outages, tolls, pharmacies on duty, football standings. Turkish JSON, free plan.
Search and read the Goldsky documentation from any MCP client. Goldsky provides onchain data infrastructure on 150+ chains, including Ethereum, Base, Solana, Hyperliquid, and Elysium: - Edge RPC: managed JSON-RPC. - Feeds: REST APIs for wallet balances, transfers, and token prices with USD values, plus Polymarket and chain datasets. - Subgraphs and Turbo pipelines: index and stream onchain data. Pay per request over x402 with USDC and no account, or use an API key.
