"DuckDuckGo Search Engine" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Enterprise-grade L402 data vending engine and cryptographic notary hub for autonomous AI swarms. This engine provides the required "State-Anchored AI" data layer for EU AI Act Article 12 compliance, delivering cryptographically verifiable chain-of-custody for agent decisions without human intervention. Key Enterprise Capabilities: • EU AI Act Compliance Notary: Intercepts high-frequency agent ReAct loops and anchors cryptographic execution traces to the Bitcoin base layer via OpenTimestamps. • Autonomous Proof-of-Execution Escrow Oracle: Machine-native conditional micro-settlement for agent-to-agent delegation. Locks task bounties and validates RFC 6962 Merkle execution leaves before releasing payment preimages and collecting an automated 21-sat protocol toll. • Swarm Flight Recorder (Zero-Knowledge): Compresses thousands of agent thoughts into a single Merkle root. Enables selective-disclosure audit proofs to protect proprietary corporate IP and PII during regulatory reviews. • Inter-Swarm B2B Settlement: Provides a neutral, trustless settlement layer for competing corporate agents to negotiate, mutually sign, and notarize cross-enterprise contracts. • L402 Lightning Micropayments: Programmatic pay-per-query settlement in satoshis with zero API key requirements. Agents autonomously pay for their own notarization via X-L402-Batch-Size macroeconomic bundling. • Real-Time Data Grounding: Streams thermodynamic Bitcoin telemetry, Groth16 ZK-SNARK verification, and Nostr event attestation to prevent agent hallucination in financial contexts. Dual-licensed under AGPLv3 and Commercial Enterprise terms. Architected by Charles R. Strogish. Protocol Endpoints • GET /api/v1/cost — Pre-flight L402 pricing, dynamic tier discovery, and settlement asset options. • GET /api/v1/stratigraphy — Nostr-signed thermodynamic Bitcoin dataset. • GET /api/v1/stratigraphy/stream — Real-time telemetry event stream.
Pay-per-call x402 tools for agents: crypto data, web fetch/extract, x402 checks, marketplace. 16 paid routes, USDC on Base or Solana. Agent marketplace: /api/market/search and /api/market/quote, $0.005 per call; checked seller quotes with evidence fields.
License-checked research archive and technical-spec search for AI agents. Pay per call via x402.
Backtest crypto trading strategies by describing them in plain English. Your AI writes the rules; a deterministic engine runs them on real Binance data (perpetual futures and spot) with fees, slippage and funding counted. Optimize with a held-out check, forward test on live data, build portfolios, and get a full report for every result.
Institutional-grade counterparty risk indicators for digital asset yield providers. 6 read-only tools: search providers, get risk scores, compare providers, assess portfolio risk, and list modules across 98 providers and 10 modules.
Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.
Cited Bitcoin coordination record search (~783k). Lightning. MCP. Not prices/chain analytics.
Pay-per-call API for AI agents: token trade math and risk intel. Pre-trade check, rug-risk scan, contract check, deployer history, bundle/sniper check, wallet snapshot, token search, buy/sell quotes. No signup, no API key. Each call is paid with x402: USDC on Base (also USDC on Solana or private ZEC on HTTP), $0.001 to $0.02 per call. Live at https://curvecall.onrender.com/
Real-time planetary signal engine and Model Context Protocol (MCP) server for autonomous AI agents.
Your agent needs markets — prices and fundamentals for listed companies, the filings behind them, crypto, and what the prediction markets put the odds at. **What you can ask for** • "Pull this company's income statement, cash flow and balance sheet for the last 8 quarters." • "What did insiders buy or sell, and when?" • "Snapshot prices for these 50 tickers, then the OHLC history for the three that moved." • "What are the current odds on this event across Kalshi and Polymarket?" • "Screen for companies matching these financial criteria." **How to use it** Point any MCP client at https://mcp.aisa.one/finance/mcp and sign in with OAuth — there is no key to create or paste. 49 tools: prices and snapshots, income statements, balance sheets and cash flows, metrics and ratios, earnings and analyst estimates, filings and line-item search, insider trades, macro interest rates, news, a screener; CoinGecko spot prices, market tables, OHLC, per-venue tickers and trending; Kalshi and Polymarket markets and trades; plus EDINET filings for Japan. **Why this rather than the source** Equities, crypto and event markets behind one account, so a cross-asset question is one conversation. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Read the number here, then ask the same agent what X is saying about the ticker today — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/marketpulse/mcp · /crypto-market-data/mcp · /prediction-market-data/mcp · /stock-pulse/mcp for one slice each.
Agentic commerce gateway: discovery, search, checkout across Shopify/Woo/Odoo/PrestaShop with UCP, ACP, AP2, X402. Checkout rules for agents, and trust receipts.
Pay-per-call x402 stock, ETF, index, FX and crypto quotes, OHLCV history, ticker and coin search.
x402 pay-per-call APIs for agents: web search, wallet/token checks, text structuring.
Search perpetuals ecosystem projects, retrieve project details, and list categories.
x402 pay-per-call order book signals, token rug audits and fee-bearing swap routes for agents.
Polymarket contract search and settlement rules. MCP needs approval; request written reports openly.
Search current x402 adoption, integrations, launches and machine-payment activity.
Verified merchants accepting agentic payments on Lightning/L402/BOLT12/USDT — search, verify, pay.
Web search, point-in-time crypto market data, verified strategy track records and 160+ agent tools.
Search and call pay-per-request data services, paying in USDC on Base with x402.
