"Using a search engine to find evidence to answer a question" matching MCP servers:

Cross-chain cryptocurrency swaps via Chainflip. Get quotes, execute swaps, and track progress. No API key required to get started.

MCP server for question.market prediction markets on Algorand. Enables market browsing, wallet onboarding, and trading through natural language.

Enables users to inspect Solana token mint accounts, preflight transfer actions, and verify outcome receipts without holding any keys or signing transactions.

Complete DeFi intelligence — Yield, Staking, Restaking, RWA, Perps, Gas Optimization & Contract Security. One answer, not raw data.

DISCONTINUED (October 2026): the ZPL Engine service is offline, so this MCP server no longer works. Repository archived, npm package deprecated.

Enables AI agents and their users to retrieve scored news sentiment, narratives, historical readings, and cited sources for Bitcoin, gold, and oil, with tamper-evident, time-stamped data for trading decisions.

AgentBureau provides the legal and physical infrastructure for AI agents to operate within the German jurisdiction. We bridge the gap between digital intelligence and real-world action by providing "Embodiment-as-a-Service." Through our API, agents can perform legally binding actions—like sending faxes, mailing physical letters, issuing invoices, forming entire companies (GmbH/UG), ...

Multi-endpoint Web3 intelligence service for token risk scanning, pre-trade checks, and signal snapshots, using DexScreener data with x402 payment support.

Real-time DEX token momentum, orderbook liquidity depth, and whale flows on Base Mainnet gated with gasless x402 micropayments.

This MCP wraps Bitrefill public API to allow agents to search for products and shop using cryptocurrencies like Bitcoin, Ethereum, Solana, and many more.

Enables web search for AI agents with pay-per-search in USDC, no API keys needed.

Scores and groups caller-supplied Solana launch records using heuristic evidence, exposing tools to analyze deployer reputation through stdio, HTTP API, and Apify integration.

An MCP server that provides real-time web search to AI agents via a pay-per-search USDC microtransaction system.

Enables AI hosts to propose crypto trades that are checked by a deterministic risk engine, returning LONG, SHORT, or NO_TRADE decisions with refusals and an auditable paper-fill trail.

Enables users to compare current Aerodrome veNFT voting positions, bounded claimable rewards, and selected pools' voting evidence on Base against a saved local baseline, with retryable, atomically stored change reports. All tools are read-only on chain, requiring no keys, signing, or transactions.

A comprehensive cryptocurrency market-data MCP server with 49 tools across six data sources, enabling LLMs to answer market questions via natural language.

Enables AI agents to query Keel's Stellar liquidity risk engine for executable order-book and AMM depth, maximum safe collateral sizes, asset risk bands, flags, and historical readings, with ledger and methodology provenance on every answer. All tools are read-only, so agents can assess collateral and trade depth without signing or submitting transactions.

A cryptocurrency news aggregation server providing AI-powered sentiment ratings, trading signals, and real-time market updates. It allows users to search news by coin, source, or engine type and filter results based on AI impact scores and bullish/bearish signals.

Enables Claude or any MCP host to access live market data—quotes, history, technical indicators, and NYSE status—and answer natural-language questions about stocks.

Enables MCP-capable assistants to answer questions about Splinterlands Land, cards, and players by querying the game's public endpoints, including rankings, staking, and transaction evidence.