"Connecting a backend project to an Elasticsearch database" matching MCP servers:

MCP server for Project CPU, a blockchain game on EVM. It lets an AI agent play on your behalf: read the world map, reveal cells, build and mine, craft, move resources, trade at marketplaces, and cash out to on-chain $CPU.

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

Enables AI agents to interact with Robinhood Chain via USDG payments, offering tools for balance, pricing, trading, and more.

Provides real-time and historical cryptocurrency market data from multiple exchanges (Binance, Kraken, Coinbase Pro) with Redis caching and rate limiting support.

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), ...

A read-only MCP server connecting AI agents to MTRKR wallet intelligence on MegaETH, enabling wallet portfolio, DeFi positions, security scanning, and transaction analytics.

Provides read-only access to live Hylo protocol data on Solana mainnet, including hyUSD/xSOL/eHYUSD mint supplies, pause flags, Earn Pool NAV and pool holdings, and an address's direct SPL token balances for those mints. It answers queries and explains the core mechanism without connecting a wallet, building transactions, or signing anything.

MCP server connecting AI assistants to eToro for portfolio analysis, market research, and trading, with 35 tools.

A Model Context Protocol server that allows AI assistants like Claude to directly query cryptocurrency and blockchain project data from RootData, including project information, organization details, and search results.

An MCP server that provides cryptocurrency project data to AI agents

MCP server connecting AI assistants to OKX exchange, enabling trading, market data, account management, and more via 150+ tools across 11 modules.

Enables LLMs to query Kite Passport user info, sessions, wallet balance, and backend health via read-only MCP tools.

Enables querying Polymarket prediction market data, including top active markets and order books, without an API key or database.

A local MCP server that acts as a thin proxy to expose Tread's trading data and order tools to a local LLM, fetching tool catalog and forwarding calls to the Tread backend.

Enables AI agents and backend applications to retrieve and analyze A-share, US equity, ETF, index, and crypto data, including technical indicators, fundamentals, money flow, news, and filings. It exposes these capabilities through MCP tools, HTTP APIs, and CSV/JSON code-export endpoints.

Enables AI agents and backend services to retrieve and analyze A-share, US equity, ETF, index, and crypto data, including technical indicators, fundamentals, money flow, filings, and news through MCP tools and HTTP APIs.

Enables Claude and ChatGPT users to query technical indicators, strategy signals, and symbol comparisons for stocks and crypto through a read-only backend, returning readable summaries and JSON snapshots.

Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.

Rescues USDC, USDT and USDG from wallets with no gas. Agents check a wallet for stuck or frozen stablecoins, quote a send or a swap into the gas coin, collect the wallet signature and track the transfer. Base, Arbitrum, Ethereum, Polygon, Avalanche, BNB Chain, HyperEVM, Robinhood Chain, Solana and Tron.

Enables AI assistants to create USDT and USDC invoices, retrieve payment links, and check invoice and store payment status across connected payment-gateway stores via the Model Context Protocol.

Enables agents to search and inspect live service offerings, generate x402 payment snippets, and understand blockchain-only balance policies.

MCP server for RugGuard, enabling AI agents to perform pre-trade rug checks on tokens, with paid tools for token scanning and pre-trade verification, and a free metrics resource.

Non-custodial on-chain escrow + AI arbitration for agent-to-agent USDC payments on Base. Seven tools wrap a verified EscrowV1 contract — create, deliver, confirm, dispute, resolve — with read-only introspection if no wallet key is provided.

Hourly news sentiment and typed market events (hack, regulation, listing, delisting, legal) for 30 crypto pairs, with source links on every signal. Four tools cover the latest score per symbol, history, classified events and the symbol list, and a free API key works out of the box

Enables MCP-capable agents to retrieve a tamper-evident decomposition of x402 network growth on Base and to place $399 human-reviewed endpoint or wallet audits paid over the x402 rail, without moving funds itself.

MCP server for l402-kit — enables AI agents (Claude, Cursor, etc.) to autonomously pay Bitcoin Lightning-protected APIs. Tools: l402_fetch, l402_balance, l402_spending_report. Run with: npx l402-kit-mcp

Converts PDF, Word, Excel, and PowerPoint documents to Markdown using a pay-per-conversion model with USDC on Base via the x402 protocol.

Enables AI agents to read and bid on a paid message slot on Solana, with enforced spend limits, dry-run proposals, and an append-only audit log for every write.

Enables AI agents to discover and pay for x402-gated HTTP APIs, handling 402 Payment Required flows with local signing. Supports EVM and Solana with non-custodial wallet management.

Keyless crypto payments for AI agents. One MCP call turns any wallet address into a non-custodial crypto payment link or tip jar, no API key and no account, with funds settling straight to your wallet at a 0% platform fee (USDC/USDT, BTC, LTC, DASH, DOGE, ZCASH).