"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.

Universal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents on Base L2.

Enables AI trading agents to submit proposed trades for deterministic pre-execution risk evaluation, returning allow/warn/deny decisions, risk scores, and tamper-evident audit hashes. It also supports token safety checks, balance simulation, asset registry lookup, and audit trail verification.

A Model Context Protocol server that enables interaction with Foundry tools through natural language, allowing users to create projects, build contracts, run tests, and manage Ethereum development environments.

Generates MCP servers from smart contract ABIs, enabling Claude to interact with any Ethereum contract via natural language commands.

Enables AI agents to play the CPU Game on EVM, including world exploration, building, crafting, and trading via natural language.

Deterministic Risk Oracle for DeFAI Agents.

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

An MCP server that provides authorization middleware for AI agents using private data, enabling consent management on Aleo and local private inference with persistent policy storage.

An AI-driven platform for analyzing Polymarket prediction markets using on-chain data, offering smart money tracking, sentiment analysis, and arbitrage detection via natural language queries.

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

A Model Context Protocol (MCP) server connecting AI agents to the Polygon blockchain for product origin verification and supply chain timeline auditing

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.

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

A backend service that enables interaction with the Binance exchange API, allowing users to view their portfolio, convert tokens, and execute trades with minimal market impact.

MCP server connecting AI assistants to Havona trade finance API for managing trade contracts, checking blockchain status, and extracting document fields.

Enables AI agents to access a marketplace of paid tools by automatically handling Stellar blockchain payments and wallet management. It utilizes the X-402 protocol to facilitate transparent, automated transactions for tool usage through a marketplace backend.

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

A backend service that executes transactions across multiple blockchains, enabling users to manage wallets, transfer tokens, and interact with smart contracts using the Model Context Protocol framework.

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.

Provides read-only tools to query live Polymarket prediction-market data via the public Gamma API, enabling search, browsing, and detailed market and event information.

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 agents to make pay-as-you-go AI inference requests through x402 with automatic Solana USDC payments, no API keys or registration, while enforcing configurable spending limits.

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.

An MCP server that gives autonomous coding agents deterministic, schema-validated tools for EVM smart contract development — security scanning, gas profiling, compiler diagnostics, and transaction simulation.

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.

Let any MCP client issue and verify EU AI Act Article 50 transparency receipts for AI-generated content, anchored to Bitcoin.