"A Dockerized Python Code Execution Environment" matching MCP servers:

Enables agents to compute exact Uniswap v3 Q64.96 tick math, quotes, and liquidity fees, simulate MEV sandwich vulnerability, model multi-hop flashloan arbitrage profits, and project Base L2 blob gas costs. Tools are metered per call in USDC via an x402 HTTP 402 challenge settled on Base L2, so an agent can verify net profitability before executing a trade.

Provides comprehensive access to Ethereum blockchain data through the Etherscan API, including account, block, contract, transaction, token, gas, statistics, logs, and RPC proxy tools.

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

Gives Claude access to Alchemy blockchain APIs by loading all API specs at startup and providing two tools: search and execute. Enables querying NFTs, token balances, transactions, and more via natural language.

Provides programmatic access to the Regen Network blockchain, allowing AI agents to interact with ecological credit markets and track carbon or biodiversity assets. It includes over 45 tools for querying blockchain modules, analyzing marketplace dynamics, and performing portfolio impact assessments.

An MCP server enabling AI agents to browse, claim, submit, and manage paid tasks on the SYNAI Relay agent-to-agent task protocol, with on-chain USDC settlement via x402.

Provides tools for querying onchain data across 12+ blockchain networks, including token balances, transaction analysis, and smart contract security auditing. It enables users to interact with multiple EVM-compatible chains and perform deep contract evaluations through natural language interfaces.

Combines Midnight Network blockchain development tools with Next.js DevTools for building decentralized applications, supporting contract development, wallet management, and Next.js diagnostics.

Python SDK for x402mail - send and receive email with USDC micropayments

Enables agents to discover and execute Stellar ecosystem services and skills via a search tool and a sandboxed JavaScript execution tool, deployed on Cloudflare Workers.

MCP server for Chainlink Runtime Environment, enabling build, simulate, deploy, and manage CRE workflows from any MCP client.

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.

MCP server that builds unsigned Paraswap token swap transactions for self-custody wallets, holding no keys and signing nothing. It returns raw transaction data for a human to review and approve before execution.

MCP server for OrcaTrace, a pay-per-call Polymarket intelligence feed for AI agents. It provides tools to track smart money, whale entries with calibration, market repricings, and digests across 42K prediction markets, with payments settled via x402 on Base.

MCP server for the Elfa API, providing crypto social intelligence from X and Telegram, including trending, mentions, narratives, and market chat. It also supports Auto, a condition engine for automated monitoring and actions.

WaxSeal MCP gives AI agents cryptographic identity — verify any WaxSeal fingerprint, check Ed25519 signatures, and gate irreversible actions with human-signed approval tokens before execution. It connects Claude Desktop, Cursor, and Windsurf to the WaxSeal trust network so agents can prove who authorized an action and reject tampered credentials in under a second.

DexPaprika MCP server allows LLMs to access real-time and historical data on tokens, DEX trading activity, and liquidity across multiple blockchains. It enables natural language queries for exploring market trends, token performance, and DeFi analytics through a standardized interface.

Pre-trade safety for EVM, Solana and TRON: simulates a real buy and a real sell against live liquidity, so a honeypot shows as a sell that fails instead of a vendor score, and audits a wallet's standing approvals across the three chains. Python standard library only, no API key.

Enables cross-chain swap execution across 12 venues and 17 chains, including native Bitcoin as source or destination, with tools for quoting, execution, status, and health checks. No signup, API key, or protocol fee required.

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