"How to operate notes in the Memos app" matching MCP servers:

Enables querying indexed blockchain data via subgraph GraphQL queries, part of the Pipeworx MCP gateway.

An MCP server that lets AI agents autonomously buy physical hats using USDC on Base — no credit card, no checkout, no human required. Browse the catalog, get a real-time shipping quote, send crypto, and we ship the hat.

Reasoning-puzzle arcade for AI agents with seven generated puzzle families, free samples, automatic answer checking, and ranked play from $0.02 USDC on Base via x402. Connect through MCP or HTTP. Browse and try samples without a wallet; run paid tools locally with an explicit spending limit.

498 MCP tools across 12 industry verticals. Marketplace, escrow, DeFi, legal, healthcare, insurance, construction, and trades. USDC payments on Base L2.

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

Blockchain JSON-RPC on 23 EVM chains for AI agents — Ethereum, Base, Arbitrum, plus young chains like Robinhood Chain, Plasma and Ink. Free reads with no key; heavy methods (eth_getLogs, trace, debug) via a free API key or x402 USDC pay-per-call.

Enables MCP hosts such as Claude and Cursor to dispatch tasks to live marketplace agents, poll or wait for verified settled results, list available agents by capability, and retrieve live protocol statistics with atomic settlement on Tempo.

On-chain crypto indicators (EMA, RSI, VWAP, Bollinger) via Chainlink oracles.

Enables developers to build Base mini apps from start to finish with 10 specialized tools for generating manifests, starter code, deployment guides, design guidelines, and debugging assistance. Integrates official Base documentation to streamline the complete development workflow for Base ecosystem mini applications.

Enables AI assistants and trading agents to run Solana memecoin safety checks, including grades, red flags, launch bundles, same-second sellers, rug-farm links, and wallet activity.

Tamper-evident receipts for AI agent actions. The notary layer for agent-to-agent transactions.

Enables agents to discover paid x402 resources, inspect the remaining USDC allowance, and make USDC payments on Solana for API calls from an on-chain delegated budget.

Enables AI-powered cryptocurrency trading and analytics across multiple exchanges and blockchains, with integrated Telegram bot and live trading capabilities.

Enables AI agents to interact with the Lido protocol for ETH staking, position management, and governance participation across Ethereum and L2 networks. It provides tools for querying balances, simulating transactions, and executing complex workflows like withdrawals and DAO voting through a safety-first interface.

Local Ethereum wallet for AI agents — read balances and history, request payments that a human approves by password in the app popup, and fetch x402-paywalled resources with USDC on Base. Keys are encrypted on-device and never leave your Mac.

Enables AI agents to directly operate ChainPay cryptocurrency payment system, including order creation, balance checks, and withdrawals.

Read-only MCP server for your Nimiq books: balances, classified history, daily statements priced at each day's close, staking positions, yield projections and rewards. Drafts payment requests and stake links that open in the NimBooks app. Never signs, holds no keys, runs locally.

Lets AI clients call paid x402ai endpoints — embeddings, summaries, and short answers — paying per call in USDC on Base via the x402 protocol, with per-payment and per-session spend caps plus a free inspector for decoding any x402 endpoint's payment challenge. Runs locally over stdio, needs no hosted account, and can operate in quote-only dry-run mode.

Enables AI agents to send and receive private Zcash payments with shielded transactions, balance checks, and encrypted memos.

Connects AI agents to the Arcium encrypted computation network on Solana, offering tools for network exploration, encryption, computation management, and app templates.

Enables agents to access fixed-cost loan tools over MCP and operate a wallet that signs transactions under spend limits.

Read-only MCP server for Oath Wallet. Provides public product documentation, supported-network information, security guidance, release notes, app-screen references, and Journal content without wallet access.

Enables AI agents to attach on-chain memos to payments on Base using the $MEMO token. Supports sending, reading, and querying memos joined to transactions.

MCP server that lets AI agents operate a user-owned wallet on the Bitcoin-IPC testnet, enabling BTC deposits, cross-subnet wBTC payments, and anchored payment receipts, with local key signing and spend caps.

mcp server that allows to do actual actions related to solana first version adds knowledge about RPC methods and how to call them

Prepares unsigned App/PWA handoffs for creating positions in Denaria markets, returning QR codes for user review and signing in the Denaria app, without signing or executing transactions.

Turns Base44's AI builder into a Monad web3 app builder, enabling anyone to vibecode consumer crypto apps (invisible wallets, gasless USDC payments) by describing them in English.

Operate a Hydra head by talking to it — an MCP server that exposes lifecycle, ledger, L1 wallets, node logs, and on-chain error codes as tools for LLM clients to drive and debug a head in plain language.

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.