"A guide to PostgreSQL architecture and internals" matching MCP servers:

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

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

📈 提供股票、加密货币的数据查询和分析功能MCP服务器

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), ...

MCP server enabling AI agents to perform cross-chain token swaps through NEAR's intent-based architecture using the Defuse Protocol, with token discovery, quote retrieval, swap execution, and status tracking.

MCP server for Bags on Solana. Reads token analytics, creator-fee data and trade quotes; executes swaps and fee claims only behind a token gate, a hard SOL spend cap, and a single-use confirmation token bound to the exact arguments. The first call to a write tool signs nothing — it returns a preview. 14 tools, 337 tests at 100% coverage enforced in CI, mainnet-only writes, npm provenance.

Enables AI agents to perform Bitcoin and Lightning Network payments using a non-custodial, zero-trust architecture. It provides 13 tools for wallet management, invoice creation, and payment processing while keeping node credentials local to the user's machine.

A Model Context Protocol server that enables AI agents to interact with 30+ Ethereum-compatible blockchain networks, providing services like token transfers, contract interactions, and ENS resolution through a unified interface.

A server that provides tools for retrieving real-time price information for various assets including precious metals and cryptocurrencies, allowing language models to access and display current asset price data.

Enables LLMs to manage a phoenixd Bitcoin Lightning wallet, including creating and paying invoices, managing channels, and querying balances and node info.

open-source personal finance app with a first-party MCP server. 91 HTTP tools (OAuth 2.1 + DCR) and 87 stdio tools cover transactions, budgets, accounts, portfolio analytics, FX conversion, loans, subscriptions, goals, importers, and rules. Users self-host with Docker + PostgreSQL or use the managed cloud

Enables AI agents to pay for MCP tool calls using either Bitcoin/Lightning (L402) or USDC (x402) rails, with unified settlement and a 21% discount for Bitcoin payments.

Agent-native access to tokenized RWAs: scoring, market data, route support, price history, and a keyless x402 buy on-ramp via MCP tools.

MCP server for opcode gasless trading API, enabling agents to perform trades, logins, and account operations through a sign-then-submit flow without holding private keys.

Trade across 22+ exchanges and brokers from any MCP-capable AI agent. Autoview's MCP server is a hosted, remote endpoint, no install, no local server to run.

A Model Context Protocol server that provides onchain tools for AI applications to interact with the Hashkey Network, enabling cryptocurrency transfers, smart contract deployment, and blockchain interactions.

A keyless, custody-free MCP server that bridges AI agents to Scry Solana wallet intelligence, paid per request via x402. It provides free discovery tools and brokers paid evidence endpoints, allowing agents to settle payments directly with their own wallets.

A Model Context Protocol (MCP) server for interacting with the Nimiq blockchain.

Provides a comprehensive interface to the Robinhood Crypto API for account management, market data retrieval, and trading operations via REST and WebSocket.

Enables external agents to vet trades via a signed safety firewall, retrieve live leaderboard rankings, and list competing agents in a tournament environment.