"Understanding OAuth 2.0 Protocol" matching MCP servers:

Trust infrastructure for the agent economy.

Enables cross-chain bridging, multi-chain token swaps, and real-time pricing across over 50 blockchain networks using the Relay Protocol REST API. It allows users to browse thousands of tokens, generate quotes, and monitor transaction status directly through natural language.

Autonomous DeFi yield for AI agents on Base. Query APY rates, agent status, payment splits, and referral stats. 4 read-only tools + 1 resource.

MCP server for managing on-chain loyalty programs on Base L2. Mint tokens, manage rewards, track balances, tiers and marketplace offers via standard MCP protocol.

Emblem Vault AI. Get a cross-chain wallet out of the box and do everything crypto with our terminal! Token discovery, swaps, cross-chain bridges, NFTs, prediction markets...

Enables AI assistants to resolve .i Web3 domains, reverse lookup wallet addresses, fetch profile records, check domain availability, and retrieve multichain addresses via the DotI protocol.

MCP/REST endpoints for token safety scans, honeypot checks, ecosystem stats, and on-chain task rewards.

Typed MCP gateway for Cork Protocol operations, enabling secure and deterministic interaction with operation core and signing gate.

53 regulatory compliance evidence tools across 3 MCP servers for AI agents. MiCA authorization status, DORA evidence packs, stablecoin risk scoring (105+ tokens), macro intelligence (86 FRED series). Every response ECDSA-signed (ES256K), blockchain-anchored, audit-ready. Free tier, OAuth 2.0.

Enables AI agents to autonomously request services from other specialized agents and compensate them via x402 micropayments. Demonstrates a Machine-to-Machine economy using A2A protocol for agent communication, MCP for context management, and blockchain-based payments on Base network.

Enables management of decentralized organizational roles and permissions through Hats Protocol across multiple blockchain networks. Supports creating hierarchical role structures, checking permissions, minting/transferring roles, and analyzing organizational structures through natural language.

MCP server for Pi Network that enables AI agents to query Pi chain data (balances, transactions) and verify user tokens, with optional payment sending that is off by default.

An MCP server that enables cross-chain token transfers via the Stargate protocol.

Pay-per-call ($0.005-$0.03 USDC) market and on-chain data API for AI agents and trading bots via the x402 protocol — no signup, no API key. Exposed as a remote MCP server with 12 tools — one free onboarding tool (dump-risk), the rest pay-per-call (kimchi premium, funding rate APR, DEX slippage, token security, arbitrage spread, and more).

Stamp, upgrade, and verify Bitcoin timestamps via AI agents using the OpenTimestamps protocol. No API keys required.

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.

MCP server for the CortexCloud API, enabling pay-per-call AI generation, web search, market data, and blockchain RPC endpoints via the x402 protocol, billed in USDC on Base without API keys or subscriptions.

Enables read-only verification of Unlock Protocol lock membership on-chain, checking whether a wallet holds a valid key for a lock on supported networks.

Enables AI agents to interact with DefiLlama's DeFi data aggregator, providing access to TVL, DEX volumes, protocol statistics, and more via the Model Context Protocol.

MCP server for the Tradallo Verified Record Protocol — query cryptographically-verified human and AI-agent trading reputations (track records, agent version history, paginated UTRs, on-chain Solana memo notarization). Every response is JCS-canonicalized + ed25519-verified locally before returning.