#onchain

Pay-per-call x402 data APIs for AI agents, exposed over MCP. Multi-source web search (Hacker News + GitHub + Stack Overflow + Wikipedia in one call), multi-chain on-chain reads (balance, gas, tx across Base/Ethereum/Optimism/Arbitrum/Polygon), token rug-check, live DEX data, and unique AI-visibility (does AI recommend a brand or token). USDC on Base, no API key, no signup. MCP endpoint: https://store.agentexchange.work/mcp

Read-only Base mainnet chain reader for x402 payment verification. Confirms on-chain that a USDC settlement matches a claimed x402 receipt (recipient and amount), parses publisher /.well-known/x402 manifests, and lists recent USDC payments to an address. No private keys, verification only. The verify-side companion to Coinbase Base MCP, with AFTA federation helpers.

Give your AI agent a wallet it can actually use. Tychi MCP plugs into Cursor, Claude Desktop, OpenClaw, and any stdio MCP host — onboard, create, import, and switch wallets with fast direct tools, then balance checks, sends, and policy-gated payments through tyi_chat. Keys live encrypted in ~/.tyi on the operator's machine; a hosted brain parses intent and routes LLM calls while every signature stays local. Includes routing guide (tyi_route), readiness checks (tyi_status), multi-wallet support, spend caps, audit logging, and gasless payment routing via UGF. Built for agent workflows: secrets via tool params or env, never through chat. Apache-2.0, npm + GitHub.

KOL, smart money & whale wallets API on Solana, BNB, Base, ETH: Wallet tracker, Leaderboard

The first escrow-native MCP server for agent commerce. Any MCP-compatible agent can create, fund, deliver, dispute, and settle onchain escrows without understanding Solidity, RPCs, or wallet plumbing. Built on Base L2. Powered by the DualDepositEscrow v2 smart contract. Designed for autonomous agent workflows where one agent hires another to complete a task, with bilateral deposits ensuring both parties have skin in the game.

Trust-and-knowledge MCP server for agent ecosystems: score trust, verify/certify agents, register identities, and query a Neo4j-backed knowledge graph.

ATKN is an MCP server for trust scoring, verification, certification, wallet-linked registration, and Neo4j-backed knowledge queries.

ATKN is an MCP server for trust scoring, verification, certification, wallet-linked registration, and Neo4j-backed knowledge queries.

Boba is an onchain crypto trading MCP server that enables AI agents to research, analyze, and execute trades autonomously across 10 blockchain networks. 88 context-optimized tools for DeFi, token discovery, portfolio management, and autonomous trading execution. Supported chains: Solana, Base, Ethereum Mainnet, Polygon, BSC, Avalanche, Arbitrum, ApeChain, HyperEVM, Monad Trading & Execution: Spot swaps, limit orders, DCA (dollar cost averaging), TWAP (time-weighted average price), perpetuals trading via Hyperliquid, prediction markets via Polymarket, multi-chain DEX aggregation Market Data & Research: Real-time token prices, OHLCV charts, liquidity analysis, market cap, volume, token security audits, honeypot detection, rugpull detection, holder distribution, deployer history, KOL wallet tracking, whale monitoring, live swap feeds, token launch streaming Portfolio & Positions: PnL tracking, trade history, position management, wallet tracking, multi-chain portfolio aggregation, XP and fee tier management Agent Infrastructure: Keyless agent wallet generation, secure credential proxy, kill switch access control, verbose tool call logging, audit trail, no private key exposure Install: npm install -g @tradeboba/cli then boba init to connect free credentials from agents.boba.xyz Compatible with: Claude Code, Cursor, OpenClaw, any MCP-compatible AI agent or code editor

MCP server for the Spraay x402 Gateway — connects Claude Desktop, Cursor, or any MCP client to onchain data, AI models, and batch payments on Base mainnet. AI agents pay USDC per request via the x402 protocol. No API keys. No accounts.

A Model Context Protocol (MCP) server for AI agents to interact with blockchain data via Nodit’s Web3 Data and Node APIs. Enables LLMs to access structured, multi-chain blockchain context with zero blockchain-specific logic.