Agent tooling

Gives AI agents onchain data in one prompt - 150+ chains, token prices, wallet balances, and transaction history. Streamlined sign-up and skill installation for Claude, ChatGPT, and agent frameworks.

Base MCP is a Model Context Protocol server that connects AI agents to wallet and onchain tools on Base, with pre-built prompts and workflows for wallet operations, token transfers, and DeFi interactions. Nothing happens onchain without explicit approval since the server never holds or accesses private keys, instead constructing pending requests that a Base Account reviews and signs, and it ships with skill plugins covering Morpho, Moonwell, Aerodrome, Bankr, Avantis, Virtuals, and Uniswap.

Wraps Blockscout APIs and exposes blockchain data (balances, tokens, NFTs, contract metadata) via MCP for use in AI agents and IDEs.

CoinGecko MCP is a remote Model Context Protocol server that gives AI agents access to CoinGecko's market data, including live prices and market caps, historical charts, DeFi and onchain pool data, and NFT collection analytics. It connects to Claude, Cursor, VS Code, and other MCP clients with minimal setup and is backed by CoinGecko's existing API.

Cryo MCP is a Model Context Protocol server for the Cryo blockchain data extraction tool, letting agents run SQL-style queries over Ethereum data with flexible block range specification, contract filtering, and output in JSON, CSV, or Parquet. It exposes Cryo's data-extraction capabilities through an MCP-compatible API for use in DuckDB-style analysis workflows.

MCP server for Ethereum Name Service (ENS), enabling agents to resolve names, reverse-lookup addresses, check availability, and retrieve ENS records.

MCP server that enables AI agents to build and deploy applications in the Ethereum ecosystem.

RAG-powered MCP server for Ethereum consensus specs, EIPs, and client source code. Provides indexing and search via CLI and MCP tools.

Query Ethereum in plain English. MCP server with 153 tools across Etherscan, DefiLlama, CoinGecko, growthepie, Blobscan, and Dune - balances, TVL, yields, prices, 60+ chains. Built for researchers.

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

An MCP (Model Context Protocol) server that provides Ethereum blockchain data tools via Etherscan's API. Features include checking ETH balances, viewing transaction history, tracking ERC20 transfers, fetching contract ABIs, monitoring gas prices, and resolving ENS names.

Morpho Agents is a beta interface built for AI agents to read, simulate, and write to Morpho's lending protocols. The User Agent product is a CLI and MCP server giving agents full read, simulate, and write access on Ethereum and Base with any wallet infrastructure, running every write through a simulation first, while the Builder Agent is an AGENTS.md knowledge base that turns a code agent into a Morpho integration expert.

Pendle AI is a set of AI plugins for Pendle Finance, packaged as MCP servers, that let agents trade yield tokens, manage LP positions, place limit orders, and query DeFi market data across seven EVM chains. It includes a Pendle V2 plugin for the core yield-trading protocol and a Boros plugin for interest-rate derivatives on Arbitrum, and is compatible with Claude Code and other MCP-based tools.

QuickNode MCP Server brings the power of QuickNode's blockchain infrastructure directly to your AI assistant.

MCP server that wraps Slither static analysis for Solidity smart contracts. Query contract metadata, functions, inheritance, call graphs, and run security detectors. Works with Foundry and Hardhat projects. Includes typed Python client for programmatic use.

Tenderly MCP is a Model Context Protocol server that brings Tenderly's blockchain development tools into AI assistants like Claude, exposing around 59 tools for transaction simulation, virtual testing environments, call trace and event inspection, and project management. It authenticates via OAuth and lets an agent set an active project, then run simulations and debug transactions without leaving the chat.

WalletChan MCP is a local MCP adapter that connects AI agents to WalletChan wallet accounts through popup approvals, portfolio reads, swaps, and bridges, with optional delegated execution via ERC-7710 permissions. It lets local MCP clients like Claude Desktop, Cursor, and Codex interact with a WalletChan wallet across Base, Ethereum, Polygon, and Unichain.

MCP server giving AI tools direct access to Zerion's real-time crypto data. Portfolio, transactions, PnL, DeFi positions, token prices, NFTs, and gas prices. Works with Claude.ai, Claude Code, and Cursor. Connect via URL: https://developers.zerion.io/mcp.

we built an evm mcp server that allows agents to interact with a multitude of chains

A simple, lightweight and fast MCP (Model Context Protocol) server that provides Solidity development capabilities using the Foundry toolchain (Forge, Cast, and Anvil).

Across Skills is a knowledge base and MCP endpoint for building crosschain applications on Across, covering the Across swap API, suggested fees, deposit tracking, and embedded crosschain actions that execute contract calls across different chains in a single transaction. It is aimed at both AI agents and developers building production crosschain apps, and is available under an MIT license.

Bankr Skills is a catalog of plug-and-play agent skills built around Bankr's wallet, trading, and security infrastructure, letting builders add natural-language crypto trading, portfolio management, token launching, and DeFi operations to an agent without standing up wallet plumbing themselves. Specialized skills in the catalog cover things like deploying ERC-20 tokens with Uniswap V4 pools, cross-chain swaps across 50-plus chains via Symbiosis, and prediction-market intelligence, all routable from natural language across Base, Ethereum, Polygon, Solana, and Unichain.

Bitrefill Skill is an agent skill that routes an AI assistant through buying gift cards, mobile top-ups, and eSIMs from Bitrefill across 180-plus countries and 1,500-plus brands, paid for with crypto, Lightning, USDC, or a prefunded Bitrefill balance. It detects the execution environment and available wallet integrations to pick the lowest-friction checkout path, supports guest checkout via Base wallet sign-in, and keeps user-facing messaging free of technical jargon like x402, MCP, or JWT.

Claude plugin with Solidity development standards for production-grade code. More thorough on testing, code quality, and smart contract sensitivity. Install via Cyfrin marketplace. By Patrick Collins and the Cyfrin team.

DefiLlama Skills is a collection of MCP skills exposing roughly 23 DeFi analytics tools built on DefiLlama data, covering full market snapshots of TVL, categories, chains, events, and stablecoins alongside guided workflows for protocol analysis, token research, chain ecosystem comparisons, yield strategy discovery, and risk assessment. It is aimed specifically at wiring DefiLlama's analytics into AI agents, distinct from the main DefiLlama analytics site.

Structured Ethereum knowledge for AI agents - end-to-end guides from dApp idea to production. Skills cover wallets, L2s, standards, tools, DeFi, security, testing, indexing, and frontend UX. Fetch via URL, curl, or Claude plugin. No install required.

Fluid Skill is an agent skill providing integration documentation and code examples for Fluid Protocol, a DeFi lending and vault platform by Instadapp. It covers ERC-4626 fToken lending, leveraged vault borrowing and collateral management, and on-chain resolver contracts that let agents read positions, APY, and TVL directly from chain state without API keys, across Ethereum, Arbitrum, Base, Polygon, and Plasma.

Reusable triage skill for HackenProof bug bounty report handling. Verifies commit/version scope, submission scope, checks duplicates, and validates submissions to decide state, severity, and comments. For Codex and Claude.

OpenSea Skills is a collection of agent skills for interacting with the OpenSea NFT marketplace, bundled under a router skill that directs an agent to the right sub-skill for its task. It covers querying NFT and collection data, buying and selling items through the Seaport protocol, swapping ERC20 tokens, configuring wallet signers, and registering gated AI tools, and installs via the Agent Skills spec with npx skills add.

Agent skills for secure smart contract development with OpenZeppelin Contracts libraries, including setup and upgrade workflows for Solidity and other ecosystems.

Claude Code skills for Solidity security and development. solidity-auditor provides fast (typically under 5 min) security feedback on Solidity changes while you develop. Works with Claude Code CLI, VS Code Claude extension, and Cursor.

AI agent skills for smart contract security auditing. Ten plugins covering reentrancy, oracle/flash loan, proxy/upgrade, state invariants, semantic guards, and more. QuillShield methodology for vulnerabilities traditional static analysis misses. Works with Claude and Cursor.

Sablier Agent Skills are open source, MIT-licensed instructions that let coding agents create onchain token vesting streams, payment streams, and Merkle airdrops on Sablier. Instead of walking through the app manually, a user describes what they need in natural language and the agent handles building the vesting schedule, stream, or airdrop distribution across the 27-plus EVM chains and Solana that Sablier supports.

Smart contract security auditor for Claude Code and Codex CLI. Integrates Slither, Aderyn, Cyfrin checklist, and Solodit findings. Map-Hunt-Attack methodology with four MCP tools for static analysis and findings search.

Claude Code skill that scans Solidity codebases for security vulnerabilities using 36 unique vulnerability types. Four-phase audit: load cheatsheet, syntactic and semantic codebase sweep, deep validation with reference files, and report. References from smart-contract-vulnerabilities.

Sign In With Agent - lets servers authenticate AI agents and filter out humans. Built on ERC-8004 and ERC-8128, with SDK support for Next.js, Express, Hono, and Fastify.

A Claude Code plugin marketplace from Trail of Bits providing skills to enhance AI-assisted security analysis, testing, and development workflows.

AI tools for building on Uniswap, including reusable skills, plugins, and agents for coding assistants integrating Uniswap workflows.

Cookbook AI provides Web3-focused AI agents for developer onboarding and user support across websites, Discord, and Telegram.

DeFi Skills, built by Nethermind, is a deterministic engine that converts natural-language DeFi intents like supplying USDC to Aave into raw, unsigned, ABI-encoded transaction payloads instead of relying on an LLM to guess calldata. It covers 13 supported protocols including Aave V3 and Uniswap V3, is available as an open-source CLI and a hosted REST API, and uses JSON playbooks and resolvers to encode protocol knowledge and handle parameter conversion.

Agentic RAG system grounded in Ethereum specs, discussions, papers, and codebases. Enables AI agents to reason about the Ethereum protocol with retrieval-augmented context from authoritative sources.

Nani Qwen 3.5 2B is a fine-tuned Qwen3.5-2B language model for crypto wallet tool calling, trained with LoRA on roughly 2,000 examples covering 103 blockchain tools. It is designed to resolve ENS names, check balances, execute swaps, and perform other wallet operations as structured tool calls, and is distributed as open GGUF weights for local inference.

request-wallet-sign is a standalone npm CLI utility that lets AI agents request wallet signatures from a human through a browser interface without ever holding private keys. The agent passes transaction details as command-line arguments and the tool spins up a local server that displays a decoded, plain-English summary of the request, where the user connects a wallet, reviews the details, and approves the signing. It runs local-only by default for instant use, supports standard transactions, typed data, and personal signatures, and can use Cloudflare tunnels for cross-device signing, with a built-in timeout that auto-closes tabs once a request is handled.

Steer CLI is a read-only command-line tool for Steer Protocol that exposes live protocol status, chain and protocol discovery, market inspection, liquidity analysis, and vault data through a typed command interface. It is built for both terminal users and AI agents, with skill and MCP integration in mind.

Web3GPT is a prompt-driven assistant for drafting, deploying, and verifying simple EVM contracts across networks when you want a fast starting point before moving work into your usual IDE flow.