Onchain agents on Base

Web search and content-retrieval API built for AI; /search and /contents can be paid per request over x402.

Official OpenSea agent skill and MCP server letting AI agents query NFT/token data and execute marketplace operations such as listing, offers, and token swaps.

An intent-based onchain execution engine and API that lets developers and agents bundle multi-step DeFi actions into a single transaction.

Cross-chain swap/settlement API solved by the NEAR Intents solver network; also an MPP payment method so agents pay 402s from any chain.

Uniswap-V4-based token launch protocol on Base with a TypeScript SDK and its own MCP server.

Coinbase's React component and TypeScript SDK library for building onchain apps and mini-apps on Base.

SDK from World (Tools for Humanity) that lets AI agents present a zero-knowledge proof a verified human authorized them, combined with x402 payments.

Ethereum standard providing on-chain identity, reputation, and validation registries for AI agents.

Decentralized AI inference network with an OpenAI-compatible Inference API and open-source consumer and provider node software.

x402-ping is a API and SDK on Base.

Pay-per-call gateway where AI agents reach 55+ LLMs, data, and tools through one endpoint, settled in USDC via x402 — no API keys.

Farcaster developer platform providing APIs, SDKs, webhooks, and an agent skill for building and deploying agents that read and write Farcaster data.

Skim is a data service for agents on Base.

Wallet and DeFi data provider offering portfolio, positions, transactions, PnL, and prices across many chains, with an agent-accessible API.

Open DeFi analytics dashboard and free API tracking TVL, fees, revenue, volume, and yields across many chains and protocols.

Onchain analytics platform with wallet labeling and smart-money tracking, offering an API with key-based and x402 access.

US stock market data API (formerly Polygon.io); agents buy it per request over x402 at agent.massive.com with no account.

Multi-chain API tracking 1,600+ labeled KOL, smart-money, and whale wallets, with an MCP server.

Pay-per-call MCP for blockchain analytics — gas tracking, whale monitoring, wallet profiling — spanning Base, Bitcoin, and XRP Ledger.

Ogena token risk is a data service for agents on Solana, Base.

MCP server querying Aave V2/V3/V4 lending and governance data across 7 chains via The Graph.

x402 Bazaar Rank is a data service for agents on Base, Arbitrum, Polygon.

MCP server for Gloria AI's curated crypto news feed — sentiment-tagged headlines, recaps, and search for agents.

Onchain portfolio data provider exposing token, NFT, and DeFi position data across many chains via a GraphQL API.

MCP server giving AI agents live data — markets, crypto, research, X — billed per call via x402 micropayments.

NanoParse is an MCP server on Base.

MCP server giving AI coding agents live access to SODAX's cross-network DeFi API across 20+ chains.

Public, keyless catalog of x402 payment-gated services indexed by the CDP facilitator, searchable by intent via REST, TypeScript SDK or a hosted MCP server.

Official Arcadia Finance MCP for concentrated-liquidity strategies on Uniswap and Aerodrome.

Hosted MCP scoring risk across 700+ DeFi vaults on Morpho, Aave, Spark, Yearn, and Beefy for agent due diligence.

MCP server providing AI assistants read access to onchain data via the Bankless API.

Read-only Base mainnet MCP for x402: verify USDC settlements, parse x402 manifests, probe endpoints, decode payment payloads.

Non-custodial onchain yield API for agents: discover, assess, enter and exit 3,300+ staking/lending/RWA yields over one MCP server, paid per call via x402.

Single MCP server for balance/price reads and unsigned transfer prep across Stacks, Celo, and Base.

MCP server that discovers x402-paid APIs via CDP Bazaar and handles USDC micropayments on Base.

MCP server that turns an AI assistant into an autonomous DeFi trading agent.

Crypto execution layer and cross-chain wallet that lets agents and users trade, bridge, and manage assets via natural language, plus a skills marketplace and an x402 cloud for spinning up pay-per-call agent endpoints.

Toolkit giving AI agents gasless access to crypto wallets and onchain functionality.

Secure key management infrastructure with policy controls, commonly used for agent wallets.

Embedded and server wallet infrastructure used to give agents secure key management.

Gasless stablecoin payment relay and managed Agent Wallets across 12 EVM chains (EIP-712 + EIP-7702), with an MCP server and optional ERC-8004 registration on BNB Chain.

Seedless MPC wallet whose vaults are programmable by agents through a TypeScript SDK, a CLI and an MCP server, across 36+ chains.

MetaMask's official smart-account delegation contracts — grant an AI agent scoped, revocable permissions instead of a private key.

Non-custodial toolkit from Trust Wallet (MCP server, CLI, and SDK) that lets AI agents read and transact across 25+ chains within user-defined rules.

Gives any AI agent a crypto wallet to pay x402 APIs, receive USDC, and check balances.

Open-source kit that gives an always-on agent (built for Grok Bot) its own Base and Solana wallet, with spending limits its owner sets and Sato Hub checks before it spends.

Self-custodial MetaMask wallet for AI agents with built-in transaction simulation, threat scanning, and spending controls across EVM chains.

DeFi toolkit that gives AI agents and coding assistants wallets to deposit funds, execute trades, and manage crypto.

Open-source autonomous AI trading agent operating across 1000+ markets including Polymarket, Kalshi, and Hyperliquid.

Leading multichain spot DEX with v4 hooks, official SDKs, and a hosted Trading API.

Multichain DEX aggregator with a developer API suite and an official MCP server for AI-agent swap execution.

Intent-based trading protocol with batch-auction solvers, MEV protection, and a developer API and SDK.

Non-custodial trade execution for AI agents: the agent signs, trading funds stay in the owner's wallet, and permissions are bounded on-chain.

Prediction market on Base with a central limit order book, multi-outcome NegRisk markets and a TypeScript SDK.

MCP server for perp funding rates and cross-exchange data across 20+ venues, including Hyperliquid HIP-3.

Spot DEX and liquidity marketplace on Base, with open-source contracts and third-party swap APIs/SDKs.

MCP-native swap router on Base querying 0x and Velora in parallel, with a built-in risk-screen tool.

Testnet only (Base Sepolia): an RFQ exchange where autonomous agents trade directly with each other, settled atomically on-chain. Not on mainnet; not audited.

Onchain perpetuals exchange on Base for crypto, forex, and commodities, with a dedicated Base MCP skill.

A non-custodial trading platform and API offering algorithmic order types (TWAP, limit, stop) with smart order routing across many chains.

Local LLM router for agents: routes each request to the cheapest capable model across 78 models, paid with USDC micropayments via x402 on Base or Solana.

Coinbase's toolkit for giving AI agents wallets and the ability to take onchain actions.

CLI wizard and scripts that register and update an agent's ERC-8004 identity, with the agent card stored as IPFS content on Pinata.

CLI toolkit for deploying NFT collections, minting, and running SuperRare-integrated auctions.

Vercel Labs' reference Next.js template wiring the x402 payment protocol into the AI SDK and MCP for paying agents.

Onchain protocol and TypeScript SDK for launching tokens through price-discovery auctions, built by Whetstone Research.

CLI and MCP proxy that auto-pays x402/MPP-gated endpoints on Base, Solana, Monad, and Tempo from one mnemonic.

Self-hosted control plane for onchain agents: sealed local wallet, ERC-7715 session grants with chain-enforced caps, EIP-7702 execution, EAS attestation ledger, human kill switch.

npx CLI that scaffolds an ERC-8004 agent project with A2A and MCP servers and optional x402 payments, for EVM chains and Solana.

Base-based marketplace where humans and AI agents post and complete tasks, with USDC locked in on-chain escrow, agent staking, and ERC-8004 identity/reputation.

GitHub App that escrows USDC on Base (or MUSD on Mezo) against an issue and pays the contributor when the closing PR merges.

Reference Identity and Reputation registry contracts for ERC-8004, with ABIs and a per-chain deployment table, kept by the 8004 team.

Open HTTP 402 payment protocol, now at the x402 Foundation: agents pay per request in stablecoins, and by a newly merged spec, in bitcoin over Lightning.

Open protocol from Google for secure agent-led payments across traditional and crypto rails, with a crypto-native x402 extension built with Coinbase, Ethereum Foundation, and MetaMask.

Stripe's merchant-side agent payments: charge agents per call over MPP (cards via SPTs, USDC on Tempo and Solana) or x402 (USDC on Base), settled to your Stripe balance.

Managed AWS service that lets agents pay for APIs, MCP servers and content over x402 and MPP, using Coinbase CDP or Stripe Privy wallets with per-session budgets.

Neuronto Payments is an API and SDK.

Solana-first x402 payment facilitator enabling usage-based, machine-to-machine payments for AI agents.

An x402 micropayment gateway and transparent proxy that adds pay-per-request paywalls to existing APIs without backend rewrites.

One-line x402 paywall SDK for monetizing APIs and MCP servers with per-route USDC pricing.

Alchemy's payment proxy for AI agents — every API request is authenticated, metered, and settled automatically, so agents pay per call without keys or subscriptions.

Stablecoin-to-real-world spending for agents: prepaid and gift cards, Venmo/PayPal/ACH payouts. Callable via x402 (USDC on Base/Solana) or MCP.

Identity and payment layer for agents: KYAPay tokens carry an agent's identity and a USDC-backed payment commitment, with a hosted MCP server.

Intent-based DEX aggregator for agents — natural-language swap intents settled via batch auction across 11+ EVM chains plus Solana.

Non-custodial lending protocol with isolated markets and curated vaults, shipped as a Base MCP skill plugin.

MCP server combining DexScreener and DeFiLlama data for yield scanning and token risk checks.

Open lending and borrowing protocol on Base, included as a launch-day Base MCP skill plugin.

Programmable-liquidity AMM protocol included as a Base MCP skill for agent-driven swaps and liquidity actions.

Base MetaDEX and liquidity hub where users lock HYDX for vote-escrowed governance and deposit single-sided liquidity into auto-managed vaults, with actions exposed as a Bankr agent skill.

Permissionless on-chain lottery on Base where players buy stablecoin tickets for provably-fair draws and liquidity providers fund jackpots.

Non-custodial ERC-4626 yield optimizer on Base and Ethereum; agents deposit stablecoins into yoUSD to earn aggregated DeFi yield.

Institutional RWA tokenization platform (ISO 27001/27701/27018, MiCA-aligned) with a no-code issuer studio and an API integration tier.

Self-custodial DeFi yield agents that rebalance Safe-based accounts across supported protocols, with an SDK and a hosted MCP server.

Open-source TypeScript framework for building crypto-native multi-agent systems.

An AI-agent framework and non-custodial vault protocol for designing, backtesting, and deploying automated DeFi yield and trading strategies.

Network and framework for co-owned autonomous agent services operating onchain.

Commerce SDK for bootstrapping AI agents that can pay, sell, and transact onchain.

Virtuals Protocol's official Python SDK for building autonomous agents with planning, worker, and function layers.

A Cosmos SDK Layer 1 with EVM compatibility positioned as a settlement and distribution layer for AI agents.

Omnichain protocol that lets AI agents navigate blockchains and execute transactions via natural-language 'Paths'.

A no-code platform from Spectral Labs that turns natural-language prompts into autonomous onchain agents with wallets and trading capabilities.

Crossmint's open-source library of onchain actions (tools) for AI agents across chains.

Skill collection for EmblemAI agents — 200+ crypto tools across seven blockchains.

Agent skills for OKX OnchainOS: wallet, token discovery, market data, and DEX swaps.

Hermes Agent plugin for crypto: wallets, DEX trading, lending, staking, governance, and onchain automation.

Agent skill for Bitget Wallet: token swaps, cross-chain bridging, and gasless transactions.

An autonomous agent/builder on Base publishing open-source crypto agent skills such as calldata decoding, proxy resolution, and protocol integrations.

Web3 toolkit for Claude Code: 140 custody-free MCP tools for EVM and Solana DeFi, DEX, and perps.

An autonomous AI agent with its own wallet that spends USDC to get real work done.

Agent that deploys tokens on Base when tagged on Farcaster.

An Optimism Superchain L2 focused on AI-driven onchain finance, with configurable rules-based trading agents.

ARMA is Giza's autonomous agent that manages stablecoin lending positions across Base DeFi protocols on the user's behalf.

AI market-intelligence agent that publishes crypto narrative and project analysis.

Adversarial AI agent experiment where users try to convince an agent to release onchain funds.

PulseFeed checks an x402 endpoint before an agent pays it (liveness, a 0-100 score, receiver and price flags) and tracks changes to MCP servers and npm packages. Ships a guard SDK, an MCP server, and Vercel AI SDK and LangChain tools.

Open-source privacy SDK that adds unlinkable, zero-knowledge payments on top of the x402 agent payment standard.

Pre-built MCP blockchain capability modules giving agents fraud detection, AML scoring, wallet profiling, and token analysis.

Keyless API that simulates a buy and sell of an EVM token and reports the observed taxes, gas and honeypot result.

Pay-per-use security verification endpoints for AI agents, billed via x402 micropayments.

minia2a is a marketplace where agents find and pay for services on Base.

Marketplace where AI agents hire agents: on-chain .agent identities (ERC-8004), escrowed jobs and quotes, settlement in USDC/USDT on BNB Chain and Base.

One gateway for agents to discover, call and pay for 800+ API endpoints from 50+ providers. Pay per call via x402, MPP or Circle Nanopayments.

An ERC-8183 agent skill marketplace where builders register skills and agents discover, chain, and pay for them on-chain.

Launchpad and protocol for creating and tokenizing AI agents, primarily on Base.

Protocol and SDK for creating and trading ERC-20 coins on Base, with a public REST API and a skill file for AI agents.

A no-code platform on Base for building, tokenizing, and deploying social AI agents ('Onchain Minds') across Farcaster, X, and Telegram.

On-chain US 501(c)(3) community foundation enabling donor-advised funds and crypto, stock, and cash donations to nonprofits, with an agent skill for charitable giving.