Payments agents 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.

Open payment protocol enabling agents and apps to pay for APIs over HTTP using stablecoins.

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.

Drop-in OpenAI Python client with transparent x402 micropayment support.

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.

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

Routing and settlement layer and CLI for agent-to-agent commerce, supporting EVM wallets, agent discovery, A2A messaging, x402 payments, and ERC-8004 identity.

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

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

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

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.

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

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.

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

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

MCP wrapper around Circle's Agent Stack — create USDC wallets, set spend policies, send stablecoin, and pay x402-gated endpoints.

Wallet-as-a-Service infrastructure for AI agents.

Non-custodial MPC wallet for AI agents with cryptographically enforced human rules, plus a WaaS Skill for building wallet apps via natural language.

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.

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

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

An onchain data network providing structured, AI-ready blockchain data across many chains, with API, CLI, MCP, and x402 access.

Explorer for the x402 ecosystem: transactions, sellers, origins, and resources across agentic commerce.

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

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

Coinbase's remote MCP server — grant an AI agent scoped access to your Coinbase account to trade, make payments, and more.

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

Agent middleware (npm/MCP) that discovers, prices, and pays for paid APIs with multi-chain USDC, tracking 21,000+ endpoints.

Pay-per-call MCP server (x402, USDC on Base) offering keyless web-read, structured extraction, and markdown tools with signed provenance receipts.

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.

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

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

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

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

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.

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

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

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

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.

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

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

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.

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

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

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

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.

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