66 x402 payment tools on Base, scored

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

Developer Tool · ★ 1,336

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

MCP · ★ 392

Skim is a data service for agents on Base.

Data Tool · ★ 3

NanoParse is an MCP server on Base.

MCP · ★ 0

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

Agent Marketplace · ★ 1

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.

Payment Rail · ★ 6,750

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.

Wallet Infrastructure · ★ 1,205

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

API / SDK · ★ 24

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

Data Tool · ★ 63

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.

Developer Tool · ★ 6,634

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.

Security Tool · ★ 0

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

API / SDK · ★ 5,162

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

Data Tool · ★ 139

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.

MCP · ★ 163

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.

API / SDK · ★ 55

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

Onchain Agent · ★ 559

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

Wallet Infrastructure · ★ 417

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

MCP · ★ 2

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

API / SDK · ★ 262

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.

Payment Rail · ★ 3,233

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.

Wallet Infrastructure · ★ 102

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

Data Tool · ★ 398

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.

Payment Rail · ★ 58

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

Skill Repo · ★ 12

x402-ping is a API and SDK on Base.

API / SDK · ★ 0

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

API / SDK

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

API / SDK

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.

Payment Rail · ★ 3,476

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

Security Tool

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

Skill Repo · ★ 342

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

Wallet Infrastructure · ★ 79

Neuronto Payments is an API and SDK.

Payment Rail

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.

MCP

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

Skill Repo · ★ 180

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

API / SDK · ★ 73

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

Skill Repo · ★ 11

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

Data Tool

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

Payment Rail

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

Agent Framework · ★ 199

Circle's official agent toolkit: Circle CLI, policy-controlled Agent Wallets, gasless USDC Nanopayments, an x402 facilitator and an agent marketplace.

Wallet Infrastructure · ★ 30

Chainlink's hosted HTTP gateway and skill bundle: pay-per-call Data Streams prices and CRE-run onchain actions with gas covered, paid via x402 in USDC on Base.

API / SDK · ★ 10

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

Data Tool

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

Skill Repo · ★ 18

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

Payment Rail · ★ 4

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

MCP · ★ 1

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

Wallet Infrastructure · ★ 0

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

Developer Tool · ★ 51

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

Wallet Infrastructure

Coinbase Developer Platform wallet infrastructure built for AI agents, with spend caps, gasless Base settlement, and native x402.

Wallet Infrastructure

Privacy-preserving x402 payments for agents on Base, with stealth addresses and TEE-encrypted inference, no accounts or API keys.

API / SDK

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.

Developer Tool

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

Onchain Agent

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

Data Tool

Onchain intelligence API that attributes wallets to entities; agents can pay per request in USDC over x402.

Data Tool

Onchain market metrics (MVRV, exchange flows, supply distribution) sold per call over x402, no API key.

Data Tool

Web Search and Finance Research APIs that agents can call with no key and pay per request in USDC over x402.

API / SDK

Pay-per-query access to subgraphs on The Graph Network over x402, paid in USDC on Base with no API key.

Data Tool

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.

Payment Rail

Pay-per-article access to 100+ paywalled financial newsletters and podcasts, plus a structured stock-picks feed, over x402 or MCP.

Data Tool

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

Payment Rail

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.

Agent Marketplace

Read-only checks for x402 sellers: probes a live endpoint's HTTP 402 payment challenge, discovery metadata and schemas, without a wallet or a test payment.

Developer Tool

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

Agent Marketplace

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

Data Tool

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

Security Tool

Coinbase's remote MCP server: an agent signs in with Coinbase OAuth to trade crypto, US stocks/ETFs and futures, and pay for data over x402.

MCP