Onchain agents for payments

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

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

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

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

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

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.

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

Crypto research and data platform covering fundraising, metrics, signals, and news, with API-key and x402 agent access.

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

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

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.

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

Agent that deploys tokens on Base when tagged on Farcaster.

A platform for deploying autonomous AI trading agents on Injective with onchain identity, order-book trading, and MCP framework support.

A set of MCP-style Agent Skills that let AI agents access Binance spot, derivatives, margin, Alpha market data, and asset management via standardized APIs.

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

Visa protocol that lets merchants authenticate trusted AI shopping agents via cryptographic signatures, with x402 interoperability into traditional payment rails.

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

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

An installable skill and unified API giving AI agents access to crypto market, on-chain, social, and prediction-market data across 40+ chains.

One-click deployment of Web3-native AI agents to Line, Kakao, and WhatsApp, each with its own wallet and onchain execution.

DePIN infrastructure providing agents with identity, wallets, and pay-per-request onchain settlement, with peaqOS skills for AI coding tools.

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

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

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

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

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.

Research report analyzing on-chain AI-agent payments, finding agents settled roughly $73M across about 176M transactions over twelve months with USDC dominant.

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.

A Solana coordination protocol and marketplace where agents claim escrowed tasks, prove completion with ZK proofs, and settle payment on-chain.

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

A DeFAI platform to create no-code AI agents that translate natural-language intent into onchain DeFi strategies and trades.

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

Ripple's starter kit for building agentic payment apps on the XRP Ledger, with x402 payments in XRP and RLUSD, an XRPL docs MCP server, and Claude wallet/payment skills.

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

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

Non-custodial wallet MCP for AI agents to invoice, get paid, and spend on other agents/APIs, with human-set limits.

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.

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

Official Octav MCP exposing portfolio holdings, DeFi positions, NAV, and transaction history across 20+ chains.

Official remote MCP for managing QuickNode blockchain endpoints, rate limits, security, and billing via natural language.

GoPlausible's Algorand MCP: agent wallets, transaction building/signing, TEAL, DEX aggregation, full Algod/Indexer access.

Plugin-based monorepo MCP: EVM+Solana wallets, DEX aggregation, x402 payments, CEX trading, market data, bridges.

Official Circle skill repo for USDC payments, cross-chain transfers, and wallet integration.

Official CryptoQuant MCP server exposing on-chain metrics like MVRV, SOPR, and exchange flows to agents.

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

Bitcoin-native MCP server: BTC/STX wallets, L1 reads and transfers, Stacks, sBTC, and x402 payments.

Bitcoin Lightning wallet MCP and CLI for agent payments: invoices, sends, and L402 support.

TRON infrastructure MCP (hosted SSE + local stdio): energy/bandwidth prices, resource optimization, and TRC-20 stablecoin payments.

PayRam's MCP server for self-hosted crypto payments: hosted endpoints and agent payment workflows.

Robinhood's permissionless, EVM-compatible Arbitrum L2 for tokenized real-world assets and 24/7 onchain markets.

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

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

Arbitrum-native, MCP-first agent framework with A2A and x402 support, backed by an Arbitrum Foundation grant program.

Crypto-to-gift-card and mobile top-up commerce platform with a Skills/MCP/API surface for agents to buy real-world goods with stablecoins.

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

Solana Foundation community registry of stablecoin-gated (USDC/USDT) APIs the pay CLI and AI agents can search, route to, and pay through.

Stablecoin payments infrastructure (acquired by Stripe) offering an orchestration, issuance, cards, and wallet API for moving money onchain.

REST API suite (accounts, cards, yield, trading data) for building stablecoin-native fintech on Solana, from the Squads Labs team.

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

MCP server bridging AI assistants to the x402 micropayment protocol on Solana, so agents can discover and pay for services in USDC.

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

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

Hashgraph Online MCP for agent discovery, chat, registration, workflows, and Hedera agent interactions.

Official Alby MCP connecting Bitcoin Lightning wallets to agents via Nostr Wallet Connect.

Official MoonPay skill repo for crypto onramps, wallet ops, swaps, and prediction-market trading.

Ecosystem explorer for the Machine Payments Protocol (MPP) on Tempo: agent payment servers, micropayments, and volume.

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

One prepaid balance that lets AI agents buy data, APIs, and tools per call - no API keys, no subscriptions.

MetaMask's own MCP server for generating x402 payment headers signed by a supplied private key.

Toolkit for AI agents managing Solana yield-farming positions via the Breeze protocol, in MCP, x402, and SKILL.md form.

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

Official NEAR AI marketplace where agents bid on posted tasks and get paid in NEAR via NEAR Intents.

Real-time Ethereum L2 (~10ms blocks) with a native agent stack: the MOSS embedded wallet lets agents act under scoped, revocable permission policies — spend caps, contract allowlists, and expiry — without ever touching your keys.

Specification for the Payment HTTP auth scheme (Multi-Party Payments) from Tempo, the Stripe/Paradigm-backed payments L1.

Official Node.js SDK for Virtuals' Agent Commerce Protocol — event-driven agent-to-agent job and escrow flows.

Lightning Labs toolkit giving LangChain agents Bitcoin/Lightning balance access and L402-authenticated API calls.

Official BlockBeats MCP: crypto newsflashes, articles, market metrics, ETF flows, and macro signals.

Open-source MCP server for the LNbits Lightning accounts system: wallet balances, payments, and admin tools.

Official Sperax MCP for USDs/SPA protocol data: peg health, collateral, yield strategies, and vault risk on Arbitrum and BNB Chain.

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

Official MCP server for BlindPay's stablecoin payment rails: payouts, payins, virtual accounts, and FX quotes.

Zero-config Bitcoin data MCP: fees, mempool, blocks, transactions, mining, price, and supply.

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

Real-time token-streaming protocol enabling per-second payment flows, usable as an agent subscription/payroll primitive.

Solana DEX smart-money signal MCP server (whale accumulation, divergence, BTC regime) sold pay-per-call via x402.

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

Official Polygon Labs CLI giving AI agents session-scoped wallets, x402 payments, and ERC-8004 identity in one install.

Cardano-based payment and identity protocol letting AI agents pay each other via escrow with on-chain audit trails.

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

L402 payments platform and MCP server letting agents pay for API access with Bitcoin Lightning or stablecoins.

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.

Framework and tooling for building AI agents for onchain commerce.

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

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

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

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.

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

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

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

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

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