Payments agents on Solana

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.

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.

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

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

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

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.

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.

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

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

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

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

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.

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

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

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.

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.

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

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.

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

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

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

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.

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

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

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