Shopping, payments and marketplaces.
Toll's live pre-sign check in front of an AI agent's wallet: viem, viem smart-account, ethers and x402 fetch wrappers that ask Toll (ALLOW / WARN / BLOCK, ERC-8265) before anything is signed on Robinhood Chain: transactions, messages, typed data, batches,
The checkbox CLI: auto-renewal law and subscription compliance checks (FTC ROSCA, California ARL, New York and other states) for Stripe Checkout params, pages, disclosures and emails, from a terminal, CI or an AI coding agent. Runs offline.
Spend limits for Coinbase's payments MCP: a per-payment cap and rolling 24h USDC budget per wallet
235 quant tools and 399 strategy sleeves, checked against QuantLib, statsmodels, arch or TA-Lib.
Varity's stdio MCP server for supported local AI coding clients.
Customer-run MCP server for the Grade SDK v1 API
Go/no-go check for AI-built apps. Finds production problems locally and returns fixes.
NONAGON LINK MCP server — let AI agents discover and pay for APIs with USDC (x402)
TON MCP Server - Model Context Protocol server for TON blockchain wallet operations
Coinbase for agents — CLI and MCP server for trading, wallets, payments, and onchain across the Coinbase platform
Secure MCP router providing access to AgentPMT's pay-per-use AI tools marketplace.
Discover tests, skip reasons and affected tests, and compare inventories without running tests.
Human-approved blockchain transactions for AI agents. Agent proposes a tx, human reviews and signs it from the [web app](https://clanker-wallet.xyz). All communication is end-to-end encrypted. EVM chains take raw transactions; bitcoin and chia take transf
Make AI apps answer your way, check with you before acting, and get approvals on your phone.
Comprehensive security sanitization library for Model Context Protocol (MCP) servers with trusted security libraries
ZEAM :: Pass for your own server: a paywall (x402; you keep 90.01%), a key gate, or both, for your MCP and HTTP tools. Runs in your process with your keys.
Generic MCP server for calling x402-protected APIs with automatic payment handling
MCP server for a project's context (AGENTS.md), memory, and identity — base or drop-in extension.
MCP payments middleware — paywall your tools in 5 lines. AP2 + x402 compatible.
A command line tool for setting up PayPal MCP server