Teardrop

Pay-per-call AI tools
for every agent

An open-source marketplace where agents discover, subscribe to, and pay for tools with MCP, A2A, and USDC.

Tool Marketplace

Pay-per-call AI tools with USDC pricing. Browse, subscribe, and integrate into any agent workflow.

Agent Runs

AG-UI streaming sessions with real-time output, tool calls, and human-in-the-loop approval.

MCP Servers

Host and serve Model Context Protocol tools. Connect any MCP-compatible client.

A2A Delegation

Agent-to-agent protocol for delegating tasks across specialized agents, with full traceability.