Agentcash
- Merit-Systems/agentcash
Agentcash is a MCP server that calls x402-protected APIs with automatic payment handling for agent workflows.
About
Agentcash is a generic MCP server from Merit Systems that calls x402-protected APIs and handles payments automatically so your agent does not stop at a 402 paywall. developers experimenting with pay-per-use data, model, or tool APIs can register agentcash in Claude Code or similar clients instead of scripting wallet flows for every endpoint. The published package is npm agentcash at version 0.13.4 with stdio transport; wallet or provider setup details live in the GitHub repo rather than the minimal registry JSON. Use it when pricing validation already pointed to usage-based API costs and you want the agent to invoke paid routes safely during development. It is payment plumbing MCP, not a full billing dashboard for your own SaaS.
- npm agentcash MCP server v0.13.4 (stdio)
- Generic client for x402-protected APIs
- Automatic payment handling on eligible requests
- Merit-Systems open-source repo on GitHub
Agentcash by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
claude mcp add agentcash -- npx -y agentcashAdd your badge
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| Package | agentcash |
|---|---|
| Transport | STDIO |
| Auth | None |
| Repository | Merit-Systems/agentcash ↗ |
What it does
Let your agent call x402-protected paid APIs with automatic payment handling instead of wiring micropayment auth by hand.
Who is it for?
Best when you're wiring agents to x402 monetized endpoints and want a reusable MCP payment layer rather than custom scripts.
Skip if: Products that only need free public APIs with no micropayment or 402 gating.
What you get
Your MCP client can reach metered APIs with payments handled by Agentcash so integration experiments move faster.
- Agent-callable access to x402-gated APIs with payment handling
- Reusable MCP layer instead of per-API payment scripts
- Faster validation of paid third-party services from the agent
By the numbers
- Version 0.13.4; npm identifier agentcash; stdio transport; described as generic MCP for x402-protected APIs.
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FAQ
Who is Agentcash for?
Developers building agent workflows that must call x402-protected, pay-per-use HTTP APIs during integration work.
When should I use Agentcash?
Use it in build when you are connecting Claude Code or another MCP client to APIs that require automatic payment on 402 responses.
How do I add Agentcash to my agent?
Add the stdio npm package agentcash to your MCP configuration and complete wallet or payment setup per Merit-Systems/agentcash documentation.