Agent Pay (rumblingb) MCP Server

Trust + capability vault + governed paid execution for agents. AgentPay is the authority layer between an AI agent and the real world.

People who work with Agentpay and Casper and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-29 · ★ 2 · VERIFIED 2026-09-30

NOASSERTION · TypeScript servers · how we verify → /methodology

01 · Install Agent Pay (rumblingb)

before you install - you'll need

Set AGENTPAY_API_KEY, AGENTPAY_MERCHANT_ID, CASPER_PRIVATE_KEY_HEX, CASPER_RECIPIENT_PUBLIC_KEY_HEX, BEE_CASPER_RECEIPT_ID before connecting.

Claude Code

claude mcp add rumblingb-agentpay --transport http https://api.agentpay.so/api/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rumblingb-agentpay": {
      "url": "https://api.agentpay.so/api/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://api.agentpay.so/api/mcp

transport: streamable-http

endpoint alive - authentication required · probed 2026-09-30

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to api.agentpay.so

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package @agentpayxyz/mcp-server - the @agentpayxyz scope differs from the repo owner (rumblingb); confirm it's the project's official package

registry namespace io.github.Rumblingb is GitHub-verified and matches the repo owner

03 · What Agent Pay (rumblingb) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

casper-buildathon-demo-2026-07-08 · 2026-07-08

Local proof demo for Bee + Clickey + AgentPay Casper Agentic Buildathon packet. Generated from the clean codex/casper-buildathon-submission branch. No Casper broadcast is included in this video asset.

04 · Who maintains Agent Pay (rumblingb)

AgentPay is maintained by rumblingb. We track 6 MCP servers from rumblingb - 5 actively maintained, 8 combined GitHub stars, oldest repo from Feb 2026.

05 · Facts

repository: github.com/rumblingb/agentpay
category: finance - actively maintained as of 2026-09-30.
release cadence: 1 release in the last 90 days (latest 2026-07-08)
registry: io.github.Rumblingb/agentpay (active, first published 2026-04-18 · 2 versions)
packages: npm:@agentpayxyz/mcp-server

06 · Agent Pay (rumblingb) FAQ

What is Agent Pay (rumblingb)?

Trust + capability vault + governed paid execution for agents. AgentPay is the authority layer between an AI agent and the real world.

Is Agent Pay (rumblingb) still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-29 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install Agent Pay (rumblingb)?

Run `npx -y @agentpayxyz/mcp-server`. The README documents 5 environment variables (AGENTPAY_API_KEY, AGENTPAY_MERCHANT_ID, CASPER_PRIVATE_KEY_HEX…) to set first. Set AGENTPAY_API_KEY, AGENTPAY_MERCHANT_ID, CASPER_PRIVATE_KEY_HEX, CASPER_RECIPIENT_PUBLIC_KEY_HEX, BEE_CASPER_RECEIPT_ID before connecting. You can also paste the ready-made client config above.

Does Agent Pay (rumblingb) require authentication?

Yes - when we probed the endpoint on 2026-09-30, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

07 · Alternatives to Agent Pay (rumblingb)

Alternatives to Agent Pay (rumblingb)

Maintained finance servers if Agent Pay (rumblingb) isn't the fit.

Pairs well with

Servers that cover what Agent Pay (rumblingb) doesn't - only shown when the pairing reason fits the companion.

More finance MCP servers · Polymarket Toolkit · The Undesirables TCG Oracle · Organizze · Personal Finance · SatGate – Economic Firewall for AI Agents

More TypeScript MCP servers · Runapi MCP · Browser Agent · Runframe MCP Server · Agent Wormhole · see all