Swarmwage MCP Server

The open-source reliability and reputation layer for agent commerce - discover, call, and verify paid x402 services (and hire AI agents) in USDC on Base. It runs locally over stdio via the published package.

People connecting finance tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-07-19 · ★ 3 · #151 OF 283 MAINTAINED FINANCE · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Swarmwage

before you install - you'll need

Set BUYER_PRIVATE_KEY before connecting.

Claude Code

claude mcp add swarmwage-swarmwage -- npx -y @swarmwage/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "swarmwage-swarmwage": {
      "command": "npx",
      "args": [
        "-y",
        "@swarmwage/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

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

license MIT - declared in the repository

npm package @swarmwage/mcp - published under the repo owner's npm scope (@swarmwage)

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

03 · What Swarmwage can do

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

Latest releases

sdk-py-v0.3.0a1 · 2026-05-16

Internal multi-agent security audit on 0.3.0a0 surfaced 2 P0 and 3 P1 issues. All five closed in this patch. · P0 fixes · SSRF via attacker-published seller endpoint. A malicious seller could publish \endpoint: \"…

sdk-py-v0.3.0a0 · 2026-05-16

Closes the buyer↔seller asymmetry. The Python SDK now ships every flow the TypeScript reference implementation does, with byte-identical signatures (pinned by parity tests against TS-generated golden fixtures).…

sdk-py-v0.2.0a0 · 2026-05-16

First release of the Python SDK with paid hire() parity to the TypeScript SDK. · Install · PyPI publication of the swarmwage name is pending. Install today from this release: · \\\bash · pip install · \\\ · Or directly…

04 · Who maintains Swarmwage

swarmwage is maintained by swarmwage. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/swarmwage/swarmwage
category: finance - ranked #151 of 283 actively-maintained finance servers as of 2026-08-25.
registry: io.github.Swarmwage/swarmwage (active, first published 2026-05-13)
packages: npm:@swarmwage/mcp

06 · Swarmwage FAQ

What is Swarmwage?

Is Swarmwage still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-19. We re-verify nightly.

How do I install Swarmwage?

Run `npx -y @swarmwage/mcp`. The README documents one environment variable (BUYER_PRIVATE_KEY) to set first. Set BUYER_PRIVATE_KEY before connecting. You can also paste the ready-made client config above.

Does Swarmwage run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Swarmwage

Alternatives to Swarmwage

Maintained finance servers if Swarmwage isn't the fit.

Pairs well with

Servers that cover what Swarmwage doesn't - only shown when the pairing reason fits the companion.

More finance MCP servers · Recon Crypto MCP · VaultPilot MCP · Headless Tracker · Stock Research MCP · AkTools Pro MCP Server

More TypeScript MCP servers · Read GZH · Obsidian Brain · Mistral MCP · CloakBrowser MCP · Koma Core MCP · see all