It reduces the risk of an agent spending more than intended by enforcing its allowance on Solana and separating that allowance from the owner's funds.

onchain-agent-wallets — MCP server by nirholas

onchain-agent-wallets

onchain-agent-wallets is an MCP server for Claude Code from nirholas/onchain-agent-wallets. Its token cost is not measured, scanned A, original, Apache-2.0.

A local service that gives an AI agent a Solana wallet with an on-chain spending allowance rather than unrestricted access to the owner's money. It provides spending limits and other controls for agent payments.

In plain words

What is it for?: Use it as the wallet service behind an agent that needs to make controlled Solana or x402 payments.
Why use it?: It reduces the risk of an agent spending more than intended by enforcing its allowance on Solana and separating that allowance from the owner's funds.

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the onchain-agent-wallets plugin — 1 skill, 1 MCP server shipped together

Good fit Use it as the wallet service behind an agent that needs to make controlled Solana or x402 payments.

Compare 6 mcp servers from other repositories ↓

Install with agentmods

npx agentmods add mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/nirholas/onchain-agent-wallets

Made for: Claude Code.

Or install onchain-agent-wallets, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets/github.svg)](https://agentmods.dev/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets)

Your own site

<a href="https://agentmods.dev/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets"><img src="https://agentmods.dev/badge/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets"><img src="https://agentmods.dev/badge/mcp/nirholas/onchain-agent-wallets/onchain-agent-wallets-onchain-agent-wallets.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

onchain-agent-wallets scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/onchain-agent-wallets/.mcp.json · 9 lines

What it actually says

{
  "onchain-agent-wallets": {
    "command": "npx",
    "args": [
      "-y",
      "@three-ws/onchain-agent-wallets"
    ]
  }
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

today First seen · 9 lines scan A cf2195521d28

Subscribe to this mod's changes

onchain-agent-wallets is an MCP server published in the GitHub repository nirholas/onchain-agent-wallets (9 stars, last pushed today), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-10.

Finance and fintech Guardrails Web3 and blockchain agent-wallet ai-agents mcp solana x402

onchain-agent-wallets next to 6 mcp servers from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
onchain-agent-walletsnirholas/onchain-agent-wallets	MCP server	9	today	Apache-2.0	A	—	Claude Code
x402-paymentsnirholas/x402-payments-mcp	MCP server	9	today	Apache-2.0	A	—	Claude Code
clawswapWarTech9/clawswap-mcp	MCP server	2	8mo ago	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
x402-commercenirholas/x402-mcp-commerce	MCP server	8	today	Apache-2.0	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
ibm-x402-mcpnirholas/ibm-x402-mcp	MCP server	9	today	Apache-2.0	A	—	Claude Code
x402-commerce-solananirholas/x402-mcp-commerce	MCP server	8	today	Apache-2.0	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode
agentpayup2itnow0822/agentpay-mcp	MCP server	8	2d ago	MIT	A	—	Claude Code, Codex, Cursor, Gemini CLI, OpenCode