How to connect MXToolbox to Hermes Agent
Connect MXToolbox to Hermes with ClawLink: paste your MXToolbox key once and 13 tools work from chat. No MCP server to run, nothing stored on your machine.
MXToolboxAPI KEYMCPMxToolbox provides a suite of network diagnostic and monitoring tools, including DNS lookups, blacklist checks, and email health analysis.. Once connected, Hermes Agent can read and act on MXToolbox from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent MXToolbox access start with registering your own OAuth app or pasting API keys into env files, then leave the token refresh and tool wiring to you. ClawLink gives Hermes a more practical MXToolbox setup: pair once in the browser and your always-on Hermes agent can act on MXToolbox for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself.
Setup
It takes three steps to connect Hermes to MXToolbox.
1Install and pair
Install the ClawLink plugin, then pair Hermes with a one-time browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable- 2
Connect MXToolbox
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with MXToolbox?"
Install by command
The prompt above walks Hermes through this. By hand, it is four commands and a browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable
hermes clawlink begin # prints an approval link — open it and approve
hermes clawlink finish # after approving in the browser
hermes clawlink testThen connect MXToolbox in the ClawLink dashboard — paste your MXToolbox API key once.
Verify the connection by asking Hermes:
Use MXToolbox to lookup bimi record and walk me through the result in plain English.
Using a different agent?
The Hermes plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:
npx -y @useclawlink/cli loginlogin opens the same browser approval and stores a credential locally. Once MXToolbox is connected in the dashboard, that agent calls the same 13 MXToolbox tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
MXToolbox MCP for Hermes
Looking for a MXToolbox MCP server for Hermes Agent? ClawLink connects MXToolbox to Hermes Agent and exposes 13 MXToolbox tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw MXToolbox integration works the same way.
What the Hermes Agent MXToolbox integration can do
13 MXToolbox tools are ready for Hermes Agent once the account is connected.
All 13 MXToolbox tools for Hermes
| Tool | What it does |
|---|---|
Lookup bimi record mx_toolbox_lookup_bimi_record | Retrieves BIMI (Brand Indicators for Message Identification) record and diagnostic information |
Lookup blacklist mx_toolbox_lookup_blacklist | Perform a blacklist check on a domain or IP |
Lookup dkim mx_toolbox_lookup_dkim | Retrieve DKIM (DomainKeys Identified Mail) records for a domain |
Lookup dmarc mx_toolbox_lookup_dmarc | Retrieves DMARC (Domain-based Message Authentication, Reporting & Conformance) records for a |
Lookup dns mx_toolbox_lookup_dns | Performs comprehensive DNS health check and retrieves name server records for a domain |
Lookup http mx_toolbox_lookup_http | Perform an HTTP test on a domain |
Lookup mta sts record mx_toolbox_lookup_mta_sts_record | Lookup MTA-STS record for a domain |
Lookup mx mx_toolbox_lookup_mx | Retrieves MX (Mail Exchange) records for a domain |
Lookup ping mx_toolbox_lookup_ping | Performs a ping test to check network connectivity and measure round-trip time to a domain or |
Lookup smtp mx_toolbox_lookup_smtp | Perform an SMTP connectivity test on a domain |
Lookup spf mx_toolbox_lookup_spf | Retrieve SPF records for a specified domain |
Monitor status mx_toolbox_monitor_status | Retrieves the current status of all monitors configured in the MX Toolbox account |
Usage check mx_toolbox_usage_check | Retrieve API usage statistics for DNS and network lookups |
Try it: find the MXToolbox tool you need
Browse the 13 MXToolbox tools
Click any tool to see exactly what Hermes can do and copy a ready-to-use prompt.
Example prompts
Use MXToolbox to lookup bimi record and walk me through the result in plain English.
Use MXToolbox to lookup blacklist and walk me through the result in plain English.
Use MXToolbox to lookup dkim and walk me through the result in plain English.
Use MXToolbox to lookup dmarc and walk me through the result in plain English.
ClawLink vs. building it yourself
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want MXToolbox working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the MXToolbox API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected MXToolbox account becomes available to the agent without you building credential management. |
| Ongoing maintenance | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for MXToolbox. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| Agent usability | You still need to expose the right MXToolbox actions to the runtime in a format your agent can reliably use. | 13 tools for MXToolbox are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes MXToolbox to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for Hermes Agent users instead. You install the plugin once, connect MXToolbox in the browser, and the 13 tools above work from chat. There is no SDK and no config file, and the MXToolbox key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full Composio alternatives comparison.
Troubleshooting
Hermes paired but still can't use MXToolbox
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
Connection succeeds but no tools appear
Reconnect MXToolbox from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.
"Tool schema not loaded yet" error when calling MXToolbox tools
MXToolbox tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every MXToolbox call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.
MXToolbox returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.
API key setup works but results look incomplete
Double-check that the API key for MXToolbox has the right scopes or account access. A valid key can still be too limited for some reads or writes.
FAQ
Is there a Hermes Agent MXToolbox integration?
Yes. ClawLink is the fastest way to connect Hermes to MXToolbox: link your MXToolbox account once in the browser and Hermes Agent can call the MXToolbox API through 13 ready-made tools — no custom code or token handling.
How do I connect MXToolbox to Hermes with ClawLink?
Install the plugin with hermes plugins install ClawLink-HQ/hermes-plugin --enable, then pair once: run hermes clawlink begin, approve the link in your browser, and run hermes clawlink finish. Connect MXToolbox in the dashboard and Hermes can use it from the next message — no config files, and the MXToolbox key you paste is stored server-side instead of in your environment.
How long does it take to connect MXToolbox to Hermes Agent?
About two minutes. Sign in, click Connect next to MXToolbox in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring MXToolbox up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want MXToolbox working from chat.
Hermes paired but still can't use MXToolbox
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
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