How to connect Lob to Hermes Agent
Connect Lob to Hermes with ClawLink: paste your Lob key once and 13 tools work from chat. No MCP server to run, nothing stored on your machine.
LobAPI KEYMCPDirect Mail Automation and Address Verification APIs.. Once connected, Hermes Agent can read and act on Lob from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent Lob 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 Lob setup: pair once in the browser and your always-on Hermes agent can act on Lob 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 Lob.
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 Lob
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with Lob?"
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 Lob in the ClawLink dashboard — paste your Lob API key once.
Verify the connection by asking Hermes:
Pull the relevant data from Lob, summarize it in plain English, and point out anything that needs attention.
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 Lob is connected in the dashboard, that agent calls the same 13 Lob tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
Lob MCP for Hermes
Looking for a Lob MCP server for Hermes Agent? ClawLink connects Lob to Hermes Agent and exposes 13 Lob tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw Lob integration works the same way.
What the Hermes Agent Lob integration can do
13 Lob tools are ready for Hermes Agent once the account is connected. The 10 below are the ones people reach for most; your agent can call all 13.
10 of 13 Lob tools for Hermes
| Tool | What it does |
|---|---|
Get domain lob_get_domain | Retrieve details for a single domain from Lob |
Get link lob_get_link | Retrieve a single shortened link |
List domains lob_list_domains | Retrieve a list of all created domains |
List links lob_list_links | Retrieve a list of shortened links |
List qr code analytics lob_list_qr_code_analytics | Retrieve a list of your QR codes and their analytics data |
List uploads lob_list_uploads | List uploads from Lob |
Validate identity lob_validate_identity | Validate whether a given name is associated with an address |
Create domain lob_create_domain | Add a new custom domain for creating custom links |
Create link lob_create_link | Create a shortened URL from a long URL using Lob's link shortening service |
Update link lob_update_link | Update any properties of a shortened link |
Try it: find the Lob tool you need
Browse the 10 Lob tools
Click any tool to see exactly what Hermes can do and copy a ready-to-use prompt.
Example prompts
Pull the relevant data from Lob, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Lob, summarize it in plain English, and point out anything that needs attention.
List the relevant items in Lob, group them by priority, and recommend what Hermes should do next.
List the relevant items in Lob, group them by priority, and recommend what Hermes should do next.
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 Lob working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the Lob API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Lob 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 Lob. | 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 Lob actions to the runtime in a format your agent can reliably use. | 13 tools for Lob are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes Lob 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 Lob in the browser, and the 13 tools above work from chat. There is no SDK and no config file, and the Lob 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 Lob
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 Lob 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 Lob tools
Lob 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 Lob 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.
Lob 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 Lob 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 Lob integration?
Yes. ClawLink is the fastest way to connect Hermes to Lob: link your Lob account once in the browser and Hermes Agent can call the Lob API through 13 ready-made tools — no custom code or token handling.
How do I connect Lob 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 Lob in the dashboard and Hermes can use it from the next message — no config files, and the Lob key you paste is stored server-side instead of in your environment.
How long does it take to connect Lob to Hermes Agent?
About two minutes. Sign in, click Connect next to Lob in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring Lob 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 Lob working from chat.
Hermes paired but still can't use Lob
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.
