How to connect OneSignal REST API to Hermes Agent
Connect OneSignal REST API to Hermes with ClawLink: paste your OneSignal REST API key once and 15 tools work from chat. No MCP server to run, nothing stored on your machine.
OneSignal REST APIAPI KEYMCPThe OneSignal REST API enables developers to programmatically send push notifications, emails, and SMS, manage users and subscriptions, and configure apps.. Once connected, Hermes Agent can read and act on OneSignal REST API from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent OneSignal REST API 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 OneSignal REST API setup: pair once in the browser and your always-on Hermes agent can act on OneSignal REST API 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 OneSignal REST API.
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 OneSignal REST API
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with OneSignal REST API?"
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 OneSignal REST API in the ClawLink dashboard — paste your OneSignal REST API API key once.
Verify the connection by asking Hermes:
Pull the relevant data from OneSignal REST API, 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 OneSignal REST API is connected in the dashboard, that agent calls the same 15 OneSignal REST API tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
OneSignal REST API MCP for Hermes
Looking for a OneSignal REST API MCP server for Hermes Agent? ClawLink connects OneSignal REST API to Hermes Agent and exposes 15 OneSignal REST API tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw OneSignal REST API integration works the same way.
What the Hermes Agent OneSignal REST API integration can do
15 OneSignal REST API tools are ready for Hermes Agent once the account is connected. The 13 below are the ones people reach for most; your agent can call all 15.
13 of 15 OneSignal REST API tools for Hermes
| Tool | What it does |
|---|---|
Fetch user identity onesignal_rest_api_fetch_user_identity | Retrieve all aliases for a user identified by a specific alias |
Get eligible iams onesignal_rest_api_get_eligible_iams | Retrieve the manifest of In-App Messages that a subscription is eligible to display |
View an app onesignal_rest_api_view_an_app | Retrieve metadata for a single OneSignal app |
View device onesignal_rest_api_view_device | Retrieve details of a specific device (player) |
View devices onesignal_rest_api_view_devices | Retrieve a paginated list of devices (players) for a OneSignal app |
View notifications onesignal_rest_api_view_notifications | Retrieve details of multiple notifications |
View segments onesignal_rest_api_view_segments | View segments for a OneSignal app |
Begin live activity onesignal_rest_api_begin_live_activity | Start a Live Activity on OneSignal |
Create notification onesignal_rest_api_create_notification | Create and send a OneSignal push notification |
Create template onesignal_rest_api_create_template | Create reusable message templates for push, email, and SMS channels |
Create user onesignal_rest_api_create_user | Create a OneSignal user with optional subscriptions and aliases |
Update device onesignal_rest_api_update_device | Update properties of an existing device |
Update subscription onesignal_rest_api_update_subscription | Update an existing subscription's properties |
Try it: find the OneSignal REST API tool you need
Browse the 13 OneSignal REST API 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 OneSignal REST API, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from OneSignal REST API, summarize it in plain English, and point out anything that needs attention.
Use OneSignal REST API to view an app and walk me through the result in plain English.
Use OneSignal REST API to view device 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 OneSignal REST API working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the OneSignal REST API API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected OneSignal REST API 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 OneSignal REST API. | 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 OneSignal REST API actions to the runtime in a format your agent can reliably use. | 15 tools for OneSignal REST API are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes OneSignal REST API 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 OneSignal REST API in the browser, and the 15 tools above work from chat. There is no SDK and no config file, and the OneSignal REST API 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 OneSignal REST API
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 OneSignal REST API 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 OneSignal REST API tools
OneSignal REST API 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 OneSignal REST API 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.
OneSignal REST API 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 OneSignal REST API 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 OneSignal REST API integration?
Yes. ClawLink is the fastest way to connect Hermes to OneSignal REST API: link your OneSignal REST API account once in the browser and Hermes Agent can call the OneSignal REST API API through 15 ready-made tools — no custom code or token handling.
How do I connect OneSignal REST API 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 OneSignal REST API in the dashboard and Hermes can use it from the next message — no config files, and the OneSignal REST API key you paste is stored server-side instead of in your environment.
How long does it take to connect OneSignal REST API to Hermes Agent?
About two minutes. Sign in, click Connect next to OneSignal REST API in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring OneSignal REST API 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 OneSignal REST API working from chat.
Hermes paired but still can't use OneSignal REST API
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.
