What this skill does
Perform structured HTTP/HTTPS requests (GET, POST, PUT, DELETE) with custom headers and JSON body support.
Api Tester is part of the Developer Tools category — developer tools that help your agent write, review, debug, and ship code. You can install it on its own or alongside other developer tools skills from the OpenClaw catalog.
How to install Api Tester
The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:
- Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
- Open the in-app Skills panel.
- Search for
api-testerand click Install. - The skill activates automatically when an incoming message matches its description.
Install from the command line
If you already run the OpenClaw CLI, add Api Tester with a single command:
openclaw skills add api-tester
This pulls api-tester from ClawHub and installs it into ~/.openclaw/skills/api-tester/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use Api Tester
Once installed, Api Tester activates on its own: when an incoming message on WhatsApp, Telegram, Slack, Discord, Feishu or Line matches the skill's description, your OpenClaw agent loads it and runs the workflow. You can also trigger it explicitly by describing the task in chat. No extra configuration is required after install.
Manual install (advanced)
If you prefer manual installation:
- Click the Download .zip button above to grab
api-tester-1.0.0.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/api-tester/(create the directory if it does not exist). - Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.
Frequently asked questions
How do I install Api Tester?
Install Api Tester in the OpenClaw Easy desktop app by opening the Skills panel, searching for api-tester, and clicking Install. From a terminal you can run: openclaw skills add api-tester. Either way the skill is placed in ~/.openclaw/skills/api-tester/.
Is Api Tester free?
Yes. Api Tester is free and open-source, distributed under the Apache-2.0 license through ClawHub. No account or payment is required to download or run it.
What does Api Tester do?
Perform structured HTTP/HTTPS requests (GET, POST, PUT, DELETE) with custom headers and JSON body support.
Related: more developer tools skills
If Api Tester looks useful, you may also want to check out other developer tools skills in the OpenClaw catalog:
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models