Hermes Keiros Labs Web Search

Give your Hermes agent live access to the web — powered by the Keiros Labs search API.

When your agent needs to look something up, this plugin answers with grounded, sourced results instead of stale training data. It works for both quick searches ("what's the latest Python release?") and deep page extraction ("summarize this RFC for me").

Why use this plugin?

Real answers from the live web. Your agent's training data ends months ago. This plugin connects it to Keiros Labs so it can answer questions about today's world — breaking news, current docs, recent releases, real-time events.

Cost-efficient. Keiros Labs offers web scraping at roughly 80% less than competing providers. All cached requests are 50% off. The free tier is generous enough to get started without a credit card.

Multiple API modes. Choose the endpoint that fits your budget and latency needs — lite (default), fast, search, answer, research, or extract. Swap between them with a single line in your config.

Search and extract in one. Some providers only search. This one does both — find information and pull full page content — so you don't need two plugins wired together.

Zero maintenance. The provider self-registers with Hermes at startup. There is nothing to configure beyond pasting your API key.

What you'll need

• Hermes agent installed and working (any platform — CLI, desktop, Telegram, Discord, etc.)
• A Keiros Labs API key (free tier available)

That's it. No other accounts, no credit card, no setup scripts.

Getting a Keiros Labs API key

1. Go to Keiros Labs in your browser
2. Sign up for a free account or log in if you already have one
3. Navigate to your dashboard or API keys section
4. Copy the key that appears

The free tier gives you a generous number of queries. You will be notified if you approach the limit — upgrade to a paid plan only if you need more.

Installation

One command

From inside your Hermes environment:

pip install hermes-keiroslabs-web-search

Or from source

git clone https://github.com/your-username/hermes-keiroslabs-web-search.git
cd hermes-keiroslabs-web-search
pip install .

Or by copying into Hermes directly

mkdir -p ~/.hermes/plugins/web/keiroslabs
cp hermes_keiroslabs_web_search/* ~/.hermes/plugins/web/keiroslabs/

The pip install method is recommended — it keeps the plugin up to date and discoverable.

Configuration

Three short steps. Everything happens in two files inside ~/.hermes/.

Step 1 — Add your API key

Open ~/.hermes/.env in any text editor and add one line:

KEIROLABS_API_KEY=your-api-key-here

Make sure there are no extra spaces or quotes around the value.

Step 2 — Enable the plugin

Open ~/.hermes/config.yaml and add hermes-keiroslabs-web-search to your enabled plugins:

plugins:
  enabled:
    - hermes-keiroslabs-web-search

If you already have other plugins enabled, just add this one to the list. If you have never enabled a plugin before, the plugins section might not exist yet — create it at the top level of the file and add both keys exactly as shown.

Step 3 — Tell Hermes to use it

In the same config.yaml file, under the web section, set the backend:

web:
  backend: keiroslabs

The full config.yaml will look something like this (your file may have other sections — that's fine):

plugins:
  enabled:
    - hermes-keiroslabs-web-search

web:
  backend: keiroslabs

Step 4 — Restart Hermes

Quit and restart your Hermes agent. On the next question that needs web access, the agent will use Keiros Labs.

Verifying it works

Ask your agent something that requires live web access:

> what is the latest stable version of Python?

> who won the most recent Formula 1 race?

> summarize the top story on Hacker News today

If the agent returns current, factual answers, the plugin is working.

You can also check with the Hermes tools picker:

hermes tools

Navigate to Web Search — you should see "Keiros Labs" listed with a green checkmark and "free tier available" badge.

How it works

When your agent calls web_search("some query"), the plugin sends the query to the Keiros Labs API and returns:

• A generated answer — Keiros Labs's summary of what it found, backed by the search results
• Supporting sources — links to the actual pages so the agent (and you) can verify claims

When your agent calls web_extract(url), the plugin sends the URL to the Keiros Labs API for full-page content extraction.

Under the hood, this uses httpx for HTTP requests. It is installed automatically as a dependency — you never need to think about it. No SDK should be installed separately.

Advanced configuration

Choosing an API endpoint

The default endpoint is lite — fast, cheap, and well-suited to most searches. You can override it in config.yaml:

web:
  backend: keiroslabs
  keiroslabs_endpoint: fast

Available endpoints:

Endpoint	Path	Description
lite	/v2/lite	Fast lightweight search (default)
fast	/v2/fast	Quick search with minimal latency
search	/search	Standard search with full results
answer	/answer	Detailed answer generation
research	/research	In-depth research with deep context
extract	/web-crawler	Content extraction from URLs
batch	/v2/batch	Batched queries for multiple searches

Using a custom API base URL

If you are using a self-hosted instance or a proxy, you can override the base URL:

web:
  backend: keiroslabs
  keiroslabs_base_url: https://your-proxy.example.com/api

The default is https://kierolabs.space/api.

Per-capability routing

You can use Keiros Labs for search only (or extract only) while routing the other capability to a different provider:

web:
  search_backend: keiroslabs     # Keiros Labs handles web_search
  extract_backend: firecrawl     # Firecrawl handles web_extract

Configuring via hermes tools

If you prefer the interactive terminal UI:

hermes tools

Navigate to Web Search, select Keiros Labs, and follow the prompts. The picker will ask for your API key and set everything up for you.

Troubleshooting

"KEIROLABS_API_KEY environment variable not set"

The plugin can't find your key. Check that:

• ~/.hermes/.env exists and has a line starting with KEIROLABS_API_KEY=
• There are no extra spaces or quotes around the value
• You restarted Hermes after adding the key

"hermes-keiroslabs-web-search is not enabled"

Hermes found the plugin but hasn't been told to activate it. Check that ~/.hermes/config.yaml contains:

plugins:
  enabled:
    - hermes-keiroslabs-web-search

"Invalid KEIROLABS_API_KEY" or "access denied"

Your API key may be incorrect or expired. Visit Keiros Labs, navigate to your dashboard, and verify your key is still active. Generate a new key if needed.

"Keiros Labs API: out of credits"

You have exhausted your free tier quota or paid plan credits. Visit Keiros Labs to upgrade your plan or wait for your quota to reset.

"Failed to connect to Keiros Labs API"

The Keiros Labs servers may be down, or your network may be blocking the connection. Check:

• Your internet connection is working
• You can reach https://kierolabs.space/api/health in a browser or with curl
• No firewall or VPN is blocking outbound HTTPS on port 443

The agent is not using the plugin

Make sure you restarted Hermes after making the configuration changes. Plugin discovery happens at startup.

Development

git clone https://github.com/your-username/hermes-keiroslabs-web-search.git
cd hermes-keiroslabs-web-search
pip install -e .
pytest

Tests use mocks so no API key or network access is needed to run the suite.