Simplero Python API Docs | dltHub

Simplero API documentation is available on GitHub; API keys are created in the Simplero dashboard under Integrations for software interaction. Simplero uses Stripe for payment processing. The API key is copied from the generated key in the dashboard. The REST API base URL is https://simplero.com/api/v1 and all requests require an API key (HTTP Basic Auth username or X-API-Key header) and a User-Agent header.

dlt is an open-source Python library that handles authentication, pagination, and schema evolution automatically. dlthub provides AI context files that enable code assistants to generate production-ready pipelines. Install with uv pip install "dlt[workspace]" and start loading Simplero data in under 10 minutes.

---

What data can I load from Simplero?

Here are some of the endpoints you can load from Simplero:

---

How do I authenticate with the Simplero API?

Requests are authenticated with the API key either as the HTTP Basic Auth username (password left empty) or via the X-API-Key header. A custom User-Agent string identifying the application and contact email must also be sent.

1. Get your credentials

1. Log into your Simplero admin account. 2) Navigate to Settings > Integrations. 3) In the API Keys section click the "+ Create new API Key" button. 4) Name the key, confirm, and copy the generated key using the clipboard icon. 5) Use this key as the api_key in your dlt configuration.

2. Add them to .dlt/secrets.toml

Copy
[sources.simplero_source]
api_key = "your_simplero_api_key_here"

dlt reads this automatically at runtime — never hardcode tokens in your pipeline script. For production environments, see setting up credentials with dlt for environment variable and vault-based options.

---

How do I set up and run the pipeline?

Set up a virtual environment and install dlt:

Copy
uv venv && source .venv/bin/activate
uv pip install "dlt[workspace]"

1. Install the dlt AI Workbench:

Copy
dlt ai init --agent <your-agent> # <agent>: claude | cursor | codex

This installs project rules, a secrets management skill, appropriate ignore files, and configures the dlt MCP server for your agent. Learn more →

2. Install the rest-api-pipeline toolkit:

Copy
dlt ai toolkit rest-api-pipeline install

This loads the skills and context about dlt the agent uses to build the pipeline iteratively, efficiently, and safely. The agent uses MCP tools to inspect credentials — it never needs to read your secrets.toml directly. Learn more →

3. Start LLM-assisted coding:

Use /find-source to load data from the Simplero API into DuckDB.

The rest-api-pipeline toolkit takes over from here — it reads relevant API documentation, presents you with options for which endpoints to load, and follows a structured workflow to scaffold, debug, and validate the pipeline step by step.

4. Run the pipeline:

Copy
python simplero_pipeline.py

If everything is configured correctly, you'll see output like this:

Copy
Pipeline simplero_pipeline load step completed in 0.26 seconds
1 load package(s) were loaded to destination duckdb and into dataset simplero_data
The duckdb destination used duckdb:/simplero.duckdb location to store data
Load package 1749667187.541553 is LOADED and contains no failed jobs

Inspect your pipeline and data:

Copy
dlt pipeline simplero_pipeline show

This opens the Pipeline Dashboard where you can verify pipeline state, load metrics, schema (tables, columns, types), and query the loaded data directly.

---

Python pipeline example

This example loads customers and lists from the Simplero API into DuckDB. It mirrors the endpoint and data selector configuration from the table above:

Copy
import dlt
from dlt.sources.rest_api import RESTAPIConfig, rest_api_resources

@dlt.source
def simplero_source(api_key=dlt.secrets.value):
    config: RESTAPIConfig = {
        "client": {
            "base_url": "https://simplero.com/api/v1",
            "auth": {
                "type": "api_key",
                "api_key": api_key,
            },
        },
        "resources": [
            {"name": "customers", "endpoint": {"path": "customers.json"}},
            {"name": "lists", "endpoint": {"path": "lists.json"}}
        ],
    }
    yield from rest_api_resources(config)


def get_data() -> None:
    pipeline = dlt.pipeline(
        pipeline_name="simplero_pipeline",
        destination="duckdb",
        dataset_name="simplero_data",
    )
    load_info = pipeline.run(simplero_source())
    print(load_info)

To add more endpoints, append entries from the resource table to the "resources" list using the same name, path, and data_selector pattern.

---

How do I query the loaded data?

Once the pipeline runs, dlt creates one table per resource. You can query with Python or SQL.

Python (pandas DataFrame):

Copy
import dlt

data = dlt.pipeline("simplero_pipeline").dataset()
sessions_df = data.customers.df()
print(sessions_df.head())

SQL (DuckDB example):

Copy
SELECT * FROM simplero_data.customers LIMIT 10;

In a marimo or Jupyter notebook:

Copy
import dlt

data = dlt.pipeline("simplero_pipeline").dataset()
data.customers.df().head()

See how to explore your data in marimo Notebooks and how to query your data in Python with dataset.

---

What destinations can I load Simplero data to?

dlt supports loading into any of these destinations — only the destination parameter changes:

Change the destination in dlt.pipeline(destination="snowflake") and add credentials in .dlt/secrets.toml. See the full destinations list.

---

Next steps

Continue your data engineering journey with the other toolkits of the dltHub AI Workbench:

• data-exploration — Build custom notebooks, charts, and dashboards for deeper analysis with marimo notebooks.
• dlthub-runtime — Deploy, schedule, and monitor your pipeline in production.

Copy
dlt ai toolkit data-exploration install
dlt ai toolkit dlthub-runtime install

• How to deploy a pipeline
• How to explore your data in marimo Notebooks
• How to query your data in Python with dataset
• Join the dlt community on Slack