Waitlist Python API Docs | dltHub

Build a Waitlist-to-database pipeline in Python using dlt with AI harness support for Claude Code, Cursor, and Codex.

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Waitlist is a platform providing APIs to manage waitlists, signups, and leaderboard data for developers. The REST API base URL is https://api.getwaitlist.com/api/v1/ and Authenticated endpoints require an API key in the request 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 add "dlt[hub]" and start loading Waitlist data in under 10 minutes.


What data can I load from Waitlist?

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

ResourceEndpointMethodData selectorDescription
subscribers/waitlist/{waitlist-key}/subscribersGETdata.subscribersRetrieves a paginated list of subscribers
waitlists/waitlistsGETRetrieves a list of waitlists
waitlist/api/v1/waitlistGETRetrieves waitlist information
leaderboard/api/v1/waitlist/leaderboardGETReturns leaderboard for a waitlist
subscribers/api/v1/subscribersGETRetrieves list of subscribers (authenticated)

How do I authenticate with the Waitlist API?

Authenticated routes require an API key passed in the request header. Generate the key via the dashboard's My Account section.

1. Get your credentials

To obtain API credentials, navigate to the Account Settings or Dashboard within your Waitlist provider's platform (e.g., GetWaitlist or Waitlister). Look for a section labeled 'API', 'API Keys', or 'Integrations'. You may be prompted to provide a name for the key; once generated, copy the API key immediately as it is often displayed only once. Depending on the provider, you may need an 'Account API key' for broad access or a 'Per-waitlist API key' for restricted access.

2. Add them to .dlt/secrets.toml

[sources.waitlist_source] api_key = "your_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:

uv init uv add "dlt[hub]"

1. Install the dlt AI harness:

uv run dlthub 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:

uv run dlthub ai toolkit install rest-api-pipeline

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 Waitlist 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:

uv run python waitlist_pipeline.py

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

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

Inspect your pipeline and data:

uv run dlthub 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 /sign-up and /subscribers from the Waitlist API into DuckDB. It mirrors the endpoint and data selector configuration from the table above:

import dlt from dlt.sources.rest_api import RESTAPIConfig, rest_api_resources @dlt.source def waitlist_source(api_key=dlt.secrets.value): config: RESTAPIConfig = { "client": { "base_url": "https://api.getwaitlist.com/api/v1/", "auth": {"type": "api_key", "api_key": api_key, "name": "X-Api-Key", "location": "header"}, }, "resources": [ {"name": "subscribers", "endpoint": {"path": "waitlist/{waitlist-key}/subscribers", "data_selector": "data.subscribers"}}, {"name": "waitlists", "endpoint": {"path": "admin/api/v1/waitlists"}} ], } yield from rest_api_resources(config) def get_data() -> None: pipeline = dlt.pipeline( pipeline_name="waitlist_pipeline", destination="duckdb", dataset_name="waitlist_data", ) load_info = pipeline.run(waitlist_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):

import dlt data = dlt.pipeline("waitlist_pipeline").dataset() sessions_df = data.subscribers.df() print(sessions_df.head())

SQL (DuckDB example):

SELECT * FROM waitlist_data.subscribers LIMIT 10;

In a marimo or Jupyter notebook:

import dlt data = dlt.pipeline("waitlist_pipeline").dataset() data.subscribers.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 Waitlist data to?

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

DestinationExample value
DuckDB (local, default)"duckdb"
PostgreSQL"postgres"
BigQuery"bigquery"
Snowflake"snowflake"
Redshift"redshift"
Databricks"databricks"
Filesystem (S3, GCS, Azure)"filesystem"

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 harness:

  • data-exploration — Build custom notebooks, charts, and dashboards for deeper analysis with marimo notebooks.
  • dlthub-platform — Deploy, schedule, and monitor your pipeline in production.
uv run dlthub ai toolkit install data-exploration uv run dlthub ai toolkit install dlthub-platform

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