Dropbox sign Python API Docs | dltHub

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

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Dropbox Sign is an eSignature platform that provides a REST API for managing signature requests and account settings. The REST API base URL is https://api.hellosign.com/v3 and API requests are authenticated using HTTP Basic or Bearer token authorization schemes..

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 Dropbox sign data in under 10 minutes.


What data can I load from Dropbox sign?

Here are some of the endpoints you can load from Dropbox sign:

ResourceEndpointMethodData selectorDescription
signature_request_list/signature_request/listGETsignature_requestsReturns a list of SignatureRequests.
template_list/template/listGETtemplatesReturns a list of Templates.
signature_request_get/signature_request/{signature_request_id}GETReturns a single SignatureRequest.
template_get/template/{template_id}GETReturns a single Template.
api_app_list/api_app/listGETapi_appsReturns a list of API Apps.
account_get/accountGETReturns current account properties.

How do I authenticate with the Dropbox sign API?

Authentication is performed using either an API key (via HTTP Basic Auth with the key as the username and a blank password) or an OAuth access token (via the Authorization header with a Bearer token).

1. Get your credentials

  1. Log in to your account at sign.dropbox.com or the Dropbox Sign developer portal. 2. Navigate to your Account Settings. 3. Select the API tab. 4. If you have not created a key yet, click 'Create Key'. If you have existing keys, you can click 'Generate key' to create a new one (up to a maximum of 4). 5. Click 'Reveal key' to view and copy your API key. Keep this in a secure location as you will need it for authentication.

2. Add them to .dlt/secrets.toml

[sources.dropbox_sign_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 Dropbox sign 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 dropbox_sign_pipeline.py

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

Pipeline dropbox_sign_pipeline load step completed in 0.26 seconds 1 load package(s) were loaded to destination duckdb and into dataset dropbox_sign_data The duckdb destination used duckdb:/dropbox_sign.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 /signature_request/list and /account from the Dropbox sign 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 dropbox_sign_source(api_key=dlt.secrets.value): config: RESTAPIConfig = { "client": { "base_url": "https://api.hellosign.com/v3", "auth": {"type": "http_basic", "username": "REPLACE_ME", "password": api_key}, }, "resources": [ {"name": "signature_request_list", "endpoint": {"path": "signature_request/list", "data_selector": "signature_requests"}}, {"name": "template_list", "endpoint": {"path": "template/list", "data_selector": "templates"}} ], } yield from rest_api_resources(config) def get_data() -> None: pipeline = dlt.pipeline( pipeline_name="dropbox_sign_pipeline", destination="duckdb", dataset_name="dropbox_sign_data", ) load_info = pipeline.run(dropbox_sign_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("dropbox_sign_pipeline").dataset() sessions_df = data.signature_request_list.df() print(sessions_df.head())

SQL (DuckDB example):

SELECT * FROM dropbox_sign_data.signature_request_list LIMIT 10;

In a marimo or Jupyter notebook:

import dlt data = dlt.pipeline("dropbox_sign_pipeline").dataset() data.signature_request_list.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 Dropbox sign 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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