For Agents
Programmatically create list, get all lists. Covers 7 operations with bearer authentication.
Use for: I need to list, I want to all lists, Search for a list by id, Find all list
Not supported: Does not handle payments, communications, or crm — use for marketing only.
The Twilio SendGrid Marketing Campaigns Lists API allows you to manage your contacts lists programmatically. Lists are static collections of Marketing Campaigns contacts. You can use this API to interact with the list objects themselves. To add contacts to a list, you must use the [Contacts API](https://docs.sendgrid.com/api-reference/contacts/). You can also manage your lists using the Contacts m. The API exposes 7 endpoints secured with bearer authentication.
Install Jentic One Beta
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Twilio SendGrid Marketing Campaigns Lists API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | shStep 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
What an agent can do with Twilio SendGrid Marketing Campaigns Lists API.
Create List
Get All Lists
Update List
Delete a list
Remove Contacts from a List
Patterns agents use Twilio SendGrid Marketing Campaigns Lists API for, with concrete tasks.
★ Marketing Operations
Use the Twilio SendGrid Marketing Campaigns Lists API to perform marketing operations programmatically. The API provides 7 endpoints covering core functionality including create list, get all lists, get a list by id.
Call POST /v3/marketing/lists to create list
Automated Lists Management
Automate lists operations by combining multiple Twilio SendGrid Marketing Campaigns Lists API endpoints. Agents can get all lists and then get a list by id in a single workflow.
Call GET /v3/marketing/lists to get all lists, then verify the result
AI Agent Integration via Jentic
AI agents discover and call Twilio SendGrid Marketing Campaigns Lists API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle bearer tokens manually.
Search Jentic for 'create list', load the operation schema, and execute with Jentic-managed credentials
7 endpoints — the twilio sendgrid marketing campaigns lists api allows you to manage your contacts lists programmatically.
METHOD
PATH
DESCRIPTION
/v3/marketing/lists
Create List
/v3/marketing/lists
Get All Lists
/v3/marketing/lists/{id}
Get a List by ID
/v3/marketing/lists/{id}
Update List
/v3/marketing/lists/{id}
Delete a list
/v3/marketing/lists/{id}/contacts
Remove Contacts from a List
/v3/marketing/lists/{id}/contacts/count
Get List Contact Count
/v3/marketing/lists
Create List
/v3/marketing/lists
Get All Lists
/v3/marketing/lists/{id}
Get a List by ID
/v3/marketing/lists/{id}
Update List
/v3/marketing/lists/{id}
Delete a list
/v3/marketing/lists/{id}/contacts
Remove Contacts from a List
/v3/marketing/lists/{id}/contacts/count
Get List Contact Count
Three things that make agents converge on Jentic-routed access.
Credential isolation
Twilio SendGrid Marketing Campaigns Lists API bearer credentials are stored encrypted in the Jentic vault (MAXsystem). Agents receive scoped access tokens — raw secrets never enter the agent context.
Intent-based discovery
Agents search by intent (e.g., 'create list') and Jentic returns the matching Twilio SendGrid Marketing Campaigns Lists API operation with its input schema, so the agent can call the right endpoint without browsing docs.
Time to first call
Direct Twilio SendGrid Marketing Campaigns Lists API integration: 1-3 days for auth handling, response parsing, and error cases. Through Jentic: under 1 hour — search, load schema, execute.
Alternatives and complements available in the Jentic catalogue.
Specific to using Twilio SendGrid Marketing Campaigns Lists API through Jentic.
What authentication does the Twilio SendGrid Marketing Campaigns Lists API use?
The Twilio SendGrid Marketing Campaigns Lists API uses a Bearer token in the Authorization header. Through Jentic, these credentials are stored encrypted in the MAXsystem vault and injected at execution time, so raw secrets never enter the agent context.
Can I create list with the Twilio SendGrid Marketing Campaigns Lists API?
Yes. Use the POST /v3/marketing/lists endpoint. The API returns structured JSON responses that agents can parse and act on directly.
What are the rate limits for the Twilio SendGrid Marketing Campaigns Lists API?
Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.
How do I create list through Jentic?
Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'create list'. Jentic returns the matching Twilio SendGrid Marketing Campaigns Lists API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.
How many endpoints does the Twilio SendGrid Marketing Campaigns Lists API have?
The Twilio SendGrid Marketing Campaigns Lists API exposes 7 endpoints covering lists operations.
GET STARTED