Twilio SendGrid Marketing Campaigns Custom Fields API

Name: Twilio SendGrid Marketing Campaigns Custom Fields API API
Brand: Twilio SendGrid Marketing Campaigns Custom Fields API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentMarketingEmail Marketingbearer4 EndpointsREST

For Agents

Quickstart

Get started with Twilio SendGrid Marketing Campaigns Custom Fields API in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"create custom field definition"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with Twilio SendGrid Marketing Campaigns Custom Fields API API.

Create Custom Field Definition

Get All Field Definitions

Update Custom Field Definition

Delete Custom Field Definition

Monitor Twilio SendGrid Marketing Campaigns Custom Fields API operational status and events

GET STARTED

Start building with Twilio SendGrid Marketing Campaigns Custom Fields API API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for Twilio SendGrid Marketing Campaigns Custom Fields API, keeping it validated and agent-ready.

The Twilio SendGrid Marketing Campaigns Custom Fields API allows you to add extra information about your marketing contacts that is relevant to your needs. For example, a fashion retailer might create a custom field for customers' shoe sizes, an ice cream shop might store customers' favorite flavors in a custom field, and you can create custom fields that make sense for your business. With custom . The API exposes 4 endpoints secured with bearer authentication.

Use Cases

Patterns agents use Twilio SendGrid Marketing Campaigns Custom Fields API API for, with concrete tasks.

★ Marketing Operations

Use the Twilio SendGrid Marketing Campaigns Custom Fields API to perform marketing operations programmatically. The API provides 4 endpoints covering core functionality including create custom field definition, get all field definitions, update custom field definition.

Call POST /v3/marketing/field_definitions to create custom field definition

Automated Custom Fields Management

Automate custom fields operations by combining multiple Twilio SendGrid Marketing Campaigns Custom Fields API endpoints. Agents can get all field definitions and then update custom field definition in a single workflow.

Call GET /v3/marketing/field_definitions to get all field definitions, then verify the result

AI Agent Integration via Jentic

AI agents discover and call Twilio SendGrid Marketing Campaigns Custom Fields 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 custom field definition', load the operation schema, and execute with Jentic-managed credentials

Key Endpoints

4 endpoints — the twilio sendgrid marketing campaigns custom fields api allows you to add extra information about your marketing contacts that is relevant to your needs.

METHOD

PATH

DESCRIPTION

POST

/v3/marketing/field_definitions

Create Custom Field Definition

GET

/v3/marketing/field_definitions

Get All Field Definitions

PATCH

/v3/marketing/field_definitions/{custom_field_id}

Update Custom Field Definition

DELETE

/v3/marketing/field_definitions/{custom_field_id}

Delete Custom Field Definition

POST

/v3/marketing/field_definitions

Create Custom Field Definition

GET

/v3/marketing/field_definitions

Get All Field Definitions

PATCH

/v3/marketing/field_definitions/{custom_field_id}

Update Custom Field Definition

DELETE

/v3/marketing/field_definitions/{custom_field_id}

Delete Custom Field Definition

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Twilio SendGrid Marketing Campaigns Custom Fields 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 custom field definition') and Jentic returns the matching Twilio SendGrid Marketing Campaigns Custom Fields 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 Custom Fields API integration: 1-3 days for auth handling, response parsing, and error cases. Through Jentic: under 1 hour — search, load schema, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Alternative

Mailchimp

Alternative marketing API

Choose Mailchimp when you need a different approach to marketing operations

Alternative

Hubspot

Alternative marketing API

Choose Hubspot when you need a different approach to marketing operations

FAQs

Specific to using Twilio SendGrid Marketing Campaigns Custom Fields API API through Jentic.

What authentication does the Twilio SendGrid Marketing Campaigns Custom Fields API use?

The Twilio SendGrid Marketing Campaigns Custom Fields 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 custom field definition with the Twilio SendGrid Marketing Campaigns Custom Fields API?

Yes. Use the POST /v3/marketing/field_definitions 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 Custom Fields 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 custom field definition through Jentic?

Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'create custom field definition'. Jentic returns the matching Twilio SendGrid Marketing Campaigns Custom Fields 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 Custom Fields API have?

The Twilio SendGrid Marketing Campaigns Custom Fields API exposes 4 endpoints covering custom fields operations.