Sendgrid Twilio SendGrid Legacy Marketing Campaigns Sender Identities API
Browse all Sendgrid APIs★ Only Publicly Available OpenAPI DocumentMarketingEmail Marketingbearer6 EndpointsREST
For Agents
Programmatically create a sender identity, get all sender identities. Covers 6 operations with bearer authentication.
Use for: I need to a sender identity, I want to all sender identities, Search for view a sender identity, Find all a sender identity
Not supported: Does not handle payments, communications, or crm — use for marketing only.
The Twilio SendGrid Legacy Marketing Campaigns Sender Identites API allows you to manage the email addresses used to send your marketing email. This API is operational, but we recommend using the current version of Marketing Campaigns to manage your [senders](https://docs.sendgrid.com/api-reference/senders/). See [**Migrating from Legacy Marketing Campaigns**](https://docs.sendgrid.com/ui/sending-. The API exposes 6 endpoints secured with bearer authentication.
Install Jentic One Beta
Connect the Twilio SendGrid Legacy Marketing Campaigns Sender Identities API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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.
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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 | sh2
Step 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.
Capabilities
What an agent can do with Twilio SendGrid Legacy Marketing Campaigns Sender Identities API.
Create a Sender Identity
Get all Sender Identities
View a Sender Identity
Update a Sender Identity
Delete a Sender Identity
Resend Sender Identity Verification
Use Cases
Patterns agents use Twilio SendGrid Legacy Marketing Campaigns Sender Identities API for, with concrete tasks.
★ Marketing Operations
Use the Twilio SendGrid Legacy Marketing Campaigns Sender Identities API to perform marketing operations programmatically. The API provides 6 endpoints covering core functionality including create a sender identity, get all sender identities, view a sender identity.
Call POST /v3/senders to create a sender identity
Automated Sender Identities Management
Automate sender identities operations by combining multiple Twilio SendGrid Legacy Marketing Campaigns Sender Identities API endpoints. Agents can get all sender identities and then view a sender identity in a single workflow.
Call GET /v3/senders to get all sender identities, then verify the result
AI Agent Integration via Jentic
AI agents discover and call Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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 a sender identity', load the operation schema, and execute with Jentic-managed credentials
Key Endpoints
6 endpoints — the twilio sendgrid legacy marketing campaigns sender identites api allows you to manage the email addresses used to send your marketing email.
METHOD
PATH
DESCRIPTION
POST
/v3/senders
Create a Sender Identity
GET
/v3/senders
Get all Sender Identities
GET
/v3/senders/{sender_id}
View a Sender Identity
PATCH
/v3/senders/{sender_id}
Update a Sender Identity
DELETE
/v3/senders/{sender_id}
Delete a Sender Identity
POST
/v3/senders/{sender_id}/resend_verification
Resend Sender Identity Verification
POST
/v3/senders
Create a Sender Identity
GET
/v3/senders
Get all Sender Identities
GET
/v3/senders/{sender_id}
View a Sender Identity
PATCH
/v3/senders/{sender_id}
Update a Sender Identity
DELETE
/v3/senders/{sender_id}
Delete a Sender Identity
POST
/v3/senders/{sender_id}/resend_verification
Resend Sender Identity Verification
Why Jentic?
Three things that make agents converge on Jentic-routed access.
Credential isolation
Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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 a sender identity') and Jentic returns the matching Twilio SendGrid Legacy Marketing Campaigns Sender Identities API operation with its input schema, so the agent can call the right endpoint without browsing docs.
Time to first call
Direct Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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.
FAQs
Specific to using Twilio SendGrid Legacy Marketing Campaigns Sender Identities API through Jentic.
What authentication does the Twilio SendGrid Legacy Marketing Campaigns Sender Identities API use?
The Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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 a sender identity with the Twilio SendGrid Legacy Marketing Campaigns Sender Identities API?
Yes. Use the POST /v3/senders endpoint. The API returns structured JSON responses that agents can parse and act on directly.
What are the rate limits for the Twilio SendGrid Legacy Marketing Campaigns Sender Identities 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 a sender identity through Jentic?
Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'create a sender identity'. Jentic returns the matching Twilio SendGrid Legacy Marketing Campaigns Sender Identities API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.
How many endpoints does the Twilio SendGrid Legacy Marketing Campaigns Sender Identities API have?
The Twilio SendGrid Legacy Marketing Campaigns Sender Identities API exposes 6 endpoints covering sender identities operations.
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