Sendgrid Twilio SendGrid Marketing Campaigns Contacts API
Browse all Sendgrid APIs57
AI ReadinessFoundational (C)57/100
MarketingEmail Marketingbearer15 EndpointsREST
For Agents
Programmatically get sample contacts, add or update a contact. Covers 15 operations with bearer authentication.
Use for: I need to sample contacts, I want to add or update a contact, Search for contacts, Find all a contact by id
Not supported: Does not handle payments, communications, or crm - use for marketing only.
The Twilio SendGrid Marketing Campaigns Contacts API allows you to manage all of your marketing contacts programmatically. You can also import and export contacts using this API. The Contacts API allows you to associate contacts with lists and segments; however, to manage the lists and segments themselves, see the [Lists API](https://docs.sendgrid.com/api-reference/lists/) and [Segments API](https. The API exposes 15 endpoints secured with bearer authentication.
Install Jentic One Beta
Connect the Twilio SendGrid Marketing Campaigns Contacts API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Twilio SendGrid Marketing Campaigns Contacts 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.
1
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fsendgrid.com%2Ftwilio-sendgrid-marketing-campaigns-contacts-api" | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fsendgrid.com%2Ftwilio-sendgrid-marketing-campaigns-contacts-api" | 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 Marketing Campaigns Contacts API.
Get Sample Contacts
Add or Update a Contact
Delete Contacts
Query and filter Twilio SendGrid Marketing Campaigns Contacts API records by parameters
Monitor Twilio SendGrid Marketing Campaigns Contacts API operational status and events
Use Cases
Patterns agents use Twilio SendGrid Marketing Campaigns Contacts API for, with concrete tasks.
★ Marketing Operations
Use the Twilio SendGrid Marketing Campaigns Contacts API to perform marketing operations programmatically. The API provides 15 endpoints covering core functionality including get sample contacts, add or update a contact, delete contacts.
Call GET /v3/marketing/contacts to get sample contacts
Automated Contacts Management
Automate contacts operations by combining multiple Twilio SendGrid Marketing Campaigns Contacts API endpoints. Agents can add or update a contact and then delete contacts in a single workflow.
Call PUT /v3/marketing/contacts to add or update a contact, then verify the result
AI Agent Integration via Jentic
AI agents discover and call Twilio SendGrid Marketing Campaigns Contacts 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 'get sample contacts', load the operation schema, and execute with Jentic-managed credentials
Key Endpoints
15 endpoints — the twilio sendgrid marketing campaigns contacts api allows you to manage all of your marketing contacts programmatically.
METHOD
PATH
DESCRIPTION
GET
/v3/marketing/contacts
Get Sample Contacts
PUT
/v3/marketing/contacts
Add or Update a Contact
DELETE
/v3/marketing/contacts
Delete Contacts
GET
/v3/marketing/contacts/{id}
Get a Contact by ID
POST
/v3/marketing/contacts/batch
Get Batched Contacts by IDs
DELETE
/v3/marketing/contacts/{contact_id}/identifiers
Delete a Contact Identifier
GET
/v3/marketing/contacts/count
Get Total Contact Count
POST
/v3/marketing/contacts/exports
Export Contacts
GET
/v3/marketing/contacts
Get Sample Contacts
PUT
/v3/marketing/contacts
Add or Update a Contact
DELETE
/v3/marketing/contacts
Delete Contacts
GET
/v3/marketing/contacts/{id}
Get a Contact by ID
POST
/v3/marketing/contacts/batch
Get Batched Contacts by IDs
DELETE
/v3/marketing/contacts/{contact_id}/identifiers
Delete a Contact Identifier
GET
/v3/marketing/contacts/count
Get Total Contact Count
POST
/v3/marketing/contacts/exports
Export Contacts
Jentic AI Readiness Score
This API is usable in Jentic One now. Its AI-readiness score against Jentic's framework shows where it stands today and where improvements would make it even easier for agents to use.
T
Twilio SendGrid Marketing Campaigns Contacts API
- Foundational (C)57/100
52
Foundational Compliance70
Developer Experience & Jentic Compatibility37
AI-Readiness & Agent Experience94
Agent Usability60
Security73
AI DiscoverabilityPowered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
52
Foundational Compliance
Base layer of spec validity and structural soundness.
Grade: C-Signals: 4
95%
Lint Results
Aggregated quality score from linter diagnostics, weighted by severity.
100%
Resolution Completeness
Percentage of `$ref` references that resolve successfully.
0%
Specification Validity
Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).
14%
Structural Integrity
Structural correctness score based on schema issues using logarithmic dampening.
70
Developer Experience & Jentic Compatibility
Clarity, completeness, and ingestion readiness for developers and tooling.
Grade: B+Signals: 4
3%
Example Density
How richly the API is illustrated with examples.
100%
Example Validity
Percentage of examples that conform to their schemas.
75%
Response Coverage
Percentage of operations with complete response definitions (success, client error, server error).
100%
Tooling Readiness
Health of API ingestion, bundling, and resolution within Jentic pipelines.
37
AI-Readiness & Agent Experience
Semantic breadth, depth, and agent comprehension for AI systems.
Grade: FSignals: 4
28%
Description Coverage
Coverage of descriptions across API elements.
0%
Error Standardization
Coverage of RFC 9457 Problem Details for error responses.
100%
OperationId Quality
Coverage, uniqueness, and casing consistency of operationIds for AI inference.
20%
Summary Coverage
Coverage of summaries across operations/tags/info.
94
Agent Usability
Functional utility, complexity comfort, and AI orchestration readiness.
Grade: A+Signals: 1
94%
Complexity Comfort
Agent comfort level based on API operational and structural complexity.
60
Security
Trust, risk posture, and security compliance.
Grade: B-Signals: 1
60%
Authentication Strength
Average quality of security schemes based on authentication method strength (weakest link for OAuth2).
73
AI Discoverability
Findability, semantic richness, and reasoning readiness.
Grade: A-Signals: 1
73%
Descriptive Richness
Clarity and depth of descriptions across API elements.
Score it yourself
Every API in the directory is allowlisted, so you can re-score it with no key required.
npx @jentic/api-scorecard-cli score <openapi-url>Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Twilio SendGrid Marketing Campaigns Contacts API by hand means learning its bearer API key auth, pointing at the api.sendgrid.com host, and handling batch imports, exports, and retries yourself. Through Jentic you install once, import the Marketing Contacts API from the API Directory, store the API key once, and your agent calls it.
Permission scoping
This API puts the contact id in the URL path (/v3/marketing/contacts/{id}), so a rule can pin your agent to reading one contact and nothing else. You choose the operations it may call, so bulk upserts with PUT /v3/marketing/contacts or deletes are not included unless you add them.
Credential isolation
Your Twilio SendGrid API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'get a contact by id' or 'export contacts', and Jentic returns the matching Twilio SendGrid Marketing Contacts API operation with its input schema so the agent calls the right endpoint without browsing the reference docs.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using Twilio SendGrid Marketing Campaigns Contacts API through Jentic.
What authentication does the Twilio SendGrid Marketing Campaigns Contacts API use?
The Twilio SendGrid Marketing Campaigns Contacts API uses a Bearer token in the Authorization header. Through Jentic, these credentials are stored encrypted in your Jentic One instance and injected at execution time, so raw secrets never enter the agent context.
Can I get sample contacts with the Twilio SendGrid Marketing Campaigns Contacts API?
Yes. Use the GET /v3/marketing/contacts 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 Contacts 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 get sample contacts through Jentic?
Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'get sample contacts'. Jentic returns the matching Twilio SendGrid Marketing Campaigns Contacts 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 Contacts API have?
The Twilio SendGrid Marketing Campaigns Contacts API exposes 15 endpoints covering contacts operations.
Can I limit what my agent is allowed to do with the SendGrid Contacts API?
Yes. Jentic One is self-hosted, so your own rules decide which operations and credentials your agent may use. Because this API puts the contact id in the URL path (GET /v3/marketing/contacts/{id}), you can pin the agent to reading a single contact and nothing else. Bulk upserts through PUT /v3/marketing/contacts and any delete operations stay off-limits unless you explicitly add them.
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