Sendgrid Twilio SendGrid Domain Authentication API
Browse all Sendgrid APIs63
AI ReadinessAI-Aware (B)63/100
CommunicationsEmail Deliverybearer16 EndpointsREST
For Agents
Programmatically email dns records to a co-worker, authenticate a domain. Covers 16 operations with bearer authentication.
Use for: I need to email dns records to a co-worker, I want to authenticate a domain, Search for all authenticated domains, Find all an authenticated domain
Not supported: Does not handle payments, crm, or developer tools - use for communications only.
The Twilio SendGrid Domain Authentication API allows you to manage your authenticated domains and their settings. Domain Authentication is a required step when setting up your Twilio SendGrid account because it's essential to ensuring the deliverability of your email. Domain Authentication signals trustworthiness to email inbox providers and your recipients by approving SendGrid to send email on b. The API exposes 16 endpoints secured with bearer authentication.
Install Jentic One Beta
Connect the Twilio SendGrid Domain Authentication API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Twilio SendGrid Domain Authentication 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-domain-authentication-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-domain-authentication-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 Domain Authentication API.
Email DNS records to a co-worker
Authenticate a domain
List all authenticated domains
Retrieve an authenticated domain
Update an authenticated domain
Delete an authenticated domain.
Associate an authenticated domain with a given user.
Use Cases
Patterns agents use Twilio SendGrid Domain Authentication API for, with concrete tasks.
★ Communications Operations
Use the Twilio SendGrid Domain Authentication API to perform communications operations programmatically. The API provides 16 endpoints covering core functionality including email dns records to a co-worker, authenticate a domain, list all authenticated domains.
Call POST /v3/whitelabel/dns/email to email dns records to a co-worker
Automated Domain Authentication Management
Automate domain authentication operations by combining multiple Twilio SendGrid Domain Authentication API endpoints. Agents can authenticate a domain and then list all authenticated domains in a single workflow.
Call POST /v3/whitelabel/domains to authenticate a domain, then verify the result
AI Agent Integration via Jentic
AI agents discover and call Twilio SendGrid Domain Authentication 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 'email dns records to a co-worker', load the operation schema, and execute with Jentic-managed credentials
Key Endpoints
16 endpoints — the twilio sendgrid domain authentication api allows you to manage your authenticated domains and their settings.
METHOD
PATH
DESCRIPTION
POST
/v3/whitelabel/dns/email
Email DNS records to a co-worker
POST
/v3/whitelabel/domains
Authenticate a domain
GET
/v3/whitelabel/domains
List all authenticated domains
GET
/v3/whitelabel/domains/{domain_id}
Retrieve an authenticated domain
PATCH
/v3/whitelabel/domains/{domain_id}
Update an authenticated domain
DELETE
/v3/whitelabel/domains/{domain_id}
Delete an authenticated domain.
POST
/v3/whitelabel/domains/{domain_id}/subuser
Associate an authenticated domain with a given user.
DELETE
/v3/whitelabel/domains/{domain_id}/subuser
Disassociate an authenticated domain from a given user for users with up to five
POST
/v3/whitelabel/dns/email
Email DNS records to a co-worker
POST
/v3/whitelabel/domains
Authenticate a domain
GET
/v3/whitelabel/domains
List all authenticated domains
GET
/v3/whitelabel/domains/{domain_id}
Retrieve an authenticated domain
PATCH
/v3/whitelabel/domains/{domain_id}
Update an authenticated domain
DELETE
/v3/whitelabel/domains/{domain_id}
Delete an authenticated domain.
POST
/v3/whitelabel/domains/{domain_id}/subuser
Associate an authenticated domain with a given user.
DELETE
/v3/whitelabel/domains/{domain_id}/subuser
Disassociate an authenticated domain from a given user for users with up to five
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 Domain Authentication API
- AI-Aware (B)63/100
73
Foundational Compliance59
Developer Experience & Jentic Compatibility49
AI-Readiness & Agent Experience94
Agent Usability60
Security68
AI DiscoverabilityPowered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
73
Foundational Compliance
Base layer of spec validity and structural soundness.
Grade: A-Signals: 4
94%
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).
100%
Structural Integrity
Structural correctness score based on schema issues using logarithmic dampening.
59
Developer Experience & Jentic Compatibility
Clarity, completeness, and ingestion readiness for developers and tooling.
Grade: C+Signals: 4
8%
Example Density
How richly the API is illustrated with examples.
100%
Example Validity
Percentage of examples that conform to their schemas.
28%
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.
49
AI-Readiness & Agent Experience
Semantic breadth, depth, and agent comprehension for AI systems.
Grade: D+Signals: 4
62%
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.
33%
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).
68
AI Discoverability
Findability, semantic richness, and reasoning readiness.
Grade: B+Signals: 1
68%
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 Domain Authentication API by hand means learning its bearer auth where the API key is the token, choosing the right US or EU host (api.sendgrid.com or api.eu.sendgrid.com), and managing DNS whitelabel records yourself. Through Jentic you install once, import the Twilio SendGrid Domain Authentication API from the API Directory, store the key once, and your agent calls it.
Permission scoping
This API puts the domain id in the URL path (/v3/whitelabel/domains/{domain_id}/...), so a rule can pin your agent to one domain: it can read, update, and attach a subuser to that domain. You choose the operations it may call, so domain deletion is not included unless you add it.
Credential isolation
Your Twilio SendGrid Domain Authentication 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 'authenticate a sending domain' or 'list whitelabel domains', and Jentic returns the matching Twilio SendGrid Domain Authentication 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 Domain Authentication API through Jentic.
What authentication does the Twilio SendGrid Domain Authentication API use?
The Twilio SendGrid Domain Authentication 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 email dns records to a co-worker with the Twilio SendGrid Domain Authentication API?
Yes. Use the POST /v3/whitelabel/dns/email endpoint. The API returns structured JSON responses that agents can parse and act on directly.
What are the rate limits for the Twilio SendGrid Domain Authentication 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 email dns records to a co-worker through Jentic?
Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'email dns records to a co-worker'. Jentic returns the matching Twilio SendGrid Domain Authentication API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.
How many endpoints does the Twilio SendGrid Domain Authentication API have?
The Twilio SendGrid Domain Authentication API exposes 16 endpoints covering domain authentication operations.
Can I limit what my agent is allowed to do with the Twilio SendGrid Domain Authentication API?
Yes. Jentic One is self-hosted by you, so your own rules decide which operations and credentials the agent may use. Because this API carries the domain id in the URL path (/v3/whitelabel/domains/{domain_id}/...), you can pin the agent to a single authenticated domain and allow only the calls it needs, such as retrieving that domain, updating it, and associating a subuser. You choose the operations it may call, so the DELETE /v3/whitelabel/domains/{domain_id} endpoint stays off the list unless you explicitly add it.
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