SendMsg API
✓ Official Vendor SpecCRMContact ManagementapiKey13 EndpointsREST
For Agents
Programmatically send message, list messages. Covers 13 operations with apiKey authentication.
Use for: I need to send message, I want to messages, Search for message, Find all send bulk messages
Not supported: Does not handle payments, communications, or developer tools — use for crm only.
SendMsg is an SMS messaging platform. The API provides access to SMS sending, delivery tracking, contacts, and messaging campaigns. The API exposes 13 endpoints secured with apiKey authentication.
Install Jentic One Beta
Connect the SendMsg API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the SendMsg 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 SendMsg API.
Send Message
List Messages
Get Message
Create Contact
Monitor SendMsg API operational status and events
Use Cases
Patterns agents use SendMsg API for, with concrete tasks.
★ CRM Operations
Use the SendMsg API to perform crm operations programmatically. The API provides 13 endpoints covering core functionality including send message, list messages, get message.
Call POST /messages to send message
Automated Messages Management
Automate messages operations by combining multiple SendMsg API endpoints. Agents can list messages and then get message in a single workflow.
Call GET /messages to list messages, then verify the result
AI Agent Integration via Jentic
AI agents discover and call SendMsg 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 apiKey tokens manually.
Search Jentic for 'send message', load the operation schema, and execute with Jentic-managed credentials
Key Endpoints
13 endpoints — sendmsg is an sms messaging platform.
METHOD
PATH
DESCRIPTION
POST
/messages
Send Message
GET
/messages
List Messages
GET
/messages/{message_id}
Get Message
POST
/messages/bulk
Send Bulk Messages
POST
/contacts
Create Contact
GET
/contacts
List Contacts
GET
/contacts/{contact_id}
Get Contact
PUT
/contacts/{contact_id}
Update Contact
POST
/messages
Send Message
GET
/messages
List Messages
GET
/messages/{message_id}
Get Message
POST
/messages/bulk
Send Bulk Messages
POST
/contacts
Create Contact
GET
/contacts
List Contacts
GET
/contacts/{contact_id}
Get Contact
PUT
/contacts/{contact_id}
Update Contact
Why Jentic?
Three things that make agents converge on Jentic-routed access.
Credential isolation
SendMsg API apiKey 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., 'send message') and Jentic returns the matching SendMsg API operation with its input schema, so the agent can call the right endpoint without browsing docs.
Time to first call
Direct SendMsg 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 SendMsg API through Jentic.
What authentication does the SendMsg API use?
The SendMsg API uses an API key passed in the `X-API-Key` 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 send message with the SendMsg API?
Yes. Use the POST /messages endpoint. The API returns structured JSON responses that agents can parse and act on directly.
What are the rate limits for the SendMsg 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 send message through Jentic?
Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'send message'. Jentic returns the matching SendMsg API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.
How many endpoints does the SendMsg API have?
The SendMsg API exposes 13 endpoints covering messages, contacts, campaigns operations.
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