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APIs / Communications / Reteno API
Reteno API logo

Reteno API

✓ Official Vendor SpecCommunicationsEmail Deliverybasic71 EndpointsREST

For Agents

Programmatically add/update contact, delete contact by external id. Covers 71 operations with basic authentication.

Use for: I need to add/update contact, I want to contact by external id, Search for subscribe contact, Find all contacts

Not supported: Does not handle payments, crm, or developer tools — use for communications only.

Reteno omnichannel marketing platform API for managing contacts, events, messages (email, SMS, push, inbox), segments, workflows, broadcasts, and analytics. The API exposes 71 endpoints secured with basic authentication.

Jentic One on GithubView OpenAPI Document

Install Jentic One Beta

Connect the Reteno API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Reteno 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://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
2

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 instance

Jentic 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 Reteno API.

Add/update contact

Delete contact by external ID

Subscribe contact

Search contacts

Bulk add/update contacts

Get import status

Use Cases

Patterns agents use Reteno API for, with concrete tasks.

★ Communications Operations

Use the Reteno API to perform communications operations programmatically. The API provides 71 endpoints covering core functionality including add/update contact, delete contact by external id, subscribe contact.

Call POST /contacts to add/update contact

Automated Account Management

Automate account operations by combining multiple Reteno API endpoints. Agents can delete contact by external id and then subscribe contact in a single workflow.

Call DELETE /contacts/{externalCustomerId} to delete contact by external id, then verify the result

AI Agent Integration via Jentic

AI agents discover and call Reteno 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 basic tokens manually.

Search Jentic for 'add/update contact', load the operation schema, and execute with Jentic-managed credentials

Key Endpoints

71 endpoints — reteno omnichannel marketing platform api for managing contacts, events, messages (email, sms, push, inbox), segments, workflows, broadcasts, and analytics.

METHOD

PATH

DESCRIPTION

POST

/contacts

Add/update contact

DELETE

/contacts/{externalCustomerId}

Delete contact by external ID

POST

/contacts/subscribe

Subscribe contact

GET

/contacts/search

Search contacts

POST

/contacts/bulk

Bulk add/update contacts

POST

/contacts/bulk/file

Bulk add from file

GET

/contacts/import/status

Get import status

GET

/contacts/{id}/emails

Get contact emails

POST

/contacts

Add/update contact

DELETE

/contacts/{externalCustomerId}

Delete contact by external ID

POST

/contacts/subscribe

Subscribe contact

GET

/contacts/search

Search contacts

POST

/contacts/bulk

Bulk add/update contacts

POST

/contacts/bulk/file

Bulk add from file

GET

/contacts/import/status

Get import status

GET

/contacts/{id}/emails

Get contact emails

Why Jentic?

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

Credential management

Credential isolation

Reteno API basic credentials are stored encrypted in the Jentic vault (MAXsystem). Agents receive scoped access tokens — raw secrets never enter the agent context.

Intent-based discovery

Intent-based discovery

Agents search by intent (e.g., 'add/update contact') and Jentic returns the matching Reteno API operation with its input schema, so the agent can call the right endpoint without browsing docs.

Time to first call

Time to first call

Direct Reteno 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

Twilio

→

Alternative communications API

Choose Twilio when you need a different approach to communications operations

Alternative

Sendgrid

→

Alternative communications API

Choose Sendgrid when you need a different approach to communications operations

Complementary

Pusher

→

Complementary communications API

Choose Pusher when you need a complementary approach to communications operations

FAQs

Specific to using Reteno API through Jentic.

What authentication does the Reteno API use?

The Reteno API uses HTTP Basic authentication with username and password. 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 add/update contact with the Reteno API?

Yes. Use the POST /contacts endpoint. The API returns structured JSON responses that agents can parse and act on directly.

What are the rate limits for the Reteno 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 add/update contact through Jentic?

Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'add/update contact'. Jentic returns the matching Reteno API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.

How many endpoints does the Reteno API have?

The Reteno API exposes 71 endpoints covering account, auth, broadcasts operations.

GET STARTED

Start building with Reteno API

Explore with Jentic
View OpenAPI Document