MessageBird SMS API

Name: MessageBird SMS API API
Brand: MessageBird SMS API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentCommunicationsSms MessagingapiKey4 EndpointsREST

For Agents

Send SMS messages and inspect or delete previously sent message records via MessageBird's REST surface, in 4 endpoints.

Connect the MessageBird SMS API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the MessageBird SMS 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.

Install Jentic One Beta (Self-Hosted)

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

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 MessageBird SMS API API.

Send a transactional SMS to a customer phone number with a custom originator name

List recently sent SMS messages for a status reconciliation sweep

Look up a specific message by ID to confirm it left the gateway

Delete a stored SMS message record once it has been processed downstream

GET STARTED

Start building with MessageBird SMS API API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for MessageBird SMS API, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for MessageBird SMS API, keeping it validated and agent-ready. The MessageBird SMS API sends and manages SMS messages through MessageBird's global mobile network, returning delivery metadata for each send. Agents can dispatch a message, list previously sent messages, look up a single message by ID, and delete a stored message record from the same compact surface. Authentication uses MessageBird's `AccessKey` scheme and the API is suitable for transactional SMS, OTP delivery, and outbound notifications.

Use Cases

Patterns agents use MessageBird SMS API API for, with concrete tasks.

★ Transactional SMS Delivery

Send order confirmations, shipping updates, and appointment reminders by posting a message to the SMS endpoint with the recipient and body. The API returns a message ID and gateway acknowledgment, which the workflow can store for later auditing. This is the core path for any product that needs to reach customers reliably on their phone.

POST to /messages with the recipient number, originator, and message body, then store the returned message ID against the order record

OTP and Two-Factor Codes

Generate a numeric one-time passcode in your application, send it via the SMS endpoint, and verify the user-entered code on submission. MessageBird handles delivery across carriers and the response confirms the message was accepted by the gateway. Pair this with a short TTL and a per-user rate limit to keep the flow secure.

POST a 6-digit OTP to /messages addressed to the user's phone and persist the code with a 5-minute expiry for verification

Delivery Audit and Cleanup

List previously sent messages and look up individual records by ID to reconcile delivery against an internal database. After audit and reporting, the DELETE endpoint removes the stored record from MessageBird so retention is managed centrally. This is useful for compliance regimes that require message log purging on a schedule.

GET /messages, reconcile each message ID against the internal log, then DELETE /messages/{messageId} for records older than the retention window

AI Agent Integration via Jentic

An AI agent uses Jentic to discover the SMS API by intent search ('send an SMS'). Jentic returns the POST /messages operation with its input schema (recipient, originator, body) so the agent can dispatch a message in a single load-and-execute step. The MessageBird AccessKey is held in the Jentic vault and never enters the agent's prompt.

Use Jentic to search 'send an SMS', load the POST /messages schema, and execute it to send a delivery notification to the customer

Key Endpoints

4 endpoints — jentic publishes the only available openapi specification for messagebird sms api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/messages

Send an SMS message

GET

/messages

List sent SMS messages

GET

/messages/{messageId}

Get a single message by ID

DELETE

/messages/{messageId}

Delete a stored message record by ID

POST

/messages

Send an SMS message

GET

/messages

List sent SMS messages

GET

/messages/{messageId}

Get a single message by ID

DELETE

/messages/{messageId}

Delete a stored message record by ID

Why though Jentic?

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

Credential isolation

MessageBird AccessKey API keys are stored encrypted in the Jentic vault (MAXsystem). The `AccessKey` value is injected into the `Authorization` header at request time and never enters the agent's prompt.

Intent-based discovery

Agents search by intent (e.g. 'send an SMS') and Jentic returns POST /messages with its input schema, so the agent calls the right endpoint without browsing docs.

Time to first call

Direct MessageBird integration: half a day for auth and a basic send flow. Through Jentic: under 15 minutes — search, load schema, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Alternative

Twilio

Competing global SMS gateway with broader voice and channel coverage

Pick Twilio when you also need voice, WhatsApp, or programmable conversations alongside SMS

Alternative

Sinch

Global SMS and CPaaS provider with a similar transactional SMS surface

Pick Sinch when your routing or pricing requirements favour Sinch's carrier mix

Alternative

Plivo

Cloud SMS and voice API with worldwide reach

Pick Plivo when you want a lower-cost SMS provider with a comparable REST surface

Complementary

MessageBird Intent

Classify the intent of inbound replies to the SMS messages you send

Use Intent on inbound SMS replies when you want to automate the next step in the conversation

FAQs

Specific to using MessageBird SMS API API through Jentic.

Why is there no official OpenAPI spec for MessageBird SMS API?

MessageBird does not publish an OpenAPI specification for its SMS API. Jentic generates and maintains this spec so that AI agents and developers can call SMS sending via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the MessageBird SMS API use?

An API key in the `Authorization` header, prefixed with the word `AccessKey` (for example `Authorization: AccessKey w223tVQTcLO4ufBTuJxjvzwJ22`). Through Jentic the key is held in the MAXsystem vault and never appears in the agent's prompt.

Can I look up the status of a specific SMS after sending?

Yes. Capture the message ID returned from POST /messages and call GET /messages/{messageId} to retrieve the stored record, which includes the gateway acknowledgment fields.

How do I delete an old SMS record?

Call DELETE /messages/{messageId} once the record has been processed and is past your retention policy. Listing is available via GET /messages so you can iterate and prune programmatically.

How do I send an SMS through Jentic?

Search Jentic for `send an SMS`, load the POST /messages operation, and execute it with the recipient, originator, and body fields. Jentic returns the gateway response including the message ID.

Are there published rate limits?

The OpenAPI spec does not declare quantitative rate limits. Check your MessageBird account dashboard for the limits attached to your plan and design retry-with-backoff into the workflow before sending bulk traffic.