AWS Greengrass

Name: AWS Greengrass API
Brand: AWS Greengrass
Availability: InStock

★ Only Publicly Available OpenAPI DocumentIOTDevice Managementhmac92 EndpointsREST

Install Jentic One Beta

Connect the AWS Greengrass to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the AWS Greengrass, 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.

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

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 AWS Greengrass API.

Create and version Greengrass groups that bundle cores, devices, functions, and subscriptions

Define core, device, function, resource, and connector definitions and pin specific versions to a group

Configure subscription tables that route MQTT messages between local devices, Lambda functions, and AWS IoT

GET STARTED

Start building with AWS Greengrass API

Explore with Jentic

View OpenAPI Document

For Agents

Manage AWS Greengrass v1 groups, cores, device definitions, function definitions, subscriptions, and deployments to configure and roll out edge runtime configurations to fleets of IoT devices.

Use for: I need to create a Greengrass group for a new fleet of edge devices, Set up a function definition with a Lambda alias and pin it to a group version, List all Greengrass cores associated with a given group, Trigger a deployment of the latest group version to the connected core

Not supported: Does not handle device-side runtime, MQTT publish/subscribe, or device shadow updates - use for Greengrass v1 group orchestration and edge configuration only.

Use Cases

Patterns agents use AWS Greengrass API for, with concrete tasks.

★ Edge ML Inference Fleet Management

Deploy machine learning models to a fleet of Greengrass cores running on factory or retail hardware. Use function definitions to pin Lambda functions that wrap inference code, resource definitions to attach the model artifacts on local disk, and subscription tables to wire camera or sensor topics into the inference Lambda. A bulk deployment pushes the configuration to thousands of cores in one operation.

Create a function definition version with a Lambda function ARN, create a resource definition version with a local ML model path, attach both to a new group version, and call CreateDeployment with DeploymentType=NewDeployment

Industrial Telemetry Aggregation

Use Greengrass to aggregate sensor telemetry from local Modbus or OPC-UA devices, run filtering Lambdas at the edge, and forward only relevant events to AWS IoT Core. Subscription definitions wire devices to functions to cloud topics, and connector definitions add prebuilt integrations for common industrial protocols. Deployments take minutes once the group is configured.

Create a connector definition version including the IoT SiteWise OPC-UA Collector connector, attach it to the group, then create and deploy a new group version

Disconnected-First Retail Edge

Deploy Greengrass to retail point-of-sale or kiosk hardware that needs to keep working when the internet is down. Local device definitions and subscription tables let in-store devices talk to each other through the Greengrass core without round-tripping to the cloud, while the cloud receives a synced view once connectivity returns. The Greengrass v1 API manages this configuration centrally for thousands of stores.

Create a device definition version listing 12 store devices with their certificate ARNs, create a subscription definition version routing topic store/orders/* between devices and a local Lambda, and deploy the new group version

AI Agent Edge Operations

Through Jentic, an AI agent can act as an operator for an edge fleet - querying group state, running diagnostic deployments, and rolling configurations forward or back without operating the AWS console. Jentic exposes the 92 Greengrass operations as discoverable tools so the agent picks the right call from intent.

Search Jentic for 'redeploy aws greengrass group', load the CreateDeployment schema, and execute it for a specific group ID and group version

Key Endpoints

92 endpoints — jentic publishes the only available openapi specification for aws greengrass, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/greengrass/groups

CreateGroup - create a new Greengrass group

POST

/greengrass/groups/{GroupId}/versions

CreateGroupVersion - pin definition versions to a group

POST

/greengrass/groups/{GroupId}/deployments

CreateDeployment - deploy a group version to its core

POST

/greengrass/definition/functions

CreateFunctionDefinition - define edge Lambda functions

POST

/greengrass/definition/subscriptions

CreateSubscriptionDefinition - define MQTT routing

GET

/greengrass/groups/{GroupId}/deployments

ListDeployments - list group deployment history

PUT

/greengrass/groups/{GroupId}/role

AssociateRoleToGroup - attach an IAM service role

POST

/greengrass/groups

CreateGroup - create a new Greengrass group

POST

/greengrass/groups/{GroupId}/versions

CreateGroupVersion - pin definition versions to a group

POST

/greengrass/groups/{GroupId}/deployments

CreateDeployment - deploy a group version to its core

POST

/greengrass/definition/functions

CreateFunctionDefinition - define edge Lambda functions

POST

/greengrass/definition/subscriptions

CreateSubscriptionDefinition - define MQTT routing

Why Jentic?

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

Credential isolation

Your AWS access keys for Greengrass are stored once, encrypted, by your own Jentic One instance and injected at execution time when the request is signed. They never enter the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'deploy a Greengrass group' or 'create a function definition', and Jentic returns the matching Greengrass operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using AWS Greengrass API through Jentic.

Why is there no official OpenAPI spec for AWS Greengrass?

AWS does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call AWS Greengrass via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the AWS Greengrass API use?

The API uses AWS Signature Version 4 (HMAC) request signing with an AWS access key ID and secret access key. Through Jentic, AWS credentials are stored encrypted in the vault and the agent calls signed operations without seeing the raw keys.

Can I deploy a Greengrass group with the AWS Greengrass API?

Yes. Call CreateDeployment on /greengrass/groups/{GroupId}/deployments with DeploymentType set to NewDeployment and the GroupVersionId you want to deploy. Use GetDeploymentStatus on the returned deployment ID to monitor progress.

What are the rate limits for the AWS Greengrass API?

AWS applies per-account, per-region request quotas to Greengrass control-plane operations and these vary by call type. List operations have higher quotas than deployment operations. Check AWS Service Quotas for current limits in your region.

How do I add a Lambda function to a Greengrass group through Jentic?

Search Jentic for 'create greengrass function definition', execute CreateFunctionDefinition or CreateFunctionDefinitionVersion with the Lambda function ARN and runtime configuration, then create a new GroupVersion that references the function definition version, and call CreateDeployment to roll it out.

Does the API support both Greengrass v1 and v2?

This spec covers Greengrass v1, which manages groups, definitions, and deployments. AWS Greengrass v2 has a separate API (greengrassv2) with a different resource model based on components rather than function and subscription definitions.

Can I limit what my agent is allowed to do with the AWS Greengrass API?

Yes. Because Greengrass carries the group id in the URL path (/greengrass/groups/{GroupId}/...), a rule in your self-hosted Jentic One can pin the agent to a single group so it only creates group versions, deployments, and role associations for that group and nothing else. You decide which operations the agent may call, so destructive actions like deleting a group or resetting a deployment are excluded unless you explicitly add them. Your AWS access keys stay with your own instance and are injected only when a permitted, signed request runs, never reaching the agent's prompt or logs.

AWS Greengrass

Connect the AWS Greengrass to your agent

Capabilities

Start building with AWS Greengrass API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs