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APIs / Productivity / Zengine REST API
Zengine REST API logo

Zengine REST API

62
AI ReadinessAI-Aware (B-)62/100
See full scorecard
Official vendor OpenAPI document · agent-readyProductivityCalendar SchedulingapiKey, oauth2156 EndpointsREST

For Agents

Programmatically create a user, list users. Covers 156 operations with apiKey, oauth2 authentication.

Use for: I need to a user, I want to users, Search for a user, Find all a user

Not supported: Does not handle payments, communications, or crm - use for productivity only.

Zengine is a platform for managing data through workspaces, forms, records, tasks, events, notes, files, and more. The REST API enables integration with other apps such as email systems, marketing automation systems, or EMRs. All API communications require HTTPS. Each access token is allowed 250 queries per 5 minute window. The API exposes 156 endpoints secured with apiKey, oauth2 authentication.

Jentic One on GithubView OpenAPI Document

Install Jentic One Beta

Connect the Zengine REST API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Zengine REST 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%2Fzengine.com%2Fzengine" | sh
2

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%2Fzengine.com%2Fzengine" | 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 Zengine REST API.

Create a user

List users

Get a user

Update a user

Delete a user

Use Cases

Patterns agents use Zengine REST API for, with concrete tasks.

★ Productivity Operations

Use the Zengine REST API to perform productivity operations programmatically. The API provides 156 endpoints covering core functionality including create a user, list users, get a user.

Call POST /users to create a user

Automated Users Management

Automate users operations by combining multiple Zengine REST API endpoints. Agents can list users and then get a user in a single workflow.

Call GET /users to list users, then verify the result

AI Agent Integration via Jentic

AI agents discover and call Zengine REST 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, oauth2 tokens manually.

Search Jentic for 'create a user', load the operation schema, and execute with Jentic-managed credentials

Key Endpoints

156 endpoints — zengine is a platform for managing data through workspaces, forms, records, tasks, events, notes, files, and more.

METHOD

PATH

DESCRIPTION

POST

/users

Create a user

GET

/users

List users

GET

/users/{userId}

Get a user

PUT

/users/{userId}

Update a user

DELETE

/users/{userId}

Delete a user

GET

/users/{userId}/authorizations

List authorized clients

GET

/users/{userId}/authorizations/{authorizationId}

Get an authorized client

DELETE

/users/{userId}/authorizations/{authorizationId}

Revoke an authorized client

POST

/users

Create a user

GET

/users

List users

GET

/users/{userId}

Get a user

PUT

/users/{userId}

Update a user

DELETE

/users/{userId}

Delete a user

GET

/users/{userId}/authorizations

List authorized clients

GET

/users/{userId}/authorizations/{authorizationId}

Get an authorized client

DELETE

/users/{userId}/authorizations/{authorizationId}

Revoke an authorized client

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.

Z

Zengine REST API

- AI-Aware (B-)
62/100
74
Foundational Compliance
60
Developer Experience & Jentic Compatibility
53
AI-Readiness & Agent Experience
64
Agent Usability
53
Security
100
AI Discoverability
Powered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
74

Foundational Compliance

Base layer of spec validity and structural soundness.

Grade: A-Signals: 4
95%

Lint Results

Aggregated quality score from linter diagnostics, weighted by severity.

100%

Resolution Completeness

Percentage of `$ref` references that resolve successfully.

100%

Specification Validity

Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).

0%

Structural Integrity

Structural correctness score based on schema issues using logarithmic dampening.

60

Developer Experience & Jentic Compatibility

Clarity, completeness, and ingestion readiness for developers and tooling.

Grade: C+Signals: 4
0%

Example Density

How richly the API is illustrated with examples.

100%

Example Validity

Percentage of examples that conform to their schemas.

39%

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.

53

AI-Readiness & Agent Experience

Semantic breadth, depth, and agent comprehension for AI systems.

Grade: C-Signals: 4
46%

Description Coverage

Coverage of descriptions across API elements.

0%

Error Standardization

Coverage of RFC 9457 Problem Details for error responses.

99%

OperationId Quality

Coverage, uniqueness, and casing consistency of operationIds for AI inference.

66%

Summary Coverage

Coverage of summaries across operations/tags/info.

64

Agent Usability

Functional utility, complexity comfort, and AI orchestration readiness.

Grade: BSignals: 1
64%

Complexity Comfort

Agent comfort level based on API operational and structural complexity.

53

Security

Trust, risk posture, and security compliance.

Grade: C-Signals: 1
53%

Authentication Strength

Average quality of security schemes based on authentication method strength (weakest link for OAuth2).

100

AI Discoverability

Findability, semantic richness, and reasoning readiness.

Grade: A+Signals: 1
100%

Descriptive Richness

Clarity and depth of descriptions across API elements.

View full reportHow the score is calculatedMore about the dimensions

Score it yourself

Every API in the directory is allowlisted, so you can re-score it with no key required.

Score your own APIScoring CLI agent skill
npx @jentic/api-scorecard-cli score <openapi-url>

Why Jentic?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring the Zengine REST API by hand means choosing between its OAuth flow and an access_token query key, working through user and authorization paths on api.zenginehq.com/v1, and coding request handling yourself. Through Jentic you install once, import Zengine REST from the API Directory, store the credential once, and your agent calls it.

Permission scoping

The Zengine REST API puts the user and authorization ids in the URL path (/users/{userId}/authorizations/{authorizationId}), so a rule can pin your agent to one user. You choose the operations it may call, so deleting a user or revoking an authorization is not included unless you add it.

Credential isolation

Your Zengine credential 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 'create a user' or 'list a user's authorizations', and Jentic returns the matching Zengine REST 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.

Alternative

Asana

→

Alternative productivity API

Choose Asana when you need a different approach to productivity operations

Alternative

Monday

→

Alternative productivity API

Choose Monday when you need a different approach to productivity operations

Complementary

Clickup

→

Complementary productivity API

Choose Clickup when you need a complementary approach to productivity operations

FAQs

Specific to using Zengine REST API through Jentic.

What authentication does the Zengine REST API use?

The Zengine REST API uses apiKey, oauth2 authentication. 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 create a user with the Zengine REST API?

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

What are the rate limits for the Zengine REST 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 create a user through Jentic?

Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'create a user'. Jentic returns the matching Zengine REST API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.

How many endpoints does the Zengine REST API have?

The Zengine REST API exposes 156 endpoints covering users, user authorizations, user clients operations.

Can I limit what my agent is allowed to do with the Zengine REST API?

Yes. Because you run Jentic One yourself, your own rules decide which Zengine REST operations and credentials the agent can use, so you can grant read calls like GET /users and GET /users/{userId}/authorizations while withholding destructive ones such as DELETE /users/{userId} or revoking an authorization. Since Zengine puts the user and authorization ids in the URL path (/users/{userId}/authorizations/{authorizationId}), a rule can also pin the agent to a single user. Nothing outside the operations you explicitly allow is callable, and the stored credential is injected only for those calls.

GET STARTED

Start building with Zengine REST API

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View OpenAPI Document