Agent-ready OpenAPI document · curated by JenticMediaImage ProcessingapiKey13 EndpointsREST
Know of an official OpenAPI document? Contribute it →
For Agents
Render templated images at scale by supplying parameters to Duply templates. Useful for personalised social cards, ad creative, and bulk visual content jobs.
Use for: I need to render an Open Graph image for a blog post, Generate 500 personalised ad images from a CSV, List all design templates in our Duply account, Upload a new logo asset to use in renders
Not supported: Does not handle template design, image hosting outside Duply renders, or video editing beyond template substitution - use for templated image generation and batch rendering only.
Jentic publishes the only available OpenAPI specification for Duply API, keeping it validated and agent-ready. Duply is a templated image and video generation service that turns design templates plus dynamic parameters into rendered assets, with batch support and ready-made integrations to Zapier and Make. The API exposes 13 endpoints across templates, generation (single and URL-parameter), batch jobs, render history, and asset uploads. Authentication uses an API key passed in the Authorization header.
Install Jentic One Beta
Connect the Duply API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Duply 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%2Fduply.co%2Fduply" | sh2
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%2Fduply.co%2Fduply" | 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 Duply API.
List available design templates via GET /templates
Render a single image from a template via POST /generate
Render an image using URL-encoded parameters via POST /generate/url
Run a bulk render job via POST /batch and track it via GET /batch/{batchId}
List historical renders via GET /renders and download or delete a specific render
Upload reusable assets like logos or fonts via POST /assets
Manage the asset library via GET /assets, GET /assets/{assetId}, and DELETE /assets/{assetId}
Use Cases
Patterns agents use Duply API for, with concrete tasks.
★ Personalised Open Graph Images per Blog Post
Auto-generate a unique Open Graph image for each blog post or product page by populating a Duply template with the title, author, and accent colour. POST /generate returns a hosted image URL the agent stores against the post, so social shares always show on-brand creative without designer involvement.
POST /generate with template_id, layers={title:'New Post', author:'Sophie'}, store the returned image_url against the blog post record
Bulk Ad Creative from a Spreadsheet
Render hundreds or thousands of personalised ad images from a single template plus a row-per-variant data source. POST /batch dispatches the job, and GET /batch/{batchId} returns progress and the URLs for each completed render. This replaces manual design work for outreach, retargeting, and A/B test variants.
POST /batch with template_id and 1000 layer-value rows, then poll GET /batch/{batchId} until status='completed' and download each render URL
Brand-Asset Library for Generation
Maintain a Duply asset library of logos, fonts, and product photos so generated images stay on-brand without re-uploading every time. POST /assets uploads new files and GET /assets lists the library, which an agent can reference by id when calling /generate or /batch. This keeps templates portable and brand changes centralised.
POST /assets with the new logo file, then update each affected template to reference the returned asset_id
Agent-Driven Visual Content Pipeline via Jentic
Wire Duply into agent workflows that draft, render, and publish visual content. Through Jentic the agent searches by intent, loads the schema for /generate or /batch, and executes - the API key in the Authorization header stays in your Jentic One instance, not the agent's prompt context.
Search Jentic for 'generate templated image', load the schema for POST /generate, and execute with the template_id and layer values supplied by the parent content workflow
Key Endpoints
13 endpoints — jentic publishes the only available openapi specification for duply api, keeping it validated and agent-ready.
METHOD
PATH
DESCRIPTION
POST
/generate
Generate an image from a template
POST
/generate/url
Generate an image using URL parameters
POST
/batch
Start a batch generation job
GET
/batch/{batchId}
Get batch generation status
GET
/templates
List design templates
POST
/assets
Upload a reusable asset
GET
/renders
List historical renders
POST
/generate
Generate an image from a template
POST
/generate/url
Generate an image using URL parameters
POST
/batch
Start a batch generation job
GET
/batch/{batchId}
Get batch generation status
GET
/templates
List design templates
POST
/assets
Upload a reusable asset
GET
/renders
List historical renders
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.
D
Duply API
- AI-Aware (B+)70/100
100
Foundational Compliance63
Developer Experience & Jentic Compatibility55
AI-Readiness & Agent Experience94
Agent Usability50
Security100
AI DiscoverabilityPowered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
100
Foundational Compliance
Base layer of spec validity and structural soundness.
Grade: A+Signals: 4
99%
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).
100%
Structural Integrity
Structural correctness score based on schema issues using logarithmic dampening.
63
Developer Experience & Jentic Compatibility
Clarity, completeness, and ingestion readiness for developers and tooling.
Grade: B-Signals: 4
0%
Example Density
How richly the API is illustrated with examples.
100%
Example Validity
Percentage of examples that conform to their schemas.
50%
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.
55
AI-Readiness & Agent Experience
Semantic breadth, depth, and agent comprehension for AI systems.
Grade: CSignals: 4
65%
Description Coverage
Coverage of descriptions across API elements.
0%
Error Standardization
Coverage of RFC 9457 Problem Details for error responses.
100%
OperationId Quality
Coverage, uniqueness, and casing consistency of operationIds for AI inference.
57%
Summary Coverage
Coverage of summaries across operations/tags/info.
94
Agent Usability
Functional utility, complexity comfort, and AI orchestration readiness.
Grade: A+Signals: 1
94%
Complexity Comfort
Agent comfort level based on API operational and structural complexity.
50
Security
Trust, risk posture, and security compliance.
Grade: C-Signals: 1
50%
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.
Score it yourself
Every API in the directory is allowlisted, so you can re-score it with no key required.
npx @jentic/api-scorecard-cli score <openapi-url>Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Duply API by hand means handling its API-key auth in the Authorization header and building the render, batch, and asset calls yourself. Through Jentic you install once, import Duply from the API Directory, store the key once, and your agent calls it.
Permission scoping
Duply takes the template and substitution data in the request body, so you limit the agent to the operations it needs, such as generating a single image or reading render history. You choose which operations are allowed, so running a batch or uploading assets is not included unless you add them.
Credential isolation
Your Duply API key is stored once, encrypted, by your own Jentic One instance and injected into the Authorization header at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'generate a templated image' or 'run a batch render', and Jentic returns the matching Duply operation with its input schema so the agent calls the right endpoint without browsing the docs.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using Duply API through Jentic.
Why is there no official OpenAPI spec for Duply API?
Duply does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call Duply API 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 Duply API use?
Duply uses an API key passed in the Authorization header. Through Jentic the key is stored in the encrypted vault and injected at execution, so the raw value never enters the agent's prompt context.
Can I generate images at scale with the Duply API?
Yes. POST /batch starts a bulk render job from one template plus many layer-value rows, and GET /batch/{batchId} returns progress and the resulting render URLs.
What are the rate limits for the Duply API?
The OpenAPI spec does not declare rate limits. Plans set per-minute and monthly render quotas in the Duply dashboard; have your agent handle HTTP 429 with exponential backoff.
How do I render a single templated image through Jentic?
Search Jentic for 'generate templated image', load the schema for POST /generate, and execute with template_id plus the layer values you want substituted. Install with pip install jentic.
Can I upload my own logo and fonts to Duply?
Yes. POST /assets uploads a file and returns an asset_id you can reference inside templates so renders stay on-brand. List, retrieve, and delete them under /assets.
Can I limit what my agent is allowed to do with the Duply API?
Yes. Because you run Jentic One yourself, your own rules decide which Duply operations the agent may call and which credentials it may use. You can allow only what a task needs, such as generating a single image with POST /generate or reading render history with GET /renders, while leaving batch jobs (POST /batch) and asset uploads (POST /assets) out unless you add them. The agent cannot reach any operation you have not granted, so access stays scoped to the work at hand.
GET STARTED