Gowinston Winston AI API
Official vendor OpenAPI document · agent-readyAI/MLMl Inferencebearer5 EndpointsREST
For Agents
Score text and images for AI-generated likelihood, run plagiarism checks, fact-check claims, and compare two pieces of text. Returns confidence scores per request.
Use for: Check whether a student essay was written by AI, Detect plagiarism in a marketing draft before publishing, Fact-check a paragraph against trusted sources, Find AI-generated images in a content moderation queue
Not supported: Does not generate content, classify language, or perform sentiment analysis - use for AI-content detection, plagiarism, fact-checking, and text comparison only.
Winston AI is an AI content authenticity platform that scores text and images for likelihood of AI generation, runs plagiarism checks, fact-checks claims, and compares two pieces of text for similarity. The v2 API exposes five POST endpoints covering AI text detection, plagiarism scanning, AI image detection, automated fact checking, and text comparison. It is used by educators, publishers, and content moderation teams that need a programmatic verdict on content provenance.
Install Jentic One Beta
Connect the Winston AI API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Winston AI 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%2Fgowinston.ai%2Fgowinston-ai" | 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%2Fgowinston.ai%2Fgowinston-ai" | 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 Winston AI API.
Score a passage of text for likelihood of AI generation via /v2/ai-content-detection
Detect AI-generated images by URL or upload through /v2/ai-image-detection
Run plagiarism scans against indexed web content with /v2/plagiarism
Fact-check a claim or passage and return source-backed verdicts via /v2/fact-checker
Compare two texts and return similarity and overlap metrics with /v2/text-compare
Use Cases
Patterns agents use Winston AI API for, with concrete tasks.
★ Academic Integrity Screening
Schools and universities screen student submissions for AI-generated content and plagiarism in a single workflow. POST /v2/ai-content-detection returns an AI-generation score and per-sentence breakdown, while /v2/plagiarism cross-references the text against indexed web sources. Educators use the combined verdict as triage rather than absolute proof, since detection scores are probabilistic.
POST /v2/ai-content-detection with a student essay body and return the AI-generation probability plus the highest-scoring sentences.
Editorial Fact-Checking Pipeline
Newsrooms run /v2/fact-checker over draft articles to flag claims that need verification before publishing. The endpoint returns per-claim verdicts and supporting source citations, letting editors prioritise which claims a human fact-checker should review. The API does not replace legal review for sensitive or defamatory content.
POST /v2/fact-checker with an article body and surface every claim flagged as 'unsupported' along with the cited counter-sources.
Image Provenance for Marketplaces
User-generated marketplaces and stock photo libraries scan uploads with /v2/ai-image-detection to label suspected AI-generated imagery. The endpoint accepts an image URL or uploaded file and returns a confidence score that can drive auto-tagging or moderation queues. Image detection does not identify which generator produced the image.
POST /v2/ai-image-detection with an image URL and tag listings with score above 0.85 as 'AI-generated' for moderator review.
Agent-Driven Content Authenticity Check via Jentic
An agent moderating user content can use Jentic to discover Winston AI, load /v2/ai-content-detection, and execute with the user's text. The Bearer token is held in Jentic's vault, so the agent never sees the raw secret. The agent reasons over the score and decides whether to escalate to human review.
Use the Jentic SDK to search 'detect ai-generated text', load /v2/ai-content-detection, and execute with the user's submission.
Key Endpoints
5 endpoints — winston ai is an ai content authenticity platform that scores text and images for likelihood of ai generation, runs plagiarism checks, fact-checks claims, and compares two pieces of text for similarity.
METHOD
PATH
DESCRIPTION
POST
/v2/ai-content-detection
Score text for AI-generation likelihood
POST
/v2/plagiarism
Run plagiarism scan against indexed web content
POST
/v2/ai-image-detection
Detect AI-generated images
POST
/v2/fact-checker
Fact-check claims with source citations
POST
/v2/text-compare
Compare two texts for similarity
POST
/v2/ai-content-detection
Score text for AI-generation likelihood
POST
/v2/plagiarism
Run plagiarism scan against indexed web content
POST
/v2/ai-image-detection
Detect AI-generated images
POST
/v2/fact-checker
Fact-check claims with source citations
POST
/v2/text-compare
Compare two texts for similarity
Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the Winston AI API by hand means implementing its bearer auth and routing each request to the right detection endpoint for AI content, plagiarism, image detection, fact checking, or text comparison yourself. Through Jentic you install once, import Winston AI from the API Directory, store the token once, and your agent calls it.
Permission scoping
Winston AI takes the text or content to check in the request body rather than a resource id in the path, so limit the agent to the operations it needs, such as ai-content-detection or fact-checker. You choose the operations it may call, so the agent cannot reach anything you have not included.
Credential isolation
Your Winston AI bearer token is stored once, encrypted, by your own Jentic One instance and injected as 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 'detect ai-generated text' or 'fact check this paragraph', and Jentic returns the matching Winston AI operation with its request schema so the agent can populate the body without reading the docs.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using Winston AI API through Jentic.
What authentication does the Winston AI API use?
The API uses HTTP Bearer authentication. Provision a key in the Winston AI dashboard and send it as Authorization: Bearer <token>. Through Jentic, the bearer token is stored in your Jentic One instance and injected at call time so the agent never sees the raw value.
How accurate is Winston AI's AI content detection?
Detection scores are probabilistic, not deterministic. The /v2/ai-content-detection response returns a confidence value per submission and a per-sentence breakdown so reviewers can see where the model is most confident. Use the score as a triage signal and pair it with human review for high-stakes decisions.
What are the rate limits for the Winston AI API?
The OpenAPI spec does not declare per-endpoint rate limits. Limits are tied to your Winston AI plan, with stricter quotas on the free tier and higher concurrency on paid tiers. Cache identical text submissions to avoid repeat charges.
How do I run plagiarism detection through Jentic?
Search Jentic for 'check text for plagiarism', load POST /v2/plagiarism, and execute with the text body. The Jentic SDK returns Winston's parsed response including matched source URLs and overlap percentages, ready for agent reasoning.
Can I detect AI-generated images with this API?
Yes. POST /v2/ai-image-detection accepts an image URL or upload and returns a confidence score for AI generation. It does not identify which generator (Midjourney, DALL-E, Stable Diffusion) produced the image - only that AI authorship is likely.
Is the Winston AI API free?
Winston AI offers a limited free tier with monthly word and request quotas, plus paid tiers with higher limits and additional features. Pricing is published on gowinston.ai and tiers are enforced at the API gateway.
Can I limit what my agent is allowed to do with the Winston AI API?
Yes. Because you run Jentic One yourself, your own rules decide which Winston AI operations the agent may call, so you can allow only the endpoints it needs, such as ai-content-detection or fact-checker, and withhold plagiarism, ai-image-detection, or text-compare. Winston AI takes the text or content to check in the request body rather than a resource id in the path, so scoping is done at the operation level: an operation you have not included is simply unreachable. You also control the bearer credential the agent uses, so it can only act within the access you have granted.
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