# Winston AI Fact Checker

by [Winston AI](/organizations/winston-ai/)

- **ID:** `cf53fb8f-067b-4956-9d60-7a8986093763`
- **JSON API:** /api/v1/catalog/products/cf53fb8f-067b-4956-9d60-7a8986093763/
- **Slug:** winston-ai-fact-checker
- **Product website:** https://gowinston.ai/fact-checker-tool/
- **Documentation:** https://docs.gowinston.ai/
- **Organization website:** https://gowinston.ai
- **Categories:** [Fact Checking](/categories/fact-checking/)

## Description

Winston AI Fact Checker identifies factual statements in text, checks them against sources, and returns reports with explanations and source links. It flags inaccuracies and AI hallucinations and supports pasted text, document uploads, and URL import.

## AI-native score: Unrated

Research coverage is 38/100. An AI-native grade requires 40/100. The provisional breakdown below shows the AI-native signals recorded so far. The AI-native score measures agent-readiness and is not a substitute for your own security or vendor-risk review. See [methodology](/methodology/) for how coverage and the grade are computed.

| Component | Applies | Raw | Effective weight | Nominal weight | Contribution |
| --- | --- | --- | --- | --- | --- |
| Integration | Yes | 2/10 | 35% | 35% | 7.0 |
| Trust | Yes | 1/6 | 30% | 30% | 5.0 |
| Portability | Yes | 4/4 | 20% | 20% | 20.0 |
| Security | Yes | 1/4 | 15% | 15% | 3.8 |

- **Integration signals:** API spec, OpenAPI / gRPC / GraphQL (+1); SDK / developer kit (+1)
- **Trust signals:** No generative AI training (available, +1)
- **Portability signals:** Data export (partial, +1); Data import (partial, +1); Standard protocol access (+1); No proprietary-SDK lock-in (+1)
- **Security signals:** Compliance certifications (+1)

## Trust & Data Policy

- **No generative AI training:** ○ Available
- **Data export:** ○ Partial
- **Data import:** ○ Partial
- **Standard protocol access:** ✓ Yes
- **No proprietary-SDK lock-in:** ✓ Yes
- **Not yet researched:** llms.txt, WebMCP, Headless signup, Trust center, Multi-factor authentication, Zero data retention, Hard budget caps, Sandbox environment, Open standards, Documented provider swap, Self-hostable, Open source

## Confirmed absences

These decision fields were researched and confirmed absent — not available based on current evidence, until contrary information supersedes the finding. Each carries the check performed, the page checked, and the date, so you can act on the negative without repeating the research. A label-scoped absence applies only to its label (e.g. no SOC 2 does not mean no certifications).

- **A2A servers** — confirmed absent (whole field), checked 2026-10-18. Inspected official developer documentation home, complete documentation index at /llms.txt, published OpenAPI paths, Node SDK and MCP setup docs. Public integrations are HTTP API/SDK and MCP; none document an A2A server, Agent Card, A2A connection endpoint or Agent2Agent protocol for Winston AI Fact Checker. Scoped absence check of supported A2A integration, not an absence inferred from marketing copy. Source: https://docs.gowinston.ai/api-reference/introduction
- **MCP servers** — confirmed absent (whole field), checked 2026-10-18. Enumerated the official MCP server Tools table and connection documentation. It lists only ai-text-detection, ai-image-detection and plagiarism-detection. No fact-checking tool is exposed for this product; REST fact-checking is documented separately. Checked remote MCP support specifically for Winston AI Fact Checker, not sibling detector products. Source: https://docs.gowinston.ai/api-reference/mcp-server

## Security & Compliance

We confirm that cited vendor pages support these certification claims; we do not independently audit the reports. A shared trust or security page can support several certifications. We do not require separate public report links because reports may require login, vendor approval, or a nondisclosure agreement. Ask the vendor for reports and applicable coverage before a procurement decision. These listings expose no per-claim check date; the entry's updated date does not date the supporting evidence.

- **Compliance certifications:** System and Organization Controls 2
**Access controls:** Not yet researched.

## Capabilities

- **Fact Checking** — Check factual claims against sources and return findings with supporting references.

## Jobs To Be Done

- **Verify factual claims** — Check the accuracy of claims in documents and generated text before relying on or publishing them.

## Offers

No offers listed.

## Reviews

No approved reviews yet.

## Benchmarks

No benchmarks listed.

## Documentation

The primary documentation link is at the top of this page. No other documentation links listed.

## API Specs

- [Winston AI Fact Checker OpenAPI](https://docs.gowinston.ai/api-reference/openapi.json) (OpenAPI)

## MCP Servers

Confirmed absent based on current evidence — no MCP servers. See Confirmed absences above for method, source, and date.

## A2A Servers

Confirmed absent based on current evidence — no A2A servers. See Confirmed absences above for method, source, and date.

## Native Connectors

Not yet researched.

## Command-Line Interfaces

Not yet researched.

## Developer Kits

- [Winston AI Node SDK](https://github.com/gowinston-ai/ai-detector-node) — Languages: TypeScript

## Agent Skills

Not yet researched.

## Related products

- [Lenz](/organizations/lenz/products/lenz/) by Lenz — Unrated. Same job: Verify factual claims (not assessed).


## Add this badge to your site

Own this product? The Open Agent Guide badge links your site back to this directory listing. It makes no grade claim while this product is unrated, and updates on its own once enough is verified to assign a grade.

Badge image: https://www.openagentguide.com/organizations/winston-ai/products/winston-ai-fact-checker/badge.svg (seal), https://www.openagentguide.com/organizations/winston-ai/products/winston-ai-fact-checker/badge.svg?style=flat (flat). For the copy-paste HTML and Markdown embed code, open the badge panel on [this product's page](https://www.openagentguide.com/organizations/winston-ai/products/winston-ai-fact-checker/#badge-embed-heading). See [how scoring works](/methodology/).

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Content licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).