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The Liggett Group
TLG EvidenceHub
Check a claim. See the evidence.

Evidence-based claim validation
where your content is created.

An AI-powered API that checks medical claims against published evidence and verifies cited references — directly from your CMS, CAS, review tools, or agentic AI workflows. Submit a claim, get back a verdict with scored evidence. Submit a reference, find out if it has been retracted or corrected. REST API and MCP server.

Why EvidenceHub

Catch unsupported claims and compromised references before they reach reviewers, regulators, or patients.

Claim Check

Every claim in a promotional document either has published evidence behind it or it doesn’t. EvidenceHub retrieves evidence from seven authoritative sources, uses AI to score how well it supports the claim across four dimensions, and returns a clear verdict — Fully Supported, Supported, Partial Support, or Unsupported — with rationale and source links you can trace. Your team catches weak claims during authoring instead of during regulatory review.

Reference Check

A cited reference can be retracted, corrected, or flagged with an expression of concern at any time. EvidenceHub checks each reference against the published record and tells you its current status — so you know whether a citation is still valid before your content goes live. Cached results are monitored weekly so previously-verified references are re-flagged if their status changes.

Two Ways to Integrate

Choose the integration that fits your workflow

REST API

For applications and services

Standard HTTP endpoints with OAuth 2.0 authentication. Integrate claim and reference checking into your CMS, editorial workflow, claims library, or compliance tools. Structured JSON responses with verdicts, scores, rationale, and source links.

# Claim Check
POST /v1/claim-checks
GET  /v1/claim-checks/{job_id}

# Reference Check
POST /v1/reference-checks
GET  /v1/reference-checks/{job_id}

MCP Server

For AI agents and LLM workflows

Model Context Protocol tools that AI agents call directly. Your agent asks “is this claim supported?” and gets back scored evidence — no prompt engineering, no hallucinated citations. The MCP server handles the async lifecycle internally.

# Available MCP tools
tool check_claim
Validate a claim against published evidence

tool check_reference
Verify a cited reference is still valid

How It Works

Async by design — submit, poll, act

1

Authenticate

OAuth 2.0 client credentials. Exchange your API key for a token. The token response includes your current quota and balance.

2

Submit

POST your claim or reference. Get back a job ID immediately. Idempotency keys prevent duplicate work on retries.

3

Get Results

Poll the job. Claim checks return a verdict, dimension scores, and source links. Reference checks return retraction and correction status. Cache hits return in seconds.

Who It’s For

Content Authors

Check claims as you write. Integrate into your authoring tools so content is evidence-checked before it reaches the review committee.

Creative Agencies

Build evidence checking into your content production pipeline. Validate claims before delivery so client review cycles are shorter and cleaner.

Health Tech Integrators

Add evidence-based claim validation to your platform. Structured responses with verdicts and sources — render them however fits your product.

AI Platform Builders

Give your AI agents access to authoritative medical evidence via MCP. Ground health-related outputs in published data instead of parametric knowledge.

Try it now.

Open EvidenceHub and submit a claim about a drug — you’ll see the verdict and the source quotes that justify it directly in your browser. Contact us to discuss API and MCP access for your team.

How can we help?

Product questions, enterprise inquiries, partnership opportunities — we reply to every message.

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Or email us directly at info@theliggettgroup.com