Trace the Truth.Screenshots strip context. By the time something goes viral, it’s been cropped, captioned, and misattributed. Postcard uses AI-powered corroboration and live site auditing to restore that context and give you a credibility verdict you can trust.
Quick start
Verify your first post in under a minute
How it works
Understand the 4-stage forensic pipeline
API reference
Integrate Postcard into your own tools
Postcard Score
Learn how the credibility score is calculated
What Postcard does
Postcard runs a four-stage forensic pipeline on any social media post URL:- Ingest — Fetches live content and metadata from the platform using platform-specific strategies (oEmbed, native APIs, or Jina Reader fallback).
- Audit — Verifies the post is reachable at its claimed origin using Gemini with Google Search, and checks that timestamps are consistent with the reported narrative.
- Corroborate — Searches trusted news and fact-checking domains with Google Gemini to find independent sources that support or refute the content.
- Score — Combines origin reachability, corroboration confidence, bias analysis, and temporal alignment into a single weighted Postcard Score.
Supported platforms
Postcard supports direct forensic verification for posts on X (Twitter), Reddit, YouTube, Instagram, Bluesky, and Threads — with generic fallback support for any public URL via Jina Reader.Submitting a URL
How to start a forensic trace
Reading a report
Understand the verdict and subscores
Supported platforms
Platform coverage and limitations
API key setup
Configure your Gemini API key