# answer.ad

> The public reference for answer advertising: paid placements inside AI answers (ChatGPT, Google AI Overviews and AI Mode, Perplexity, Microsoft Copilot, Amazon Rufus). Free to read. Every claim is labelled Observed, Platform-stated or Inferred.

## Reference
- [Registry](https://answer.ad/lookup): which formats are live, announced or unavailable, by region
- [Registry JSON](https://answer.ad/api/public/registry.json)
- [Glossary JSON](https://answer.ad/api/public/glossary.json)
- [Criteria JSON](https://answer.ad/api/public/criteria.json)
- [Google: Ads in AI Overviews](https://answer.ad/lookup/google-ai-overviews-ads)
- [Google: Ads in AI Mode](https://answer.ad/lookup/google-ai-mode-ads)
- [Perplexity: Sponsored follow-up questions](https://answer.ad/lookup/perplexity-sponsored-questions)
- [Microsoft: Ads in Copilot](https://answer.ad/lookup/microsoft-copilot-ads)
- [Amazon: Sponsored prompts in Rufus](https://answer.ad/lookup/amazon-rufus-sponsored-prompts)
- [OpenAI: Ads in ChatGPT](https://answer.ad/lookup/chatgpt-ads)

## Read
- [The Brief and research](https://answer.ad/read)

## Check
- [Stack and scope test](https://answer.ad/check)

## Trust
- [Charter](https://answer.ad/charter)
- [Data policy](https://answer.ad/data-policy)
- [Disclosures](https://answer.ad/disclosures)
- [Corrections](https://answer.ad/corrections)

## Agents
- MCP server: https://answer.ad/mcp (sign-in required, approval screen)