
TETA+PI is trust infrastructure for digital entities — verified people,
companies, APIs, AI models, MCP servers and agents, discoverable by AI agents.
This plugin lets a site owner:
- Connect the site to their TETA+PI entity with a personal API key.
- Prove domain ownership (DNS TXT record or a well-known file, whichever is
easier) directly from the WordPress admin. - Display a verified-entity badge anywhere via the
[tetapi_badge]shortcode
or the “TETA+PI Badge” widget. - Make the site agent-readable: once connected, the plugin adds a
machine-readable JSON-LD block to every page’s<head>, and serves
/.well-known/agent.json,/.well-known/agent-card.jsonand/llms.txt
from your own domain — so AI agents and crawlers (including ones that
don’t execute JavaScript) can read your verified-entity data directly,
not just see a visual badge.
Makes your site discoverable and verifiable by AI agents, LLMs and answer
engines (AEO/GEO) — not just search engines.
This release is 100% free — every feature above is fully functional with no
payment required. Two premium modules are planned for later: Module #1
($25) — additional badge styles, automatic placement, multi-entity support,
WooCommerce integration — and Module #2 ($52), a further tier coming
after that. Neither is for sale yet; the settings page shows what’s planned
and has a field to redeem a free code if TetaPi gives you one (e.g. as a
thank-you for a social-media shoutout).
Learn more at tetapi.dev.
External services
This plugin connects to api.tetapi.dev, the TETA+PI API. It is operated by
TetaPi GmbH, the same company that develops this plugin, and is required for
the plugin’s core functionality: connecting your site to your TETA+PI
entity, proving domain ownership, and displaying your trust badge.
What is sent, and when:
- When you save your Personal API Key under Settings > TETA+PI, that key is
sent toGET /businessesto list the entities it can access. The key is
stored encrypted at rest (using your site’s own WordPress salts), not in
plain text. - When you click “Start verification” or “Check now”, your site’s domain
(auto-detected from your site URL) and your chosen entity ID are sent to
POST /businesses/{id}/verify/domain/start and
POST /businesses/{id}/verify/domain/check respectively, to prove you
control the domain. - Whenever the
[tetapi_badge]shortcode or the “TETA+PI Badge” widget is
displayed on any page, your connected entity’s slug is sent to the public,
unauthenticatedGET /businesses/by-slug/{slug}/publicendpoint to fetch
your badge data. This response is cached for 15 minutes (WordPress
transient) to limit requests. No visitor-identifying data is sent — every
visitor triggers the same request for the same public entity data. - On every page load (for the JSON-LD block) and whenever
/.well-known/agent.json,/.well-known/agent-card.jsonor/llms.txt
is requested on your site, your connected entity’s ID is sent to the
public, unauthenticatedGET /wk/{entity_id}/*endpoints to fetch
agent-readable data about your entity. Also cached for 15 minutes. No
visitor-identifying data is sent.
No data is sent to any other third party.
Terms of Service: https://tetapi.dev/terms
Privacy Policy: https://tetapi.dev/privacy
Screenshots

Settings > TETA+PI — connect your entity with a personal API key.

Domain ownership verification status and controls.
![The TETA+PI trust badge, rendered via the [tetapi_badge] shortcode on a page.](https://ps.w.org/tetapi/trunk/screenshot-3.png?rev=3664277)
The TETA+PI trust badge, rendered via the [tetapi_badge] shortcode on a page.

The "TETA+PI Badge" widget added to a sidebar.