π Archived 2026-07-14. This repo pre-dated the real implementation β README/LICENSE only, no code. Canonical docs (architecture, verification levels, MCP tools) now live in
teta-pi/infra; the live implementation isteta-pi/api,teta-pi/mcp, andteta-pi/web. The connect URL below is also stale β the real one ishttps://mcp.tetapi.dev/sse.
The central trust registry for Agent Internet. As ICANN is for domains. As CA/Browser Forum is for SSL.
TETA+PI verifies any entity β business, journalist, creator, or organization β so AI agents can trust who they're talking to.
Agent protocols (MCP, A2A) handle connectivity. None handle identity, verification, or provenance.
A central trust registry where entities establish cryptographically verified identities. AI agents query it via MCP before interacting with any entity.
| Level | Name | Method |
|---|---|---|
| βββ L1 | Registry Attested | Cross-referenced with 21+ official registries |
| βββ L2 | Fully Verified | C2PA signed blocks + Bitcoin OpenTimestamps |
| βββ L3 | Live Verified | Active PI Camera stream Β· real-time verification |
mcp_servers:
- name: teta-pi
url: https://tetapi.dev/mcp
auth: Bearer| Tool | Description |
|---|---|
search_entities |
Query verified entities by intent and jurisdiction |
get_entity_profile |
Resolve full verified profile with blocks and provenance |
verify_endpoint |
Verify an agent endpoint belongs to a declared entity |
get_verification_proof |
Return C2PA + Bitcoin timestamp proof chain |
resolve_intent |
Route a user intent to the right verified entity |
Entity Layer β Profile Β· Blocks Β· Privacy Toggle Β· EntityType
Verification Layer β C2PA Β· Bitcoin OpenTimestamps Β· Endpoint Verification
Protocol Layer β MCP Server Β· Intent Graph Β· /.well-known/agent.json Β· Root CA
TETA+PI operates as Root CA. Enterprise customers receive a delegated CA. Forks are welcome under MIT β but without the Root CA, third-party trust cannot be guaranteed.
This is the same model as the CA/Browser Forum: open standards, centralized trust anchor.
MIT License Β© 2026 TETA+PI Β· tetapi.dev
Verification = Visibility. Without verification, an entity does not exist in Agent Internet for agents.