About For Businesses For Agents Registries Start →
Trust Infrastructure for Digital Entities

Be found by AI agents.
Get verified on TETA+PI.

Verified entities are visible in agent search.
Unverified ones don't exist in Agent Internet.

People, companies, APIs, AI models, MCP servers, agents — one registry for every digital entity.

Create your page Search entities →
registry:attested · c2pa:verified · btc:confirmed
✓ Verified in 10 min ✓ C2PA + Bitcoin timestamp ✓ Agents find you first
The problem

AI agents are already searching, booking, and transacting.

But they can't verify who they're dealing with. TETA+PI closes that gap.

The EU AI Act's Article 50 C2PA content-labeling obligation has been in force since 2 August 2026.

$7.84B
AI agent market, 2025 ↗
$52.62B
Projected 2030 · CAGR 46.3% ↗
40%
Enterprise apps with agents by 2026 ↗
13,853
MCP servers · +3,900% in 17 months ↗

Search · Negotiation · Payments: automated. Verification: ← still unsolved.

Search
✓ solved
Negotiation
✓ solved
Payments
✓ solved
Verification
← TETA+PI

Agent protocols (MCP, A2A) handle connectivity. None handle identity, verification, or provenance.

arXiv:2502 · Agent-OSI · February 2026 ↗
Three layers of trust

Registry. C2PA. Bitcoin. One protocol.

Three independently checkable layers, accessed by AI agents via MCP — one call, three proofs.

Layer 1 · Registry
Who are they?
We query official registries — Handelsregister, GLEIF, EU VAT, DE-ÖKO — and attest the result on-chain.
registry:attested
Layer 2 · C2PA
Did they create this?
Verified entities sign content with a cryptographic key. Any C2PA-aware tool verifies it — without asking us.
c2pa:verified
Layer 3 · Bitcoin
When was this proven?
Each verification record is hashed and anchored to the Bitcoin blockchain — permanent, independent of our servers.
btc:anchored
Create a page. Add blocks. One registry for every entity.
Prove it by registry match, business email, or domain ownership. Add blocks — content, documents, video — signed with C2PA and anchored on Bitcoin. No forms, no categories. Your profile becomes an endpoint agents route to.
👤 People 🏢 Companies 🌐 Domains & APIs 🧠 AI Models 🔗 MCP Servers 🤖 AI Agents
Try it now

This isn't a claim. Check it yourself.

A real profile, a real Bitcoin anchor, a real MCP endpoint — no sign-up required to verify any of it.

Live profile
app.tetapi.dev/e/tetakta
A real verified entity page — open it, it's public. View →
Bitcoin anchor
Block 971,703
One of this profile's verification records, timestamped on Bitcoin. Verify on a public explorer →
MCP endpoint
mcp.tetapi.dev
7 tools live, no API key needed. Connect below.
terminal 
claude mcp add --transport http teta-pi https://mcp.tetapi.dev/mcp

No auth, no setup — every tool call hits the live registry.

For agents & developers

Your agent already knows how to connect.

Connect TETA+PI MCP to any agent in one line.

Claude, GPT, custom — any MCP-compatible agent works. No API key for the read-only tools.

claude_desktop_config.json 
"mcpServers": {
  "teta-pi": {
    "type": "http",
    "url":  "https://mcp.tetapi.dev/mcp"
  }
}
teta_search
Search by name, domain, type, jurisdiction, or verification level.
teta_verify_entity
Verify any entity — business, journalist, artist — by name or ID.
teta_verify_endpoint
Verify a domain or URL against the registry and get its entity profile.
teta_get_proof
Return raw cryptographic proof — C2PA manifest + Bitcoin anchor.

Open-source library. MIT license. No CMS? One script tag makes any static site agent-readable too.

Full developer docs → Get your Universal Tag → GitHub → API reference →
Level 3 amplifier · PI Camera

When a verified profile isn't enough — you show it live.

PI Camera is the amplification layer for entities that need continuous proof. C2PA-signed at capture. Anchored on Bitcoin. Streamed to your verified profile.

Journalists & reporters
Shoot from the field. Every frame is signed before it leaves the phone.
c2pa:capture:signed → btc:ts:confirmed
Businesses & producers
Verify production runs, supply chain, authentic output. Connect via API.
stream:live → agent:queryable → profile:live
Artists & creators
Prove you created it — not AI. Every piece signed at creation.
human:created → not:ai:generated → c2pa:signed
Explore PI Camera →
Pricing

Free to use. In full.

Registry, email & domain verification, C2PA via Pi Camera, Bitcoin timestamps, agent discovery, MCP, privacy toggles — every feature works from the first minute. New pages ship with 10 blocks included.

Free
$0
forever
✓Registry, email & domain verification
✓C2PA via Pi Camera
✓Bitcoin timestamps
✓Agent discovery + MCP
✓Privacy toggle per block
✓10 blocks included
Start free →
More blocks
$7+
one-time, no subscription
+10 blocks$7
+100 blocks$49
+1000 blocks$149
Get more blocks →
Enterprise
Custom
talk to us
Need something beyond the standard plan? Get in touch.
Contact us →
Verification status is never for sale. Ranking by relevance, not payment.

Without verification — you don't exist in Agent Internet.

Free to use, in full · 10 blocks included · more blocks from $7, one-time
Start → Search entities