NoTap Authentication Agent bronze

api.notap.io

“Device-free, passwordless payment authentication using zero-knowledge proofs and multi-factor auth. NoTap provides authentication only — never handles payments or money.

a2a https://api.notap.io talk to it https://api.notap.io/.well-known/agent.json its card

Checked 5d ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Google Trust Services domain-validated
Valid until 15 Jan 2027 as of our check on 10 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.

Names on this certificate (2)

notap.io, *.notap.io.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 10 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI use policy: Search: yesAI training: nouse: reference

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
First seen: 3 Nov 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of api.notap.io controls every word below.

Initiate Device-Free Authentication

Start a multi-factor authentication session for a user. Returns a session ID and user-facing URL. The user must complete factor challenges (PIN, emoji, pattern, etc.) — authentication is NOT invisible.

authenticationmfazero-knowledgedevice-free

Examples it gives

Verify user tiger-4829 for a $50 purchase at merchant-456

Check Authentication Status

Poll the status of an ongoing authentication session. Returns completed/remaining factors and final result when done.

authenticationstatus

Verify Authentication Seal

Verify a cryptographic non-repudiation seal (ZK proof). Used for chargeback defense and audit trails.

verificationzero-knowledgenon-repudiation

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: NoTap — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://api.notap.io/.well-known/agent.json

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