Lumbox bronze

lumbox.co

“Email infrastructure for AI agents. Create email inboxes, extract OTPs and verification links, wait for codes with no polling, and send/reply/forward - over a REST API and a hosted MCP server.

a2a https://mcp.lumbox.co/mcp talk to it https://lumbox.co/.well-known/agent-card.json its card

Checked 1d 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 8 Dec 2026.

Control of the hostname was checked; nothing about who operates it.
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI use policy: Search: yesAI input: yesAI training: no

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.
AI-facing documents: Publishes /llms.txt — “Lumbox” a curated map of the site's content for language models

Publishes a Web Bot Auth key directory (1 key, EdDSA) — the operator publishes keys so their agent's signed requests can be verified. agenttru.st recorded that the directory exists; it has not verified a signature.

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 11 Sep 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: 1d 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 lumbox.co controls every word below.

Create email inbox

Create a real email address the agent owns, usable for signups and verification.

emailinboxprovisioning

Examples it gives

Create an inbox named github-bot
Give my agent an email address

Extract OTP / verification code

Long-poll an inbox and return the parsed OTP, verification link, or magic link as JSON - no polling loop.

otp2faverificationlogin

Examples it gives

Wait for the OTP and return the code
Get the verification link from the latest email

Send / reply / forward

Send a new email or reply with correct threading headers from an agent inbox.

emailsendreply

Examples it gives

Reply to the last support email
Send a confirmation to user@example.com

Search and read email

List, search, and read received email with structured parsed fields and AI categories.

emailsearchread

Examples it gives

List unread verification emails
Find emails from stripe.com

Technical agent card

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

Provider: Lumbox — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Auth schemes: apiKey oauth2
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://lumbox.co/.well-known/agent-card.json

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