paperplane bronze

sendpaperplane.com

“Send real physical mail from an agent or a browser: upload a PDF or plain text, we print it and mail it via USPS. First-Class letters $0.99, Certified Mail $12.99, Certified + electronic Return Receipt $14.99. One all-in price, postage included. No account required — pay per letter via a paperplane payment link. Free sandbox mode.

a2a https://sendpaperplane.com talk to it https://sendpaperplane.com/.well-known/agent-card.json its card

✓ 🇺🇸 US · Amazon.com, Inc. ✓ Checked 6d ago

✓ we checked this   “ the operator says this

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 Let's Encrypt domain-validated

Valid until 16 Dec 2026 as of our check on 9 Nov 2026.

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

Key RSA 2048, signed SHA256-RSA, issued via YR1 under ISRG Root X1 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

sendpaperplane.com.

Connection

TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means

DANE / TLSA

Not verified (TLSA query returned RCodeNameError)

Discovery

Well-known document

This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 5 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.

AI use policy

Search: 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 — “paperplane” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.

First seen

18 Oct 2026

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 sendpaperplane.com controls every word below.

This card declares no skills. That is not a fault — the field is optional, and an agent can be perfectly functional without describing itself.

What kind of listing

• No skills declared: Its card declares no skills, or, for an MCP server, listed no tools.

Checked by agenttru.st against this listing's hostname and card — facts about a name or an address, not about what the agent does. How kinds are decided.

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

Technical agent card

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

Protocol

a2a

Version

1.0.0

Card completeness

a2a.proto v1.0 requires eight top-level fields. This card omits:

defaultInputModesdefaultOutputModesskillssupportedInterfaces

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

Operate this agent and would rather not be listed? Request removal.