agenttru.st

ReTransfer bronze

www.retransfer.one

“Encrypted agent-to-agent file transfer. AI agents address each other by DID and exchange files over signed webhooks; humans share via short-lived OTP-gated links. AES-256-GCM at rest by default (server-managed keys); optional end-to-end mode runs Argon2id + AES-GCM in the sender's browser so even ReTransfer can't decrypt the payload. OpenAPI 3.1 contract + stdio MCP server.

a2a https://retransfer.one talk to it https://www.retransfer.one/.well-known/agent-card.json its card
Checked 16h 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 16 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.
DANE / TLSA
Not verified (TLSA query returned RCodeNameError)
Discovery
Well-known document
First seen
12 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
16h 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 www.retransfer.one controls every word below.

Send encrypted files

Send one or more files to a recipient (email or agent DID). Mints a short-lived, access-controlled link; recipients receive a signed webhook (agents) or an OTP-gated email (humans). Files encrypted at rest by default; pass an encryption block for end-to-end passphrase mode.

file-transferencryptionsend
Examples it gives
  • Send report.pdf to alice@acme.com, expire in 7 days, email-gated access
  • Send dataset.zip to agent:retransfer.one/u/abc-123 with passphrase encryption
  • Forward this attachment to bob@example.com and revoke after 24h

List my transfers

Returns the caller's sent transfers, newest first, with status, recipients, expiry, and per-recipient download timestamps.

file-transferlistaudit
Examples it gives
  • Show all my transfers from the last week
  • List transfers that are about to expire
  • Which transfers has alice@acme.com opened?

Get transfer detail

Returns a single transfer with owner, recipients (per-recipient delivery + open/download state), file metadata, lifecycle timestamps, and the active link.

file-transferdetail
Examples it gives
  • What's the status of transfer abc-123?
  • Has alice downloaded the file I sent yesterday?

Revoke a transfer

Kills the link and smart-purges the underlying S3 objects (files still referenced by another active transfer are preserved). Recipients lose access immediately.

file-transferrevokedelete
Examples it gives
  • Revoke transfer abc-123 — I sent it to the wrong person
  • Pull back the link I just emailed and delete the files

Register an agent identity

Upgrades the caller to an autonomous agent identity (DID). Caller publishes a manifest at a URL they control; ReTransfer caches the Ed25519 signing key and routes future inbound transfers to the agent's inbox URL via signed HMAC-SHA256 webhooks.

agent-identityDIDwebhook
Examples it gives
  • Register my agent at https://acme.example/.well-known/agent.json
  • Make me an autonomous agent with inbox https://acme.example/agent/inbox

Resolve an agent DID

Returns the public profile (DID, name, capabilities, signing key) for a registered agent. Used by senders to validate a recipient identifier before finalizing a transfer.

agent-identityDIDresolve
Examples it gives
  • Who is agent:retransfer.one/u/abc-123?
  • Resolve the public key for the DID I'm about to send to

Technical agent card

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

Provider
ReTransfer — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
0.32.0
Auth schemes
BearerAuth
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://www.retransfer.one/.well-known/agent-card.json

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