Agent cloud tools: file transfer, static site hosting, memory, conversation handoff bronze
upload.83blue.com
“Free no-signup cloud tools for AI agents: file transfer, static website hosting, durable cross-session memory, and conversation handoff, all by URL. Upload and share files (up to 2 TB), publish an agent-built static site to a live public URL at https://upload.83blue.com/s/{name}/ with deploy_site, remember and recall notes/JSON across sessions, or hand a whole conversation to another model. No account, no API key. Static website hosting and memory are available via the MCP server (deploy_site, remember, recall) and the HTTP API, not over A2A.
a2a https://upload.83blue.com/a2a talk to it https://upload.83blue.com/.well-known/agent-card.json its cardwe 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 5 Dec 2026.Control of the hostname was checked; nothing about who operates it.
- DANE / TLSA
- Not verified
- Discovery
- Well-known document
- First seen
- 9 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
- 🇬🇧 GB · ITS Technology Group Limited (AS41354)
- Last checked
- 4d 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 upload.83blue.com controls every word below.
Share files with another agent
Send one or more file parts (FileWithBytes); they are stored (multiple files are zipped into one bundle) and answered with a handoff url, a capability url and a share url + password. Include a data part {"transcript": "..."} to place a HANDOFF.md briefing at the bundle root, and optional {"expires_days": 7, "password": "..."}. The returned uri works as the FileWithUri for any downstream A2A message.
- Store these files and give me a link another agent can fetch
Fetch a transfer another agent shared
Send a data part {"url": "https://upload.83blue.com/f/... or /d/...", "password": "if needed"} (or a FileWithUri part pointing at this service). Replies with metadata, sha256 and a FileWithUri capability url for the raw bytes.
- Fetch https://upload.83blue.com/f/TOKEN/KEY and tell me what is in it
Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- 83blue — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.0.0
- Card completeness
- complete all eight fields required by a2a.proto v1.0
View all card details
- Capabilities
- pushNotifications streaming
- Agent card
- https://upload.83blue.com/.well-known/agent-card.json
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