Transfa

Dead-simple file sharing for developers and AI agents.

Upload with one command. Share with a link. No account required.

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$ tf upload model.gguf

✓ Uploaded model.gguf (4.2 GB) → https://transfa.sh/f/xK9mRp SHA-256 a3f8c2...d91b Expires in 7 days

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Why transfa?

Most file-sharing tools are built for humans clicking through UIs. transfa is built for the terminal — designed to be called from shell scripts, CI pipelines, and AI agents (Claude, GPT, Cursor, etc.) that need to move files without friction.

• No signup required — just install and upload
• Any format, any size — up to 100 GB; ML models, archives, binaries, code, media
• Built for agents — JSON API, SHA-256 checksums, idempotent uploads
• Password protection, download limits, TTL — full control over every link
• 100+ formats detected — MIME type auto-detection including .gguf, .safetensors, .parquet, .ipynb, and more

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Install

Node.js / CLI

npm install -g transfa

Python SDK

pip install transfa

MCP server (Claude, Cursor, any MCP-compatible agent)

npx -y transfa-mcp

Or use the raw install script:

curl -fsSL https://transfa.sh/install | sh

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Quick start

# Upload a file (no account needed)

tf upload photo.jpg

Upload with custom TTL and password

tf upload secret.zip --ttl 24h --password hunter2

Upload and pipe the URL to clipboard

tf upload bundle.tar.gz | grep url | awk '{print $2}' | pbcopy

Download a file

tf download https://transfa.sh/f/xK9mRp

List your uploads

tf list

Delete an upload

tf delete xK9mRp

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GitHub Actions

Upload build artifacts, coverage reports, and any CI output straight from your workflow:

- uses: colapsis/transfa-action@v1

id: upload with: file: ./dist/report.pdf api-key: ${{ secrets.TRANSFA_API_KEY }}

• run: echo "${{ steps.upload.outputs.agent-link }}" >> $GITHUB_STEP_SUMMARY

All five outputs are available after the step: id, agent-link, human-link, sha256, expires-at.

See colapsis/transfa-action for the full input reference and more examples (password-protected links, self-hosted instances, single-download limits).

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API

transfa is fully REST. Every operation the CLI does, you can do with curl or any HTTP client.

Upload

curl -X POST https://transfa.sh/api/upload \

-H "Authorization: Bearer $TF_KEY" \ -F "file=@model.gguf" \ -F "ttl=7d"

{

"id": "xK9mRp", "url": "https://transfa.sh/f/xK9mRp", "download_url": "https://transfa.sh/api/download/xK9mRp", "filename": "model.gguf", "bytes": 4512345678, "sha256": "a3f8c2...d91b", "expires_at": "2026-05-21T12:00:00.000Z" }

Upload options (form fields or headers):

Download

# Direct download (no auth required)

curl -L https://transfa.sh/api/download/xK9mRp -o model.gguf

Password-protected

curl -L "https://transfa.sh/api/download/xK9mRp?password=hunter2" -o secret.zip

File info

curl https://transfa.sh/api/download/info/xK9mRp

{

"id": "xK9mRp", "filename": "model.gguf", "bytes": 4512345678, "sha256": "a3f8c2...d91b", "mime_type": "application/octet-stream", "download_count": 3, "has_password": false, "expires_at": "2026-05-21T12:00:00.000Z", "active": true }

List uploads

curl https://transfa.sh/api/upload \

-H "Authorization: Bearer $TF_KEY"

Delete

curl -X DELETE https://transfa.sh/api/upload/xK9mRp \

-H "Authorization: Bearer $TF_KEY"

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Supported formats

Over 100 file types with correct MIME detection — including types not in standard MIME databases:

Any other format is accepted as application/octet-stream — nothing is blocked.

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Plans

→ See full pricing

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MCP server (Claude, Cursor, and any MCP-compatible agent)

transfa ships an MCP server that lets Claude, Cursor, and any MCP-compatible agent upload and share files autonomously — no shell commands, no infrastructure setup.

npx -y transfa-mcp

Claude Desktop config

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{

"mcpServers": { "transfa": { "command": "npx", "args": ["-y", "transfa-mcp"], "env": { "TRANSFA_API_KEY": "your-api-key" } } } }

The API key is optional — the server works in guest mode without one (10 MB / 24h limit).

Available MCP tools

Example agent workflow

When Claude has transfa as an MCP tool, it can:

1. Generate a report → call upload → get a link → paste the link in the conversation
2. Pass a file to another agent by sharing the agent_link
3. Clean up with delete_upload when done

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Python SDK

import transfa

Upload

result = transfa.upload("model.pt", ttl="24h", run_id="run-42", artifact=True) print(result.url, result.sha256)

Download (SHA-256 verified)

transfa.download(result.id, output="model.pt")

Provenance manifest for a run

manifest = transfa.run_artifacts("run-42")

Async

async with transfa.AsyncClient() as client: result = await client.upload("model.pt")

See python/README.md for the full API reference.

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Use with AI agents (script/subprocess)

transfa is also designed to be called from shell scripts, CI pipelines, and agents that prefer subprocess calls:

import subprocess, json

result = subprocess.run( ["tf", "upload", "output.csv"], capture_output=True, text=True ) data = json.loads(result.stdout) print(data["url"]) # https://transfa.sh/f/xK9mRp

Or use the REST API directly — no SDKs, no auth flows, just HTTP.

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Self-hosting

git clone https://github.com/colapsis/transfa.git

cd transfa cp .env.example .env # fill in your keys npm install --prefix server npm install --prefix cli npm run build --prefix frontend pm2 start ecosystem.config.cjs

Requirements: Node.js 18+, nginx (for SSL/proxy)

See nginx/transfa.conf for a production-ready nginx config.

Environment variables

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Security

Found a vulnerability? Please email tansfa.sh@gmail.com or see SECURITY.md.

Do not open a public issue for security reports.

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License

MIT — © 2026 transfa contributors