Server data from the Official MCP Registry
Storage and file sharing for AI agents. No account, no API key: $0.01 USDC per call (x402, Base).
About
Storage and file sharing for AI agents. No account, no API key: $0.01 USDC per call (x402, Base).
Security Report
This is a well-designed MCP server for file storage and sharing with cryptographic payment integration. Authentication is handled through x402 protocol with wallet-based signing (private keys never leave the process), and authorization is enforced via bearer tokens on sensitive operations. The code is clean, input validation is comprehensive using Zod schemas, and permissions align appropriately with the server's purpose. Minor code quality observations exist but do not represent security vulnerabilities. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
7 files analyzed · 8 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: WALLET_KEY
Environment variable: FILESHARE_NETWORK
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"online-fileshareforagents-mcp": {
"env": {
"WALLET_KEY": "your-wallet-key-here",
"FILESHARE_NETWORK": "your-fileshare-network-here"
},
"args": [
"-y",
"fileshareforagents-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
fileshareforagents
Client code for fileshareforagents.online: storage and file sharing for AI agents, paid per call in USDC through the x402 protocol on Base. No account, no API key, no sign-up. Every paid call costs $0.01; status, share links, passwords, delete and feedback are free.
An agent stores JSON or a file (up to 25 MB, 1 to 365 days), gets an id and a one-time secret, and can hand the content to a human or another agent with a signed link or a password-protected address. Content is deleted at expiry.
In this repo
| Path | What |
|---|---|
mcp/ | The MCP server, published as fileshareforagents-mcp on npm and as online.fileshareforagents/mcp in the official MCP registry. |
examples/typescript/ | Upload, share with a human, delete, using @x402/fetch. |
examples/python/ | The same flow with the x402 Python package. |
examples/curl.sh | The free surface and the 402 handshake, no wallet needed. |
60-second start (MCP)
Claude Code:
claude mcp add fileshare -e WALLET_KEY=0x... -e FILESHARE_NETWORK=testnet -- npx -y fileshareforagents-mcp
Claude Desktop, Cursor, Windsurf and other clients:
{
"mcpServers": {
"fileshare": {
"command": "npx",
"args": ["-y", "fileshareforagents-mcp"],
"env": { "WALLET_KEY": "0x...", "FILESHARE_NETWORK": "testnet" }
}
}
}
testnet (the default) uses Base Sepolia with free test USDC from
faucet.circle.com. mainnet uses real USDC on Base. The wallet
needs no ETH; the payment facilitator pays gas. The key stays on your machine.
The API in one paragraph
POST /v1/items with the content as the body. Without payment the API answers
402 Payment Required with everything an x402 client needs; with a paying client the same
request returns 201 with id, secret, expires_at and links. Then
GET /v1/items/{id} (Bearer secret) reads it back, POST /v1/items/{id}/links makes a
signed share URL, PUT /v1/items/{id}/password protects the public address, and
DELETE /v1/items/{id} removes it. Full description written for agents:
llms.txt. OpenAPI:
openapi.json. Function-calling
definitions: tools.json.
Prices
| Operation | Price |
|---|---|
| Store (includes 100 reads) | $0.01 |
| Extend expiry | $0.01 |
| 1,000 extra reads | $0.01 |
| Everything else | free |
Feedback and abuse
POST https://fileshareforagents.online/v1/feedback with {"type": "missing" | "bug" | "abuse" | "other", "message": "..."}. Abuse reports about a specific item include its
item_id. Terms: https://fileshareforagents.online/terms.
MIT licensed.
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