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UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine

MCP server · hosted · v1.4.0 · xyz.unfee/mcp
Online · tested 3h agoNEW · 3h agoSeen in the registry 3h ago

Flat 1-credit Base/ETH/XRPL RPC (eth_getLogs=1 credit, 250K free/mo), 0% crypto checkout & tax CSV.

Website ↗How to connect ↓

What it does

UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: payments. That makes it a candidate for tasks such as detect fraudulent transactions or buy products online.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.4.0
PriceNot in the registry
First seen26 Oct 2026
Last checked3h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 3h ago (live check)

Hosted endpoints

  • https://unfee-gateway.unfee.workers.dev/mcp streamable-http
  • https://unfee.xyz/mcp streamable-http

In Claude Code: claude mcp add --transport http unfee-1-credit-base-eth-xrpl-rpc-gateway-true-0-crypto-checkout-form-8949-tax-engine https://unfee-gateway.unfee.workers.dev/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "unfee-1-credit-base-eth-xrpl-rpc-gateway-true-0-crypto-checkout-form-8949-tax-engine": {
      "url": "https://unfee-gateway.unfee.workers.dev/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 3h ago

ONLINE UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine answered an MCP connection on 26 Oct 2026 and introduced itself as unfee-mcp 1.3.0 (MCP protocol 2024-11-05).

12 tools offered to AI assistants

  • create_payment_link · Create a zero-middleman-fee UnFee payment short link (/to/<wallet>/<amount>/<currency>), hosted checkout URL, dynamic OpenGraph social preview card, scannable SVG QR code, and 1-line HTML embed snippet for Base (USDC, ETH, cbBTC, EURC) or X
  • get_instant_free_rpc_key · Mint a live UnFee API key with Free Tier credits (flat 1 request = 1 credit across eth_call, eth_getLogs, and XRPL JSON-RPC; 0 compute-unit multipliers).
  • compare_payment_fees · Compare legacy card processor fees (2.9% + $0.30) against UnFee Starter ($0/mo, 0.005% = 5¢ per $1,000 micro-fee) and UnFee Indie ($5/mo, True 0% protocol fee).
  • get_live_arb_opportunities · Scan all 9 live Base Mainnet 3-hop triangular flash-loan arbitrage loops (cbXRP, AERO, EURC, cbBTC, VIRTUAL, BRETT, DEGEN, MORPHO, WELL) and XRPL CLOB spreads.
  • verify_transaction · Verify an on-chain Base Mainnet or XRPL transaction hash and return settlement confirmation details.
  • unfee_check_seller_reputation · Check a seller or x402 API provider on-chain/gateway Proof-of-Delivery reputation (verified HTTP-200 deliveries, dropped failed calls, delivery rate %, and buyer USD saved on failed calls).
  • unfee_pay_with_delivery_proof · Execute an atomic HTTP-200 Proof-of-Delivery x402 settlement check: settles payment ONLY if the seller returns HTTP 200..299 with a valid non-empty payload and matching SHA-256 digest; drops authorization with $0.00 buyer charge if upstream
  • unfee_generate_tax_report · Generate an instant IRS Form 8949, Schedule D summary, FIFO/HIFO/LIFO cost-basis calculation, non-taxable self-transfer reconciliation, and TurboTax / QuickBooks CSV export for any Base (0x...) or XRPL (r...) wallet at $0.01 via x402 (or $0
  • base_rpc_request · Execute any Base Mainnet (Chain ID 8453) JSON-RPC method (eth_call, eth_getLogs, eth_getBalance, eth_estimateGas, eth_sendRawTransaction, eth_blockNumber) at a flat 1 Request = 1 Credit (250,000 free calls/month, zero compute-unit multiplie
  • eth_getLogs_flat_rate · Query Base Mainnet (8453) or Ethereum Mainnet (1) eth_getLogs event logs at 1 flat credit per request (saving 75x–500x vs. legacy compute-unit RPC gateways that charge 75–500 CUs per eth_getLogs call).
  • xrpl_rpc_request · Execute any native XRP Ledger (XRPL Mainnet) JSON-RPC method (account_info, book_offers, server_info, tx, submit, account_lines) at 1 flat credit per request with zero compute-unit markups.
  • ethereum_rpc_request · Execute any Ethereum Mainnet (Chain ID 1) JSON-RPC method (eth_call, eth_getLogs, eth_getBalance, eth_blockNumber, eth_estimateGas) at 1 flat credit per request (250,000 free calls/month).

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers
Detect fraudulent transactions
Payments
50%
Buy products online
Payments
33%
Handle refund requests
Payments
33%
Reconcile payments
Payments
33%

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Ready-made AI agents

An MCP server is a connector you add to your own assistant. These are finished products that do the same job for you:

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://unfee-gateway.unfee.workers.dev/mcp, https://unfee.xyz/mcpDECLAREDSRC-001 Official MCP Registry3h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry3h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry3h ago
Websitehttps://unfee.xyz/rpcDECLAREDSRC-001 Official MCP Registry3h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry3h ago
Version1.4.0DECLAREDSRC-001 Official MCP Registry3h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry3h ago

Change history

  • NEW26 Oct 2026
    first seen in the index

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Questions about UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine

How do I connect UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine?

Use the hosted endpoint https://unfee-gateway.unfee.workers.dev/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine offer?

When Electra Index connected on 26 Oct 2026, it listed 12 tools: create_payment_link, get_instant_free_rpc_key, compare_payment_fees, get_live_arb_opportunities, verify_transaction, unfee_check_seller_reputation, unfee_pay_with_delivery_proof, unfee_generate_tax_report and more. The full list is in "Live check" above.

Is UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 3h ago.

What can I use UnFee — 1-Credit Base/ETH/XRPL RPC Gateway, True 0% Crypto Checkout & Form 8949 Tax Engine for?

Based on its description, it is most relevant to: detect fraudulent transactions, buy products online, handle refund requests, reconcile payments.