Tensorfeed X402 Base Mcp

What is Tensorfeed X402 Base Mcp?

A read-only MCP server for verifying x402 USDC settlements on Base mainnet. It lets any MCP-compatible agent independently audit x402 payment receipts on-chain, parse publisher .well-known/x402 manifests, and check AFTA federation status without private keys, signing, or broadcasts.

How to use Tensorfeed X402 Base Mcp?

Install globally via npm, then add the server to claude_desktop_config.json or use claude mcp add. Configure an optional private RPC URL via the TENSORFEED_RPC_URL environment variable for heavier workloads.

Key features of Tensorfeed X402 Base Mcp

• Read-only chain visibility — no private keys, no signing
• Generic Base tools: balance, usdc_balance, block_number, get_tx_receipt, call, recent_transfers
• x402-native verification: verify_x402_settlement, parse_x402_manifest, probe_x402_endpoint
• TensorFeed flavor tools: verify_afta_federation, tf_payment_lookup, x402_publisher_health, afta_federation_members
• Input validators, output sanitization, 50 KB response cap, RPC allowlist
• No telemetry, no phone-home, no analytics; MIT licensed

Use cases of Tensorfeed X402 Base Mcp

• Verify an on-chain x402 settlement given a tx hash, recipient, and expected USDC amount
• Fetch a publisher’s x402 manifest to understand which endpoints require payment and how
• Probe any HTTPS URL to check if it returns canonical x402 paid 402 response
• Audit USDC transfers to a merchant address over a recent block range
• Check AFTA federation certification for a domain with scored checklist

FAQ from Tensorfeed X402 Base Mcp

How does this differ from Coinbase Base MCP?

Coinbase Base MCP is the transact-side server for proposing swaps, transfers, and x402 payments. This server is the verify-side — it independently confirms on-chain settlement after a payment has been made. They are complementary, not competing.

Does the server require a private key or wallet?

No. The server is read-only; it cannot move funds, sign, or broadcast transactions. It only checks on-chain data.

What RPC endpoint does it use, and can I bring my own?

It defaults to the public Base RPC (https://mainnet.base.org). For heavier workloads, set TENSORFEED_RPC_URL to an Alchemy or Infura URL that matches the allowlist in src/rpc/allowlist.ts.

Does the server phone home or collect telemetry?

No telemetry, no phone-home, no analytics. The server is stateless and only reads from the configured RPC.

How do I report a security issue?

Report security issues to [email protected]. Do not file a public issue or CVE for an unfixed vulnerability.