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Base Payment Assurance MCP Server

by pghannmmn Your server? Claim it
answering

Base Payment Assurance is answering right now. Last checked 10 min ago. It exposes 7 tools.

Dual-RPC Base USDC payment assurance with safe finality and exact transfer matching.

Uptime history 5 days of history · worst day 99%
5 days agonow
100.0%
Uptime 24h
92 of 92 checks
7
Tools
read from the server
119 ms
Response time
average over 24h
open, no key
Access
streamable-http

Base Payment Assurance missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add base-payment-assurance --transport http https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "base-payment-assurance": {
      "url": "https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.base-payment-assurance]
url = "https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "base-payment-assurance": {
      "url": "https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "base-payment-assurance": {
      "url": "https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

credit
get_credit_balance
Check the remaining prepaid credits for the bearer token configured on this MCP connection. This call is free and does not consume credits.
decode
decode_usdc_transfers
Decode all native Circle USDC Transfer logs from a Base transaction only after dual-RPC receipt agreement and safe finality. A not-found, failed, or not-yet-safe transaction is returned as an assurance result; RPC infrastructure failures refund the credit. Costs 1 credit.
payment
get_payment_info
Free instructions for buying this service's prepaid API credits with direct native Base USDC. Returns the exact receiver, package amount, credit quantity and self-service purchase path. This funding payment is separate from any transaction that you later ask the assurance tools to inspect.
safe
get_safe_head
Return the conservative Base Mainnet safe head after consulting both configured public RPCs. If the RPC quorum is unavailable or inconsistent, the call fails closed and the spent credit is refunded. Costs 1 credit.
service
get_service_info
Free overview of the Base Payment Assurance service. Use this to learn the supported chain/token, dual-RPC quorum, safe-finality requirement, exact-transfer policy, fail-closed behavior, and per-call credit cost. This tool does not inspect a transaction and does not require a bearer token.
transaction
get_transaction_status
Check whether a Base Mainnet transaction is not found, confirmed, safe, or failed using two independent RPCs. No payment assumptions are made. RPC quorum/inconsistency failures refund the credit. Costs 1 credit.
verify
verify_usdc_payment
Assure that a specific Base transaction contains an exact native Circle USDC Transfer from the expected payer to the expected receiver for the exact atomic amount. Verification requires two-RPC receipt agreement and safe finality. Use a decimal atomic amount string (USDC has 6 decimals). RPC infrastructure failures refund the credit. Costs 1 credit.

Endpoints

URLTransportStateLatencyChecked
https://base-payment-assurance-002.qqqa16521-dce.workers.dev/mcp streamable-http answering 123 ms 10 min ago

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Base Payment Assurance — questions

Answers built from our own checks of this server.

What can Base Payment Assurance do?
It exposes 7 tools, read directly from the server on our last check. Among them: decode_usdc_transfers, get_credit_balance, get_payment_info, get_safe_head, get_service_info, get_transaction_status and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Base Payment Assurance working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 119 ms. The bar chart above shows every period we have measured.
How do I connect Base Payment Assurance?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Base Payment Assurance need an API key?
No. Base Payment Assurance completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Base Payment Assurance?
It answers our handshake in 119 ms on average, which is faster than 78% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.