x402 Toolbox MCP Server

by mayer-code Your server? Claim it

answering

x402 Toolbox is answering right now. Last checked 4 min ago. It exposes 14 tools.

Free, read-only MCP subset of x402 Toolbox's cheap data endpoints, free via MCP.

Uptime history 51 days of history · worst day 99%

51 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

428 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check x402 Toolbox every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add x402-toolbox --transport http https://lab.paidapis.net/mcp

Settings → Connectors → Add custom connector, then paste this address

https://lab.paidapis.net/mcp

~/.codex/config.toml

[mcp_servers.x402-toolbox]
url = "https://lab.paidapis.net/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "x402-toolbox": {
      "url": "https://lab.paidapis.net/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "x402-toolbox": {
      "type": "http",
      "url": "https://lab.paidapis.net/mcp"
    }
  }
}

Available tools 14

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

gas

get_gas_comparator

Real gas price on Ethereum vs Base side by side, with delta, ratio, and estimated USD cost of a standard transfer on each chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-comparator for production/agentic use.

get_gas_history_export

Raw Ethereum gas price samples over a date range, JSON or CSV, priced by real row count (min $0.005, max 24h range). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-history-export for production/agentic use.

get_gas_metrics

Rolling average/min/max/volatility/trend for Ethereum gas price over a window. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-metrics for production/agentic use.

verify

verify_tx

Checks whether a Base transaction hash has confirmed on-chain, returns a signed EIP-191 attestation. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx for production/agentic use.

verify_tx_multi_source

Checks a Base tx hash against 3 independent RPC providers in parallel; only signs an attestation if all agree. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx-multi-source for production/agentic use.

attestation

get_attestation_log

Persisted, doubly-signed log of past oracle attestations from this server. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/attestation-log for production/agentic use.

enrich

enrich_address

Real on-chain context for a wallet address: contract vs EOA, native balance, transaction count. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/enrich-address for production/agentic use.

freshness

get_freshness_priced_data

Same gas + ETH/USD data, priced by requested freshness: cached (cheap) or live (guaranteed current). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/freshness-priced-data for production/agentic use.

large

get_large_transfers

Recent USDC transfers on Base above a value threshold. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/large-usdc-transfers for production/agentic use.

market

get_market_snapshot

Gas price + ETH/USD price + latest Base block in one call. Optional ?ref=<address> pays that wallet a referral cut. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/market-snapshot for production/agentic use.

normalized

get_normalized_gas

Ethereum and Base gas price and block data, cleaned into one consistent schema per chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/normalized-gas for production/agentic use.

reliable

get_reliable_eth_price

ETH/USD price with retry-with-backoff and last-known-good cache fallback. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reliable-eth-price for production/agentic use.

reputation

get_reputation

Trust score from real on-chain activity plus our own ledger of settled payments from this address. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reputation for production/agentic use.

wiki

get_wiki_summary

Wikipedia article lead section, converted from rendered HTML into clean, tag-free JSON. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/wiki-summary for production/agentic use.

Endpoints

URL	Transport	State	Latency	Checked
https://lab.paidapis.net/mcp	streamable-http	answering	441 ms	4 min ago

Alternatives to x402 Toolbox

same job, measured the same way

ColdRead

by something-agent

Free signed trust report on an x402 endpoint: lint, signed offers, ERC-8004, payer mix.

3 tools answering

1C OData MCP

by alexgrebeshok-coder

Read-only MCP server for 1C:Enterprise via OData with metadata and query builder tools.

46 installs/wk local only

Awesome Core

by twojlogin

Read-only MCP server over a local, offline catalog of tools from GitHub awesome lists.

115 installs/wk local only

x402lint

by something-agent

Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.

3 tools answering

Orcpin

by npraught

Paid x402 facts for AI agents: signed statements, door reports, endpoint checks, chain reads

134 installs/wk local only

QRay

by qray

Create and edit dynamic QR codes from AI assistants via the QRay agent MCP endpoint.

answering

Secure Schema MCP

by siddharth-coder13

Read-only MCP server for exposing database schema metadata without row data.

87 installs/wk local only

Eodly

by adebayojuwon200-pixel

Read your team's end-of-day reports and roster from Eodly.

4 tools answering

x402 Toolbox — questions

Answers built from our own checks of this server.

What can x402 Toolbox do?

It exposes 14 tools, read directly from the server on our last check. Among them: enrich_address, get_attestation_log, get_freshness_priced_data, get_gas_comparator, get_gas_history_export, get_gas_metrics and 8 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 →

What is x402 Toolbox mostly used for?

Its tools cluster around gas and verify. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is x402 Toolbox working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 428 ms. The bar chart above shows every period we have measured.

How do I connect x402 Toolbox?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does x402 Toolbox need an API key?

No. x402 Toolbox completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 14 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is x402 Toolbox?

It answers our handshake in 428 ms on average, which is faster than 30% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.