Anchor X402 MCP Server

by hypeprinter007-stack Your server? Claim it

answering

Anchor X402 is answering right now. Last checked moments ago. 62 installs a week from npm. It exposes 18 tools. Last commit 4 Sep 2026.

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

Installs per day peak 24 · avg 8 · +0% w/w

a month agotoday

Uptime history 47 days of history · worst day 99%

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

451 ms

Response time

average over 24h

Installs / week

npm and PyPI

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 21 August 2026. No other catalogue keeps this.

21 Aug 2 tools changed the parameters they ask for ledger_report, tldr_text

Nothing serious here today

Today is the operative word: we check Anchor X402 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 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add anchor-x402 --transport http https://api.anchor-x402.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "anchor-x402": {
      "url": "https://api.anchor-x402.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.anchor-x402]
url = "https://api.anchor-x402.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "anchor-x402": {
      "url": "https://api.anchor-x402.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "anchor-x402": {
      "url": "https://api.anchor-x402.com/mcp"
    }
  }
}

This one needs environment variables set before it will start: ANCHOR_WALLET_PRIVATE_KEY (EVM private key (0x-prefixed hex). The wallet pays for x402 calls in USDC on Base mainnet. Fund with USDC before use.). The author declared them in the registry entry; get the values from the project itself.

Available tools 18

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

decode

decode_calldata

Decode raw EVM calldata into function name + typed parameters via openchain.xyz + eth_abi. EVM-only. $0.001 USDC.

decode_tx

Structured decode of any mainnet transaction by hash. Supports Base, Ethereum, Solana. Mined txs cached. $0.001 USDC.

ledger

ledger_report

Signed + dual-chain-anchored x402 expense report (markdown + CSV, async job). $0.35 USDC.

ledger_summary

x402 spend accounting for any Base wallet — totals + per-service breakdown reconstructed from chain data. $0.01 USDC.

anchor

anchor_hash

Anchor a 32-byte hash to Base + Solana mainnet in parallel. Returns both tx URLs as cryptographic proof of when the hash existed. $0.005 USDC.

attest

attest_decision

Attest a decision over (input_hash, output_hash, decision): sign it yourself, or omit the signature and the treasury signs for you — then dual-chain anchor. Returns the signer, on-chain proof URLs, and a free re-verify URL. $0.010 USDC.

aura

aura_read

Read the aura of anything — color, tier (S/A/B/C/D/F), score 0-9999, description. $0.01 USDC.

grade

grade_target

Academic letter grade with red-pen marginalia for anything. $0.01 USDC.

intel

intel_wallet

Unified wallet intelligence bundle. ONE call: balances on Base + Ethereum + Solana, USDC, tx counts, ENS/SNS reverse, sanctions verdict. 8-10 parallel sources. $0.005 USDC.

investigate

investigate_wallet

Agent-driven wallet due diligence — multi-step investigation, signed markdown report + JSON sidecar, dual-chain anchored. Async — returns job_id; poll /v1/investigate/status/{job_id} for the deliverable. ETA 5-10 min. $1.77 USDC.

oracle

oracle_verdict

Yes/no oracle with dual-chain anchored verdict (Base + Solana). $0.05 USDC.

parse

parse_datetime

Parse freeform datetime strings into ISO 8601 + components + relative time + confidence. $0.001 USDC.

resolve

resolve_name

Cross-chain name resolution: ENS (.eth) and Bonfida SNS (.sol). Returns resolved address(es). 1h cache. $0.001 USDC.

roast

roast_target

Witty roast of any target — wallet, tweet, idea, code, anything. $0.05 USDC.

roll

roll_random

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

screen

screen_wallet

Wallet risk pre-flight for agent payments: OFAC SDN sanctions plus address-reputation (drainer, phishing, mixer, laundering) resolved to an allow/review/block recommendation with per-signal detail. $0.02 USDC.

tldr

tldr_text

Summarize a URL or pasted text into 3-5 concise bullets. $0.01 USDC.

token

token_price

USD spot price for any major token. By symbol or chain+contract. CoinGecko-backed, 60s cache. $0.001 USDC.

Endpoints

URL	Transport	State	Latency	Checked
https://api.anchor-x402.com/mcp	streamable-http	answering	464 ms	0 min ago

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Anchor X402 — questions

Answers built from our own checks of this server.

What can Anchor X402 do?

It exposes 18 tools, read directly from the server on our last check. Among them: anchor_hash, attest_decision, aura_read, decode_calldata, decode_tx, grade_target and 12 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 Anchor X402 mostly used for?

Its tools cluster around decode and ledger. 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 Anchor X402 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 451 ms. The bar chart above shows every period we have measured.

How do I connect Anchor X402?

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 Anchor X402 need an API key?

No. Anchor X402 completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 18 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Anchor X402?

It answers our handshake in 451 ms on average, which is faster than 33% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Anchor X402?

The npm package anchor-x402-mcp was installed 62 times in the last week. Week over week that is +0%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Anchor X402 open source?

Yes — it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.