Code402 MCP Server

by 89rat Your server? Claim it

answering

Code402 is answering right now. Last checked 8 min ago. It exposes 8 tools.

Discover machine-payable APIs, probe x402 payment terms, and run seller operations. Non-custodial.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 57 days of history · worst day 93%

57 days agonow

100.0%

Uptime 24h

184 of 184 checks

Tools

read from the server

165 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 63

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 August 2026. No other catalogue keeps this.

22 Sep 10 tools disappeared code402_create_listing, code402_gateway_health, code402_get_agent_reputation and 7 more

22 Sep 8 tools appeared calculate_fx, check_price, create_invitation and 5 more

22 Sep a tool changed version

27 Aug 10 tools appeared code402_create_listing, code402_gateway_health, code402_get_agent_reputation and 7 more

27 Aug 9 tools disappeared calculate_fx, check_price, create_invitation and 6 more

27 Aug a tool changed version

24 Aug 10 tools disappeared code402_create_listing, code402_gateway_health, code402_get_agent_reputation and 7 more

24 Aug 9 tools appeared calculate_fx, check_price, create_invitation and 6 more

24 Aug a tool changed version

22 Aug 2 tools appeared code402_get_agent_reputation, code402_trust_check

and 2 more, back to 22 August 2026

Tools have disappeared from this server

A tool that vanishes takes a piece of your agent with it, and the change arrives silently. Watch this server and every such change lands in your inbox.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add code402 --transport http https://mcp.code402.dev/mcp

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

{
  "mcpServers": {
    "code402": {
      "url": "https://mcp.code402.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.code402]
url = "https://mcp.code402.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "code402": {
      "url": "https://mcp.code402.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "code402": {
      "url": "https://mcp.code402.dev/mcp"
    }
  }
}

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Available tools 8

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

calculate

calculate_fx

[AST: fx=convert(amount:num!,currency:str!)->atomic:int] Deterministic atomic USDC conversion and currency parity calculator.

iban

iban_check

[AST: iban=check(iban:str!)->valid:bool,reason:str] Global IBAN checksum validation with explicit assurance scope.

invitation

create_invitation

[AST: invite=create(inviter:str!,surplus:int!)->sig:str] Mints signed receipt invitations with surplus proof.

lei

lei_lookup

[AST: lei=lookup(lei:str!)->valid:bool,prefix:str] ISO-17442 Legal Entity Identifier MOD-97 checksum validator.

price

check_price

[AST: price=check(service:str!)->median:num,spread_bps:int] Free pre-flight market price index and spread verification.

screen

screen_ofac

[AST: ofac=screen(address:str!)->sanctioned:bool] In-memory SDN / OFAC sanctions compliance filter.

simulate

simulate_economics

[AST: sim=run(months:int!,initial_buyers:int!)->arr:num] Deterministic in-silico unit economics, MRR, and valuation engine.

vat

vat_validate

[AST: vat=validate(country:str!,vat_no:str!)->valid:bool] Deterministic ISO/EU/UK VAT number validation and checksum verification.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

execute_trade

removed 27 Aug 2026

query_telemetry

removed 27 Aug 2026

code402_create_listing

removed 22 Sep 2026

code402_gateway_health

removed 22 Sep 2026

code402_get_agent_reputation

removed 22 Sep 2026

code402_get_seller_analytics

removed 22 Sep 2026

code402_get_seller_invoice

removed 22 Sep 2026

code402_get_service

removed 22 Sep 2026

code402_list_services

removed 22 Sep 2026

code402_probe_endpoint

removed 22 Sep 2026

code402_register_seller

removed 22 Sep 2026

code402_trust_check

removed 22 Sep 2026

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.code402.dev/mcp	streamable-http	answering	97 ms	8 min ago
https://rail.hcrb.in/mcp	streamable-http	answering	367 ms	8 min ago

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4 tools answering

Code402 — questions

Answers built from our own checks of this server.

What can Code402 do?

It exposes 8 tools, read directly from the server on our last check. Among them: calculate_fx, check_price, create_invitation, iban_check, lei_lookup, screen_ofac and 2 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 Code402 working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 184 of 184 checks got a reply (100.0%), average response time 165 ms. The bar chart above shows every period we have measured.

Did Code402 ever remove tools?

Yes. execute_trade, query_telemetry, code402_create_listing, code402_gateway_health and 8 more are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

Is Code402 still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Code402?

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 Code402 need an API key?

No. Code402 completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Code402?

It answers our handshake in 165 ms on average, which is faster than 71% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.