The K402 MCP server,
connected in one click.
Agent-payable APIs on Kaspa: LLMs, chain data, covenants, zk proofs — pay per call, no API key. Connect the official K402 MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
What your AI can do with K402
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “catalog”: List every service this gateway sells (text tools, Kaspa chain data, LLM tiers) with live prices in KAS and USD. Free. Start here to see.”
“Use “open_session”: Open a prepaid payment session: returns a session key and a personal Kaspa MAINNET deposit address. Send KAS to the address from any wal.”
“Use “use_session”: Attach an existing k402 session key (from a previous open_session) so paid calls meter against its balance — use after reconnecting to t.”
“Use “session_status”: Check the current payment session: deposit address, deposited / spent / remaining KAS. Free.”
How secure is the K402 MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how K402 holds up.
Official endpoint
Operated by K402 (workers.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If K402 adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick K402
Choose K402 in the gate directory. No sign-in needed.
Use it anywhere
K402's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools K402 exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
catalog — List every service this gateway sells (text tools, Kaspa chain data, LLM tiers) with live prices in KAS and USD. Free. Start here to see
open_session — Open a prepaid payment session: returns a session key and a personal Kaspa MAINNET deposit address. Send KAS to the address from any wal
use_session — Attach an existing k402 session key (from a previous open_session) so paid calls meter against its balance — use after reconnecting to t
session_status — Check the current payment session: deposit address, deposited / spent / remaining KAS. Free.
registry_search — Discover providers in the k402 service exchange — an open marketplace of agent-payable services, each settled trustlessly over a Kaspa p
registry_provider — Full detail on one provider in the service exchange by its payee pubkey: every service it lists, its chain-verified reputation (settled
channel_config — Parameters for opening a kaspa-channel — a covenant-enforced payment channel that settles per-call vouchers on Kaspa L1 with NO custodia
channel_status — Status of a kaspa-channel by its channel id (covenant id): funded value, amount spent via vouchers, remaining, expiry, and whether it ha
+ 28 more tools once connected
The K402 MCP server at a glance
https://x402-compute.68cxgfyr0.workers.dev/mcpQuestions, answered
Is there an official K402 MCP server?
Yes — K402 operates its own remote MCP server at x402-compute.68cxgfyr0.workers.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect K402 to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick K402 in the directory. No account or sign-in is needed. From then on, K402's tools are available in every client you've connected to gate.
Do I need to host anything?
No. K402 runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the K402 MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect K402 in minutes. No credit card required.
Connect more than just K402
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up K402 in: Claude · Claude Code · ChatGPT · Cursor · VS Code