Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base. Connect the official KHOTEM — Cryptographic Witness 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
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http khotem-cryptographic-witness https://khotem.com/mcpRun in your terminal, then restart Claude Code.
KHOTEM — Cryptographic Witness · https://khotem.com/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “khotem_status”: FREE. KHOTEM service status: version, mode, liveness.”
“Use “khotem_ping”: FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before y.”
“Use “khotem_catalog”: FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base).”
“Use “khotem_guide”: FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash).”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how KHOTEM — Cryptographic Witness holds up.
Operated by KHOTEM — Cryptographic Witness (khotem.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If KHOTEM — Cryptographic Witness adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose KHOTEM — Cryptographic Witness in the gate directory. No sign-in needed.
KHOTEM — Cryptographic Witness'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
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
khotem_status — FREE. KHOTEM service status: version, mode, liveness.
khotem_ping — FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before y
khotem_catalog — FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base).
khotem_guide — FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash).
khotem_receipt_verify — FREE. Verify a KHOTEM Ed25519 receipt: signature, payload hash, ledger anchor, issuer key.
khotem_seal — PAID $0.05. Witnessed cryptographic seal: sha256 + timestamp + ledger record. Provide content (hashed and forgotten) or hash. Pay first, the
khotem_attest — PAID $0.02. Certificate of existence: exact-match a ledger record by ref (txHash | sha256 | 16-hex stamp). Pay first, then pass payment_tx.
khotem_receipt — PAID $0.01. Portable Ed25519-signed proof-of-delivery receipt for any ledger ref. Verify free via khotem_receipt_verify. Pay first, then pas
https://khotem.com/mcpYes — KHOTEM — Cryptographic Witness operates its own remote MCP server at khotem.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick KHOTEM — Cryptographic Witness in the directory. No account or sign-in is needed. From then on, KHOTEM — Cryptographic Witness's tools are available in every client you've connected to gate.
No. KHOTEM — Cryptographic Witness runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
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.
Yes — you can get started with gate for free and connect KHOTEM — Cryptographic Witness in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up KHOTEM — Cryptographic Witness in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
Get started free