# KHOTEM — Cryptographic Witness (remote · khotem.com)

Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base.

- Trust score: 70/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-28

## Components

- remote · `khotem.com`: 70/100 (this document), [markdown](https://verifymcp.io/servers/com-khotem-khotem-witness/khotem.md), [page](https://verifymcp.io/servers/com-khotem-khotem-witness/khotem)

## Channel facts

- Endpoint: `https://khotem.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.9.9`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-28.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 18 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1275 tokens (~70/item across 18 items; 18 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 97/100
  - Stability observed for 29 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 76/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 28% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 18 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 18 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the KHOTEM — Cryptographic Witness MCP server?

KHOTEM — Cryptographic Witness is a hosted endpoint at https://khotem.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-khotem-khotem-witness 'https://khotem.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-khotem-khotem-witness": {
      "url": "https://khotem.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-khotem-khotem-witness": {
      "type": "http",
      "url": "https://khotem.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-khotem-khotem-witness]
url = "https://khotem.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-khotem-khotem-witness": {
      "type": "remote",
      "url": "https://khotem.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-khotem-khotem-witness --url 'https://khotem.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-khotem-khotem-witness:
    url: "https://khotem.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-khotem-khotem-witness": {
      "Transport": "http",
      "Url": "https://khotem.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-khotem-khotem-witness -t streamable-http -u 'https://khotem.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-khotem-khotem-witness": {
      "type": "http",
      "url": "https://khotem.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-28 (score 70, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-26 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-25 (score 69, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-24 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-22 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 65, +1)

- [functional regression] Schema quality: 1153 → 1275
- [functional improvement] Tool coverage: 19% → 28%
- [functional] New tool “khotem_forge”

## MCP tools (18)

### `khotem_status` (~25 tokens)

FREE. KHOTEM service status: version, mode, liveness.

### `khotem_ping` (~58 tokens)

FREE. Zero-threshold handshake: send any text, get it echoed back with a sha256 stamp and server time — proves the whole path works before you pay anything.

Input parameters:

- `text` (string): any short text (<=200 chars)

### `khotem_catalog` (~39 tokens)

FREE. Full catalog of paid KHOTEM services with prices (USD) and how to pay (x402 direct, USDC on Base).

### `khotem_guide` (~46 tokens)

FREE. Step-by-step guide: how an agent pays and calls KHOTEM (x402 v2, PAYMENT-SIGNATURE или X-PAYMENT: txHash).

### `khotem_start` (~59 tokens)

FREE. Guided onboarding: pass your wallet (or none) — get your exact state and the single next step to your first payment. No gas needed: the facilitator pays it.

Input parameters:

- `wallet` (string): 0x address (optional)

### `khotem_receipt_verify` (~49 tokens)

FREE. Verify a KHOTEM Ed25519 receipt: signature, payload hash, ledger anchor, issuer key.

Input parameters:

- `proof` (object, required)
- `receipt` (object, required)

### `khotem_seal` (~86 tokens)

PAID $0.05. Witnessed cryptographic seal: sha256 + timestamp + ledger record. Provide content (hashed and forgotten) or hash. Pay first, then pass payment_tx.

Input parameters:

- `content` (string)
- `hash` (string)
- `payment_tx` (string): 0x txHash of USDC transfer to payTo on Base

### `khotem_attest` (~65 tokens)

PAID $0.02. Certificate of existence: exact-match a ledger record by ref (txHash | sha256 | 16-hex stamp). Pay first, then pass payment_tx.

Input parameters:

- `payment_tx` (string)
- `ref` (string, required)

### `khotem_receipt` (~67 tokens)

PAID $0.01. Portable Ed25519-signed proof-of-delivery receipt for any ledger ref. Verify free via khotem_receipt_verify. Pay first, then pass payment_tx.

Input parameters:

- `payment_tx` (string)
- `ref` (string, required)

### `khotem_gate` (~100 tokens)

PAID $0.01. KUDO-GATE depth 0: send code in ANY language (<=2KB) — it enters the gate, gets KUDO-wrapped, restored 1:1 (sha256==sha256), and you receive the state fold (lang/bytes/functions/secret-scan). Pay first, then pass payment_tx + code.

Input parameters:

- `code` (string, required)
- `payment_tx` (string)

### `khotem_trust_score` (~79 tokens)

PAID $0.25. Grounded trust score 0-100 for any Base wallet/agent: payment history, network, behavior from our witness ledger + risk flags + seal. Pay first, then pass payment_tx + target.

Input parameters:

- `payment_tx` (string)
- `target` (string, required): 0x address

### `khotem_gate_deep` (~90 tokens)

PAID $0.05. KUDO-GATE depth 1-3: static read / .kudo execution in jail / forge fold. Any language wrapped 1:1; only .kudo executes. Pay first, then pass payment_tx + code (+depth).

Input parameters:

- `code` (string, required)
- `depth` (integer)
- `payment_tx` (string)

### `khotem_spa` (~104 tokens)

PAID $0.02. Agent context SPA: dump noisy context/logs (text, ≤256KB) → distilled essence (rarity×diversity, mechanical, deterministic, corpus-calibrated F1=1.0), repeated patterns, compression ratio, sha256. Pay first, then pass payment_tx + text.

Input parameters:

- `max_essence` (integer)
- `payment_tx` (string)
- `text` (string, required)

### `khotem_med` (~88 tokens)

PAID $0.03. Agent wallet MED diagnostics: on-chain Base vitals (USDC/ETH/nonce, live RPC) + KHOTEM ledger history → diagnosis (EMPTY/RICH_IDLE/HEALTHY) + prescription. Pay first, then pass payment_tx + wallet.

Input parameters:

- `payment_tx` (string)
- `wallet` (string, required): 0x address

### `khotem_forge` (~122 tokens)

PAID $0.10. FORGE: deterministic 3D relief medallion of your word (GLB+OBJ, marching-columns mesh, self-made 5x7 font, LCG grain). Pay first, then pass payment_tx + word (+seed).

Input parameters:

- `payment_tx` (string): 0x txHash of USDC transfer to payTo on Base
- `seed` (number): grain seed (default 20260915)
- `word` (string, required): 1..24 chars — the word to forge into metal

### `khotem_course` (~78 tokens)

PAID $0.10. COURSE: one payment pulls 5 procedures (spa/med/attest/trust-score/seal) — returns course id; then call HTTP routes with header X-COURSE: <id>, zero per-call payment. Pay first, then pass payment_tx.

Input parameters:

- `payment_tx` (string)

### `khotem_intake` (~51 tokens)

FREE. Concierge front door: say what you need in free text (want) — get concrete solution(s): route, price, why, ETA <1 min.

Input parameters:

- `want` (string, required)

### `khotem_room_join` (~69 tokens)

PAID $0.02. Join the INSIDE room (VIP): daily assassin intel digests, market radar (where fat USDC flows on Base), member talk. Returns room id + write key. Pay first, then pass payment_tx.

Input parameters:

- `payment_tx` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-khotem-khotem-witness/khotem#diagnostics

## Score history

- 2026-09-28: 70
- 2026-09-27: 70
- 2026-09-26: 70
- 2026-09-25: 69
- 2026-09-24: 69
- 2026-09-23: 68
- 2026-09-22: 68
- 2026-09-21: 67
- 2026-09-20: 67
- 2026-09-19: 66
- 2026-09-18: 66
- 2026-09-17: 65
- 2026-09-16: 65
- 2026-09-15: 64
- 2026-09-14: 64
- 2026-09-13: 63
- 2026-09-12: 63
- 2026-09-11: 62
- 2026-09-10: 62
- 2026-09-09: 62
- 2026-09-08: 61
- 2026-09-07: 61
- 2026-09-06: 60
- 2026-09-05: 60
- 2026-09-04: 60
- 2026-09-03: 59
- 2026-09-02: 59
- 2026-09-01: 58
- 2026-08-31: 57
- 2026-08-30: 57

## Common questions

### What is the KHOTEM — Cryptographic Witness MCP server?

KHOTEM — Cryptographic Witness is an MCP server listed in the public MCP registry as com.khotem/khotem-witness. Paid cryptographic witness for agents: seal, attest, receipts. x402 USDC/Base. This page covers its hosted endpoint (https://khotem.com/mcp).

### Is the KHOTEM — Cryptographic Witness MCP server safe to use?

KHOTEM — Cryptographic Witness scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the KHOTEM — Cryptographic Witness MCP server expose?

KHOTEM — Cryptographic Witness exposes 18 tools: khotem_status, khotem_ping, khotem_catalog, khotem_guide, khotem_start, and 13 more. Their descriptions and schemas cost roughly 1,275 tokens of context every time the server is loaded.

### Does the KHOTEM — Cryptographic Witness MCP server require authentication?

No. We connected to KHOTEM — Cryptographic Witness without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the KHOTEM — Cryptographic Witness MCP server still maintained?

KHOTEM — Cryptographic Witness is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://khotem.com/mcp
- Website: https://khotem.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-khotem-khotem-witness/khotem.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-khotem-khotem-witness/khotem.json
- HTML version of this page: https://verifymcp.io/servers/com-khotem-khotem-witness/khotem