# Kortex (remote · kortex.rohnelt.dev)

Which x402 service actually works: uptime, valid 402, and settlements proven on-chain.

- Trust score: 80/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- remote · `kortex.rohnelt.dev`: 80/100 (this document), [markdown](https://verifymcp.io/servers/dev-rohnelt-kortex-kortex/kortex.md), [page](https://verifymcp.io/servers/dev-rohnelt-kortex-kortex/kortex)

## Channel facts

- Endpoint: `https://kortex.rohnelt.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## 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 2026-09-22.

- **Endpoint Security**: 63/100
  - 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 10 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 is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 75/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1325 tokens (~132/item across 10 items; 10 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 93/100
  - Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 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 Kortex MCP server?

Kortex is a hosted endpoint at https://kortex.rohnelt.dev/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 dev-rohnelt-kortex-kortex 'https://kortex.rohnelt.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-rohnelt-kortex-kortex": {
      "url": "https://kortex.rohnelt.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-rohnelt-kortex-kortex": {
      "type": "http",
      "url": "https://kortex.rohnelt.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-rohnelt-kortex-kortex]
url = "https://kortex.rohnelt.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-rohnelt-kortex-kortex": {
      "type": "remote",
      "url": "https://kortex.rohnelt.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-rohnelt-kortex-kortex --url 'https://kortex.rohnelt.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-rohnelt-kortex-kortex:
    url: "https://kortex.rohnelt.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-rohnelt-kortex-kortex": {
      "Transport": "http",
      "Url": "https://kortex.rohnelt.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-rohnelt-kortex-kortex -t streamable-http -u 'https://kortex.rohnelt.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-rohnelt-kortex-kortex": {
      "type": "http",
      "url": "https://kortex.rohnelt.dev/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.

### 2026-09-22 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 77, +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.

### 2026-09-13 (score 76, +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.

### 2026-09-11 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-09 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (10)

### `capabilities` (~66 tokens)

Describe Kortex

Return the full machine-readable manifest of Kortex: every operation, its price in USD, its input schema and how to pay. Free.

When to use: Call this first if you have never used Kortex and want to know what it can do and what it costs.

Price: Free.

### `identity_create` (~142 tokens)

Claim an identity

Turn a wallet address into a permanent Kortex identity and an API token. Free, and grants a small trial credit.

When to use: Call this once, before anything else. You need the returned token for every other call. No account, no email, no human.

Price: Free.

Input parameters:

- `label` (string): A name for your own reference.
- `message` (string, required): Must contain your wallet address and a timestamp within the last 10 minutes.
- `signature` (string, required): EIP-191 personal_sign of the message field, proving you control the wallet.
- `wallet` (string, required): Your EVM wallet address. This is your permanent identity.

### `whoami` (~45 tokens)

Who am I

Your handle, wallet, balance and usage. Free.

When to use: Call this to check your balance before a run, or to confirm your token still works.

Price: Free.

### `credit_deposit` (~91 tokens)

Top up balance

Buy Kortex credit with USDC on Base over x402. One on-chain settlement, then every call is debited off-chain.

When to use: Call when your balance is low. Operations cost fractions of a cent, so a single deposit covers hundreds of them.

Price: Free.

Input parameters:

- `amount_usd` (string): One of 1, 5 or 20. Defaults to 1.

### `resolve` (~222 tokens)

Find a service that actually works

Describe what you need in plain language and get back x402 services ranked by evidence: how much of the time they have been up, whether they answer with a valid 402, and how many distinct wallets have actually paid them on-chain. One entry per operator, not per URL.

When to use: Call this before paying a service you have not used, and instead of taking the first result from a directory. Of the services listed as x402 today, measured across 1,015 of them, only 25% actually answer with a payment requirement — the rest are up but sell nothing.

Price: US$0.005000 per call.

Input parameters:

- `limit` (integer): How many candidates to return.
- `max_price_usd` (string): Skip anything that quotes more than this per call.
- `need` (string, required): What you want done, in plain language. Example: scrape a web page and return clean text.
- `require_paid` (boolean): Only return services with at least one on-chain settlement. Turn off to see untested ones too.

### `check` (~152 tokens)

Is this one safe to pay

Everything Kortex knows about a single resource URL: whether it is up, whether its 402 is well formed, what it quotes, and whether its payout address has ever been paid on-chain. Returns a verdict, not just data.

When to use: Call this when you already have a URL and want to know whether sending money to it is a good idea. Worth it above roughly US$0.05 a call; below that the check costs more than the risk.

Price: US$0.002000 per call.

Input parameters:

- `probe_now` (boolean): Hit the endpoint live instead of using the most recent scheduled probe.
- `resource` (string, required): The exact URL you are about to pay, including the path.

### `compare` (~76 tokens)

Rank several candidates

Score two or more resource URLs side by side on the same evidence, and say which one to pay.

When to use: Call this when you already have a shortlist and need to pick. Cheaper than calling check once per URL.

Price: US$0.003000 per call.

Input parameters:

- `resources` (array, required): The URLs to rank.

### `history` (~115 tokens)

Show me the record

The full time series behind a score: every probe outcome, every price and payout-address change, and the on-chain settlement history of the address it pays to.

When to use: Call this when a verdict surprises you, or before committing to a service you plan to depend on. This is the evidence itself rather than the summary.

Price: US$0.002000 per call.

Input parameters:

- `days` (integer): How far back to look.
- `resource` (string, required): The exact URL you are about to pay, including the path.

### `watch` (~124 tokens)

Tell me if it changes

Register interest in a service. Kortex records a watch and reports what has changed — price, payout address, or availability — the next time you ask.

When to use: Call this for a service you depend on. A payout address that moves is the strongest warning signal there is, and you will not notice it by yourself.

Price: US$0.005000 per call.

Input parameters:

- `callback_url` (string): Optional. If set, Kortex POSTs here when something changes.
- `resource` (string, required): The exact URL you are about to pay, including the path.

### `report` (~163 tokens)

Report what happened

Tell Kortex that you paid a service and what you got. Free, and only counted once the payment is found on-chain — so a report costs at least the price of the call it describes.

When to use: Call this after any paid call that went wrong, and after ones that went right. It is free, it makes every later verdict better, and the evidence it adds is the kind no probe can produce.

Price: Free.

Input parameters:

- `detail` (string): What happened, in your own words.
- `outcome` (string, required): What actually happened after you paid.
- `resource` (string, required): The exact URL you are about to pay, including the path.
- `tx_hash` (string): The settlement transaction, if you have it. Speeds up verification.

## Diagnostics

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

## Score history

- 2026-09-22: 80
- 2026-09-21: 79
- 2026-09-20: 79
- 2026-09-19: 78
- 2026-09-18: 78
- 2026-09-17: 77
- 2026-09-16: 77
- 2026-09-15: 77
- 2026-09-14: 76
- 2026-09-13: 76
- 2026-09-12: 75
- 2026-09-11: 75
- 2026-09-10: 74
- 2026-09-09: 74
- 2026-09-08: 73
- 2026-09-07: 73
- 2026-09-06: 72
- 2026-09-05: 72
- 2026-09-04: 71
- 2026-09-03: 71
- 2026-09-02: 70
- 2026-09-01: 70
- 2026-08-31: 70
- 2026-08-30: 69
- 2026-08-29: 69
- 2026-08-28: 68
- 2026-08-27: 68
- 2026-08-26: 67
- 2026-08-25: 65

## Common questions

### What is the Kortex MCP server?

Kortex is an MCP server listed in the public MCP registry as dev.rohnelt.kortex/kortex. Which x402 service actually works: uptime, valid 402, and settlements proven on-chain. This page covers its hosted endpoint (https://kortex.rohnelt.dev/mcp).

### Is the Kortex MCP server safe to use?

Kortex scores 80 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 Kortex MCP server expose?

Kortex exposes 10 tools: capabilities, identity_create, whoami, credit_deposit, resolve, and 5 more. Their descriptions and schemas cost roughly 1,196 tokens of context every time the server is loaded.

### Does the Kortex MCP server require authentication?

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

### Is the Kortex MCP server still maintained?

Kortex is still listed as active in the MCP registry. We last reached this channel on 22 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://kortex.rohnelt.dev/mcp
- Website: https://kortex.rohnelt.dev/
- Changelog RSS feed: https://verifymcp.io/servers/dev-rohnelt-kortex-kortex/kortex.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-rohnelt-kortex-kortex/kortex.json
- HTML version of this page: https://verifymcp.io/servers/dev-rohnelt-kortex-kortex/kortex