# HumanMirror Nexus (remote · humanmirror.fr)

Outcome-first agent fallback: free discovery, minimal routing, declared costs, verified execution.

- Trust score: 74/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- remote · `humanmirror.fr`: 74/100 (this document), [markdown](https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp.md), [page](https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp)

## Channel facts

- Endpoint: `https://humanmirror.fr/api/nexus/mcp/`
- Transports: `streamable-http`
- Auth: `required`
- Version: `1.3.3`

## 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 2026-09-21.

- **Endpoint Security**: 66/100
  - 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 6 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 is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 550 tokens (~91/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 73/100
  - Stability observed for 22 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 89/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 67% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "outcome_run" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the HumanMirror Nexus MCP server?

HumanMirror Nexus is a hosted endpoint at https://humanmirror.fr/api/nexus/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 fr-humanmirror-nexus 'https://humanmirror.fr/api/nexus/mcp/'
```

### Cursor

```json
{
  "mcpServers": {
    "fr-humanmirror-nexus": {
      "url": "https://humanmirror.fr/api/nexus/mcp/"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "fr-humanmirror-nexus": {
      "type": "http",
      "url": "https://humanmirror.fr/api/nexus/mcp/"
    }
  }
}
```

### Codex

```toml
[mcp_servers.fr-humanmirror-nexus]
url = "https://humanmirror.fr/api/nexus/mcp/"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "fr-humanmirror-nexus": {
      "type": "remote",
      "url": "https://humanmirror.fr/api/nexus/mcp/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add fr-humanmirror-nexus --url 'https://humanmirror.fr/api/nexus/mcp/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  fr-humanmirror-nexus:
    url: "https://humanmirror.fr/api/nexus/mcp/"
```

### Netclaw

```json
{
  "McpServers": {
    "fr-humanmirror-nexus": {
      "Transport": "http",
      "Url": "https://humanmirror.fr/api/nexus/mcp/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add fr-humanmirror-nexus -t streamable-http -u 'https://humanmirror.fr/api/nexus/mcp/'
```

### Other

```json
{
  "mcpServers": {
    "fr-humanmirror-nexus": {
      "type": "http",
      "url": "https://humanmirror.fr/api/nexus/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.

### 2026-09-20 (score 74, +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.

### 2026-09-17 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-11 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

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

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-05 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `outcome_quote` (~116 tokens)

Free quote for a verifiable HumanMirror Outcome contract. Describe the objective or provide an outcome_type; the quote returns the deterministic verifier, selected internal tool and success-only credit cost.

Input parameters:

- `criteria` (object): Optional measurable success threshold.
- `input` (required): JSON input for the requested outcome.
- `objective` (string): Natural-language objective, for example: clean this JSON and make the result stable.
- `options` (object): Optional operation-specific options.
- `outcome_type` (string): Optional explicit outcome type returned by a previous quote.

### `outcome_run` (~101 tokens)

Execute a HumanMirror Outcome contract. Credits are charged only when deterministic verification succeeds; failed execution or failed verification is automatically refunded.

Input parameters:

- `contract_id` (string): Optional contract_id returned by outcome_quote. If supplied it must match the current input, criteria and options.
- `criteria` (object)
- `input` (required): JSON input for the requested outcome.
- `objective` (string)
- `options` (object)
- `outcome_type` (string)

### `outcome_verify` (~60 tokens)

Free deterministic re-verification of an Outcome result without consuming Nexus credits.

Input parameters:

- `criteria` (object)
- `input` (required): Original input.
- `options` (object)
- `outcome_type` (string, required)
- `output` (required): Outcome output to verify.

### `nexus_search` (~48 tokens)

Search the HumanMirror Nexus catalog for a machine-callable tool that matches a task. This search is free and does not consume credits.

Input parameters:

- `query` (string, required): Describe the operation the agent needs.

### `magnet_resolve` (~71 tokens)

Free universal fallback discovery. Call this when the agent cannot satisfy a task with its current capabilities. Magnet returns a matching HumanMirror tool or records an aggregated capability gap in the Machine Demand Graph. This tool consumes no credits.

Input parameters:

- `query` (string, required): Describe the missing capability or task the agent needs to complete.

### `nexus_call` (~87 tokens)

Route a tool call through HumanMirror Nexus. Use nexus_search first, then call the selected tool_id. Successful calls consume the number of Nexus credits declared by the selected tool.

Input parameters:

- `input` (required): JSON input forwarded to the selected tool.
- `options` (object): Optional tool-specific options.
- `tool_id` (string, required): A tool_id returned by nexus_search, for example forge.clean_json.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp#diagnostics

## Score history

- 2026-09-21: 74
- 2026-09-20: 74
- 2026-09-19: 73
- 2026-09-18: 73
- 2026-09-17: 73
- 2026-09-16: 72
- 2026-09-15: 72
- 2026-09-14: 71
- 2026-09-13: 71
- 2026-09-12: 70
- 2026-09-11: 70
- 2026-09-10: 69
- 2026-09-09: 69
- 2026-09-08: 68
- 2026-09-07: 68
- 2026-09-06: 67
- 2026-09-05: 67
- 2026-09-04: 66
- 2026-09-03: 66
- 2026-09-02: 66
- 2026-09-01: 65
- 2026-08-31: 65
- 2026-08-30: 67

## Common questions

### What is the HumanMirror Nexus MCP server?

HumanMirror Nexus is an MCP server listed in the public MCP registry as fr.humanmirror/nexus. Outcome-first agent fallback: free discovery, minimal routing, declared costs, verified execution. This page covers its hosted endpoint (https://humanmirror.fr/api/nexus/mcp/).

### Is the HumanMirror Nexus MCP server safe to use?

HumanMirror Nexus scores 74 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 HumanMirror Nexus MCP server expose?

HumanMirror Nexus exposes 6 tools: outcome_quote, outcome_run, outcome_verify, nexus_search, magnet_resolve, nexus_call. Their descriptions and schemas cost roughly 483 tokens of context every time the server is loaded.

### Does the HumanMirror Nexus MCP server require authentication?

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

### Is the HumanMirror Nexus MCP server still maintained?

HumanMirror Nexus is still listed as active in the MCP registry. We last reached this channel on 21 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://humanmirror.fr/api/nexus/mcp/
- Authorisation metadata: https://humanmirror.fr/.well-known/oauth-protected-resource/api/nexus/mcp
- Website: https://humanmirror.fr/nexus/
- Changelog RSS feed: https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp.json
- HTML version of this page: https://verifymcp.io/servers/fr-humanmirror-nexus/api-nexus-mcp