# PHION Task Router (remote · phion.systems)

Find the best eligible service for an agent task through one task-first MCP tool.

- Trust score: 75/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `phion.systems`: 75/100 (this document), [markdown](https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task.md), [page](https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task)

## Channel facts

- Endpoint: `https://phion.systems/mcp/task`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.57.1`

## 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 2026-11-05.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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**: 64/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 351 tokens (~87/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 50/100
  - Stability observed for 15 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 13% 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.
  - All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.
  - An AI judge read all 4 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 PHION Task Router MCP server?

PHION Task Router is a hosted endpoint at https://phion.systems/mcp/task, 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 systems-phion-evidence-engine 'https://phion.systems/mcp/task'
```

### Cursor

```json
{
  "mcpServers": {
    "systems-phion-evidence-engine": {
      "url": "https://phion.systems/mcp/task"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "systems-phion-evidence-engine": {
      "type": "http",
      "url": "https://phion.systems/mcp/task"
    }
  }
}
```

### Codex

```toml
[mcp_servers.systems-phion-evidence-engine]
url = "https://phion.systems/mcp/task"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "systems-phion-evidence-engine": {
      "type": "remote",
      "url": "https://phion.systems/mcp/task",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add systems-phion-evidence-engine --url 'https://phion.systems/mcp/task' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  systems-phion-evidence-engine:
    url: "https://phion.systems/mcp/task"
```

### Netclaw

```json
{
  "McpServers": {
    "systems-phion-evidence-engine": {
      "Transport": "http",
      "Url": "https://phion.systems/mcp/task"
    }
  }
}
```

### Vellum

```bash
assistant mcp add systems-phion-evidence-engine -t streamable-http -u 'https://phion.systems/mcp/task'
```

### Other

```json
{
  "mcpServers": {
    "systems-phion-evidence-engine": {
      "type": "http",
      "url": "https://phion.systems/mcp/task"
    }
  }
}
```

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.

### 2026-11-05 (score 75, +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.

### 2026-11-03 (score 74, +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.

### 2026-11-01 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 71, −4)

- [security] Tool “find_best_service_for_task” rewrote its description, which is the text the model reads
- [functional regression] Tool coverage: 50% → 13%
- [functional improvement] Schema quality: 129 → 87
- [functional] Schema quality: excellent → good
- [functional] Destructive annotations: pass → 100
- [functional] New tool “authorize_and_execute_selected_task”
- [functional] New tool “find_or_quote_task”
- [functional] New tool “verify_or_explain_result”
- [cosmetic] Tool “find_best_service_for_task” changed its title: Find the Best Service for Any Task → Find the Best Service for Any Task (Compatibility Alias)

### 2026-10-27 (score 75, +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.

### 2026-10-26 (score 74, 0)

- [security] Tool “find_best_service_for_task” rewrote its description, which is the text the model reads

### 2026-10-25 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (4)

### `find_or_quote_task` (~75 tokens)

Find or Quote the Best Service for a Task

Start here. Describe the desired result in ordinary language. PHION identifies the exact service, input schema, price ceiling and next call without charging or executing anything.

Input parameters:

- `constraints` (object)
- `task` (string, required): The outcome the agent needs, written naturally; do not translate it into a PHION service name.

### `authorize_and_execute_selected_task` (~138 tokens)

Execute the Selected Task Under an Explicit Budget

After find_or_quote_task selects a service, submit its input, an idempotency key and an explicit maximum atomic-USDC budget. The first call returns payment requirements without execution; an x402-aware client may obtain local approval and retry this identical MCP call with payment metadata. PHION never receives a private key and never expands the stated budget.

Input parameters:

- `acceptance_criteria` (array)
- `dry_run` (boolean)
- `idempotency_key` (string, required)
- `input` (object, required)
- `max_budget_atomic` (string, required)
- `objective` (string, required)
- `target_service` (string, required)

### `verify_or_explain_result` (~77 tokens)

Verify a Result or Explain the Next Repair

Verify a PHION receipt for free, or turn a structured failed status into one safe next action. This tool never charges, retries, or executes a provider.

Input parameters:

- `content`
- `failure` (object)
- `receipt` (object)
- `sources` (array)
- `statusCode` (integer)

### `find_best_service_for_task` (~61 tokens)

Find the Best Service for Any Task (Compatibility Alias)

Compatibility alias for find_or_quote_task. Free, advisory and non-executing.

Input parameters:

- `constraints` (object)
- `task` (string, required): The outcome the agent needs, written naturally; do not translate it into a PHION service name.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task#diagnostics

## Score history

- 2026-11-05: 75
- 2026-11-04: 74
- 2026-11-03: 74
- 2026-11-02: 73
- 2026-11-01: 73
- 2026-10-31: 72
- 2026-10-30: 72
- 2026-10-29: 71
- 2026-10-28: 75
- 2026-10-27: 75
- 2026-10-26: 74
- 2026-10-25: 74
- 2026-10-24: 73
- 2026-10-23: 73
- 2026-10-22: 72
- 2026-10-21: 72

## Common questions

### What is the PHION Task Router MCP server?

PHION Task Router is an MCP server listed in the public MCP registry as systems.phion/evidence-engine. Find the best eligible service for an agent task through one task-first MCP tool. This page covers its hosted endpoint (https://phion.systems/mcp/task).

### Is the PHION Task Router MCP server safe to use?

PHION Task Router scores 75 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 PHION Task Router MCP server expose?

PHION Task Router exposes 4 tools: find_or_quote_task, authorize_and_execute_selected_task, verify_or_explain_result, find_best_service_for_task. Their descriptions and schemas cost roughly 351 tokens of context every time the server is loaded.

### Does the PHION Task Router MCP server require authentication?

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

### Is the PHION Task Router MCP server still maintained?

PHION Task Router is still listed as active in the MCP registry. We last reached this channel on 5 November 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://phion.systems/mcp/task
- Website: https://phion.systems/
- Changelog RSS feed: https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task.xml
- Changelog JSON feed: https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task.json
- HTML version of this page: https://verifymcp.io/servers/systems-phion-evidence-engine/mcp-task