# AgentStack (agentstack.tech) (remote · agentstack.tech)

Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).

- Trust score: 86/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `agentstack.tech`: 86/100 (this document), [markdown](https://verifymcp.io/servers/agentstacktech-agentstack/agentstack.md), [page](https://verifymcp.io/servers/agentstacktech-agentstack/agentstack)

## Channel facts

- Endpoint: `https://agentstack.tech/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-11-04.

- **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**: 74/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 592 tokens (~118/item across 5 items; 1 tools + 4 resources), lean.
  - 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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **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 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the AgentStack (agentstack.tech) MCP server?

AgentStack (agentstack.tech) is a hosted endpoint at https://agentstack.tech/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 agentstacktech-agentstack 'https://agentstack.tech/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "agentstacktech-agentstack": {
      "url": "https://agentstack.tech/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "agentstacktech-agentstack": {
      "type": "http",
      "url": "https://agentstack.tech/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.agentstacktech-agentstack]
url = "https://agentstack.tech/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "agentstacktech-agentstack": {
      "type": "remote",
      "url": "https://agentstack.tech/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add agentstacktech-agentstack --url 'https://agentstack.tech/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  agentstacktech-agentstack:
    url: "https://agentstack.tech/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "agentstacktech-agentstack": {
      "Transport": "http",
      "Url": "https://agentstack.tech/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add agentstacktech-agentstack -t streamable-http -u 'https://agentstack.tech/mcp'
```

### Other

```json
{
  "mcpServers": {
    "agentstacktech-agentstack": {
      "type": "http",
      "url": "https://agentstack.tech/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.

### 2026-11-03 (score 86, +1)

- [security improvement] Authorization: unverified → partial
- [security improvement] Injection markers: unverified → pass
- [security improvement] HSTS header: fail → pass
- [security improvement] Transport: fail → pass
- [functional improvement] Endpoint reachability: unreachable → reachable
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Schema quality: unverified → 100
- [functional improvement] Stability: unverified → 0.90
- [functional improvement] MCP protocol: unverified → pass

### 2026-11-02 (score 85, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] Stability: 0.83 → unverified
- [security regression] Authorization: partial → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] Transport: pass → fail
- [security regression] HSTS header: pass → fail
- [functional regression] Schema quality: 100 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified

### 2026-11-01 (score 85, 0)

- [functional] New prompt “agentstack_bot_message_bus”

### 2026-10-31 (score 85, +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.

### 2026-10-29 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 82, +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.

### 2026-10-24 (score 81, 0)

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

## MCP tools (1)

### `agentstack.execute` (~185 tokens)

AgentStack execute

AgentStack MCP = Work Graph control plane. After session + context.project_id: agents.work_next (mcp_work_loop_v1) -> plan_claim -> plan_execute (CAS/leases). Follow packet.next_action; catalog/discovery.search only if no packet. One-shot CRM/upload may call domain actions directly. Spine: agents.plan_get -> agents.work_next -> agents.plan_claim -> agents.plan_execute. Auth: Connect (G-A174) or Device Code, then auth.get_profile (bootstrap: include_settings false, include_subscriptions false; recipe mcp_session_setup), then context.project_id on every batch. Prompts: agentstack_session_setup, agentstack_execute_budget.

Input parameters:

- `context` (object): session.v1; project_id required.
- `options` (object): batch.v1 controls.
- `steps` (array, required): Steps; one heavy LLM per sync execute.

Output parameters:

- `agent_os` (object): Follow next_step.
- `error_code` (string): Stable failure code.
- `execution_mode` (string): async when queued.
- `job_id` (string): Poll id.
- `ok` (boolean): False on total failure.
- `partial_success` (boolean): Some steps failed.
- `recovery` (object): Next action when blocked.
- `trace_id` (string): Support trace.

## Diagnostics

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

## Score history

- 2026-11-04: 86
- 2026-11-03: 86
- 2026-11-02: 85
- 2026-11-01: 85
- 2026-10-31: 85
- 2026-10-30: 84
- 2026-10-29: 84
- 2026-10-28: 83
- 2026-10-27: 83
- 2026-10-26: 82
- 2026-10-25: 82
- 2026-10-24: 81
- 2026-10-23: 81
- 2026-10-22: 80
- 2026-10-21: 80
- 2026-10-20: 79
- 2026-10-19: 79
- 2026-10-18: 78
- 2026-10-17: 78
- 2026-10-16: 73
- 2026-10-15: 73
- 2026-10-14: 69
- 2026-10-13: 68
- 2026-10-12: 68
- 2026-10-10: 67
- 2026-10-07: 65

## Common questions

### What is the AgentStack (agentstack.tech) MCP server?

AgentStack (agentstack.tech) is an MCP server listed in the public MCP registry as io.github.agentstacktech/agentstack. Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments). This page covers its hosted endpoint (https://agentstack.tech/mcp).

### Is the AgentStack (agentstack.tech) MCP server safe to use?

AgentStack (agentstack.tech) scores 86 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 AgentStack (agentstack.tech) MCP server expose?

AgentStack (agentstack.tech) exposes 1 tool: agentstack.execute. Their descriptions and schemas cost roughly 185 tokens of context every time the server is loaded.

### Does the AgentStack (agentstack.tech) MCP server require authentication?

No. We connected to AgentStack (agentstack.tech) without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the AgentStack (agentstack.tech) MCP server still maintained?

AgentStack (agentstack.tech) is still listed as active in the MCP registry. We last reached this channel on 4 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://agentstack.tech/mcp
- Repository: https://github.com/agentstacktech/AgentStack
- Website: https://agentstack.tech/
- Changelog RSS feed: https://verifymcp.io/servers/agentstacktech-agentstack/agentstack.xml
- Changelog JSON feed: https://verifymcp.io/servers/agentstacktech-agentstack/agentstack.json
- HTML version of this page: https://verifymcp.io/servers/agentstacktech-agentstack/agentstack