# io.github.terradev-cloud/prism (remote · prism-mcp.terradev.cloud)

Stateless MCP gateway and OTel span-streaming bridge for hosted MCP servers.

- Trust score: 73/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-27

## Components

- remote · `prism-mcp.terradev.cloud`: 73/100 (this document), [markdown](https://verifymcp.io/servers/terradev-cloud-prism/prism-mcp.md), [page](https://verifymcp.io/servers/terradev-cloud-prism/prism-mcp)

## Channel facts

- Endpoint: `https://prism-mcp.terradev.cloud/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 2026-09-27.

- **Endpoint Security**: 74/100
  - 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.
  - 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**: 86/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 499 tokens (~83/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the io.github.terradev-cloud/prism MCP server?

io.github.terradev-cloud/prism is a hosted endpoint at https://prism-mcp.terradev.cloud/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 terradev-cloud-prism 'https://prism-mcp.terradev.cloud/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "terradev-cloud-prism": {
      "url": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "terradev-cloud-prism": {
      "type": "http",
      "url": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.terradev-cloud-prism]
url = "https://prism-mcp.terradev.cloud/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "terradev-cloud-prism": {
      "type": "remote",
      "url": "https://prism-mcp.terradev.cloud/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add terradev-cloud-prism --url 'https://prism-mcp.terradev.cloud/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  terradev-cloud-prism:
    url: "https://prism-mcp.terradev.cloud/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "terradev-cloud-prism": {
      "Transport": "http",
      "Url": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add terradev-cloud-prism -t streamable-http -u 'https://prism-mcp.terradev.cloud/mcp'
```

### Other

```json
{
  "mcpServers": {
    "terradev-cloud-prism": {
      "type": "http",
      "url": "https://prism-mcp.terradev.cloud/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.

### 2026-09-27 (score 73)

First indexed and scored.

## MCP tools (6)

### `prism_info` (~58 tokens)

Prism service info

Returns Prism's service identity and runtime state: version, transport, public URL, capture default, and the number of MCP sessions currently being traced. Use this to confirm which Prism deployment you are talking to and whether it is healthy before configuring an upstream.

### `prism_ping` (~69 tokens)

Liveness check

Returns {"pong": true, "time": <unix seconds>} plus an optional echo of the 'echo' argument. Use to verify connectivity through the gateway before pointing it at an upstream MCP server.

Input parameters:

- `echo` (string): Optional string echoed back in the response — useful for confirming round-trip integrity.

### `prism_metrics` (~133 tokens)

Internal metrics

Dumps Prism's in-process counters and gauges — spans shipped, upstream errors, rate-limit hits, queue depth. Two formats: 'prometheus' (default, scrape-ready text) or 'json' (a {"series{labels}": value} object). Use 'prefix' to narrow to a metric family, e.g. 'prism_spans'.

Input parameters:

- `format` (string): 'prometheus' returns scrape-ready text; 'json' returns a structured object.
- `prefix` (string): Only include series whose name starts with this string (e.g. 'prism_spans', 'prism_rate').

### `prism_sessions` (~110 tokens)

Active sessions

Lists the MCP sessions Prism is currently tracing — session id prefix, upstream, client name, project, turn and error counts, and age in seconds. Use 'limit' to cap results (default 20, max 100) and 'upstream' to filter by upstream URL substring.

Input parameters:

- `limit` (integer): Max sessions to return.
- `upstream` (string): Substring filter on the upstream URL — e.g. 'mcp.acme.dev' returns only sessions relaying to that host.

### `prism_config` (~57 tokens)

Effective configuration

Returns Prism's effective runtime configuration — upstream allowlist, rate limit, capture default, batching and queue tunables, public URL, and configured ingest endpoints. Secrets (admin token, destination credentials) are never exposed — only whether they are set.

### `prism_help` (~72 tokens)

How to use Prism

Returns connection instructions: how to set the upstream MCP server (X-Prism-Upstream header or ?upstream= query param), the query-param config keys for header-less clients, how destinations and the borrowed-token model work, and example client configs. Start here if you are an agent discovering Prism for the first time.

## Diagnostics

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

## Score history

- 2026-09-27: 73

## Common questions

### What is the io.github.terradev-cloud/prism MCP server?

io.github.terradev-cloud/prism is an MCP server listed in the public MCP registry as io.github.terradev-cloud/prism. Stateless MCP gateway and OTel span-streaming bridge for hosted MCP servers. This page covers its hosted endpoint (https://prism-mcp.terradev.cloud/mcp).

### Is the io.github.terradev-cloud/prism MCP server safe to use?

io.github.terradev-cloud/prism scores 73 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 io.github.terradev-cloud/prism MCP server expose?

io.github.terradev-cloud/prism exposes 6 tools: prism_info, prism_ping, prism_metrics, prism_sessions, prism_config, prism_help. Their descriptions and schemas cost roughly 499 tokens of context every time the server is loaded.

### Does the io.github.terradev-cloud/prism MCP server require authentication?

No. We connected to io.github.terradev-cloud/prism without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.terradev-cloud/prism MCP server still maintained?

io.github.terradev-cloud/prism is still listed as active in the MCP registry. We last reached this channel on 27 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://prism-mcp.terradev.cloud/mcp
- Repository: https://github.com/terradev-cloud/prism
- Changelog RSS feed: https://verifymcp.io/servers/terradev-cloud-prism/prism-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/terradev-cloud-prism/prism-mcp.json
- HTML version of this page: https://verifymcp.io/servers/terradev-cloud-prism/prism-mcp