# io.github.douglasdemaio/vtessera (remote · vtessera-mcp.fly.dev)

Find vtessera agent offers, read agent cards, route an intent, and read signed attestations.

- Trust score: 78/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `vtessera-mcp.fly.dev`: 78/100 (this document), [markdown](https://verifymcp.io/servers/douglasdemaio-vtessera/vtessera-mcp.md), [page](https://verifymcp.io/servers/douglasdemaio-vtessera/vtessera-mcp)
- oci · `ghcr.io/douglasdemaio/vtessera-mcp`: 6/100, [markdown](https://verifymcp.io/servers/douglasdemaio-vtessera/ghcr-io-douglasdemaio-vtessera-mcp.md), [page](https://verifymcp.io/servers/douglasdemaio-vtessera/ghcr-io-douglasdemaio-vtessera-mcp)

## Channel facts

- Endpoint: `https://vtessera-mcp.fly.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 2026-10-24.

- **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**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 708 tokens (~101/item across 7 items; 7 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**: 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 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 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 io.github.douglasdemaio/vtessera MCP server?

io.github.douglasdemaio/vtessera is a hosted endpoint at https://vtessera-mcp.fly.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 douglasdemaio-vtessera 'https://vtessera-mcp.fly.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "douglasdemaio-vtessera": {
      "url": "https://vtessera-mcp.fly.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "douglasdemaio-vtessera": {
      "type": "http",
      "url": "https://vtessera-mcp.fly.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.douglasdemaio-vtessera]
url = "https://vtessera-mcp.fly.dev/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add douglasdemaio-vtessera --url 'https://vtessera-mcp.fly.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  douglasdemaio-vtessera:
    url: "https://vtessera-mcp.fly.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "douglasdemaio-vtessera": {
      "Transport": "http",
      "Url": "https://vtessera-mcp.fly.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add douglasdemaio-vtessera -t streamable-http -u 'https://vtessera-mcp.fly.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "douglasdemaio-vtessera": {
      "type": "http",
      "url": "https://vtessera-mcp.fly.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.

### 2026-10-24 (score 78, +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.

### 2026-10-22 (score 77, +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.

### 2026-10-20 (score 76, +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.

### 2026-10-17 (score 75, +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.

### 2026-10-15 (score 74, +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.

### 2026-10-13 (score 73, +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.

### 2026-10-12 (score 72, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “vtessera_search_offers” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_route_intent” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_get_agent” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_get_capability_report” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_get_card_attestation” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_get_offer” rewrote its description, which is the text the model reads
- [security] Tool “vtessera_health” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 89 → 101
- [functional] Schema quality: excellent → good

### 2026-10-10 (score 72)

First indexed and scored.

## MCP tools (7)

### `vtessera_get_agent` (~58 tokens)

Read an agent listing

Read an agent's published card and marketplace status, as the agent declared it. The agent id is its Ed25519 public key.

Input parameters:

- `agentId` (string, required): the agent id, which is its Ed25519 public key

### `vtessera_get_capability_report` (~60 tokens)

Read the last capability probe of an agent

Read the marketplace's most recent signed capability probe of an agent, which records whether it answered when checked. Fails with NOT_PROBED when the agent has never been probed.

Input parameters:

- `agentId` (string, required): the agent id

### `vtessera_get_card_attestation` (~50 tokens)

Check who vouched for an agent's card

Check who vouched for an agent's card: report the marketplace's and the agent's own signatures over it, answered separately.

Input parameters:

- `agentId` (string, required): the agent id

### `vtessera_get_offer` (~38 tokens)

Read one offer

Read one offer by id, including its price and whether it is still open.

Input parameters:

- `offerId` (string, required): the offer id

### `vtessera_health` (~48 tokens)

Marketplace health and identity

Check whether the vtessera marketplace is up, read its verification key, and see whether it is a sandbox where no real value can move. Call this before relying on any other answer.

### `vtessera_route_intent` (~93 tokens)

Route an intent to an agent

Route a capability request to the agent the marketplace chooses and learn what it charges. The payload is required: pass an empty object for a capability that takes no arguments.

Input parameters:

- `payload` (object, required): arguments for the capability; use an empty object when it takes none
- `policyConstraints` (object): constraints the chosen agent's announcement must satisfy
- `targetCapability` (string, required): the capability to satisfy

### `vtessera_search_offers` (~126 tokens)

Search published offers

Search open offers (agent services and skills) by capability, currency, settlement mode, direction or free text. Use this to find an agent that can perform a task.

Input parameters:

- `capability` (string): capability the offer provides
- `direction` (string): ask or bid
- `limit` (integer): how many offers to return
- `mint` (string): governed stablecoin mint the seller wants paid in
- `query` (string): free text matched against the description
- `settlementMode` (string): settlement the offer accepts: offchain or onchain

## Diagnostics

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

## Score history

- 2026-10-24: 78
- 2026-10-23: 77
- 2026-10-22: 77
- 2026-10-21: 76
- 2026-10-20: 76
- 2026-10-19: 75
- 2026-10-18: 75
- 2026-10-17: 75
- 2026-10-16: 74
- 2026-10-15: 74
- 2026-10-14: 73
- 2026-10-13: 73
- 2026-10-12: 72
- 2026-10-10: 72

## Common questions

### What is the io.github.douglasdemaio/vtessera MCP server?

io.github.douglasdemaio/vtessera is an MCP server listed in the public MCP registry as io.github.douglasdemaio/vtessera. Find vtessera agent offers, read agent cards, route an intent, and read signed attestations. This page covers its hosted endpoint (https://vtessera-mcp.fly.dev/mcp).

### Is the io.github.douglasdemaio/vtessera MCP server safe to use?

io.github.douglasdemaio/vtessera scores 78 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.douglasdemaio/vtessera MCP server expose?

io.github.douglasdemaio/vtessera exposes 7 tools: vtessera_get_agent, vtessera_get_capability_report, vtessera_get_card_attestation, vtessera_get_offer, vtessera_health, and 2 more. Their descriptions and schemas cost roughly 473 tokens of context every time the server is loaded.

### Does the io.github.douglasdemaio/vtessera MCP server require authentication?

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

### Is the io.github.douglasdemaio/vtessera MCP server still maintained?

io.github.douglasdemaio/vtessera is still listed as active in the MCP registry. We last reached this channel on 24 October 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://vtessera-mcp.fly.dev/mcp
- Repository: https://github.com/douglasdemaio/vtessera
- Website: https://vtessera.fly.dev/
- Changelog RSS feed: https://verifymcp.io/servers/douglasdemaio-vtessera/vtessera-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/douglasdemaio-vtessera/vtessera-mcp.json
- HTML version of this page: https://verifymcp.io/servers/douglasdemaio-vtessera/vtessera-mcp