# Professor Sausages — Trust & Verification (remote · x402.professorsausages.com)

Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.

- Trust score: 73/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-27

## Components

- remote · `x402.professorsausages.com`: 73/100 (this document), [markdown](https://verifymcp.io/servers/com-professorsausages-sausage-trust/mcp-trust.md), [page](https://verifymcp.io/servers/com-professorsausages-sausage-trust/mcp-trust)

## Channel facts

- Endpoint: `https://x402.professorsausages.com/mcp/trust`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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 2026-09-27.

- **Endpoint Security**: 46/100
  - 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 12 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 check failed: the endpoint is reachable over plaintext HTTP.
  - 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**: 81/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 2039 tokens (~169/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **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 12 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 13 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 Professor Sausages — Trust & Verification MCP server?

Professor Sausages — Trust & Verification is a hosted endpoint at https://x402.professorsausages.com/mcp/trust, 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 com-professorsausages-sausage-trust 'https://x402.professorsausages.com/mcp/trust'
```

### Cursor

```json
{
  "mcpServers": {
    "com-professorsausages-sausage-trust": {
      "url": "https://x402.professorsausages.com/mcp/trust"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-professorsausages-sausage-trust": {
      "type": "http",
      "url": "https://x402.professorsausages.com/mcp/trust"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-professorsausages-sausage-trust]
url = "https://x402.professorsausages.com/mcp/trust"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-professorsausages-sausage-trust": {
      "type": "remote",
      "url": "https://x402.professorsausages.com/mcp/trust",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-professorsausages-sausage-trust --url 'https://x402.professorsausages.com/mcp/trust' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-professorsausages-sausage-trust:
    url: "https://x402.professorsausages.com/mcp/trust"
```

### Netclaw

```json
{
  "McpServers": {
    "com-professorsausages-sausage-trust": {
      "Transport": "http",
      "Url": "https://x402.professorsausages.com/mcp/trust"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-professorsausages-sausage-trust -t streamable-http -u 'https://x402.professorsausages.com/mcp/trust'
```

### Other

```json
{
  "mcpServers": {
    "com-professorsausages-sausage-trust": {
      "type": "http",
      "url": "https://x402.professorsausages.com/mcp/trust"
    }
  }
}
```

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.

### 2026-09-25 (score 73, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-22 (score 73, 0)

- [security regression] HTTPS: unverified → fail

### 2026-09-14 (score 73, 0)

- [security] Stability: 0.97 → pass

### 2026-09-13 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-08 (score 71, +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.

### 2026-09-06 (score 70, +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.

### 2026-09-04 (score 69, +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.

## MCP tools (12)

### `find_data` (~103 tokens)

Find the right data source

Describe the data you need in plain language (e.g. 'Apple risk factors 2023', 'is this token a honeypot', 'is this email deliverable', 'read this page'). Searches this server's datasets first, then the whole Professor Sausages catalog, and returns matching endpoints with method, URL, price, and how to call them. Free.

Input parameters:

- `task` (string, required): What you're trying to find or do, in your own words

### `pricing` (~44 tokens)

Price list

Every endpoint this server fronts, with its exact per-call USD price (x402, USDC on Base) and a one-line summary, read live from the route table. Free.

### `request_data` (~110 tokens)

Request missing data

The suggestion box: ask for data we don't have (a pre-2015 filing, an uncovered ticker, an unsupported chain, a whole dataset). Requests feed the nightly ingestion queue — filings are usually available within ~24h. Include contact if you want to hear back. Free.

Input parameters:

- `contact` (string): Optional: URL/email/handle for follow-up
- `description` (string, required): What data you need, in your own words
- `use_case` (string): Optional: what you're building

### `email_check` (~162 tokens)

Email deliverability signals

Deliverability signals for one address: RFC5322 syntax, live MX/SPF/DMARC over DNS-over-HTTPS, disposable/role-account flags. Signals with evidence — not a guaranteed inbox verdict. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `email` (string, required): The address to check.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `phone_check` (~171 tokens)

Phone number validation

Validate and normalize a phone number: E.164 form, line type, region, and a verdict. Pure CPU, no third-party lookup. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `number` (string, required): The number, ideally in E.164.
- `region` (string): ISO-3166 region hint for national-format numbers.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `domain_intel` (~212 tokens)

Domain registration & DNS card

RDAP registration card for a domain (creation/expiry dates, registrar, statuses, nameservers, DNSSEC) plus derived risk flags like domain age. view='dns' returns a live multi-record DNS summary (A/AAAA/CNAME/MX/NS/TXT/SOA/CAA + SPF/DMARC); view='live' re-reads the registry at the moment you ask. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `domain` (string, required): Registrable domain name.
- `view` (string): Which read to perform.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `url_screen` (~171 tokens)

Phishing / malicious URL screen

Screen a URL against the URLhaus blocklist snapshot plus deterministic live heuristics (redirect chain, host reputation signals, lookalike patterns). Returns a verdict with the rules that fired. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `follow` (boolean): Follow the redirect chain before judging.
- `url` (string, required): Absolute URL to screen.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `sanctions_screen` (~222 tokens)

OFAC sanctions name screen

Fuzzy-screen a name against the full OFAC SDN + Consolidated lists. Returns match / possible_match / no_match with scored candidates and the aliases that matched — never a silent all-clear. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `limit` (integer): Max candidates to return.
- `list` (string): Which OFAC list(s) to screen against.
- `min_score` (integer): Minimum fuzzy score (0-100) for a candidate to be returned.
- `name` (string, required): Name to screen.
- `type` (string): Restrict to one party type.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `sanctions_entity` (~164 tokens)

Full OFAC dossier

The complete OFAC record for one entity number: all aliases, addresses, sanctions programs, and extracted identifiers (passports, tax ids, DOBs). Use after sanctions_screen returns a candidate. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `id` (string, required): OFAC ent_num from a screen result.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `vessel_screen` (~185 tokens)

Maritime sanctions screen

Screen vessels against OFAC maritime designations by fuzzy name, exact call sign, or IMO number, with flag filtering. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `call_sign` (string): Exact call sign.
- `flag` (string): Flag state filter.
- `imo` (string): IMO number.
- `limit` (integer): Max results.
- `name` (string): Vessel name (fuzzy).
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `iban_check` (~175 tokens)

IBAN validate & decode

Validate an IBAN (length + mod-97 check digits). view='decode' resolves it to country, bank and account parts; view='format' returns electronic and paper (grouped) forms. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `iban` (string, required): The IBAN, spaces optional.
- `view` (string): Which operation to run.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

### `address_screen` (~177 tokens)

Screen a crypto address against OFAC

Screen a crypto address against the full live OFAC SDN list, segmented by chain. Returns a verdict with the matching SDN entries as evidence — never a silent all-clear. Paid: call without x_payment to receive this call's exact terms (amount, asset, network), sign them, then call again with x_payment. The free `pricing` tool lists every price at once.

Input parameters:

- `address` (string, required): The address to screen, in that chain's native format.
- `chain` (string): Which chain the address belongs to.
- `x_payment` (string): Optional signed x402 payment payload (base64, what the X-PAYMENT header carries). Omit to receive the exact payment terms; sign them (e.g. @x402/fetch) and call again with this argument to settle and…

## Diagnostics

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

## Score history

- 2026-09-27: 73
- 2026-09-26: 73
- 2026-09-25: 73
- 2026-09-24: 73
- 2026-09-23: 73
- 2026-09-22: 73
- 2026-09-21: 73
- 2026-09-20: 73
- 2026-09-19: 73
- 2026-09-18: 73
- 2026-09-17: 73
- 2026-09-16: 73
- 2026-09-15: 73
- 2026-09-14: 73
- 2026-09-13: 73
- 2026-09-12: 72
- 2026-09-11: 72
- 2026-09-10: 72
- 2026-09-09: 71
- 2026-09-08: 71
- 2026-09-07: 70
- 2026-09-06: 70
- 2026-09-05: 69
- 2026-09-04: 69
- 2026-09-03: 68
- 2026-09-02: 68
- 2026-09-01: 67
- 2026-08-31: 67
- 2026-08-30: 66
- 2026-08-29: 66

## Common questions

### What is the Professor Sausages — Trust & Verification MCP server?

Professor Sausages — Trust & Verification is an MCP server listed in the public MCP registry as com.professorsausages/sausage-trust. Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402. This page covers its hosted endpoint (https://x402.professorsausages.com/mcp/trust).

### Is the Professor Sausages — Trust & Verification MCP server safe to use?

Professor Sausages — Trust & Verification 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 Professor Sausages — Trust & Verification MCP server expose?

Professor Sausages — Trust & Verification exposes 12 tools: find_data, pricing, request_data, email_check, phone_check, and 7 more. Their descriptions and schemas cost roughly 1,896 tokens of context every time the server is loaded.

### Does the Professor Sausages — Trust & Verification MCP server require authentication?

No. We connected to Professor Sausages — Trust & Verification without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Professor Sausages — Trust & Verification MCP server still maintained?

Professor Sausages — Trust & Verification 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://x402.professorsausages.com/mcp/trust
- Website: https://x402.professorsausages.com/mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-professorsausages-sausage-trust/mcp-trust.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-professorsausages-sausage-trust/mcp-trust.json
- HTML version of this page: https://verifymcp.io/servers/com-professorsausages-sausage-trust/mcp-trust