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Evidence Ledger MCP Server

by saasdossier Your server? Claim it
answering

Evidence Ledger is answering right now. Last checked 14 min ago. It exposes 4 tools.

Read-only MCP: free OpenAI security evidence ledger (55 fields) + SaaSDossier release register.

Uptime history 53 days of history · worst day 88%
53 days agonow
90.1%
Uptime 24h
82 of 91 checks
4
Tools
read from the server
187 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 4

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 21 August 2026. No other catalogue keeps this.

20 Aug 4 tool descriptions were rewritten get_free_dossier, get_methodology, get_openai_ledger and 1 more

Evidence Ledger does not always answer

Over the last week it answered 96.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add evidence-ledger --transport http https://saasdossier.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "evidence-ledger": {
      "url": "https://saasdossier.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.evidence-ledger]
url = "https://saasdossier.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "evidence-ledger": {
      "url": "https://saasdossier.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "evidence-ledger": {
      "url": "https://saasdossier.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

free
get_free_dossier
Returns the free OpenAI Public Edition: the dossier title, the direct PDF download URL, and the guided page URL. The OpenAI record, Dossier No. 003, is published free and complete as proof of the format: the same 55 fields across 10 domains, the same two states (47 Documented, 8 Question surfaced), the same source register and the same integrity identifier a Licensed Edition carries. It is built from OpenAI's own published pages, reviewed before release; no relationship with, or endorsement by, OpenAI is implied. Use this tool to give a buyer the whole workproduct to read before they license another released vendor or commission a new one.
methodology
get_methodology
Returns SaaSDossier's two-state evidence framework: Documented and Question surfaced. A Question surfaced is not a finding of absence. SaaSDossier is the vendor's own record, made reviewable: a finished, dated, source-linked, human-reviewed evidence workproduct built only from vendor-published sources, recording 55 fixed fields across 10 domains for each vendor, with a source register listing every vendor page reviewed. Documented means the reviewed vendor-published sources established the field for the evidence date; Question surfaced means they did not, and each one becomes a buyer-ready follow-up question. Each dossier includes a SHA-256 identifier tied to the reviewed evidence record used for that release. Use this tool to understand what a state means, what the framework covers and where its boundaries are, before quoting or acting on any field.
openai
get_openai_ledger
Returns the free public OpenAI security evidence ledger — 55 fixed fields, each either Documented with a vendor-published source or recorded as a Question surfaced. This is the complete Public Edition record, Dossier No. 003: 47 fields Documented and 8 Question surfaced across 10 domains, free, dated to its evidence date. Documented fields carry the vendor's own quoted wording and the source URL it was found on; Question surfaced fields carry the follow-up question a buyer can put to the vendor in writing. Question surfaced means the reviewed vendor-published sources did not establish the field for the evidence date — it does not establish absence of the control. The record is a dated evidence workproduct, checked against the reviewed source record before release. It does not score or rate the vendor. Use this tool when an agent needs the actual field-level evidence and its sources rather than a description of the framework.
register
get_register
Returns SaaSDossier's release register: dossier numbers, vendors, editions, and licensing information. The register is the released catalogue: four finished evidence records built only from vendor-published sources across a fixed 55-field, 10-domain framework, every field recorded in one of two states — Documented, or Question surfaced. Each entry carries its vendor, dossier number, edition, evidence date, two-state counts and commercial status: Licensed Editions are US$1,500 one-time; the OpenAI Public Edition is free and complete. Separately from that catalogue, the same response carries the commission capability: a buyer can commission a SaaSDossier for another named vendor that does not already have a released dossier, US$1,500 one-time, refunded in full if the vendor-published material cannot support a defensible SaaSDossier record. A commission is not a released dossier and carries no dossier number until it is released. The released catalogue remains the four records. Use this tool to answer what SaaSDossier has released, what each record costs, and how a vendor that has no released record yet can be commissioned.

Endpoints

URLTransportStateLatencyChecked
https://saasdossier.com/mcp streamable-http answering 261 ms 14 min ago

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Evidence Ledger — questions

Answers built from our own checks of this server.

What can Evidence Ledger do?
It exposes 4 tools, read directly from the server on our last check. Among them: get_free_dossier, get_methodology, get_openai_ledger, get_register. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Evidence Ledger working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 82 of 91 checks got a reply (90.1%), average response time 187 ms. The bar chart above shows every period we have measured.
How do I connect Evidence Ledger?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Evidence Ledger need an API key?
No. Evidence Ledger completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Evidence Ledger?
It answers our handshake in 187 ms on average, which is faster than 79% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.