07 / Consult

Consult Sibyl over MCP

Sibyl is reachable as a live Model Context Protocol server. Ask it a real question and it returns a dossier for a human to weigh — never an instruction. The protocol is the doorway; the ethics are in the structure behind it.

Checking the endpoint…

Many bounded mirror-facets forming one figure. — One doorway, many bounded voices behind it.

What it is

A protocol doorway to a deliberating system, not a chatbot.

MCP (the Model Context Protocol) is the open standard by which tools and agents expose capabilities to each other. Sibyl speaks it so any MCP client — or the public form on this site — can pose a question and receive a structured, auditable answer. But Sibyl is not a single model returning an opinion. Behind the endpoint sits a deterministic pipeline whose whole purpose is to refuse to hand you a verdict when a human should hold it.

Sense→ Three councils→ Arbitration→ Pendulum check→ AGORA audit→ Human gate (e1)

The structure

What happens behind the endpoint.

I
Sense
A deterministic world-model sketch reads the question into entities and stress-pathways — public statistics only, never personal data.
II
Three councils, twenty-one seats
Growth, Juristic and Rational councils each read the same question through a different lens. Confirmation comes from lenses that agree without coordinating; independence keeps any one bias from carrying.
III
Arbitration that never averages
Disagreement is measured and preserved, not smoothed. The least-force option that no seat red-flags wins — and if the seats cannot reconcile, the answer is escalation, not a manufactured middle.
IV
Pendulum rebalancing
Where a question feeds on conflict or excess importance, Sibyl names it and offers an optional, clearly-labelled reflective counter-weight — awareness, not instruction.
V
AGORA audit & the human gate
Every consult is scored against 25 ethical principles and written into a tamper-evident, hash-linked chain. Any fail — and every contested value question — raises the e1 human gate. A person holds the last word.

The tools

Nine tools on the endpoint.

An MCP client sees a small, read-only surface. Everything returns a dossier or a verifiable record — nothing acts on the world.

consulta question → a full dossier
simulatea labelled projection, never a prediction to act on
council_deliberatethe three councils on a case
pendulum_scandetect pendulum dynamics
agora_evaluatescore actions against AGORA
audit_getfetch an audit record
audit_verifyverify the hash chain
case_listthe public case corpus
case_getread one case

The purpose

Why expose Sibyl this way.

Because the honest form of an oracle is one you can audit, challenge, and switch off. Every dossier is hash-linked and contestable. Every consult can be verified. A circuit breaker can halt the whole service in one move. And the human gate is enforced at the doorway itself — the protocol cannot be used to make Sibyl decide for anyone. It informs a human decision; it never replaces one.

Connect

Add Sibyl to your assistant.

Sibyl speaks the Model Context Protocol, so it drops into any MCP-capable client. Copy the endpoint, add it as a connector, and ask your assistant to consult Sibyl. Access tokens are issued to the early-access circle — request one here.

https://mcp.sibylsystem.eu/mcp

1
Copy the Sibyl URL
Use the copy button above — you'll paste it in the next step.
2
Settings → Connectors
Add a custom connector, name it Sibyl, and paste the URL.
3
Connect and sign in
Click Add → Connect. The Sibyl authorization page opens — paste your access token and click Authorize. Then ask Claude to consult Sibyl.

// ~/.gemini/settings.json
{
  "mcpServers": {
    "sibyl": {
      "httpUrl": "https://mcp.sibylsystem.eu/mcp",
      "headers": { "Authorization": "Bearer <your access token>" }
    }
  }
}

claude mcp add --transport http sibyl \
  https://mcp.sibylsystem.eu/mcp \
  --header "Authorization: Bearer <your access token>"

No token yet? Public questions go through the consult form — same pipeline, same audit, a human reviews every dossier. GET /health is open and needs no token.

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