DPYC Oracle

A free, unauthenticated MCP concierge service for the DPYC Social Contract. The Oracle answers questions about membership, governance, onboarding, and tax rates by reading the dpyc-community GitHub registry live. No credits, no Neon database, no Secure Courier, no payment or credentials required.

Available Tools

Stubbed (Future)

Related MCP server: Gitopia MCP Server

Citizenship Onboarding

New citizens can self-register via Schnorr signature verification:

1. request_citizenship(npub, display_name) — issues a cryptographic challenge

2. Sign the challenge with your Nostr nsec (offline, nsec never leaves your device)

3. confirm_citizenship(npub, challenge_id, signed_event_json) — verifies signature and auto-commits

On success, the Oracle creates an individual member file at members/citizens/{npub}.json in dpyc-community. The CI workflow auto-regenerates members.json from individual files.

Advocate Registration

Advocates are community utility services (e.g., OAuth2 collectors) that provide shared infrastructure but aren't monetized Operators. Registration is Oracle-mediated — no challenge-response needed:

register_advocate(
    npub="<service_npub>",
    display_name="My Service",
    service_name="my-service",
    service_url="https://my-service.fastmcp.app",
    service_description="What the service does",
)

The Oracle commits members/advocates/{npub}.json directly. Peer MCP servers discover the service URL via resolve_service_by_name() in the tollbooth-dpyc registry client.

How to Connect

This service is hosted on FastMCP Cloud. Add it to your MCP client configuration:

{
  "mcpServers": {
    "dpyc-oracle": {
      "url": "https://www.fastmcp.com/server/lonniev/dpyc-oracle"
    }
  }
}

Related Repos

The authoritative, always-current roster lives in the registry — call lookup_member() / network_versions() for live data. The stable source repos:

Core

• dpyc-community — Registry, governance, and membership data

• tollbooth-dpyc — Python SDK every Operator and Authority builds on

• tollbooth-sample — Reference Operator template for new services

• tollbooth-pricing-studio — iOS app Operators use to design pricing models

Authorities (certification chain)

• tollbooth-authority — Certification + fee ledger

• tollbooth-authority-northamerica — Regional certifier

• tollbooth-authority-newengland — Sub-regional certifier

Operators

• thebrain-mcp — Personal Brain knowledge graph

• excalibur-mcp — X/Twitter posting

• schwab-mcp — Charles Schwab brokerage data

• taxsort-mcp — Tax sorting + classification

• optionality-mcp — Options analytics

• cypher-mcp — Monetized graph answers (named Cypher over Neo4j/AuraDB)

Advocates (shared utilities, unmonetized)

• tollbooth-oauth2-collector — OAuth2 authorization-code collection

• tollbooth-shortlinks — Ephemeral short URLs for OAuth flows

License

Apache-2.0