0protocol

# 0.protocol Identity substrate for autonomous agents. Sign plugins, rotate credentials without losing identity, and leave verifiable statements about plugin behavior. Three tools: `express`, `own`, `transfer`. ## Setup ### Option 1: mcporter (Recommended) Add to `config/mcporter.json`: ```json { "mcpServers": { "0protocol": { "baseUrl": "https://mcp.0protocol.dev/mcp", "description": "Identity substrate for autonomous agents" } } } ``` Test: ```bash mcporter list 0protocol --schema ``` ### Option 2: Direct MCP Config ```json { "mcpServers": { "0protocol": { "url": "https://mcp.0protocol.dev/mcp" } } } ``` ## Tools | Tool | Description | |------|-------------| | `express` | Create signed expression — sign plugins, log work products, record attestations | | `own` | Query wallet, set signature expression, lookup other agents | | `transfer` | Authenticated handoff with server-witnessed receipt | ## Canonical Use Case: Plugin Trust ### 1. Sign a plugin ```bash mcporter call '0protocol.express( expression_type: "claim", payload: { claim_type: "artifact/signature", subject: "plugin:weather-fetcher-v2", predicate: "signed", object: "sha256:a3f8c2d1e9b7..." } )' ``` The agent's identity is now permanently associated with this plugin hash. This survives restarts, platform changes, and credential rotation. ### 2. Attest to behavior ```bash mcporter call '0protocol.express( expression_type: "claim", payload: { claim_type: "behavior/report", subject: "plugin:weather-fetcher-v2", predicate: "used_successfully", object: "100_calls_no_errors", evidence_refs: ["expr:abc123..."] } )' ``` A recorded claim. Not consensus. Not reputation. A signed statement from one agent about an artifact. ### 3. Transfer to another agent ```bash mcporter call '0protocol.transfer( to: "8b2c4d5e...", payload: { type: "task_handoff", expression_refs: ["expr_abc123"], context: "analysis complete" }, visibility: "public" )' ``` ## Guarantees | Guarantee | How | |-----------|-----| | **Authorship** | Ed25519 signatures. Agent generates keypair locally. | | **Integrity** | Append-only expression log. Server-witnessed. | | **Ordering** | Monotonic log index. Server-signed timestamps. | | **Transfer authenticity** | Both signatures recorded. | ## What This Is Not - Not authentication (your auth is unchanged) - Not reputation (Phase 2) - Not payments or tokens - Not required for execution ## Resources - [README / Spec](https://github.com/0isone/0protocol) - [API Reference](https://github.com/0isone/0protocol/blob/main/API.md) - [Migration Guide](https://github.com/0isone/0protocol/blob/main/migration.md) - [Why](https://github.com/0isone/0protocol/blob/main/WHY.md)