0.protocol

Author: @0isone

Downloads: 127

Description: Sign plugins, rotate agent credentials without losing identity, and publicly attest to plugin behavior with verifiable claims and authenticated transfers.

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:

{ "mcpServers": { "0protocol": { "baseUrl": "https://mcp.0protocol.dev/mcp", "description": "Identity substrate for autonomous agents" } } }

Test:

mcporter list 0protocol --schema

Option 2: Direct MCP Config { "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

Sign a plugin 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.

Attest to behavior 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.

Transfer to another agent 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 API Reference Migration Guide Why