Agent Trust Stack MCP vs Emilia Protocol | AllMCPs
Side-by-Side Model Context Protocol Comparison
Agent Trust Stack MCP vs Emilia Protocol
In-depth architectural comparison of the Agent Trust Stack MCP and Emilia Protocol MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Agent Trust Stack MCP
Security · Local stdio
Quality: 55/100 (Good) | Auth: No auth required
Emilia Protocol
Security · Local stdio
Quality: 71/100 (Great) | Auth: No auth required
Verdict Summary: Choose Agent Trust Stack MCP if you need specialized Security tools running via a local process. Choose Emilia Protocol if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Agent Trust Stack MCP when:
You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: COC_CHAIN_DIR, ARP_RATINGS_DIR.
Cryptographic provenance, bilateral blind reputation scoring, and tamper-evident logging for AI agent interactions. 7 interlocking trust protocols (CoC, ARP, ASA, AJP, ALP, AMP, CWEP) available in Python (pip) and TypeScript (npm). 663 tests. Bitcoin-anchored provenance chains, anti-Goodhart reputation scoring, machine-readable contracts, dispute resolution, lifecycle management, trust-weighted matchmaking, and context-window cost allocation. Also on Smithery and PyPI.
Human sign-off + trust receipts for AI agents: requires a named human's approval before an irreversible action (payment release, record change, deploy), then mints an offline-verifiable Ed25519 Trust Receipt. Also exposes trust profiles, receipt verification, disputes, and delegation. Apache-2.0; policy engine formally verified. Install: npx -y @emilia-protocol/mcp-server.
Tools & Capabilities Breakdown
Agent Trust Stack MCP Tools (11)
coc_init
Initialize a new cryptographic hash chain (genesis block)
Agent Trust Stack MCP is categorized under Security and uses a local stdio subprocess. In contrast, Emilia Protocol belongs to Security using local stdio subprocess. Select Agent Trust Stack MCP when you need capabilities focused on security and Emilia Protocol when you require tools for security.
Get info about all 7 protocols with whitepaper links
verify_agent_identity
Verify an agent's identity via Agent Card URL
get_trust_evidence
Get combined trust evidence (CoC + ARP) for an agent
Emilia Protocol Tools (3)
ep_guard_action
Request authorization before an irreversible action: payments, wire transfers, fund releases, deletions, record or account changes, or sending messages with real-world effect. Submits the exact action for policy evaluation and human authorization. This MCP tool does not itself sit at the executor choke point: even after approval, the executor MUST match the returned action_hash and atomically consume the receipt before effect. If BLOCKED, poll ep_check_signoff with the receipt_id.
ep_check_signoff
Poll a pending authorization after ep_guard_action returns BLOCKED. Pass the receipt_id. Returns PENDING, APPROVED_PENDING_CONSUME, CONSUMED, or DENIED. Approval alone is not permission to execute: the executor must match action_hash and atomically consume the receipt at its own choke point.
ep_verify_receipt
Ask the configured EMILIA service to verify a stored trust receipt and report its hash and anchor status. Read-only, but not an offline verifier: the result is the service response for the supplied receipt_id.