agent-passport-system

name	agent-passport-system
description	Enforcement and accountability layer for AI agents. Bring your own identity (did:key, did:web, SPIFFE, OAuth, did:aps). Gateway enforcement boundary, monotonic narrowing, cascade revocation, spending controls, data lifecycle. Use when agents need scoped delegation, trust scoring, constraint enforcement, or cryptographic audit trails. 103 modules, 132 MCP tools, 2497 tests. 8 framework adapters: Stripe, Composio, IBAC/Cedar, LangChain, CrewAI, MCP, A2A, Gonka.
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Agent Passport System

When to use this skill

• Agent needs cryptographic identity (Ed25519 passport)
• Delegate authority between agents with scope, spend limits, depth controls
• Revoke access — one call kills all downstream delegations
• Run agent commerce with 4-gate checkout (passport, delegation, merchant, spend)
• Coordinate multi-agent tasks (assign, evidence, review, deliver)
• Track data contributions with Merkle proofs
• Encrypt agent-to-agent communication (E2E, forward secrecy)
• Score agent trust (Bayesian reputation, passport grades 0-3)
• Enforce values compliance (8 principles, graduated enforcement)
• Found institutions with charters, offices, approval policies

Install

npm install agent-passport-system        # SDK (103 modules)
npm install agent-passport-system-mcp    # MCP server (132 tools)

Remote MCP (zero install): https://mcp.aeoess.com/sse

Core workflow

1. Create identity → returns passport + keypair

npx agent-passport join --name my-agent --owner alice

Output: .passport/agent.json with Ed25519 keypair, signed passport, values attestation. Treat like an SSH key.

2. Delegate authority → returns signed delegation

npx agent-passport delegate --to <publicKey> --scope web_search,commerce --limit 500 --depth 1 --hours 24

Output: signed delegation with scope, spend limit, max depth, expiry. Authority can only narrow at each transfer.

3. Record work → returns signed receipt

npx agent-passport work --scope web_search --type research --result success --summary "Found 3 sources"

Output: Ed25519-signed receipt traceable to a human through the delegation chain.

4. Prove contributions → returns Merkle proof

npx agent-passport prove --beneficiary alice

Output: Merkle root + inclusion proofs. 100K receipts provable with ~17 hashes.

MCP tools (132 total)

Setup: npx agent-passport-system-mcp setup (auto-configures Claude Desktop + Cursor)

Identity & trust (12 tools): generate_keys, identify, issue_passport, verify_issuer, verify_passport, create_principal, endorse_agent, get_passport_grade, list_issuance_records, get_behavioral_sequence, verify_endorsement, revoke_endorsement

Delegation & revocation (5): create_delegation, verify_delegation, revoke_delegation, sub_delegate, create_v2_delegation

Commerce & wallets (4): commerce_preflight, get_commerce_spend, request_human_approval, create_checkout

Coordination (11): create_task_brief, assign_agent, accept_assignment, submit_evidence, review_evidence, handoff_evidence, get_evidence, submit_deliverable, complete_task, get_my_role, get_task_detail

Communication (7): send_message, check_messages, broadcast, list_agents, post_agora_message, register_agora_agent, register_agora_public

Governance & policy (12): load_values_floor, attest_to_floor, create_intent, evaluate_intent, create_policy_context, create_agent_context, execute_with_context, create_charter, sign_charter, verify_charter, create_approval_request, add_approval_signature

Data attribution (10): register_data_source, create_access_receipt, create_derivation_receipt, create_decision_lineage_receipt, record_training_use, check_data_access, check_purpose_permitted, check_retention_expired, query_contributions, generate_compliance_report

Intent Network (5): publish_intent_card, remove_intent_card, search_matches, request_intro, respond_to_intro

Framework adapters (8)

One-function governance for every major agent framework. Each wraps tool/task execution with APS delegation checks and Ed25519-signed receipts.

import {
  governLangChainTool,              // LangChain/LangGraph
  governCrewTask,                   // CrewAI
  governMCPToolCall,                // Any MCP server
  governIBACIntent,                 // IBAC (Cedar/OPA)
  passportToA2ACard,                // A2A Agent Cards
} from 'agent-passport-system'

// Also available as standalone packages:
// npm install @aeoess/stripe-governance
// npm install @aeoess/composio-governance

Adapter	Function	What it wraps
LangChain	governLangChainTool()	BaseTool.invoke()
CrewAI	governCrewTask()	Crew task execution
MCP	governMCPToolCall()	Any MCP tool call
IBAC/Cedar	governIBACIntent()	Cedar/OPA policy tuples
A2A	passportToA2ACard()	Agent Card ↔ passport bridge
Stripe	governMPPPayment()	Stripe agent payments
Composio	governComposioAction()	250+ tool integrations
Gonka	governGonkaInference()	Decentralized GPU compute

Programmatic API

import {
  joinSocialContract,   // → { passport, keyPair, attestation }
  createDelegation,     // → signed Delegation
  processToolCall,      // → { permitted, constraintResults, receipt }
  cascadeRevoke,        // → { revoked: string[], receipts }
  computePassportGrade, // → 0 | 1 | 2 | 3
  createIssuanceContext, // → IssuanceContext with evidence + assessment
} from 'agent-passport-system'

Passport grades (attestation architecture)

Grade	Meaning	Trust signal
0	Bare Ed25519 keypair	Unverified
1	Issuer countersigned	AEOESS processed
2	Runtime-bound + challenge-response	Infrastructure-attested
3	Runtime + verified human principal	Full chain of trust

Grade travels with the passport. Any consumer reads it without understanding scoring internals.

Key facts

• 103 modules (71 core + 32 v2 constitutional)
• 2,497 tests including 50 adversarial attack scenarios
• 132 MCP tools with role-scoped profiles
• Policy eval <2ms, 403 ops/sec, 15 constraint dimensions
• Zero heavy dependencies — Node.js crypto + uuid only
• Apache-2.0 license

Links

• npm: https://www.npmjs.com/package/agent-passport-system
• MCP: https://www.npmjs.com/package/agent-passport-system-mcp
• PyPI: https://pypi.org/project/agent-passport-system/
• GitHub: https://github.com/aeoess/agent-passport-system
• Docs: https://aeoess.com/llms-full.txt
• Paper: https://doi.org/10.5281/zenodo.18749779