Cubiczan Agent Platform

Identity, money, and evidence for agents that actually ship.

Three SKUs, one workspace. MCP clients keep a Bearer principal through tools/call and SSE. Spend cannot settle without a mandate and, over cap, a human second key. Board claims cannot seal without an agent, a CHP lock, and a hashed document.

SKU	Port	Repo	Job
Governed MCP Gateway	:7474	icohangar-ops/governed-mcp-gateway	Principal on every tool call and SSE frame. Vaulted credential rotation. Tool allowlists.
Agent Spend & Mandate Plane	:7475	icohangar-ops/spend-mandate-plane	Propose → mandate → countersign → settle. Stripe by default; x402 is a rail.
Auditable CFO Agent Mesh	:7476	icohangar-ops/cfo-agent-mesh	Claim → agent → lock → document. ASC 842 / 606 / 718 engines. HMAC-chained evidence pack.

Shared primitives (packages/shared): CHP gate, HMAC ledger, HTTP/SSE helpers. Zero runtime npm dependencies. Stripe and x402 are rails — tests never call live networks.

Quickstart

npm install
npm test
npm run gateway   # :7474
npm run spend     # :7475
npm run cfo       # :7476

Demo Bearer keys (also in .env.example):

Role	Key
Gateway agent	mcp_agt_payops_demo
Gateway human	mcp_human_controller_demo
Gateway research (no stripe.charge)	mcp_agt_research_demo
Spend agent	spend_agt_payops_demo
Spend human	spend_human_controller_demo
CFO agent	cfo_agt_lease_demo
CFO human	cfo_human_controller_demo

Regenerate the README cards from live local APIs:

npm run shots

---

1. Governed MCP Gateway

Production MCP drops identity. listTools runs on the request thread; tools/call and SSE run somewhere else. This gateway resolves a Bearer credential to a Principal, injects it on every JSON-RPC call, and repeats it on every SSE frame. Named vault inputs rotate in place — github_token stays github_token.

curl -sS -H "Authorization: Bearer mcp_agt_payops_demo" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"echo.ping","arguments":{"hello":"world"}}}' \
  http://127.0.0.1:7474/mcp

Method	Path	What
POST	/mcp	JSON-RPC initialize, tools/list, tools/call
GET	/mcp/sse?once=1	SSE notification with _meta.cubiczan.principal
POST	/v1/credentials/:name/rotate	Human-only vault rotate; old hash dies
POST	/v1/credentials/verify	Check a secret against the current hash

---

2. Agent Spend & Mandate Plane

Agents propose. Mandates authorize. A human countersigns when the amount is over the auto cap. The proposing agent cannot countersign itself. Settlement is a rail: Stripe meter event by default, x402 payment-required if you ask for it. No chain calls in this MVP.

curl -sS -H "Authorization: Bearer spend_agt_payops_demo" \
  -H "Content-Type: application/json" \
  -d '{"agent":"agt_payops","merchant":{"name":"Stripe","url":"https://stripe.com","country":"US"},"total":"12.00","rationale":"tool meter"}' \
  http://127.0.0.1:7475/v1/proposals

Method	Path	What
POST	/v1/mandates	Operator creates remaining-cents coverage
POST	/v1/proposals	Agent propose; lane auto | approval | blocked
POST	/v1/countersign	Human second key; agents are rejected
POST	/v1/settle	{ "rail": "stripe" } or "x402"

---

3. Auditable CFO Agent Mesh

A board claim is not done until it has an agent, a LOCKED CHP state, and at least one source document hash. Engines measure (ASC 842 lease rollforward, ASC 606 constrained POC, ASC 718 SBC). They do not decide facts of law. Token spend attaches as a source on the same HMAC-chained ledger.

curl -sS -H "Authorization: Bearer cfo_agt_lease_demo" \
  -H "Content-Type: application/json" \
  -d '{"title":"AI spend is $12.00 this period","narrative":"Token ledger supports the board claim.","agentId":"agt_lease"}' \
  http://127.0.0.1:7476/v1/claims

Method	Path	What
POST	/v1/claims	Open a claim
POST	/v1/claims/:id/documents	Attach a named source; SHA-256 stored
POST	/v1/claims/:id/lock	Human lock → LOCKED
POST	/v1/engines/lease	ASC 842 classification + rollforward
GET	/v1/evidence/:id	Seal; 400 if no documents or not locked

Specs

OpenSpec change: openspec/changes/ship-three-sku-platform/.

License

MIT