{
  "openapi": "3.1.0",
  "info": {
    "title": "LedgerLens Universal Evidence API",
    "version": "1.0.0",
    "description": "Capture, investigate, export, and independently verify evidence for agent-initiated transactions across payment rails."
  },
  "servers": [{ "url": "https://api.ledgerlens.dev" }],
  "security": [{ "ledgerLensKey": [] }],
  "components": {
    "securitySchemes": { "ledgerLensKey": { "type": "http", "scheme": "bearer" } },
    "schemas": {
      "CanonicalEvidence": {
        "type": "object",
        "required": ["agent", "mandate", "intent", "offer", "policy", "execution", "receipt"],
        "properties": {
          "capture_mode": { "enum": ["inline", "sidecar", "after-the-fact"] },
          "agent": { "type": "object" },
          "authority_chain": { "type": "array", "items": { "type": "object" } },
          "mandate": { "type": "object" },
          "intent": { "type": "object" },
          "offer": { "type": "object" },
          "policy": { "type": "object" },
          "execution": { "type": "object" },
          "receipt": { "type": "object" }
        }
      },
      "PreflightRequest": {
        "type": "object",
        "required": ["agent_id", "merchant", "amount_minor", "currency"],
        "properties": {
          "policy_id": { "type": "string" },
          "agent_id": { "type": "string" },
          "merchant": { "type": "string" },
          "amount_minor": { "type": "integer", "minimum": 1 },
          "currency": { "type": "string", "pattern": "^[A-Z]{3}$" }
        }
      }
    }
  },
  "paths": {
    "/api/v1/evidence": {
      "post": {
        "summary": "Capture a canonical evidence packet",
        "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/CanonicalEvidence" } } } },
        "responses": { "201": { "description": "Signed evidence packet created" }, "409": { "description": "Conflicting external reference" }, "422": { "description": "Invalid evidence" } }
      }
    },
    "/api/v1/policies": {
      "get": { "summary": "List runtime spend policies", "responses": { "200": { "description": "Workspace policies" } } },
      "post": { "summary": "Create a runtime spend policy", "responses": { "201": { "description": "Active policy created" }, "422": { "description": "Invalid limits or allowlist" } } }
    },
    "/api/v1/policies/preflight": {
      "post": {
        "summary": "Reserve budget and decide before payment execution",
        "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/PreflightRequest" } } } },
        "responses": { "201": { "description": "Allowed; budget reserved for 15 minutes" }, "202": { "description": "Human approval required" }, "403": { "description": "Denied by policy" }, "412": { "description": "No active policy; fail closed" } }
      }
    },
    "/api/v1/policies/reservations/{id}": {
      "post": { "summary": "Approve, commit, or release a spend reservation", "parameters": [{ "name": "id", "in": "path", "required": true, "schema": { "type": "string" } }], "responses": { "200": { "description": "Reservation transitioned" }, "409": { "description": "Invalid or expired transition" } } }
    },
    "/api/v1/transactions": { "get": { "summary": "List workspace transactions", "responses": { "200": { "description": "Transaction ledger" } } } },
    "/api/v1/transactions/{id}": { "get": { "summary": "Load a transaction and its real evidence packet", "parameters": [{ "name": "id", "in": "path", "required": true, "schema": { "type": "string" } }], "responses": { "200": { "description": "Transaction, artifacts, packet, verification and recourse" } } } },
    "/api/v1/transactions/{id}/share": { "post": { "summary": "Create an expiring proof-only verification link", "parameters": [{ "name": "id", "in": "path", "required": true, "schema": { "type": "string" } }], "responses": { "201": { "description": "Verification link created" } } } },
    "/api/v1/verify/{token}": { "get": { "summary": "Publicly verify a proof-only evidence packet", "security": [], "parameters": [{ "name": "token", "in": "path", "required": true, "schema": { "type": "string" } }], "responses": { "200": { "description": "Self-contained verification result" }, "404": { "description": "Expired, revoked or invalid link" } } } },
    "/api/v1/adapters/x402": { "post": { "summary": "Capture an x402 v2 transcript", "responses": { "201": { "description": "x402 evidence packet created" } } } },
    "/api/v1/adapters/stripe": { "post": { "summary": "Capture a Stripe PaymentIntent event", "responses": { "201": { "description": "Card evidence packet created" } } } },
    "/api/v1/cases": {
      "get": { "summary": "List recourse cases", "responses": { "200": { "description": "Cases" } } },
      "post": { "summary": "Open a recourse case", "responses": { "201": { "description": "Case with deterministic technical attribution" } } }
    }
  }
}