# Multi-Agent Shared Wallet Spend Consensus and MPC Quorum Decision Procedure

> Multi-Agent Shared Wallet Spend Consensus and MPC Quorum Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns a generated decision procedure brief guiding AI agents on how to reach consensus and enforce MPC quorum when multiple agents share a wallet and need to authorize spending.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/multi-agent-shared-wallet-spend-consensus-and-mp
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/multi-agent-shared-wallet-spend-consensus-and-mpc-quorum-decision-62ffaae8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WXxzZInig4KJtIJLCxBlS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability multi-agent-shared-wallet-spend-consensus-and-mpc-quorum-decision-62ffaae8
```

Example prompt: Give me the decision procedure for how a group of AI agents should reach consensus and enforce an MPC quorum before spending from a shared wallet — I need the plain-prose brief so our agent collective knows exactly when a transaction is approved to go through.

## When to prefer this

Choose this endpoint when an autonomous agent or agent orchestrator needs procedural guidance specifically for multi-agent shared wallet spending scenarios involving MPC (multi-party computation) quorum enforcement. It is purpose-built for agent-to-agent governance use cases on Base/USDC and returns immediately usable plain-prose decision logic rather than generic policy text. Prefer it over general compliance or governance APIs when the context is specifically on-chain agent coordination with cryptographic signing thresholds.

## Known failure modes

- HTTP 402 returned if payment has not been settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Payment signature mismatch or replay results in rejection
- Invalid HTTP method (only GET/HEAD/DELETE accepted) returns an error
- Network or provider downtime may cause timeout or 5xx response
- Topic override parameter ignored if malformed — defaults to canonical service topic

## How this service works

Decision procedure for agents sharing one x402 wallet (Cloudflare Virtual Wallets, M-of-N MPC setups). Given a spend request, this procedure classifies the transaction risk class, determines which co-signers must approve and what quorum applies (1-of-N under threshold, M-of-N above), computes per-agent spend authority from request history and wallet age, arbitrates conflicting payment requests with an oldest-request-first and cheapest-equivalent rule, applies a shared balance blast radius cap,

## Output

A JSON object containing a plain-prose decision procedure brief (120+ words) written for AI agents, covering how to achieve spend consensus and enforce MPC quorum in a multi-agent shared wallet context. Includes the model used for generation, the topic, generation source (llm/reasoning/deterministic), an ISO-8601 timestamp, the service slug, and provider attribution from K-2SO.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "Multi-agent shared wallet spend consensus and MPC quorum decision procedure paid response",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ok",
      "paid",
      "service",
      "provider",
      "result"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "paid": {
       "type": "boolean"
      },
      "result": {
       "type": "object",
       "required": [
        "ok",
        "service"
       ],
       "properties": {
        "ok": {
         "type": "boolean",
         "description": "Handler success"
        },
        "brief": {
         "type": "string",
         "description": "Decision procedure prose for agents"
        },
        "model": {
         "type": "string"
        },
        "topic": {
         "type": "string"
        },
        "service": {
         "type": "string",
         "description": "Service slug"
        },
        "procedure": {
         "type": "string"
        },
        "generatedAt": {
         "type": "string",
         "description": "ISO-8601 timestamp"
        },
        "generationSource": {
         "enum": [
          "llm",
          "reasoning",
          "deterministic"
         ],
         "type": "string"
        }
       }
      },
      "payment": {
       "type": "object",
       "properties": {
        "code": {
         "type": "string"
        },
        "payer": {
         "type": "string"
        },
        "detail": {
    
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true,
  "result": {
   "ok": true,
   "brief": "plain prose decision procedure (120+ words)",
   "model": "deepseek/deepseek-v4-flash-0731",
   "topic": "string topic",
   "service": "multi-agent-shared-wallet-spend-consensus-and-mp",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "multi-agent-shared-wallet-spend-consensus-and-mp",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/multi-agent-shared-wallet-spend-consensus-and-mpc-quorum-decision-62ffaae8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from k2so.wrong.systems](https://www.zero.xyz/host/k2so.wrong.systems/llms.txt)