# Blockchain Money Map – Agent Commerce ROI Receipt Board (Compare Mode)

> Blockchain Money Map – Agent Commerce ROI Receipt Board (Compare Mode) is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Compares two sets of agent API call facts and policies to compute and return a commerce ROI receipt comparing their performance, cost, and quality dimensions.

## Facts

- Endpoint: POST https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-roi-receipt-board?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-money-map-agent-commerce-roi-receipt-board-compare-mode-8db5290e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9h_NWBRdVEOGUvtbQsoBK

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 blockchain-money-map-agent-commerce-roi-receipt-board-compare-mode-8db5290e -d '<json body>'
```

Example prompt: Compare these two sets of agent API calls for me using Blockchain Money Map's ROI receipt board — the first set has 5 calls with a 'retry up to 3 times' retry policy and 'prefer low latency' latency policy, and the reference set has 3 calls with a 'no retry' retry policy, so I can see which strategy has better commerce ROI.

## When to prefer this

Use this endpoint when you need a structured, receipt-style ROI comparison between two agent API call strategies, particularly within blockchain/x402 commerce contexts. Prefer this over manual analysis when you want an automated, policy-aware evaluation of retry, latency, quality, and buyer value tradeoffs across two agent configurations.

## Known failure modes

- Missing required 'calls' array in facts or reference_facts returns a validation error
- mode must be exactly 'compare' — any other value is rejected
- calls arrays exceeding 10 items are truncated or rejected
- Malformed policy objects may result in incomplete analysis
- Payment not provided or insufficient USDC ($0.01) results in 402 response

## How this service works

Operators buying many small paid agent services need to know which calls produced useful value.

## Output

Returns a JSON ROI receipt comparing the two sets of agent API calls across dimensions such as cost, latency, quality, retry behavior, and buyer value, helping agents and developers identify the higher-performing commerce strategy.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mode": {
   "enum": [
    "compare"
   ]
  },
  "facts": {
   "type": "object",
   "required": [
    "calls"
   ],
   "properties": {
    "calls": {
     "type": "array",
     "maxItems": 10
    },
    "retry_policy": {
     "type": "string",
     "maxLength": 500
    },
    "quality_notes": {
     "type": "string",
     "maxLength": 500
    },
    "latency_policy": {
     "type": "string",
     "maxLength": 500
    },
    "buyer_value_policy": {
     "type": "string",
     "maxLength": 500
    }
   },
   "additionalProperties": false
  },
  "policy": {
   "type": "object",
   "additionalProperties": true
  },
  "reference_facts": {
   "type": "object",
   "required": [
    "calls"
   ],
   "properties": {
    "calls": {
     "type": "array",
     "maxItems": 10
    },
    "retry_policy": {
     "type": "string",
     "maxLength": 500
    },
    "quality_notes": {
     "type": "string",
     "maxLength": 500
    },
    "latency_policy": {
     "type": "string",
     "maxLength": 500
    },
    "buyer_value_policy": {
     "type": "string",
     "maxLength": 500
    }
   },
   "additionalProperties": false
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-money-map-agent-commerce-roi-receipt-board-compare-mode-8db5290e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockchainmoneymap.com](https://www.zero.xyz/host/api.blockchainmoneymap.com/llms.txt)