# Blockchain Money Map x402 Multi-Provider Challenge Normalizer

> Blockchain Money Map x402 Multi-Provider Challenge Normalizer is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Normalizes x402 payment challenge responses from multiple blockchain payment providers into a consistent, comparable format

## Facts

- Endpoint: POST https://api.blockchainmoneymap.com/api/x402/x402-multi-provider-challenge-normalizer
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-money-map-x402-multi-provider-challenge-normalizer-6a6765ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NGyVYvg9Tv3tHsH9AYwTe

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-x402-multi-provider-challenge-normalizer-6a6765ce -d '<json body>'
```

Example prompt: I got a 402 payment challenge back from a provider labeled 'stripe-x402' with status 402 and this challenge JSON — can you normalize it against our reference Coinbase x402 challenge so I can handle both in the same payment flow?

## When to prefer this

Choose this endpoint when your agent needs to interact with multiple x402-payment-gated APIs from different providers and must unify their 402 challenge formats into a single processing path. Ideal for agent frameworks building provider-agnostic x402 payment clients, or when debugging why a payment challenge from one provider doesn't behave like another.

## Known failure modes

- Missing required fields in facts (provider_label, status_code, headers, challenge_json) returns validation error
- Malformed or non-x402 challenge_json may produce incomplete normalization
- Provider label not recognized may result in generic normalization without provider-specific parsing
- Payment failure ($0.01 USDC) if wallet is underfunded or x402 payment flow is misconfigured

## How this service works

Choose Blockchain Money Map for human-readable public blockchain reports or x402-paid agent API services.

## Output

A normalized JSON object representing the x402 payment challenge in a provider-agnostic format, enabling agents to handle payment challenges consistently regardless of which blockchain payment facilitator issued them. May include comparison results when reference_facts are provided.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mode": {
   "enum": [
    "normalize"
   ]
  },
  "facts": {
   "type": "object",
   "required": [
    "provider_label",
    "status_code",
    "headers",
    "challenge_json"
   ],
   "properties": {
    "headers": {
     "type": "object",
     "properties": {
      "x-version": {
       "type": "string",
       "maxLength": 80
      },
      "x-provider": {
       "type": "string",
       "maxLength": 120
      },
      "content_type": {
       "type": "string",
       "maxLength": 120
      },
      "x-request-id": {
       "type": "string",
       "maxLength": 160
      },
      "cache-control": {
       "type": "string",
       "maxLength": 160
      },
      "content-length": {
       "type": "string",
       "maxLength": 40
      }
     },
     "maxProperties": 10,
     "additionalProperties": false
    },
    "status_code": {
     "type": "number"
    },
    "challenge_json": {
     "type": "object",
     "maxProperties": 50,
     "additionalProperties": true
    },
    "provider_label": {
     "type": "string",
     "maxLength": 500
    },
    "resource_url_label": {
     "type": "string",
     "maxLength": 500
    }
   },
   "additionalProperties": false
  },
  "policy": {
   "type": "object",
   "additionalProperties": true
  },
  "reference_facts": {
   "type": "object",
   "required": [
    "provider_label",
    "status_code",
    "headers",
    "challenge_json"
   ],
   "properties": {
    "headers": {
     "type": "object",
     "properties": {
      "x-version": {
       "type": "string",
       "maxLength": 80
      },
      "x-provider": {
       "type": "string",
       "maxLength": 120
      },
      "content_type": {
       "type": "string",
       "maxLength": 120
      },
      "x-request-id": {
       "type": "string",
       "maxLength": 160
      },
      "cache-control": {
       "type": "string",
       "maxLength": 160
      },
      "content-length": {
       "type": "string",
       "maxLength": 40
      }
     },
     "maxProperties": 10,
     "additionalProperties": false
    },
    "status_code": {
     "type": "number"
    },
    "challenge_json": {
     "type": "object",
     "maxProperties": 50,
     "additionalProperties": true
    },
    "provider_label": {
     "type": "string",
     "maxLength": 500
    },
    "resource_url_label": {
     "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-x402-multi-provider-challenge-normalizer-6a6765ce/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)