# Blockchain Money Map Agent Buyer Trust Passport Plus

> Blockchain Money Map Agent Buyer Trust Passport Plus is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Validates and cross-checks agent service facts against reference facts to produce a trust/verification assessment for AI agent buyers before payment

## Facts

- Endpoint: POST https://api.blockchainmoneymap.com/api/x402/x402-agent-buyer-trust-passport-plus
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-money-map-agent-buyer-trust-passport-plus-6db5d906
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1WSLyctUHkCytY77E6_Te

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-buyer-trust-passport-plus-6db5d906 -d '<json body>'
```

Example prompt: Before my agent pays for the 'BlockchainDataFeed' service promising 'real-time ERC-20 transfer alerts' at $0.05 per call with output described as 'JSON alert object with token, amount, and timestamp', can you run a trust passport check against the reference facts I have on file and tell me if the seller's claims are consistent?

## When to prefer this

Choose this endpoint when an AI agent needs to programmatically verify the trustworthiness of another agent service's advertised claims before committing to an x402 micropayment — especially in automated agent-to-agent commerce pipelines where human oversight is absent. Prefer this over manual review when you have structured reference facts to compare against and need a machine-readable trust verdict at decision time.

## Known failure modes

- Missing required facts fields (service_name, buyer_promise, price, output_description) returns validation error
- Mismatched schema types for price field cause parsing errors
- mode must be set to 'check' or request is rejected
- proof_links array exceeding 10 items returns schema violation
- Payment of $0.01 USDC not received results in 402 Payment Required response
- reference_facts object missing required fields causes incomplete comparison

## How this service works

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

## Output

A JSON trust assessment comparing the submitted service facts against reference facts, flagging any inconsistencies in service name, buyer promise, price, output description, or metadata, and producing an overall trust/verification verdict for the buyer agent to act on.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mode": {
   "enum": [
    "check"
   ]
  },
  "facts": {
   "type": "object",
   "required": [
    "service_name",
    "buyer_promise",
    "price",
    "output_description"
   ],
   "properties": {
    "price": {
     "type": [
      "string",
      "number"
     ],
     "maxLength": 500
    },
    "limitations": {
     "type": "string",
     "maxLength": 500
    },
    "proof_links": {
     "type": "array",
     "maxItems": 10
    },
    "mcp_metadata": {
     "type": "string",
     "maxLength": 500
    },
    "service_name": {
     "type": "string",
     "maxLength": 500
    },
    "buyer_promise": {
     "type": "string",
     "maxLength": 500
    },
    "agent_card_summary": {
     "type": "string",
     "maxLength": 500
    },
    "output_description": {
     "type": "string",
     "maxLength": 500
    },
    "seller_wallet_label": {
     "type": "string",
     "maxLength": 500
    }
   },
   "additionalProperties": false
  },
  "policy": {
   "type": "object",
   "additionalProperties": true
  },
  "reference_facts": {
   "type": "object",
   "required": [
    "service_name",
    "buyer_promise",
    "price",
    "output_description"
   ],
   "properties": {
    "price": {
     "type": [
      "string",
      "number"
     ],
     "maxLength": 500
    },
    "limitations": {
     "type": "string",
     "maxLength": 500
    },
    "proof_links": {
     "type": "array",
     "maxItems": 10
    },
    "mcp_metadata": {
     "type": "string",
     "maxLength": 500
    },
    "service_name": {
     "type": "string",
     "maxLength": 500
    },
    "buyer_promise": {
     "type": "string",
     "maxLength": 500
    },
    "agent_card_summary": {
     "type": "string",
     "maxLength": 500
    },
    "output_description": {
     "type": "string",
     "maxLength": 500
    },
    "seller_wallet_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-agent-buyer-trust-passport-plus-6db5d906/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)