# StrainChain Cannabis Supply Chain Blockchain Tracker

> StrainChain Cannabis Supply Chain Blockchain Tracker is a paid API for AI agents from strainchain.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).

Verifies cannabis product authenticity and traces seed-to-shelf supply chain provenance using blockchain-based NFT strain records and a 4-layer audit trail.

## Facts

- Endpoint: POST https://strainchain.io/api/x402?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strainchain-cannabis-supply-chain-blockchain-tracker-6295de5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yb2DyZH38oUmxFLYeOa0G

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 strainchain-cannabis-supply-chain-blockchain-tracker-6295de5d -d '<json body>'
```

Example prompt: Can you verify the authenticity of this cannabis product using StrainChain? The product ID is PROD-7821 and the seal ID is SEAL-4490XQ — I want to see its blockchain audit trail and authenticity score.

## When to prefer this

Choose StrainChain when you need to verify cannabis product authenticity against a blockchain-backed registry, especially when a seal ID, product ID, or serial number is available. Prefer this over generic QR-code or barcode lookups when compliance-grade 4-layer audit trails are required. Best suited for dispensaries, regulators, or consumers needing trustless verification with on-chain settlement proof.

## Known failure modes

- Product ID or serial not found in blockchain registry — returns verified: false with authenticityScore 0
- Invalid seal ID format causes lookup failure with empty details
- Payment settlement accepted but registry lookup not bound on this edge path — result is unconfirmed
- Missing required body fields (productId, serial) result in validation error
- Network or blockchain node timeout causing delayed or empty response

## How this service works

End-to-end cannabis supply chain tracking: strain NFTs, compliance automation, 4-layer audit trail from seed to shelf.

## Output

Returns a JSON object containing: a verified boolean indicating blockchain confirmation status, an authenticityScore (0-100 scale), subject label, a details note describing the lookup result, and a settlement object with payer address, transaction hash, trustless flag, and atomic USDC amount paid.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "sealId": {
       "type": "string",
       "description": "Optional seal id to verify"
      },
      "serial": {
       "type": "string"
      },
      "productId": {
       "type": "string"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "details": {
   "note": "Paid settlement accepted; registry lookup is not bound on this edge path."
  },
  "subject": "demo",
  "verified": false,
  "settlement": {
   "payer": "0x0000000000000000000000000000000000000000",
   "txHash": "0x",
   "trustless": true,
   "amountAtomic": "50000"
  },
  "authenticityScore": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strainchain-cannabis-supply-chain-blockchain-tracker-6295de5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from strainchain.io](https://www.zero.xyz/host/strainchain.io/llms.txt)