All workflows

Cache Key Plan

Canonicalize an HTTP request envelope and return a deterministic SHA-256 cache key for agent and API workflows.

1 credit per call · $0.001 USDC with x402

Sample input

{
  "method": "POST",
  "url": "https://api.example.com/v1?q=1",
  "headers": {
    "accept": "application/json"
  },
  "body": {
    "x": 1
  }
}

Worked sample output

{
  "ok": true,
  "mode": "cache_key_plan",
  "cache_key": "sha256:7127e309105a407c9a0e4cbe8d6ba0909ad1e198a43c69155deb74fbfb8ce128",
  "canonical": {
    "method": "POST",
    "url": "https://api.example.com/v1?q=1",
    "headers": {
      "accept": "application/json"
    },
    "body": {
      "x": 1
    }
  }
}

Worked example using published sample data only. Own-data execution is paid.

Connect in curl

Set BOUNTY_API_KEY privately after your payment is verified. Change the retry key for each new logical request.

curl 'https://bounty-engineer-x402-prod.onrender.com/v1/prepaid/cache-key-plan' \
  -H "Authorization: Bearer $BOUNTY_API_KEY" \
  -H 'Content-Type: application/json' \
  -H 'Idempotency-Key: workflow-request-001' \
  -H 'X-Max-Credits: 1' \
  --data '{"method":"POST","url":"https://api.example.com/v1?q=1","headers":{"accept":"application/json"},"body":{"x":1}}'

Connect in n8n

Download the inactive n8n template. Import it, configure the private Header Auth credential, inspect the sample and run it manually. A new execution creates a new billable request; there is no automatic schedule.

Use an HTTP POST to https://bounty-engineer-x402-prod.onrender.com/v1/prepaid/cache-key-plan. Send JSON and these headers; store the Bearer token as a private credential.

{
  "method": "POST",
  "headers": {
    "Authorization": "Bearer YOUR_PRIVATE_API_KEY",
    "Content-Type": "application/json",
    "Idempotency-Key": "UNIQUE_PER_LOGICAL_REQUEST",
    "X-Max-Credits": "1"
  },
  "body": {
    "method": "POST",
    "url": "https://api.example.com/v1?q=1",
    "headers": {
      "accept": "application/json"
    },
    "body": {
      "x": 1
    }
  }
}

Reuse a retry key only for the same input. Failed execution returns reserved credits. Full integration and recovery guide · Machine-readable recipe