{
  "format": "delx/intent-card/v1",
  "id": "json-null-prune-api",
  "intent": "JSON Null Prune for an agent workflow",
  "title": "JSON Null Prune API for agents",
  "description": "JSON Null Prune: JSON Null Prune removes null-valued top-level keys from a JSON object from bounded caller-supplied values without an external provider. Call JSON Null Prune before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Null Prune as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-only execution with no paid upstream, live RPC, web search, credentials, custody, signing, media generator, or input retention. Honest limit: Processes bounded caller-supplied data in memory only; it performs no file fetch, database write, code execution, or retention. Advisory output only; the buyer owns authorization, payment policy, and production decisions.",
  "keywords": [
    "JSON Null Prune API",
    "JSON Null Prune for agents",
    "pay per result API",
    "x402 API",
    "no API key"
  ],
  "updated_at": "2026-08-23",
  "canonical_url": "https://commerce.delx.ai/intents/json-null-prune-api",
  "machine_url": "https://commerce.delx.ai/intents/json-null-prune-api.json",
  "recommendation": {
    "tool_name": "util_json_null_prune",
    "service_name": "JSON Null Prune",
    "method": "POST",
    "resource": "https://api.delx.ai/api/v1/x402/json-null-prune",
    "price_usdc": "0.001",
    "payment_protocols": [
      "x402",
      "mpp"
    ],
    "input_schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "type": "object",
      "properties": {
        "object": {
          "type": "object",
          "maxProperties": 128,
          "additionalProperties": true,
          "description": "Object supplied to JSON Null Prune; used only for this bounded calculation and processed in memory without retention."
        }
      },
      "required": [
        "object"
      ],
      "additionalProperties": false
    },
    "example_input": {
      "object": {
        "a": 1,
        "b": null,
        "c": 0
      }
    },
    "example_output": {
      "schema": "delx/util-json-null-prune/v1",
      "operation": "data_batch:json_null_prune",
      "status": "pass",
      "result": {
        "object": {
          "a": 1,
          "c": 0
        },
        "removed_keys": [
          "b"
        ]
      },
      "evidence": {
        "input_sha256": "87c8df8571467e64e55b273ef3bf9c2fffef2d81ad0cab8581f5a7d7a6236c39",
        "retained": false,
        "external_calls": 0
      }
    },
    "agentcash": {
      "buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/json-null-prune -m POST -H 'x-delx-source: intent-card-json-null-prune-api' --max-amount 0.001 -b '{\"object\":{\"a\":1,\"b\":null,\"c\":0}}'",
      "max_amount_usdc": "0.001"
    }
  },
  "attribution": {
    "header": "x-delx-source",
    "value": "intent-card-json-null-prune-api"
  },
  "evidence": {
    "paid_openapi": "https://api.delx.ai/openapi.x402.json",
    "governed_portfolio": "https://api.delx.ai/x402-portfolio.json",
    "live_contract": "https://api.delx.ai/api/v1/x402/json-null-prune"
  }
}