{
  "format": "delx/intent-card/v1",
  "id": "pick-fields-api",
  "intent": "Pick Fields for an agent workflow",
  "title": "Pick Fields API for agents",
  "description": "Pick a shallow whitelist of keys from a JSON object — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already converted externally (random, hash, URL, FX families).",
  "keywords": [
    "Pick Fields API",
    "Pick Fields for agents",
    "pay per result API",
    "x402 API",
    "no API key"
  ],
  "updated_at": "2026-08-07",
  "canonical_url": "https://commerce.delx.ai/intents/pick-fields-api",
  "machine_url": "https://commerce.delx.ai/intents/pick-fields-api.json",
  "recommendation": {
    "tool_name": "util_pick_fields",
    "service_name": "Delx Pick Fields",
    "method": "POST",
    "resource": "https://api.delx.ai/api/v1/x402/pick-fields",
    "price_usdc": "0.001",
    "payment_protocols": [
      "x402",
      "mpp"
    ],
    "input_schema": {
      "type": "object",
      "properties": {
        "object": {
          "description": "Input field: object.",
          "type": "object"
        },
        "keys": {
          "description": "Input field: keys.",
          "type": "array"
        }
      },
      "required": [
        "object",
        "keys"
      ],
      "additionalProperties": true
    },
    "example_input": {
      "object": {
        "a": 1,
        "b": 2,
        "c": 3
      },
      "keys": [
        "a",
        "c",
        "z"
      ]
    },
    "example_output": {
      "schema": "delx/util-pick-fields/v1",
      "ok": true,
      "object": {
        "a": 1,
        "c": 3
      },
      "picked_count": 2,
      "missing": [
        "z"
      ]
    },
    "agentcash": {
      "buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/pick-fields -m POST -H 'x-delx-source: intent-card-pick-fields-api' --max-amount 0.001 -b '{\"object\":{\"a\":1,\"b\":2,\"c\":3},\"keys\":[\"a\",\"c\",\"z\"]}'",
      "max_amount_usdc": "0.001"
    }
  },
  "attribution": {
    "header": "x-delx-source",
    "value": "intent-card-pick-fields-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/pick-fields"
  }
}