{
  "format": "delx/intent-card/v1",
  "id": "dns-spf-lookup-budget-api",
  "intent": "DNS SPF Lookup Budget for an agent workflow",
  "title": "DNS SPF Lookup Budget API for agents",
  "description": "DNS SPF Lookup Budget: DNS SPF Lookup Budget counts DNS-triggering SPF mechanisms against a configured budget from bounded caller-supplied values without an external provider. Call DNS SPF Lookup Budget before counting DNS-triggering SPF mechanisms against a lookup budget. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for DNS SPF Lookup Budget as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-only execution with no paid upstream, live RPC, web search, credentials, custody, signing, media generator, or input retention. Honest limit: Evaluates only caller-supplied metadata; it performs no DNS lookup, HTTP request, web search, credential use, or persistent storage. Advisory output only; the buyer owns authorization, payment policy, and production decisions.",
  "keywords": [
    "DNS SPF Lookup Budget API",
    "DNS SPF Lookup Budget for agents",
    "pay per result API",
    "x402 API",
    "no API key"
  ],
  "updated_at": "2026-08-23",
  "canonical_url": "https://commerce.delx.ai/intents/dns-spf-lookup-budget-api",
  "machine_url": "https://commerce.delx.ai/intents/dns-spf-lookup-budget-api.json",
  "recommendation": {
    "tool_name": "util_dns_spf_lookup_budget",
    "service_name": "DNS SPF Lookup Budget",
    "method": "POST",
    "resource": "https://api.delx.ai/api/v1/x402/dns-spf-lookup-budget",
    "price_usdc": "0.001",
    "payment_protocols": [
      "x402",
      "mpp"
    ],
    "input_schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "type": "object",
      "properties": {
        "record": {
          "type": "string",
          "maxLength": 8192,
          "description": "Record supplied to DNS SPF Lookup Budget; used only for this bounded calculation and processed in memory without retention."
        },
        "maximum": {
          "type": "integer",
          "description": "Maximum supplied to DNS SPF Lookup Budget; used only for this bounded calculation and processed in memory without retention."
        }
      },
      "required": [
        "record",
        "maximum"
      ],
      "additionalProperties": false
    },
    "example_input": {
      "record": "v=spf1 include:a.example include:b.example mx -all",
      "maximum": 10
    },
    "example_output": {
      "schema": "delx/util-dns-spf-lookup-budget/v1",
      "operation": "web_reliability:dns_spf_lookup_budget",
      "status": "pass",
      "result": {
        "mechanisms": [
          "include:a.example",
          "include:b.example",
          "mx",
          "-all"
        ],
        "dns_lookup_terms": 3,
        "terminal": "-all",
        "maximum": 10,
        "within_budget": true
      },
      "evidence": {
        "input_sha256": "59ce243626eaef239d274d03667e46eee898bb4ca5ecebb645c2679c97cdc137",
        "retained": false,
        "external_calls": 0
      }
    },
    "agentcash": {
      "buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/dns-spf-lookup-budget -m POST -H 'x-delx-source: intent-card-dns-spf-lookup-budget-api' --max-amount 0.001 -b '{\"record\":\"v=spf1 include:a.example include:b.example mx -all\",\"maximum\":10}'",
      "max_amount_usdc": "0.001"
    }
  },
  "attribution": {
    "header": "x-delx-source",
    "value": "intent-card-dns-spf-lookup-budget-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/dns-spf-lookup-budget"
  }
}