EVM Token Balance Budget: checks caller-supplied raw token balance against transfer amount

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "28heAMpFkeUJsL7o7apiK4oJwZWq2fUHinRwbgYYsemG",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "category": "chain-primitives-local",
    "info": {
      "input": {
        "body": {
          "amount_raw": "1500000",
          "balance_raw": "2500000"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "evidence": {
            "external_calls": 0,
            "input_sha256": "3fbf7d06140147528cc36197d633495c2ce0bec6c1e9bdeada112e634ce3973c",
            "retained": false
          },
          "operation": "evm_preflight:evm_token_balance_budget",
          "result": {
            "available_raw": "2500000",
            "required_raw": "1500000",
            "shortfall_raw": "0",
            "sufficient": true
          },
          "schema": "delx/util-evm-token-balance-budget/v1",
          "status": "pass"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "body": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "additionalProperties": false,
              "properties": {
                "amount_raw": {
                  "description": "Amount Raw supplied to EVM Token Balance Budget; used only for this bounded calculation and processed in memory without retention.",
                  "maxLength": 8192,
                  "type": "string"
                },
                "balance_raw": {
                  "description": "Balance Raw supplied to EVM Token Balance Budget; used only for this bounded calculation and processed in memory without retention.",
                  "maxLength": 8192,
                  "type": "string"
                }
              },
              "required": [
                "balance_raw",
                "amount_raw"
              ],
              "type": "object"
            },
            "bodyType": {
              "const": "json",
              "type": "string"
            },
            "method": {
              "const": "POST",
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "additionalProperties": true,
          "description": "Versioned bounded first-party JSON result with input evidence; caller data is processed in memory and not retained.",
          "properties": {
            "evidence": {
              "additionalProperties": true,
              "properties": {
                "external_calls": {
                  "type": "integer"
                },
                "input_sha256": {
                  "type": "string"
                },
                "retained": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "operation": {
              "type": "string"
            },
            "result": {
              "additionalProperties": true,
              "properties": {
                "available_raw": {
                  "type": "string"
                },
                "required_raw": {
                  "type": "string"
                },
                "shortfall_raw": {
                  "type": "string"
                },
                "sufficient": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "schema": {
              "type": "string"
            },
            "status": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "input",
        "output"
      ],
      "type": "object"
    },
    "serviceName": "EVM Token Balance Budget",
    "summary": "EVM Token Balance Budget: checks caller-supplied raw token balance against transfer amount using only bounded caller-supplied values. Call when you need a bounded evm token balance budget result before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Token Balance Budget as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base or Solana. First-party, stateless, memory-only execution with no paid upstream, live RPC, web search, credentials, custody, signing, media generator, or input retention. Honest limit: Uses caller-supplied values only; it performs no RPC call, signing, broadcasting, balance lookup, custody, trading, or live-chain claim. Advisory output only; the buyer owns authorization, payment policy, and production decisions.",
    "tags": [
      "base",
      "evm",
      "preflight"
    ]
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "id": {
          "maxLength": 128,
          "minLength": 16,
          "pattern": "^[a-zA-Z0-9_-]+$",
          "type": "string"
        },
        "required": {
          "type": "boolean"
        }
      },
      "required": [
        "required"
      ],
      "type": "object"
    }
  }
}

curl "https://api.delx.ai/api/v1/x402/evm-token-balance-budget"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://api.delx.ai/api/v1/x402/evm-token-balance-budget");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://api.delx.ai/api/v1/x402/evm-token-balance-budget")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header