{
  "id": "blob-decode",
  "name": "Bounded compressed blob batch decoding",
  "description": "Decode 1–10 inline canonical Base64 gzip or zlib-wrapped deflate blobs to strict UTF-8 or Base64 bytes. Streaming aggregate input/output and per-item expansion caps. No Brotli, archive extraction, remote fetch, nested decoding or content interpretation.",
  "category": "standards",
  "priceUsd": "0.003",
  "pricingStatus": "proposed-unverified",
  "pricing": {
    "unit": "one successful operation call",
    "proposedNominalUsd": "0.003",
    "sixDecimalTokenBaseUnits": "3000",
    "subscription": false,
    "includesPayerWalletOrNetworkFees": false,
    "liveQuoteVerified": false,
    "condition": "Actual SDK challenge is authoritative only within the caller's explicit authorization; configured six-decimal token peg is an operator assertion, not a conversion guarantee."
  },
  "intents": [
    "batch decode compressed blobs",
    "decompress gzip Base64 payload",
    "decode zlib deflate data",
    "bounded binary payload decompression"
  ],
  "whenToUse": [
    "Decode 1–10 supplied gzip or zlib-wrapped deflate blobs under a combined 32 KiB compressed / 64 KiB decoded budget, retaining strict text or binary bytes."
  ],
  "whenNotToUse": [
    "Brotli, raw deflate, ZIP/TAR archives, multiple gzip members, compression autodetection, external files or URLs, dictionaries, nested decoding, JSON parsing, code execution or large/high-ratio payloads."
  ],
  "capabilities": [
    "gzip decompression",
    "zlib deflate decompression",
    "canonical Base64 input",
    "strict UTF-8",
    "binary Base64 output",
    "batch decoding",
    "streaming output limits"
  ],
  "related": [
    "base64-convert",
    "content-digest",
    "json-repair"
  ],
  "limits": {
    "items": 10,
    "compressedBytes": 32768,
    "decodedBytes": 65536,
    "expansionRatio": 100,
    "inputChunkBytes": 256,
    "base64CodeUnitsPerItem": 43692,
    "outputBytes": 410000,
    "outputLimitScope": "aggregate across all batch items",
    "ratioLimitScope": "per item, decompressed bytes / total compressed bytes",
    "codecs": "gzip single member; zlib-wrapped deflate"
  },
  "errorCodes": [
    "INVALID_INPUT",
    "DUPLICATE_ID",
    "NONCANONICAL_BASE64",
    "COMPRESSED_INPUT_LIMIT",
    "DECOMPRESSION_LIMIT",
    "INVALID_COMPRESSED_DATA",
    "INVALID_UTF8",
    "OUTPUT_TOO_LARGE"
  ],
  "requirementsProfile": {
    "format": "declared-requirements-v1",
    "facts": {
      "execution.suppliedCode": false,
      "execution.remoteMutation": false,
      "execution.llmInference": false,
      "execution.paidMcp": false,
      "verification.semanticTruth": false,
      "verification.sourceAuthenticity": false,
      "verification.liveVulnerabilities": false,
      "numbers.arbitraryPrecisionJson": false,
      "numbers.model": "ieee754-binary64",
      "privacy.requestBodyPersisted": false,
      "execution.deterministic": true,
      "execution.networkAccess": false,
      "privacy.resultBodyPersisted": false,
      "payment.x402": true,
      "payment.mpp": true,
      "operation.id": "blob-decode",
      "operation.category": "standards",
      "limit.httpRequestBytes": 131072,
      "limit.requestBytes": 131072,
      "limit.responseBytes": 524288,
      "limit.resultBytes": 410000,
      "limit.jsonDepth": 32,
      "limit.jsonNodes": 20000,
      "blob.profile": "bounded-compressed-blob-batch-v1",
      "blob.maxItems": 10,
      "blob.maxCompressedBytesTotal": 32768,
      "blob.maxDecodedBytesTotal": 65536,
      "blob.maxExpansionRatio": 100,
      "blob.gzip": true,
      "blob.zlibDeflate": true,
      "blob.brotli": false,
      "blob.rawDeflate": false,
      "blob.archiveExtraction": false,
      "blob.allOrNothing": true,
      "input.items.maxItems": 10,
      "input.items.minItems": 1
    },
    "unknownPolicy": "Undeclared requirements are unknown, never compatible. Matching declared facts does not establish semantic fit or input validity.",
    "preflight": "/preflight"
  },
  "documentation": "/reference/tools/blob-decode.md",
  "serviceContract": "/reference/services/blob-decode.json",
  "errors": [
    {
      "status": 400,
      "meaning": "Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch",
      "retry": "Correct the request before payment"
    },
    {
      "status": 402,
      "meaning": "Payment challenge or rejected payment",
      "retry": "Use official protocol SDK; inspect payment outcome before another payment"
    },
    {
      "status": 409,
      "meaning": "Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN",
      "retry": "Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay"
    },
    {
      "status": 413,
      "meaning": "Input or generated output too large",
      "retry": "Reduce input; no payment attempted for validation failure"
    },
    {
      "status": 415,
      "meaning": "Unsupported media type or compression",
      "retry": "Send uncompressed application/json"
    },
    {
      "status": 422,
      "meaning": "Schema or service-specific semantic validation failure",
      "retry": "Correct input using returned error code; no payment attempted"
    },
    {
      "status": 429,
      "meaning": "Request/payment-attempt rate exceeded",
      "retry": "Wait for rate limit window; preserve existing payment identity"
    },
    {
      "status": 503,
      "meaning": "Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement",
      "retry": "Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation"
    }
  ],
  "numericPrecision": "JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.",
  "paymentWorkflow": {
    "discoveryOnly": false,
    "supportedProtocols": [
      "x402",
      "mpp"
    ],
    "x402": {
      "credentialHeader": "PAYMENT-SIGNATURE",
      "challengeHeader": "PAYMENT-REQUIRED",
      "receiptHeader": "PAYMENT-RESPONSE",
      "version": 2,
      "scheme": "exact",
      "paymentIdentifier": "payment-identifier extension MUST equal the HTTP Idempotency-Key",
      "sdk": "@x402/core with @x402/evm"
    },
    "mpp": {
      "supported": true,
      "credentialHeader": "Authorization",
      "challengeHeader": "WWW-Authenticate",
      "receiptHeader": "Payment-Receipt",
      "method": "tempo",
      "intent": "charge",
      "sdk": "mppx",
      "tokenDecimals": 6
    },
    "steps": [
      "Check configured readiness and the exact service schema",
      "Generate a fresh random Idempotency-Key for this operation; never use a discovery probe fixture for purchases",
      "Send valid input without a credential to obtain the official protocol challenge",
      "Use the official SDK and authorized wallet to fulfill the challenge",
      "Retry only with identical key, body, protocol and credential",
      "On PAYMENT_UNCERTAIN stop and request operator reconciliation; never blindly pay again"
    ],
    "versionedRetries": "Request fingerprint includes service release version. Retries across a version upgrade can conflict; coordinate upgrades outside the 24-hour replay window and reconcile pending attempts.",
    "docs": "/llms.txt"
  },
  "method": "POST",
  "paths": {
    "x402": "/v1/x402/blob-decode",
    "mpp": "/v1/mpp/blob-decode"
  },
  "inputSchema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "profile": {
        "type": "string",
        "const": "bounded-compressed-blob-batch-v1"
      },
      "items": {
        "minItems": 1,
        "maxItems": 10,
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "id": {
              "type": "string",
              "minLength": 1,
              "maxLength": 80,
              "pattern": "^[A-Za-z0-9_-]+$"
            },
            "compression": {
              "type": "string",
              "enum": [
                "gzip",
                "deflate"
              ]
            },
            "data": {
              "type": "string",
              "minLength": 4,
              "maxLength": 43692,
              "pattern": "^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$"
            },
            "outputEncoding": {
              "type": "string",
              "enum": [
                "utf8",
                "base64"
              ]
            }
          },
          "required": [
            "id",
            "compression",
            "data",
            "outputEncoding"
          ],
          "additionalProperties": false
        }
      }
    },
    "required": [
      "profile",
      "items"
    ],
    "additionalProperties": false
  },
  "outputSchema": {
    "type": "object",
    "required": [
      "operation",
      "version",
      "result",
      "provenance"
    ],
    "properties": {
      "operation": {
        "const": "blob-decode",
        "type": "string"
      },
      "version": {
        "const": "0.29.0",
        "type": "string"
      },
      "result": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "profile": {
            "type": "string",
            "const": "bounded-compressed-blob-batch-v1"
          },
          "itemCount": {
            "type": "integer",
            "minimum": 1,
            "maximum": 10
          },
          "totalCompressedBytes": {
            "type": "integer",
            "minimum": 1,
            "maximum": 32768
          },
          "totalDecodedBytes": {
            "type": "integer",
            "minimum": 0,
            "maximum": 65536
          },
          "results": {
            "minItems": 1,
            "maxItems": 10,
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "id": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 80
                },
                "compression": {
                  "type": "string",
                  "enum": [
                    "gzip",
                    "deflate"
                  ]
                },
                "outputEncoding": {
                  "type": "string",
                  "enum": [
                    "utf8",
                    "base64"
                  ]
                },
                "compressedBytes": {
                  "type": "integer",
                  "exclusiveMinimum": 0,
                  "maximum": 32768
                },
                "decodedBytes": {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 65536
                },
                "expansionRatio": {
                  "type": "number",
                  "minimum": 0,
                  "maximum": 100
                },
                "decodedSha256": {
                  "type": "string",
                  "pattern": "^[a-f0-9]{64}$"
                },
                "data": {
                  "type": "string",
                  "maxLength": 87384
                }
              },
              "required": [
                "id",
                "compression",
                "outputEncoding",
                "compressedBytes",
                "decodedBytes",
                "expansionRatio",
                "decodedSha256",
                "data"
              ],
              "additionalProperties": false
            }
          }
        },
        "required": [
          "profile",
          "itemCount",
          "totalCompressedBytes",
          "totalDecodedBytes",
          "results"
        ],
        "additionalProperties": false
      },
      "provenance": {
        "type": "object",
        "required": [
          "inputSha256",
          "outputSha256",
          "deterministic",
          "externalRequests"
        ],
        "properties": {
          "inputSha256": {
            "type": "string",
            "pattern": "^[a-f0-9]{64}$"
          },
          "outputSha256": {
            "type": "string",
            "pattern": "^[a-f0-9]{64}$"
          },
          "deterministic": {
            "const": true
          },
          "externalRequests": {
            "const": 0
          }
        }
      }
    },
    "additionalProperties": false
  },
  "exampleInput": {
    "profile": "bounded-compressed-blob-batch-v1",
    "items": [
      {
        "id": "message",
        "compression": "gzip",
        "data": "H4sIAAAAAAAAA8tIzcnJBwCGphA2BQAAAA==",
        "outputEncoding": "utf8"
      }
    ]
  },
  "exampleResponse": {
    "operation": "blob-decode",
    "version": "0.29.0",
    "result": {
      "profile": "bounded-compressed-blob-batch-v1",
      "itemCount": 1,
      "totalCompressedBytes": 25,
      "totalDecodedBytes": 5,
      "results": [
        {
          "id": "message",
          "compression": "gzip",
          "outputEncoding": "utf8",
          "compressedBytes": 25,
          "decodedBytes": 5,
          "expansionRatio": 0.2,
          "decodedSha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
          "data": "hello"
        }
      ]
    },
    "provenance": {
      "inputSha256": "a928ecf9b5fc113ec31a216e63971729f4ccace245c3095f1b95ded834981ec0",
      "outputSha256": "637ff52e4d85f31c2d1d2b262dedd5f1bbfc28107236408b6209e158077ca55d",
      "deterministic": true,
      "externalRequests": 0
    }
  },
  "requiredHeaders": {
    "Content-Type": "application/json",
    "Idempotency-Key": "random 16–128 character operation identifier"
  },
  "fixedExample": "/reference/examples/blob-decode.json",
  "execution": {
    "deterministic": true,
    "externalRequests": 0,
    "maxExternalRequests": 0,
    "resultSnapshotPersisted": false,
    "fixedExampleIsIllustrativeSnapshot": false,
    "requiresPayment": true,
    "supportsMcpExecution": false
  },
  "releaseSnapshot": {
    "format": "static-release-reference-v1",
    "sourceVersion": "0.29.0",
    "sourceRegistrySha256": "a2b5ec09bf6c38b9d2879d746a4fded374f5928b445377b0270ef6aa8e6cac65",
    "generatedAt": "2026-10-06T15:38:00Z",
    "releaseAcceptance": "not-verified-by-generator",
    "runtimeReadiness": "not-evaluated",
    "livePaymentsVerified": false,
    "indexingVerified": false,
    "apiOrigin": null,
    "notice": "Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment."
  }
}