Cryptographic Hash & HMAC

Compute an MD5/SHA-1/SHA-256/SHA-384/SHA-512 digest, or an HMAC when hmac_key is supplied, over a bounded input string. Output as hex, base64, or base64url. Deterministic pure compute (Node crypto only) — no network, no upstream. Algorithm is restricted to a safe allowlist.

Sample request

curl -X POST https://x402.agoragentic.com/v1/hash \
  -H "Content-Type: application/json" \
  -d '{"data":"agoragentic","algorithm":"sha256"}'

Unpaid calls return HTTP 402 with PAYMENT-REQUIRED. Paid retries return the execution result plus PAYMENT-RESPONSE and Payment-Receipt after settlement.

Trust fields

{
  "slug": "hash",
  "payable_url": "https://x402.agoragentic.com/v1/hash",
  "price_usdc": "0.01",
  "network": "eip155:8453",
  "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
  "seller_name": "Agoragentic",
  "seller_wallet": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
  "seller_wallet_source": "platform_managed_settlement",
  "settlement_pay_to": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
  "seller_type": "first_party",
  "verification_tier": "verified",
  "side_effect_class": "read_only",
  "statefulness": "stateless",
  "safe_to_retry": true,
  "idempotency_supported": true,
  "idempotency": {
    "extension": "payment-identifier",
    "required": false,
    "mode": "durable_same_signed_payload_cache",
    "cache_ttl_seconds": 3600,
    "note": "Clients may include the official payment-identifier extension. The edge stores successful same-signed-payload retry responses in shared storage and keeps an in-process fallback cache if the store is unavailable."
  },
  "metric_scope": "anonymous_x402_paid_settlements_only",
  "input_limits": {
    "max_input_bytes": 1048576
  },
  "max_runtime_ms": 5000,
  "p50_latency_ms": null,
  "p95_latency_ms": null,
  "success_rate_7d": null,
  "paid_calls_7d": 0,
  "anonymous_x402_total_calls_7d": 0,
  "paying_wallets_30d": 0,
  "repeat_wallets_30d": 0,
  "gross_volume_usdc_7d": 0,
  "last_successful_paid_at": null,
  "refund_rate_30d": null,
  "refund_rate_30d_basis": "credited_paid_failures_over_all_paid_calls_30d",
  "credited_paid_failures_30d": 0,
  "paid_calls_30d": 0,
  "abuse_risk": "low",
  "siwx_supported": false,
  "upgrade_required_for": "none"
}

Schema

{
  "input_schema": {
    "type": "object",
    "required": [
      "data"
    ],
    "properties": {
      "data": {
        "type": "string",
        "maxLength": 1398101,
        "description": "Input to hash (decoded bytes capped at 1 MB)."
      },
      "algorithm": {
        "type": "string",
        "enum": [
          "md5",
          "sha1",
          "sha256",
          "sha384",
          "sha512"
        ]
      },
      "encoding": {
        "type": "string",
        "enum": [
          "hex",
          "base64",
          "base64url"
        ]
      },
      "hmac_key": {
        "type": "string",
        "maxLength": 4096,
        "description": "If present, compute an HMAC instead of a plain digest."
      },
      "input_encoding": {
        "type": "string",
        "enum": [
          "utf8",
          "base64",
          "hex"
        ]
      }
    }
  },
  "output_schema": {
    "type": "object",
    "properties": {
      "algorithm": {
        "type": "string"
      },
      "mode": {
        "type": "string",
        "enum": [
          "hash",
          "hmac"
        ]
      },
      "encoding": {
        "type": "string"
      },
      "digest": {
        "type": "string"
      },
      "digest_hex": {
        "type": "string"
      },
      "byte_length": {
        "type": "integer"
      },
      "input_byte_length": {
        "type": "integer"
      }
    }
  }
}