Specific transaction in the mempool

GET /mempool/:hash

Return content of the requested transaction.

Hosted Endpoint only available for hosted variant.

Request

Path Parameters

hash 64-character case-sensitive hexadecimal string. required
Hash of the requested transaction
Example: 6e5f825c42c1c6d6b77f2a14092f3b78c8f1b66db6f4cf8caec1555b6f967b3b

Responses

• 200
• 400
• 403
• 404
• 418
• 429
• 500

---

Return the contents of the transaction.

application/json

Schema

Example (from schema)

---

Schema

tx objectrequired

hash string required

Transaction hash

output_amount object[]required

Array [

unit Lovelace or concatenation of asset policy_id and hex-encoded asset_name required

The unit of the value

quantity string required

The quantity of the unit

]

fees string required

Fees of the transaction in Lovelaces

deposit string required

Deposit within the transaction in Lovelaces

size integer required

Size of the transaction in Bytes

invalid_before string nullable required

Left (included) endpoint of the timelock validity intervals

invalid_hereafter string nullable required

Right (excluded) endpoint of the timelock validity intervals

utxo_count integer required

Count of UTXOs within the transaction

withdrawal_count integer required

Count of the withdrawals within the transaction

mir_cert_count integer required

Count of the MIR certificates within the transaction

delegation_count integer required

Count of the delegations within the transaction

stake_cert_count integer required

Count of the stake keys (de)registration within the transaction

pool_update_count integer required

Count of the stake pool registration and update certificates within the transaction

pool_retire_count integer required

Count of the stake pool retirement certificates within the transaction

asset_mint_or_burn_count integer required

Count of asset mints and burns within the transaction

redeemer_count integer required

Count of redeemers within the transaction

valid_contract boolean required

True if contract script passed validation

inputs object[]required
Array [
address string
Input address
tx_hash string required
Hash of the UTXO transaction
output_index integer required
UTXO index in the transaction
collateral boolean required
Whether the input is a collateral consumed on script validation failure
reference boolean
Whether the input is a reference transaction input
]
outputs object[]required
Array [
address string required
Output address
amount object[]required
Array [
unit Lovelace or concatenation of asset policy_id and hex-encoded asset_name required
The unit of the value
quantity string required
The quantity of the unit
]
output_index integer required
UTXO index in the transaction
data_hash string nullable required
The hash of the transaction output datum
inline_datum string nullable required
CBOR encoded inline datum
collateral boolean required
Whether the output is a collateral output
reference_script_hash string nullable required
The hash of the reference script of the output
]
redeemers object[]
Array [
tx_index integer required
Index of the redeemer within the transaction
purpose string required
Possible values: [spend, mint, cert, reward]
Validation purpose
unit_mem string required
The budget in Memory to run a script
unit_steps string required
The budget in CPU steps to run a script
]

{
  "tx": {
    "hash": "1e043f100dce12d107f679685acd2fc0610e10f72a92d412794c9773d11d8477",
    "output_amount": [
      {
        "unit": "lovelace",
        "quantity": "42000000"
      },
      {
        "unit": "b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e",
        "quantity": "12"
      }
    ],
    "fees": "182485",
    "deposit": "0",
    "size": 433,
    "invalid_before": null,
    "invalid_hereafter": "13885913",
    "utxo_count": 4,
    "withdrawal_count": 0,
    "mir_cert_count": 0,
    "delegation_count": 0,
    "stake_cert_count": 0,
    "pool_update_count": 0,
    "pool_retire_count": 0,
    "asset_mint_or_burn_count": 0,
    "redeemer_count": 0,
    "valid_contract": true
  },
  "inputs": [
    {
      "address": "addr1q9ld26v2lv8wvrxxmvg90pn8n8n5k6tdst06q2s856rwmvnueldzuuqmnsye359fqrk8hwvenjnqultn7djtrlft7jnq7dy7wv",
      "tx_hash": "1a0570af966fb355a7160e4f82d5a80b8681b7955f5d44bec0dce628516157f0",
      "output_index": 0,
      "collateral": false,
      "reference": false
    }
  ],
  "outputs": [
    {
      "address": "addr1q9ld26v2lv8wvrxxmvg90pn8n8n5k6tdst06q2s856rwmvnueldzuuqmnsye359fqrk8hwvenjnqultn7djtrlft7jnq7dy7wv",
      "amount": [
        {
          "unit": "lovelace",
          "quantity": "42000000"
        },
        {
          "unit": "b0d07d45fe9514f80213f4020e5a61241458be626841cde717cb38a76e7574636f696e",
          "quantity": "12"
        }
      ],
      "output_index": 0,
      "data_hash": "9e478573ab81ea7a8e31891ce0648b81229f408d596a3483e6f4f9b92d3cf710",
      "inline_datum": "19a6aa",
      "collateral": false,
      "reference_script_hash": "13a3efd825703a352a8f71f4e2758d08c28c564e8dfcce9f77776ad1"
    }
  ],
  "redeemers": [
    {
      "tx_index": 0,
      "purpose": "spend",
      "unit_mem": "1700",
      "unit_steps": "476468"
    }
  ]
}

Bad request

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 400,
  "error": "Bad Request",
  "message": "Backend did not understand your request."
}

Authentication secret is missing or invalid

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 403,
  "error": "Forbidden",
  "message": "Invalid project token."
}

Component not found

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 404,
  "error": "Not Found",
  "message": "The requested component has not been found."
}

IP has been auto-banned for extensive sending of requests after usage limit has been reached

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 418,
  "error": "Requested Banned",
  "message": "IP has been auto-banned for flooding."
}

Usage limit reached

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 429,
  "error": "Project Over Limit",
  "message": "Usage is over limit."
}

Internal Server Error

application/json

Schema

Example (from schema)

---

Schema

status_code integer required
error string required
message string required

{
  "status_code": 500,
  "error": "Internal Server Error",
  "message": "An unexpected response was received from the backend."
}

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