CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project will adhere to Semantic Versioning once it reaches maturity in v1.

Unreleased changes are in the master branch.

[Unreleased]

[0.1.87] - 2026-03-31

Added

• TLS features to Rust API client (upgraded generator from 7.12.0 to 7.20.0, reqwest to 0.13+)

Fixed

• Pagination parameters (count, page, order) for governance proposal withdrawals endpoints
  • /governance/proposals/:tx_hash/:cert_index/withdrawals
  • /governance/proposals/:gov_action_id/withdrawals

[0.1.86] - 2026-03-02

Added

• New tx_slot, block_time, and block_height fields in /accounts/:stake_address/delegations, /accounts/:stake_address/registrations, /accounts/:stake_address/withdrawals, and /accounts/:stake_address/mirs responses
• New treasury_donation field in /txs/:tx_hash response

[0.1.85] - 2026-02-11

Added

• New registered field in /accounts/:stake_address response indicating whether the stake address is currently registered

Fixed

• description for active field in /accounts/:stake_address response to clarify it represents delegation state

[0.1.84] - 2025-11-27

Added

• Exposed off-chain metadata fetch errors in metadata responses in /governance/dreps/:drep_id/metadata
  • Error object structure:

    {
      "code": "HASH_MISMATCH" | "CONNECTION_ERROR" | "HTTP_RESPONSE_ERROR" | "DECODE_ERROR" | "SIZE_EXCEEDED" | "UNKNOWN_ERROR",
      "message": "Human-readable description of the error"
    }

  • If metadata are available, the error field is omitted

[0.1.83] - 2025-11-25

Fixed

• /network/eras number format
• Added PlutusV3 to the type field of the script object, to match the actual API response types

[0.1.82] - 2025-10-20

Added

• New endpoint for retrieving transactions linked to a stake account /accounts/:stake_address/transactions

[0.1.81] - 2025-10-08

Added

• Included proposal reference fields in /governance/drep/:drep_id/votes
  • Each vote now includes proposal_id, proposal_tx_hash and proposal_cert_index

Fixed

• Description of tx_hash and cert_index in in /governance/drep/:drep_id/votes

[0.1.80] - 2025-09-18

Added

• Support for Governance Action Identifier (CIP-129)
  • New endpoints for querying with Gov Action ID : /governance/proposals/:gov_action_id
  • Proposal response now includes an id field containing the governance action identifier
• Exposed dbsync off-chain metadata fetch errors in metadata responses
  • Applies to endpoints:
    • /pools/:pool_id/metadata
    • /pools/extended
    • /governance/proposals/:gov_action_id/metadata
  • Error object structure:

    {
      "code": "HASH_MISMATCH" | "CONNECTION_ERROR" | "HTTP_RESPONSE_ERROR" | "DECODE_ERROR" | "SIZE_EXCEEDED" | "UNKNOWN_ERROR",
      "message": "Human-readable description of the error"
    }

  • If metadata are available, the error field is omitted

[0.1.79] - 2025-06-06

Fixed

• Added action updated to DReps updates /accounts/:drep_id/updates

[0.1.78] - 2025-05-23

Added

• Added support for calidus keys (CIP-0151) in /pools/:pool_id endpoint

[0.1.77] - 2025-05-19

Fixed

• /governance/proposals/:tx_hash/:cert_index: fixed description for dropped_epoch
• cleaned up metadata in /pools/extended by removing unnecessary required fields

[0.1.76] - 2025-04-03

Fixed

• nix-shell commands

Added

• rust types
• exposed new attributes live_saturation, blocks_minted, declared_pledge, margin_cost, fixed_cost and metadata in /pools/extended

[0.1.75] - 2025-03-26

Added

• /blocks/:hash_or_number/txs/cbor endpoint

[0.1.74] - 2025-03-13

Added

• /blocks/latest/txs/cbor endpoint
• exposed new attributes live_saturation, blocks_minted, declared_pledge, margin_cost, fixed_cost and metadata in /pools/extended

[0.1.73] - 2025-01-30

Fixed

• Allow all proposal parameters to be nullable, remove unused nonce param

[0.1.72] - 2025-01-16

Added

• New fields in /governance/dreps/:drep
  • retired: Indicates the registration state of the DRep. Set to true if the DRep has been deregistered; otherwise, false.
  • expired: , Indicates whether the DRep has been inactive for a consecutive number of epochs (determined by a epoch parameter drep_activity)
  • last_active_epoch: Epoch of the most recent action - registration, update, deregistration or voting

Changed

• Deprecated fields in /governance/dreps/:drep
  • active: Superseded by the new retired and expired
  • active_epoch: Replaced by last_active_epoch

[0.1.71] - 2024-12-01

Added

• Filecoin support in IPFS endpoints

[0.1.70] - 2024-11-26

Added

• version query param in /utils/txs/evaluate and /utils/txs/evaluate/utxos endpoint

Fixed

• IPFS state enum

[0.1.69] - 2024-10-31

Added

• /account/:stake_addr/utxos for retrieving utxos associated with a stake account

[0.1.68] - 2024-10-14

Added

• new UI for the API Reference
• parsing version 3 of CIP68 metadata

Changed

• updated dependencies
• allow CIP25v1 metadata encoding where asset name not utf8 encoded (hex asset name = lookup key in json map)

Fixed

• Ogmios API Reference URL

[0.1.67] - 2024-09-11

Added

• /txs/{hash}/utxos
  • consumed_by_tx field
• /epochs/{number}/parameters and /epochs/latest/parameters
  • cost_models_raw field, list variant of cost_models without name mapping

Fixed

• Naming of pvtpp_security_group -> pvt_p_p_security_group, the old field is preserved but marked as deprecated.
• /governance/proposals/{tx_hash}/{cert_index}/parameters
  • Example and description of cost_models (these match cost_models_raw of epoch parameters)

[0.1.66] - 2024-09-02

Changed

• reverted Mithril support

[0.1.65] - 2024-07-24

Added

• CIP-1964 support
• Mithrill support
• raw tx CBOR

[0.1.64] - 2024-06-27

Added

• /txs/{hash}/cbor endpoint

[0.1.63] - 2024-03-14

Changed

• /epochs/{number}/parameters and /epochs/latest/parameters
  • min_utxo field deprecated, prefer coins_per_utxo_size for Alonzo and later eras

[0.1.62] - 2024-03-05

Added

• Parsing version 2 of CIP68 metadata

Fixed

• tx_metadata_label_json and script_json compatibility with fast-json-stringify for non-object/primitive types (eg. string)

[0.1.61] - 2024-02-06

Added

• /txs/{hash}/required_signers endpoint
• rust models definitions

Changed

• Updated deps - node 18 now required due to node-cbor pkg

[0.1.60] - 2023-10-05

Fixed

• HTML table is SDKs
• requestBody for /tx/submit and /ipfs/add endpoint
• CODE language for curl examples
• request body for /utils/txs/evaluate endpoint

Changed

• downgrade to OpenAPI 3.0.0

[0.1.59] - 2023-07-20

Added

• exported patched fastify-compatible JSONSchema to json-schema.json

Changed

• URL for downloading OpenAPI spec

Fixed

• ajv as dev instead of devDep in package.json

[0.1.58] - 2023-05-17

Added

• CIP68 RFT 444 support
• onchain_metadata_extra in asset schema

Changed

• unify error message format order {status_code, message, error} -> {error, message, status_code}

[0.1.57] - 2023-03-17

Fixed

• getSchemaForEndpoint compatibility with fast-json-stringify (array in type not supported except for ["<type>", "null"], fix for nested arbitrary objects)
• generated ts types and schema for /ipfs/gateway/{IPFS_path}

[0.1.56] - 2023-03-15

Fix

• nutlink/{address} metadata type

[0.1.55] - 2023-03-15

Added

• /utils/txs/evaluate/utxos method
• initial support for POST endpoints to getSchemaForEndpoint
• additional IPFS description

Changed

• Migrated to OpenAPI 3.1.0

Removed

• named error responses from OpenAPI spec (overusage_limit, mempool_full, pin_queue_full, autobanned, not_found, internal_server_error, unauthorized_error, bad_request).

Fixed

• CIP25v2 metadata validation improvements (gracefully handling of CIP25v1 metadata passed as v2)

[0.1.54] - 2023-02-03

Fixed

• missing CIP68v1 in onchain_metadata_standard enum

[0.1.53] - 2023-02-02

Added

• /mempool/addresses/{address} endpoint

Fixed

• /mempool/{hash} field inline_datum in transaction output now returns CBOR
• /utils/txs/evaluate example and Ogmios API Reference URL
• CIP25v2 validation (getOnchainMetadata)

[0.1.52] 2023-01-02

Added

• validateCIP68Metadata util function returns the validated metadata with proper TS type

Changed

• document data source of decimals field in /addresses/{address}/extended

[0.1.51] - 2022-12-29

Added

• validateCIP68Metadata util function to validate CIP68 metadata

[0.1.50] - 2022-12-13

Added

• address field to /addresses/{address}/utxos and /addresses/{address}/utxos/{asset}

Fixed

• table HTML tags
• missing summaries

[0.1.49] - 2022-11-26

Changed

• update deps and yarn version

Added

• test coverage
• getCIPstandard, getOnchainMetadataVersion, getOnchainMetadata functions

[0.1.48] - 2022-11-25

Fixed

• descriptions

[0.1.47] - 2022-11-24

Added

• getSchema util function
• validateSchema util function
• onchain_metadata_standard to /assets/{asset_id} endpoint to report onchain_metadata validity

Changed

• moved CIP-25 validation to a custom schema to avoid strict check on onchain_metadata

[0.1.46] - 2022-11-22

Added

• /network/eras endpoint

Changed

• adjust CIP-25 and add v2 validation for onchain_metadata in /assets/{asset_id}
• refactored custom schemas

[0.1.45] - 2022-11-20

Fixed

• accidental npm release

[0.1.44] - 2022-11-07

Added

• getSchemaForEndpoint util function

Fixed

• /pools/extended example

[0.1.43] - 2022-08-25

• skipped due to acciedental npm publish

Changed

• ⚠️ BREAKING CHANGE: NPM package - typescript types are now exported by default
• add querystring and params to schemas

Added

• typescript types with export
• /mempool and /mempool/{hash} endpoints

[0.1.42] - 2022-08-25

Added

• HTTP 425 - Pin Queue Full to Errors for limiting queue in ipfs/pin/add/{IPFS_path} endpoint
• New networks preview and preprod

Fixed

• Typos and examples

[0.1.41] - 2022-07-27

Changed

• Refactored anyOf to anyVlaue

Fixed

• Missing block_time in schema for asset transactions
• Missing additionalProperties in json_metadata and cost_models

[0.1.40] - 2022-07-15

Added

• Block schema now contains extra
  • op_cert field
  • op_cert_counter field
• /txs/{hash}/utxos
  • outputs now has extra boolean collateral field which is true when the transaction output is a collateral output
• /epochs/{number}/parameters and /epoch/latest/parameters now has
  • cost_models field with JSON containing cost models parameters for Plutus Core scripts

Fixed

• /epochs/{number}/parameters and /epochs/latest/parameters
  • extra_entropy type changed from object to string

[0.1.39] - 2022-07-01

Added

• /txs/{hash}/utxos
  • inputs and outputs now contain extra
    • inline_datum field
    • reference_script_hash field
  • inputs now has a boolean reference field, true if the input is a reference input
• /addresses/{address}/utxos and /addresses/{address}/utxos/{asset}
  • inline_datum field
  • reference_script_hash field
• /scripts/datum/{datum-hash}/cbor endpoint

Changed

• /txs/{hash}/redeemers - datum_hash field deprecated, prefer redeemer_data_hash
• /scripts/{hash}/redeemers - datum_hash field deprecated, prefer redeemer_data_hash
• /epochs/{number}/parameters and /epochs/latest/parameters
  • coins_per_utxo_word field deprecated, prefer coins_per_utxo_size
    • coins_per_utxo_size is now
      • Cost per UTxO word for Alonzo.
      • Cost per UTxO byte for Babbage and later.
• /scripts/{hash} ⚠️
  • type field now uses plutusV1 and plutusV2 instead of just plutus to be able to differentiate between two PlutusScript versions.

Fixed

• /scripts/{script-hash}/cbor - cbor field type changed to string

[0.1.37] - 2022-03-24

Added

• type property to /accounts/{stake_address}/rewards endpoint
• /utils/txs/evaluate endpoint

[0.1.36] - 2021-12-21

Added

• blocks_epoch property to /pools/{pool_id} endpoint

Fixed

• mark tx_hash in /blocks/{hash_or_number}/addresses as required field

[0.1.35] - 2021-12-10

Added

• /blocks/{hash_or_number}/addresses

[0.1.34] - 2021-12-07

Added

• /pools/extended endpoint
• /utils/addresses/xpub/{xpub}/{role}/{index} endpoint

[0.1.33] - 2021-11-24

Added

• /addresses/{address}/extended endpoint
• /accounts/{stake_address}/addresses/total endpoint

Fixed

• multiple descriptions

[0.1.32] - 2021-10-30

Added

• block_time property to /assets/{asset}/transactions

[0.1.31] - 2021-10-30

Added

• block_time property to /addresses/{address}/transactions and /txs/{hash}

[0.1.30] - 2021-10-14

Added

• HTTP 425 - Mempool Full to Errors for better handling of full mempool in /tx/submit endpoint
• Alonzo support related additions
  • valid_contract property to /txs/{hash} endpoint, true when attached script passed validation, false if it failed phase 2 validation
  • datum_hash and script_hash properties to /txs/{hash}/redeemers
  • datum_hash property to /scripts/{hash}/redeemers
  • /scripts/datum/{datum-hash} endpoint
  • /scripts/{script_hash}/json endpoint for dumping timelock scripts
  • /scripts/{script_hash}/cbor endpoint for dumping plutus script contents

Changed

• /epochs/{number}/parameters - collateral_percent type from number to integer

Fixed

• /network supply descriptions

[0.1.29] - 2021-10-07

Added

• /addresses/{address}/utxos/{asset} endpoint

Changed

• enforce pagination limits

Fixed

• description of stake_cert_count in /txs/{hash}

[0.1.28] - 2021-09-29

Added

• output_index to each output item for /txs/{hash}/utxos endpoint

Changed

• /txs/{hash}/metadata/cbor and metadata/txs/labels/{label}/cbor property cbor_metadata is now deprecated in favour of metadata property

Fixed

• /txs/{hash}/utxos - data_hash field moved up from amount to output item
• /txs/{hash}/utxos - output_index of input items switch from number to integer

[0.1.27] - 2021-09-12

Added

• Alonzo support related additions
  • /scripts endpoint for listing all scripts
  • /scripts/{hash} endpoint for script details
  • /scripts/{hash}/redeemers endpoint for listing reedemers of a script
  • /txs/{hash}/redeemers endpoint for querying transaction redeemers
  • locked property to /network endpoint, representing total supply locked by scripts
  • script property to /addresses/{hash}, which is true when the address is a script address.
  • redeemer_count property to /txs/{hash} endpoint
  • Boolean collateral property to inputs object of /txs/{hash}/utxos endpoint
  • data_hash property to both inputs and outputs objects of /txs/{hash}/utxos endpoint
  • data_hash property to /addressess/{hash}/utxos endpoint
  • /epoch/latest/parameters and /epoch/{number}/parameters extended with cost model fields.

Fixed

• /ipfs/add size response type fixed from integer to string
• types of IPFS size examples
• description of ipfs/pin/list/<object>
• onchain_metadata type of /assets/{asset} endpoint

[0.1.26] - 2021-08-12

Fixed

• multiple descriptions and examples, mainly related to time/date

[0.1.25] - 2021-07-27

Added

• network endpoint

Fixed

• typo in /addresses/{address}/txs description - thanks @papacarp

[0.1.24] - 2021-07-16

Added

• properties tx_hash and output_index to inputs of /txs/{hash}/utxos endpoint
• stake_address property to /accounts/{stake_address} endpoint
• address property to /addresses/{address} and /addresses/{address}/total endpoints
• asset property to /assets/{asset} endpoint
• epoch property to /epochs/{number}/parameters and /epochs/latest/parameters endpoints
• pool_id and hex properties to /pools/{pool_id} and /pools/{pool_id}/metadata endpoints
• hash property to /txs/{hash} and /txs/{hash}/utxos endpoints
• address property to /nutlink/{address} endpoint

Fixed

• clarified active stake amount in /epochs/{number}/stakes and /epochs/{number}/stakes/{pool_id}
• pagination of accounts/{stake_address}/addresses/assets endpoint

[0.1.23] - 2021-07-01

Added

• mint_or_burn_count property to /assets/{asset} endpoint
• asset_mint_or_burn_count property to /txs/{hash} endpoint
• decimals property to /assets/{asset} endpoint

[0.1.22] - 2021-07-01

Added

• nutlink endpoints

Changed

• authentication documentation

[0.1.19] - 2021-06-11

Added

• mir_cert_count property to /txs/{hash}
• additional query parameters from and to into /addresses/{address}/transactions endpoint
• /txs/{hash}/mirs endpoint to display MIR details
• /accounts/{stake_address}/withdrawals and /accounts/{stake_address}/mirs endpoints

Fixed

• txs/{hash}/stakes default ordering

[0.1.18] - 2021-06-06

Fixed

• properties of /addresses/{address}/transactions and /assets/{asset}/transactions to be required

[0.1.17] - 2021-06-02

Added

• /addresses/{address}/transactions and /assets/{asset}/transactions endpoints to provide more details about transactions and make the endpoint extendable (object) for future needs
• /blocks/slot/{slot_number} and /blocks/epoch/{epoch_number}/slot/{slot_number} endpoints to provide block details for a specific slot

Changed

• /addresses/{address}/txs and /assets/{asset}/txs are deprecated (but still functional) in favour of newly added endpoints

Fixed

• type of number parameter in /epochs/{number}/ string -> integer

[0.1.16] - 2021-05-25

Added

• /accounts/{stake_address}/addresses/assets endpoint to list all assets on addresses related to a given stake_address (account)
• /epochs/latest/parameters and /blocks/latest/txs endpoints to list the current information about latest epoch and block

Changed

• implementation (increase allowed burst) of rate limiting and clarified documentation

Fixed

• onchain_metadata in /assets/{asset}/total endpoint that could have been missing in some special cases
• onchain_metadata in /assets/:asset endpoint to return null on malformed data which do not follow https://github.com/cardano-foundation/CIPs/pull/85/files

[0.1.15] - 2021-05-19

Fixed

• registration and retirement arrays in /pools/{pool_id}/ endpoint doesn't need to be Nullable

[0.1.14] - 2021-05-19

Fixed

• amount in /accounts/{stake_address}/rewards, /accounts/{stake_address}/delegations and /accounts/{stake_address}/history endpoints doesn't need to be Nullable

[0.1.13] - 2021-05-06

Fixed

• inconsistency in /txs endpoints when array was used outside of ref (moved array inside the referenced schema)

[0.1.12] - 2021-04-29

Added

• slightly improved README

Fixed

• all occurences of epoch to active_epoch in /accounts/{stake_address}/history endpoint
• required properties of multiple endpoints and error messages

[0.1.11] - 2021-04-23

Added

• block_height to /txs/{hash} endpoint

Fixed

• alphabetical ordering in Cardano subcategory documentation

[0.1.10] - 2021-04-17

Changed

• deprecated index in favour of cert_index in /txs/{hash}/delegations

Added

• onchain_metadata to /assets/{asset} endpoint
• slot parameter to /txs/{hash} endpoint
• cert_index parameter to all relevant endpoints:
  • /txs/{hash}/stakes
  • /txs/{hash}/pool_updates
  • /txs/{hash}/pool_retires

Fixed

• /pools trailing slash in documentation

[0.1.9] - 2021-04-04

Added

• /assets/{asset}/addresses lists of the addresses holding a specific asset
• /assets/policy/{policy_id} lists the assets minted under a specific policy

Changed

• tx_index in /addresses/{address}/utxos - it has been deprecated in favour of output_index
• / endpoint property version type number -> string

[0.1.8] - 2021-03-31

Added

• /ipfs/ endpoints for IPFS cluster

Changed

• /assets/{asset} specification of metadata to adhere to upstream

Fixed

• /tx/submit error handling (standardized error reply for 400)
• /assets/{asset} handling of metadata

[0.1.6] - 2021-03-19

Added

• /accounts/{account}/addresses which returns the list of on-chain addresses associated with a specific stake key
• 402 response to mark oversubscription (projects exceeded their daily subscription plan)

Changed

• /tx/submit endpoint, which now accepts CBOR encoded serialized transaction instead of a binary blob

Fixed

• functionality and description of rate limiting (429), oversubscription (402) and banning (418)

[0.1.5] - 2021-03-12

Added

• /assets/{asset}/txs endpoint to list all transactions of a given asset
• Owners to /txs/{hash}/pool_updates endpoint

Changed

• Altered functionality and description of active_epoch in /accounts/{stake_address} to better match its changed functionality. When account is deregistered (active field is false), this field contains the epoch number of deregistration
• reward_address -> reward_account in /pools/{pool_id} and /txs/{hash}/pool_updates endpoints as the previous name was misleading and incorrect
• Deprecated unit field of not yet used metadata in /assets/{asset} endpoint
• Descriptions of few fields

Fixed

• Multiple endpoints impacted by Cardano DB Sync issue. We have addressed associated issues with a temporary fix which will be in effect until the issue is addressed in the upstream. Please note that this mostly involved retired pools and their associated reward accounts. Affected endpoints and their parameters:
  • /pools/{pool_id}
    • live_stake
    • live_size
    • live_saturation
    • live_pledge
  • /pools/{pool_id}/delegators
    • live_stake
  • /accounts/{stake_address}
    • controlled_amount
    • withdrawable_amount
• Missing treasury in calculation of live_stake in /pools/{pool_id}/delegators endpoint. Other endpoints were not affected
• Pool hopping account issues which were causing that some pools were displaying slightly higher live_stake values and thus also very slightly skewed live_size and live_saturation calculations in /pools/{pool_id} endpoint
• active_epoch in /accounts/{stake_address} was previously displaying epoch of delegation, not epoch of de/registration

[0.1.4] - 2021-03-08

Fixed

• /txs/{hash} types of invalid_before and invalid_hereafter changed from integer to string as the value may overflow

[0.1.2] - 2021-03-05

Fixed

• /pools/retired and /pools/retiring are now sorted first by epoch and then tx_id as it was causing inconsistencies when pool announced its retirement way back in the past (in this case, the retired pool could be inserted in the middle of already retired pools)
• /pools was showing duplicate values in some special cases
• json_metadata type in tx_metadata_label_json OpenAPI scheme so it would correctly accept all values - thanks @sorki

Changed

• /pools endpoint now also includes retiring (not yet retired) pools
• All /addresses/{address} endpoints now also accept payment_cred in Bech32 format
• All /pools/{pool_id} endpoints now also accept pool_id in Hex format

[0.1.1] - 2021-02-26

Added

• New items to multiple /epochs endpoints
  • first_block_time - Marking first block of the epoch
  • last_block_time - Marking last block of the epoch
  • active_stake - Sum of all active stakes of the epoch
• Pagination for /metadata/txs/labels endpoint

Fixed

• Rename active_pledge → live_pledge in /pools/{pool_id}
• start_time and end_time now display correct values (previously first_block_time and last_block_time values were shown)
• Specification for tx_metadata_labels
• Unify pagination documentation

Changed

• Unify item names in /epochs/
  • blocks_count → block_count
  • txs_count → tx_count
  • txs_sum → output
  • fees_sum → fees
• Rename acronym → ticker in metadata of /assets/{asset}

[0.1.0] - 2021-02-23

Added

• Initial release