/runtime/metadata/{metadataVersion} REST API Endpoint
Path Parameters
metadataVersion
string
REQUIRED
The version of metadata. The input is expected in a `vX` format, where `X` represents the version number (e.g. `v14`, `v15`).
Query Parameters
at
string
Block at which to retrieve the metadata at.
Returns
magicNumber
string
A unique identifier for the metadata format version
metadata
object
The metadata object which contains the following fields:
v14
object
The v14 object which contains the following fields:
lookup
object
Provides a mapping and definition of types used within the runtime
types
array
A list of types defining the data structures used in the blockchain
id
string
Identifier for the specific type
type
object
Describes the type's structure and attributes
path
string
Specifies the module path to the type
params
array
Lists any parameters associated with the type
def
object
The def object which contains the following fields:
composite
object
The composite object which contains the following fields:
fields
array
Describes the individual fields within the composite type
name
string
The name of the field
type
string
The type identifier of the field
typeName
string
The human-readable name of the field's type
docs
array
The documentation or comments about the field
docs
array
The documentation or comments about the type
pallets
array
Lists the runtime modules (pallets) and their associated components
name
string
The name of the pallet
storage
object
The storage object which contains the following fields:
prefix
string
The prefix used for storage items in this pallet
items
array
Lists the storage items within the pallet
name
string
The name of the storage item
modifier
string
Specifies the modifier type
type
object
The type object which contains the following fields:
map
object
The map object which contains the following fields:
hashers
string
List of hash functions used for the key
key
string
The type identifier for the key
value
string
The type identifier for the value
fallback
string
Default value used when no value is stored
docs
string
Documentation or comments about the storage item
calls
object
Describes the callable functions provided by the pallet
type
string
The type identifier for the calls
events
object
Describes the events emitted by the pallet
type
string
The type identifier for the events
constants
array
Lists the constant values defined within the pallet
name
string
The name of the constant
type
string
The type identifier for the constant
value
object
The value object which contains the following fields:
baseBlock
object
The baseBlock object which contains the following fields:
refTime
string
The reference time for the base block
proofSize
string
The size of the proof for the base block
maxBlock
object
The maxBlock object which contains the following fields:
refTime
string
The reference time for the maximum block
proofSize
string
The size of the proof for the maximum block.
perClass
object
The perClass object which contains the following fields:
normal
object
The normal object which contains the following fields:
baseExtrinsic
object
The baseExtrinsic object which contains the following fields:
refTime
string
The reference time for the base extrinsic
proofSize
string
The proof size for the base extrinsic
maxExtrinsic
object
The maxExtrinsic object which contains the following fields:
refTime
string
The reference time for the maximum extrinsic
proofSize
string
The proof size for the maximum total
maxTotal
object
The maxTotal object which contains the following fields:
refTime
string
The reference time for the maximum total
proofSize
string
The proof size for the maximum total
reserved
object
The reserved object which contains the following fields:
refTime
string
The reference time for the reserved total
proofSize
string
The proof size for the reserved total
operational
object
The operational object which contains the following fields:
baseExtrinsic
object
The baseExtrinsic object which contains the following fields:
refTime
string
The reference time for the baseExtrinsic total
proofSize
string
The proof size for the baseExtrinsic total
maxExtrinsic
object
The maxExtrinsic object which contains the following fields:
refTime
string
The reference time for the maxExtrinsic total
proofSize
string
The proof size for the maxExtrinsic total
maxTotal
object
The maxTotal object which contains the following fields:
refTime
string
The reference time for the maxTotal
proofSize
string
The proof size for the maxTotal
reserved
object
The reserved object which contains the following fields:
refTime
string
The reference time for the reserved total
proofSize
string
The proof size for the reserved total
mandatory
object
The mandatory object which contains the following fields:
baseExtrinsic
object
The baseExtrinsic object which contains the following fields:
refTime
string
The reference time for the baseExtrinsic total
proofSize
string
The proof size for the baseExtrinsic total
maxExtrinsic
object
The maxExtrinsic object which contains the following fields:
refTime
string
The reference time for the maxExtrinsic total
proofSize
string
The proof size for the maxExtrinsic total
maxTotal
object
The maxTotal object which contains the following fields:
refTime
string
The reference time for the maxTotal
proofSize
string
The proof size for the maxTotal
reserved
object
The reserved object which contains the following fields:
refTime
string
The reference time for the reserved total
proofSize
string
The proof size for the reserved total
docs
string
Documentation or comments about the constant
errors
object
The errors object which contains the following fields:
type
string
The type identifier for the errors
index
string
The index or identifier of the pallet within the runtime
extrinsic
object
The extrinsic object which contains the following fields:
type
string
The type identifier for the extrinsics
version
string
The version of the extrinsic format
signedExtensions
array
Lists additional checks or data required for signed extrinsics
identifier
string
The name of the signed extension
type
string
The type identifier for the signed extension
additionalSigned
string
Additional data required by the signed extension
type
string
The type identifier for the metadata structure
Request
1curl --location 'https://docs-demo.dot-mainnet.quiknode.pro/runtime/metadata/v14' \2--header 'Accept: application/json'
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