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Polkadot Extrinsic API

The Extrinsic API from Polkadot — 6 operation(s) for extrinsic.

Polkadot Extrinsic API is one of 57 APIs that Polkadot publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Extrinsic. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, rate-limit docs, and a GitHub repository.

This API exposes 6 operations across 6 paths, and defines 28 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://https://www.subscan.io/.

6 operations 6 paths 28 schemas 6 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://polkadot.api.subscan.io
License
Terms of Service
Resource Areas
1

Paths & Operations 6

Across 6 paths, the API surfaces 6 operations — 6 POST. Each is listed below with its method, path, parameters, and response codes.

Extrinsic 6
POST
/api/scan/extrinsic
Get extrinsic details
body → 200
POST
/api/scan/extrinsic/params
Get extrinsic parameters
body → 200
POST
/api/scan/extrinsic/reward
List extrinsic reward records
body → 200
POST
/api/scan/getRawTx
Get raw extrinsic transaction
body → 200
POST
/api/scan/pendingExtrinsics
List pending extrinsics
→ 200
POST
/api/v2/scan/extrinsics
List extrinsics
body → 200

Schemas 28

The contract defines 28 schemas that model the data the API accepts and returns. The most detailed are subscan_internal_model.ExtrinsicDetail (27 properties), subscan_internal_model.ChainExtrinsicJson (17 properties), subscan_internal_model.ChainExtrinsicV2Json (15 properties), internal_server_http.extrinsicsParams (13 properties). Each schema is shown below with its type and property counts.

subscan_internal_model.ChainExtrinsicJson
object
17 properties
subscan_internal_model.ExtrinsicRewardJson
object
2 properties
subscan_internal_model.MerkleTag
object
4 properties
subscan_internal_model.MultiAction
string
internal_server_http.J
object
4 properties
internal_server_http.ExtrinsicDetailParams
object
4 properties
subscan_libs_substrate.MetadataModuleError
object
4 properties
subscan_internal_model.AccountParentJson
object
4 properties
subscan_internal_model.TransferJson
object
8 properties
subscan_internal_model.AccountDisplay
object
10 properties
subscan_internal_model.ExtrinsicAssetFee
object
5 properties
internal_server_http.extrinsicRewardParams
object
3 properties 1 required
subscan_internal_model.ChainExtrinsicParams
object
2 properties
subscan_internal_model.RegistrationJudgementJson
object
2 properties
internal_server_http.extrinsicParamsParams
object
1 property 1 required
subscan_internal_model.ChainExtrinsicV2Json
object
15 properties
subscan_internal_model.ExtrinsicParam
object
4 properties
subscan_internal_model.ExtrinsicDetail
object
27 properties
subscan_internal_model.EvmAccountDisplay
object
2 properties
subscan_internal_model.ExtrinsicError
object
6 properties
internal_server_http.rawTxParams
object
2 properties
subscan_internal_model.ChainEventJson
object
11 properties
internal_server_http.moduleCallFilterParams
object
2 properties
subscan_internal_model.SampleIdentity
object
4 properties
subscan_internal_model.ExtrinsicSubCallJson
object
8 properties
internal_server_http.extrinsicsParams
object
13 properties
subscan_internal_model.MultisigJson
object
10 properties
subscan_internal_model.Lifetime
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

polkadot-extrinsic-api-openapi.yml Raw ↑

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Polkadot capabilities API
Polkadot Collator API
Polkadot Common API
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Where this information came from

This is an independent, third-party profile of Polkadot Extrinsic API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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