How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
Kusama

Kusama runtime API

The runtime API from Kusama — 5 operation(s) for runtime.

Documentation Provider Profile APIs.io OpenAPI GitHub

Kusama runtime API is one of 21 APIs that Kusama publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Runtime. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 5 operations across 5 paths, and defines 5 schemas. It is described by OpenAPI 3.2.0, at version 20.14.1.

Requests are made against 5 base URLs: https://polkadot-public-sidecar.parity-chains.parity.io/, https://kusama-public-sidecar.parity-chains.parity.io/, https://polkadot-asset-hub-public-sidecar.parity-chains.parity.io/, https://kusama-asset-hub-public-sidecar.parity-chains.parity.io/, http://localhost:8080.

5 operations 5 paths 5 schemas 5 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
20.14.1
Base URL
https://kusama-rpc.polkadot.io/
Contact
https://github.com/paritytech/substrate-api-sidecar
License
GPL-3.0-or-later
Resource Areas
1

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 5 GET. Each is listed below with its method, path, parameters, and response codes.

runtime 5
GET
/runtime/metadata
Get the runtime metadata in decoded, JSON form.
1 param → 200
GET
/runtime/metadata/{metadataVersion}
Get the requested version of runtime metadata in decoded, JSON form.
2 params → 200
GET
/runtime/metadata/versions
Get the available versions of runtime metadata.
1 param → 200
GET
/runtime/code
Get the runtime wasm blob.
1 param → 200
GET
/runtime/spec
Get version information of the Substrate runtime.
1 param → 200

Schemas 5

The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are RuntimeSpec (8 properties), ChainType (4 properties), RuntimeCode (2 properties), BlockIdentifiers (2 properties). Each schema is shown below with its type and property counts.

RuntimeMetadata
object
Substrate runtime metadata containing pallet information, types registry, and API specifications. The structure varies significantly between different runtime…
2 properties 2 required
RuntimeSpec
object
Version information related to the runtime.
8 properties
BlockIdentifiers
object
2 properties
RuntimeCode
object
2 properties
ChainType
object
Type of the chain. It will return one of the following enum variants as a key. Live, Development, Local, or Custom. Each variant will have a value as null exce…
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kusama-runtime-api-openapi.yml Raw ↑

Other APIs Kusama publishes across the network.

Kusama JSON-RPC API
AE Profile APIs.io
Kusama accounts API
AE Profile APIs.io
Kusama ahm API
AE Profile APIs.io
Kusama blocks API
AE Profile APIs.io
Kusama contracts API
AE Profile APIs.io
Kusama coretime API
AE Profile APIs.io
Kusama node API
AE Profile APIs.io
Kusama pallets API
AE Profile APIs.io
Kusama paras API
AE Profile APIs.io
Kusama rc accounts API
AE Profile APIs.io
Kusama rc API
AE Profile APIs.io
Kusama rc blocks API
AE Profile APIs.io
#Runtime
← Back to K APIs
API Details
ID
kusama:kusama-runtime-api
Base URL
https://kusama-rpc.polkadot.io/
Docs
https://paritytech.github.io/json-rpc-interface-spec/
Provider
Kusama
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=kusama-runtime-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/kusama-runtime-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of Kusama runtime 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.