Casperlabs

Casperlabs (formerly known as Casper Network) is a public, permissionless blockchain platform focused on real‑world asset tokenization, enterprise‑grade smart contracts, and AI‑enabled tooling. It offers a Proof‑of‑Stake consensus, WebAssembly execution, and a suite of developer resources including SDKs, documentation, and an AI Toolkit. The ecosystem supports decentralized finance, NFTs, liquid staking, and quantum‑safe cryptography, targeting institutions, developers, and end‑users seeking secure, scalable blockchain solutions.

Casperlabs is listed with 4 APIs on the APIs.io network, including Casperlabs API, Metrics API, Status API, and 1 more. Tagged areas include Blockchain, Smart Contracts, Enterprise, AI-Toolkit, and Decentralized Finance.

The Casperlabs catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Casperlabs’ developer surface includes engineering blog, getting-started guide, documentation, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.1/100 emerging ▼ -9.5 Agent 18/100 agent aware Heartbeat 84/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

4 APIs

Blockchain Smart Contracts EnterpriseAI-ToolkitDecentralized Finance

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 24.1/100 · emerging

Contract Quality 4.7 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 4.9 / 17

Operational Transparency 0.6 / 11

Contract Governance 2.2 / 10

Discoverability 6.1 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 22.3 — up to +19.4 composite points
Developer Ergonomics scores 11.9 — up to +17.6 composite points
Access Clarity scores 28.6 — up to +14.3 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/casperlabs/apis.yml: open an issue on github.com/api-evangelist/casperlabs to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

Casper Developer API

API for Casper blockchain developers, providing endpoints for deploying contracts, querying state, and managing accounts.

Casperlabs Casperlabs API

The Casperlabs API API from Casperlabs — 1 operation(s) for casperlabs api.

Casperlabs Metrics API

The Metrics API from Casperlabs — 1 operation(s) for metrics.

Casperlabs Status API

The Status API from Casperlabs — 1 operation(s) for status.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Casperlabs Context

2 classes · 10 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Casperlabs API Rules

9 rules · 7 errors 1 warnings 1 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

GetResponse

10 properties

JSON SCHEMA

GetStatusResponse

10 properties

JSON SCHEMA

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Casperlabs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Roadmap

Roadmap

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Newsroom

Newsroom

Blog

Blog

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Leadership

Leadership

Source (apis.yml)

aid: casperlabs
name: Casperlabs
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/668fef77d8ac075ed5e3f57a/66900f439d0597692b64fcf2_Casper_Wordmark_Red_RGB.png
description: Casperlabs (formerly known as Casper Network) is a public, permissionless blockchain platform focused on real‑world
  asset tokenization, enterprise‑grade smart contracts, and AI‑enabled tooling. It offers a Proof‑of‑Stake consensus, WebAssembly
  execution, and a suite of developer resources including SDKs, documentation, and an AI Toolkit. The ecosystem supports decentralized
  finance, NFTs, liquid staking, and quantum‑safe cryptography, targeting institutions, developers, and end‑users seeking
  secure, scalable blockchain solutions.
url: https://raw.githubusercontent.com/api-evangelist/casperlabs/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-07'
modified: '2026-10-07'
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: aws-cloudfront
tags:
- Blockchain
- Smart Contracts
- Enterprise
- AI-Toolkit
- Decentralized Finance
tags_raw:
- Blockchain
- Smart-Contracts
- Enterprise
- AI-Toolkit
- Decentralized-Finance
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/casperlabs-rules.yml
- type: JSONLD
  url: json-ld/casperlabs-context.jsonld
- type: Vocabulary
  url: vocabulary/casperlabs-vocabulary.yml
- type: DataModel
  url: data-model/casperlabs-data-model.yml
- type: Conformance
  url: conformance/casperlabs-conformance.yml
- type: LLMsTxt
  url: llms/casperlabs-llms.txt
- type: Hosts
  url: hosts/casperlabs-hosts.yml
- type: Vendors
  url: vendors/casperlabs-vendors.yml
- type: TermsOfService
  url: https://www.casper.network/terms-of-use
- type: Roadmap
  url: https://www.casper.network/roadmap
- type: PrivacyPolicy
  url: https://www.casper.network/privacy-policy
- type: Newsroom
  url: https://www.casper.network/news
- type: Leadership
  url: https://www.casper.network/team
- type: GitHubOrganization
  url: https://github.com/casper-network
- type: Blog
  url: https://www.casper.network/blog
- type: GettingStarted
  url: http://docs.casper.network/condor/tags/setup
- type: Documentation
  url: https://developer.casper.network/
- type: DomainSecurity
  url: security/casperlabs-domain-security.yml
- type: Website
  url: https://www.casper.network
apis:
- name: Casper Developer API
  description: API for Casper blockchain developers, providing endpoints for deploying contracts, querying state, and managing
    accounts.
  humanURL: https://developer.casper.network
  baseURL: null
  aid: casperlabs:casper-developer-api
- aid: casperlabs:casperlabs-casperlabs-api-api
  name: Casperlabs Casperlabs API
  description: The Casperlabs API API from Casperlabs — 1 operation(s) for casperlabs api.
  humanURL: https://developer.casper.network
  baseURL: http://<node_address>:8888
  tags:
  - Casperlabs API
  properties:
  - type: OpenAPI
    url: openapi/casperlabs-casperlabs-api-api-openapi.yml
  - type: JSONSchema
    url: json-schema/casperlabs-get-status-response-schema.json
  - type: JSONSchema
    url: json-schema/casperlabs-get-response-schema.json
- aid: casperlabs:casperlabs-metrics-api
  name: Casperlabs Metrics API
  description: The Metrics API from Casperlabs — 1 operation(s) for metrics.
  humanURL: https://developer.casper.network
  baseURL: http://<node_address>:8888
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/casperlabs-metrics-api-openapi.yml
  - type: JSONSchema
    url: json-schema/casperlabs-get-status-response-schema.json
  - type: JSONSchema
    url: json-schema/casperlabs-get-response-schema.json
- aid: casperlabs:casperlabs-status-api
  name: Casperlabs Status API
  description: The Status API from Casperlabs — 1 operation(s) for status.
  humanURL: https://developer.casper.network
  baseURL: http://<node_address>:8888
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/casperlabs-status-api-openapi.yml
  - type: JSONSchema
    url: json-schema/casperlabs-get-status-response-schema.json
  - type: JSONSchema
    url: json-schema/casperlabs-get-response-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The developer portal serves only HTML pages with no OpenAPI or other machine‑readable contract.
  evidence:
  - url: https://developer.casper.network
    status: 200
  checked: '2026-10-07'
x-enrichment:
  date: '2026-10-07'
  status: enriched
  artifacts_added: 15
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Casperlabs API — frequently asked questions

Does Casperlabs have an API?

Yes. APIs.io lists 4 APIs from Casperlabs, including Casper Developer API, Casperlabs Casperlabs API and Casperlabs Metrics API, and 1 more.

Is there an OpenAPI specification for the Casperlabs API?

Yes. APIs.io indexes 3 OpenAPI specifications for Casperlabs, each linked for download from this page.

Is the Casperlabs API ready for AI agents?

Casperlabs has a Kin Score of 24.1 out of 100 (emerging) and an Agent Readiness score of 17.9 (agent-aware), scored by API Evangelist on 2026-11-06.

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