SIMBA Chain

SIMBA Chain is a South Bend, Indiana enterprise data company spun out of the University of Notre Dame under U.S. Department of Defense research funding. Its platform — marketed today as SIMBA Trace and built on the SIMBA Blocks / Build / Ensure / Insights product suite — turns products, components, assets, credentials and organizations into tamper-evident, cryptographically sealed records on permissioned blockchains (Ethereum, Hyperledger Fabric, Polygon, Quorum) for supply-chain visibility, traceability, digital thread and EU Digital Product Passport compliance. Developers deploy Solidity or Chaincode smart contracts through SIMBA Build, which auto-generates a REST API (OpenAPI + SwaggerUI) per application, plus a GraphQL query surface, event/notification subscriptions, and DID/Verifiable Credential issuance through SIMBA Ensure. Customers include the U.S. Air Force, Boeing, the Defense Logistics Agency and the Australian Defence Force.

SIMBA Chain publishes 2 APIs on the APIs.io network: SIMBA Blocks Member Service API and SIMBA Blocks Authentication Service API. Tagged areas include Company, Blockchain, Supply Chain, Traceability, and Digital Product Passport.

The SIMBA Chain catalog on APIs.io includes 1 event-driven AsyncAPI specification.

SIMBA Chain’s developer surface includes documentation, API reference, getting-started guide, quickstart, support, engineering blog, changelog, and 26 more developer resources.

🌐 Visit website 📡 Source on GitHub
54.3/100 strong ▬ flat Agent 43/100 agent ready saas Full breakdown ↓
scored 2026-09-01 · rubric v0.17.2
4 APIs 1 MCP Servers
CompanyBlockchainSupply ChainTraceabilityDigital Product PassportSmart ContractsIdentityVerifiable CredentialsDefenseGovernmentData Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-01 · rubric v0.17.2
Composite quality — 54.3/100 · strong
Contract Quality 10.9 / 21
Developer Ergonomics 13.4 / 17
Access Clarity 4.7 / 17
Operational Transparency 2.9 / 11
Contract Governance 1.9 / 10
Discoverability 6.9 / 9
Regulatory Posture 9.7 / 15
Agent readiness — 43/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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.
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/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/simba-chain: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

SIMBA Blocks Member Service API

The organization, user, role, permission and API-credential control plane behind SIMBA Build. Creates and manages organisations, domains, invites, org-scoped and custom system r...

SIMBA Blocks Authentication Service API

SIMBA's OAuth 2.0 / OpenID Connect authorization server and token validator (the "member service validator"). Publishes an OIDC discovery document and a JWKS, issues tokens over...

SIMBA Blocks Platform Service (Dynamic Contract API)

The SIMBA Build dynamic API generator. When a smart contract is deployed into an application, Blocks auto-generates REST endpoints for every method and public variable of that c...

SIMBA Blocks Documentation MCP Server

A live, unauthenticated remote Model Context Protocol server published on SIMBA's own documentation host. tools/list returns four tools — searchDocumentation, getPage, askQuesti...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

SIMBA Chain MCP Server

SIMBA Chain serves a live, anonymous, remote MCP endpoint from its own documentation host. It is a DOCUMENTATION server, not a platform-control server: the four tools search, fe...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Simba Chain Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Simba Chain Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Simba Chain Subscriptions Webhooks

ASYNCAPI

Security Posture 2

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

Simba Chain Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Simba Chain Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Simba Chain Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Quickstart
Quickstart
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Webhooks
Webhooks

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs
 CLI
CLI
 ToolCrosswalk
ToolCrosswalk

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 4

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog
 ChangeLog
ChangeLog
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: simba-chain
name: SIMBA Chain
description: SIMBA Chain is a South Bend, Indiana enterprise data company spun out of the University of Notre Dame under U.S.
  Department of Defense research funding. Its platform — marketed today as SIMBA Trace and built on the SIMBA Blocks / Build
  / Ensure / Insights product suite — turns products, components, assets, credentials and organizations into tamper-evident,
  cryptographically sealed records on permissioned blockchains (Ethereum, Hyperledger Fabric, Polygon, Quorum) for supply-chain
  visibility, traceability, digital thread and EU Digital Product Passport compliance. Developers deploy Solidity or Chaincode
  smart contracts through SIMBA Build, which auto-generates a REST API (OpenAPI + SwaggerUI) per application, plus a GraphQL
  query surface, event/notification subscriptions, and DID/Verifiable Credential issuance through SIMBA Ensure. Customers
  include the U.S. Air Force, Boeing, the Defense Logistics Agency and the Australian Defence Force.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
image: https://simbachain.com/wp-content/uploads/2024/01/SIMBA-Chain-logo.svg
url: https://raw.githubusercontent.com/api-evangelist/simba-chain/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-27'
modified: '2026-08-27'
tags:
- Company
- Blockchain
- Supply Chain
- Traceability
- Digital Product Passport
- Smart Contracts
- Identity
- Verifiable Credentials
- Defense
- Government
- Data Management
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: simba-chain:simba-chain-member-service-api
  name: SIMBA Blocks Member Service API
  description: The organization, user, role, permission and API-credential control plane behind SIMBA Build. Creates and manages
    organisations, domains, invites, org-scoped and custom system roles, bulk user imports, device apps and registrations,
    notification templates, passkeys and TOTP two-factor enrolment, and the client_id / client_secret pairs the SIMBA SDKs
    authenticate with. OpenAPI 3.1.0, 106 operations across 74 paths, served publicly (unauthenticated spec, OAuth2-protected
    operations) from SIMBA's own hosted Blocks instance.
  humanURL: https://docs.simbachain.com/documentation/simba-build/managing-an-organization
  baseURL: https://blocks.simbachain.com/api/member-service
  tags:
  - Identity
  - Organization
  - User
  - Roles
  - Permissions
  - Credentials
  tags_raw:
  - Identity
  - Organizations
  - Users
  - Roles
  - Permissions
  - Credentials
  properties:
  - type: OpenAPI
    url: openapi/simba-chain-member-service-openapi.json
  - type: Overlay
    url: overlays/simba-chain-member-service-overlay.yaml
  - type: Documentation
    url: https://docs.simbachain.com/documentation/api-reference/api-reference
  - type: APIReference
    url: https://blocks.simbachain.com/api/member-service/docs
  - type: ErrorCatalog
    url: errors/simba-chain-problem-types.yml
  - type: DataModel
    url: data-model/simba-chain-data-model.yml
- aid: simba-chain:simba-chain-authentication-api
  name: SIMBA Blocks Authentication Service API
  description: SIMBA's OAuth 2.0 / OpenID Connect authorization server and token validator (the "member service validator").
    Publishes an OIDC discovery document and a JWKS, issues tokens over the authorization_code, refresh_token and client_credentials
    grants with PKCE S256, validates external tokens for downstream services, and exposes a Verifiable-Presentation challenge
    endpoint (/oauth/vc-secure-session) that binds a W3C DID to a session with an optional DPoP proof header. OpenAPI 3.1.0,
    22 operations across 15 paths.
  humanURL: https://docs.simbachain.com/documentation/getting-started/obtaining-api-keys
  baseURL: https://blocks.simbachain.com/api/member-service-validator
  tags:
  - Authentication
  - OpenID Connect
  - Verifiable Credentials
  - Decentralized Identifiers
  tags_raw:
  - Authentication
  - OAuth
  - OpenID Connect
  - Verifiable Credentials
  - Decentralized Identifiers
  properties:
  - type: OpenAPI
    url: openapi/simba-chain-member-service-validator-openapi.json
  - type: Overlay
    url: overlays/simba-chain-member-service-validator-overlay.yaml
  - type: OpenIDConnectDiscovery
    url: well-known/simba-chain-openid-configuration.json
  - type: JWKS
    url: well-known/simba-chain-jwks.json
  - type: OAuthScopes
    url: scopes/simba-chain-scopes.yml
  - type: Documentation
    url: https://docs.simbachain.com/documentation/getting-started/obtaining-api-keys
  - type: APIReference
    url: https://blocks.simbachain.com/api/member-service-validator/docs
- aid: simba-chain:simba-chain-platform-service-api
  name: SIMBA Blocks Platform Service (Dynamic Contract API)
  description: 'The SIMBA Build dynamic API generator. When a smart contract is deployed into an application, Blocks auto-generates
    REST endpoints for every method and public variable of that contract — POST to invoke, GET to query prior invocations
    — under /v2/apps/{application}/contract/{contract_name}/{method_name}/, with a per-application OpenAPI definition and
    SwaggerUI rendered from the application''s overview page. Also carries wallet/account creation, file bundles (_bundleHash),
    off-chain storage, transaction validation and the subscription/notification surface. Because the contract shape is generated
    per deployed application, there is no single tenant-independent published OpenAPI; the generated definition is reachable
    only inside an authenticated application. Probed anonymously 2026-08-27: HTTP 401 {"detail":"missing-auth-header"}.'
  humanURL: https://docs.simbachain.com/documentation/getting-started/dynamic-api-generator
  baseURL: https://blocks.simbachain.com/api/platform-service
  tags:
  - Blockchain
  - Smart Contracts
  - Traceability
  - Webhook
  tags_raw:
  - Blockchain
  - Smart Contracts
  - Traceability
  - Webhooks
  properties:
  - type: Documentation
    url: https://docs.simbachain.com/documentation/api-reference/api-reference
  - type: GettingStarted
    url: https://docs.simbachain.com/documentation/getting-started/quickstart-guides/api-quickstart
  - type: Webhooks
    url: asyncapi/simba-chain-subscriptions-webhooks.yml
  - type: ErrorCatalog
    url: errors/simba-chain-problem-types.yml
- aid: simba-chain:simba-chain-documentation-mcp
  name: SIMBA Blocks Documentation MCP Server
  description: A live, unauthenticated remote Model Context Protocol server published on SIMBA's own documentation host. tools/list
    returns four tools — searchDocumentation, getPage, askQuestion and sendFeedback — that let an agent search, read and ask
    questions of the SIMBA Blocks documentation. Provided by the GitBook documentation platform SIMBA publishes on, and served
    from docs.simbachain.com.
  humanURL: https://docs.simbachain.com/documentation
  baseURL: https://docs.simbachain.com/documentation/~gitbook/mcp
  tags:
  - MCP
  - Documentation
  - Agents
  properties:
  - type: MCPServer
    url: mcp/simba-chain-mcp.yml
  - type: ToolCrosswalk
    url: mcp/simba-chain-tool-crosswalk.yml
common:
- type: DomainSecurity
  url: security/simba-chain-domain-security.yml
- type: Website
  url: https://simbachain.com/
- type: DeveloperPortal
  url: https://docs.simbachain.com/documentation
- type: Documentation
  url: https://docs.simbachain.com/documentation
- type: APIReference
  url: https://docs.simbachain.com/documentation/api-reference/api-reference
- type: GettingStarted
  url: https://docs.simbachain.com/documentation/getting-started/quickstart-guides/api-quickstart
- type: Quickstart
  url: https://docs.simbachain.com/documentation/getting-started/quickstart-guides
- type: Login
  url: https://blocks.simbachain.com/
- type: Support
  url: https://simbachain.com/contact/
- type: Blog
  url: https://simbachain.com/news/
- type: GitHubOrganization
  url: https://github.com/SIMBAChain
- type: TermsOfService
  url: https://simbachain.com/terms-and-conditions/
- type: PrivacyPolicy
  url: https://simbachain.com/privacy/
- type: ChangeLog
  url: https://docs.simbachain.com/documentation/release-notes/release-notes
- type: LLMsTxt
  url: llms/simba-chain-llms.txt
- type: Packages
  url: packages/simba-chain-packages.yml
- type: SDKs
  url: packages/simba-chain-packages.yml
- type: CLI
  url: cli/simba-chain-cli.yml
- type: MCPServer
  url: mcp/simba-chain-mcp.yml
- type: ToolCrosswalk
  url: mcp/simba-chain-tool-crosswalk.yml
- type: WellKnown
  url: well-known/simba-chain-well-known.yml
- type: Authentication
  url: authentication/simba-chain-authentication.yml
- type: OAuthScopes
  url: scopes/simba-chain-scopes.yml
- type: Conventions
  url: conventions/simba-chain-conventions.yml
- type: Conformance
  url: conformance/simba-chain-conformance.yml
- type: ErrorCatalog
  url: errors/simba-chain-problem-types.yml
- type: Lifecycle
  url: lifecycle/simba-chain-lifecycle.yml
- type: ChangeLog
  url: changelog/simba-chain-changelog.yml
- type: DataModel
  url: data-model/simba-chain-data-model.yml
- type: Webhooks
  url: asyncapi/simba-chain-subscriptions-webhooks.yml
- type: Plans
  url: plans/simba-chain-plans-pricing.yml
- type: RateLimits
  url: rate-limits/simba-chain-rate-limits.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-27'
  status: enriched
  artifacts_added: 31
  pass: local-v1

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