SEDNA

SEDNA is the operating system for shipping — a communications and workflow platform that unifies email, voyage and trade operations, and document handling for maritime, commodity trading and logistics teams. Its API (version 2019-01-01) exposes messages, contacts, teams, users, job references, category tags, events and workflows over a JSON:API-style REST interface secured with OAuth 2.0 client-credentials, letting developers automate inbox routing, tagging, subscriptions and third-party integrations. Backed by Insight Partners.

SEDNA publishes 17 API contracts indexed on the APIs.io network, including Authentication API, Category Tag API, Comment API, and 14 more. Tagged areas include Company, Shipping, Maritime, Email, and Communications.

The SEDNA catalog on APIs.io includes 1 Spectral governance ruleset.

SEDNA’s developer surface includes documentation, API reference, support, engineering blog, authentication, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

44.3/100 developing ▬ flat Agent 36/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 3 Agent Skills

Company Shipping Maritime Email Communications Workflows Commodity Trading Logistics Messaging

Kin Score

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

Composite quality — 44.3/100 · developing

Contract Quality 8.9 / 19

Developer Ergonomics 7.1 / 15

Access Clarity 4.3 / 15

Operational Transparency 2.3 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 5.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 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 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/sedna/"><img src="https://apis.io/badge/sedna/card.svg" alt="SEDNA on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 28.9 — up to +14.2 composite points
Contract Quality scores 47.3 — up to +13.2 composite points
Developer Ergonomics scores 47.0 — up to +10.6 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/sedna/apis.yml: open an issue on github.com/api-evangelist/sedna 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Maritime Logistics (ocean shipping, eBL, ports)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 3

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 17

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

SEDNA Authentication API

The Authentication API from SEDNA — 1 operation(s) for authentication.

SEDNA Category Tag API

The Category Tag API API from SEDNA — 7 operation(s) for category tag api.

SEDNA Comment API

The Comment API API from SEDNA — 1 operation(s) for comment api.

SEDNA Company API

The Company API API from SEDNA — 1 operation(s) for company api.

SEDNA Contact API

The Contact API API from SEDNA — 8 operation(s) for contact api.

SEDNA Document API

The Document API API from SEDNA — 1 operation(s) for document api.

SEDNA Download API

The Download API API from SEDNA — 4 operation(s) for download api.

SEDNA Event API

The Event API API from SEDNA — 9 operation(s) for event api.

SEDNA Job Reference API

The Job Reference API API from SEDNA — 7 operation(s) for job reference api.

SEDNA Keyword API

The Keyword API API from SEDNA — 3 operation(s) for keyword api.

SEDNA Message API

The Message API API from SEDNA — 19 operation(s) for message api.

SEDNA Saved Search API

The Saved Search API API from SEDNA — 2 operation(s) for saved search api.

SEDNA Team API

The Team API API from SEDNA — 9 operation(s) for team api.

SEDNA Template API

The Template API API from SEDNA — 2 operation(s) for template api.

SEDNA User API

The User API API from SEDNA — 16 operation(s) for user api.

SEDNA Vessel API

The Vessel API API from SEDNA — 1 operation(s) for vessel api.

SEDNA Workflow API

The Workflow API API from SEDNA — 2 operation(s) for workflow api.

Scroll for all 17

Open Collections 17

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Sedna Authentication API

OPEN COLLECTION

Sedna Authentication Category Tag API API

OPEN COLLECTION

Sedna Authentication Comment API API

OPEN COLLECTION

Sedna Authentication Company API API

OPEN COLLECTION

Sedna Authentication Contact API API

OPEN COLLECTION

Sedna Authentication Document API API

OPEN COLLECTION

Sedna Authentication Download API API

OPEN COLLECTION

Sedna Authentication Event API API

OPEN COLLECTION

Sedna Authentication Job Reference API API

OPEN COLLECTION

Sedna Authentication Keyword API API

OPEN COLLECTION

Sedna Authentication Message API API

OPEN COLLECTION

Sedna Authentication Saved Search API API

OPEN COLLECTION

Sedna Authentication Team API API

OPEN COLLECTION

Sedna Authentication Template API API

OPEN COLLECTION

Sedna Authentication User API API

OPEN COLLECTION

Sedna Authentication Vessel API API

OPEN COLLECTION

Sedna Authentication Workflow API API

OPEN COLLECTION

Scroll for all 17

MCP Servers 1

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

SEDNA MCP Server

Remote MCP server at developers.sedna.com over HTTP.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Poll the event stream

AGENT SKILL

Send an email message

AGENT SKILL

Tag and route a message to a job

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SEDNA API Rules

59 rules · 48 errors 10 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Sedna Openapi Overlay

2 actions · update · sedna-openapi.json

DERIVED

Security Posture 2

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

Sedna Authentication

http/oauth2 · 2 schemes

SECURITY

Sedna Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sedna Scopes

53 scopes · clientCredentials

53 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Sedna Agentic Access

162 operations · 81 acting · 4 human-in-the-loop

162 operations · 81 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

WellKnown

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Access & Security 4

Authentication, authorization, and security posture

Authentication

OAuthScopes

Compliance

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Deprecation

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: sedna
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sedna.png
name: SEDNA
description: SEDNA is the operating system for shipping — a communications and workflow platform that unifies email, voyage
  and trade operations, and document handling for maritime, commodity trading and logistics teams. Its API (version 2019-01-01)
  exposes messages, contacts, teams, users, job references, category tags, events and workflows over a JSON:API-style REST
  interface secured with OAuth 2.0 client-credentials, letting developers automate inbox routing, tagging, subscriptions and
  third-party integrations. Backed by Insight Partners.
url: https://raw.githubusercontent.com/api-evangelist/sedna/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Shipping
- Maritime
- Email
- Communications
- Workflows
- Commodity Trading
- Logistics
- Messaging
tags_raw:
- Company
- Shipping
- Maritime
- Email
- Communications
- Workflow
- Commodity Trading
- Logistics
- Messaging
apis:
- aid: sedna:sedna-authentication-api
  name: SEDNA Authentication API
  description: The Authentication API from SEDNA — 1 operation(s) for authentication.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/sedna-authentication-api-openapi.yml
- aid: sedna:sedna-category-tag-api-api
  name: SEDNA Category Tag API
  description: The Category Tag API API from SEDNA — 7 operation(s) for category tag api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Category Tag API
  properties:
  - type: OpenAPI
    url: openapi/sedna-category-tag-api-api-openapi.yml
- aid: sedna:sedna-comment-api-api
  name: SEDNA Comment API
  description: The Comment API API from SEDNA — 1 operation(s) for comment api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Comment API
  properties:
  - type: OpenAPI
    url: openapi/sedna-comment-api-api-openapi.yml
- aid: sedna:sedna-company-api-api
  name: SEDNA Company API
  description: The Company API API from SEDNA — 1 operation(s) for company api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Company API
  properties:
  - type: OpenAPI
    url: openapi/sedna-company-api-api-openapi.yml
- aid: sedna:sedna-contact-api-api
  name: SEDNA Contact API
  description: The Contact API API from SEDNA — 8 operation(s) for contact api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags: []
  tags_raw:
  - Contact API
  properties:
  - type: OpenAPI
    url: openapi/sedna-contact-api-api-openapi.yml
- aid: sedna:sedna-document-api-api
  name: SEDNA Document API
  description: The Document API API from SEDNA — 1 operation(s) for document api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Document-Api
  tags_raw:
  - Document API
  properties:
  - type: OpenAPI
    url: openapi/sedna-document-api-api-openapi.yml
- aid: sedna:sedna-download-api-api
  name: SEDNA Download API
  description: The Download API API from SEDNA — 4 operation(s) for download api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Download API
  properties:
  - type: OpenAPI
    url: openapi/sedna-download-api-api-openapi.yml
- aid: sedna:sedna-event-api-api
  name: SEDNA Event API
  description: The Event API API from SEDNA — 9 operation(s) for event api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Event API
  properties:
  - type: OpenAPI
    url: openapi/sedna-event-api-api-openapi.yml
- aid: sedna:sedna-job-reference-api-api
  name: SEDNA Job Reference API
  description: The Job Reference API API from SEDNA — 7 operation(s) for job reference api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Job Reference API
  properties:
  - type: OpenAPI
    url: openapi/sedna-job-reference-api-api-openapi.yml
- aid: sedna:sedna-keyword-api-api
  name: SEDNA Keyword API
  description: The Keyword API API from SEDNA — 3 operation(s) for keyword api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Keyword API
  properties:
  - type: OpenAPI
    url: openapi/sedna-keyword-api-api-openapi.yml
- aid: sedna:sedna-message-api-api
  name: SEDNA Message API
  description: The Message API API from SEDNA — 19 operation(s) for message api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Message API
  properties:
  - type: OpenAPI
    url: openapi/sedna-message-api-api-openapi.yml
- aid: sedna:sedna-saved-search-api-api
  name: SEDNA Saved Search API
  description: The Saved Search API API from SEDNA — 2 operation(s) for saved search api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Saved Search API
  properties:
  - type: OpenAPI
    url: openapi/sedna-saved-search-api-api-openapi.yml
- aid: sedna:sedna-team-api-api
  name: SEDNA Team API
  description: The Team API API from SEDNA — 9 operation(s) for team api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Team API
  properties:
  - type: OpenAPI
    url: openapi/sedna-team-api-api-openapi.yml
- aid: sedna:sedna-template-api-api
  name: SEDNA Template API
  description: The Template API API from SEDNA — 2 operation(s) for template api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Template API
  properties:
  - type: OpenAPI
    url: openapi/sedna-template-api-api-openapi.yml
- aid: sedna:sedna-user-api-api
  name: SEDNA User API
  description: The User API API from SEDNA — 16 operation(s) for user api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - User API
  properties:
  - type: OpenAPI
    url: openapi/sedna-user-api-api-openapi.yml
- aid: sedna:sedna-vessel-api-api
  name: SEDNA Vessel API
  description: The Vessel API API from SEDNA — 1 operation(s) for vessel api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Vessel API
  properties:
  - type: OpenAPI
    url: openapi/sedna-vessel-api-api-openapi.yml
- aid: sedna:sedna-workflow-api-api
  name: SEDNA Workflow API
  description: The Workflow API API from SEDNA — 2 operation(s) for workflow api.
  humanURL: https://developers.sedna.com/reference
  baseURL: https://example.sednanetwork.com/platform
  tags:
  - Workflow API
  properties:
  - type: OpenAPI
    url: openapi/sedna-workflow-api-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/sedna-openapi-overlay.yaml
- type: DeveloperPortal
  url: https://developers.sedna.com/
- type: Documentation
  url: https://developers.sedna.com/
- type: APIReference
  url: https://developers.sedna.com/reference
- type: Support
  url: https://support.sedna.com/hc/en-us
- type: Blog
  url: https://sedna.com/blog
- type: TermsOfService
  url: https://www.sedna.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.sedna.com/legal
- type: StatusPage
  url: https://status.sedna.com
- type: Authentication
  url: authentication/sedna-authentication.yml
- type: OAuthScopes
  url: scopes/sedna-scopes.yml
- type: MCPServer
  url: mcp/sedna-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/sedna-llms.txt
- type: ErrorCatalog
  url: errors/sedna-problem-types.yml
- type: Conventions
  url: conventions/sedna-conventions.yml
- type: Lifecycle
  url: lifecycle/sedna-lifecycle.yml
- type: Deprecation
  url: lifecycle/sedna-lifecycle.yml
- type: Conformance
  url: conformance/sedna-conformance.yml
- type: Compliance
  url: conformance/sedna-conformance.yml
- type: DataModel
  url: data-model/sedna-data-model.yml
- type: WellKnown
  url: well-known/sedna-well-known.yml
- type: AgenticAccess
  url: agentic-access/sedna-agentic-access.yml
- type: DomainSecurity
  url: security/sedna-domain-security.yml
- type: Website
  url: https://sedna.com/
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1

SEDNA API — frequently asked questions

Does SEDNA have an API?

Yes. APIs.io lists 17 APIs from SEDNA, including SEDNA Authentication API, SEDNA Category Tag API and SEDNA Comment API, and 14 more.

Is there an OpenAPI specification for the SEDNA API?

Yes. APIs.io indexes 17 OpenAPI specifications for SEDNA, each linked for download from this page.

How do I authenticate with the SEDNA API?

SEDNA documents its authentication (http/oauth2 · 2 schemes). The details are profiled on APIs.io as Sedna Authentication.

Does SEDNA have an MCP server?

Yes. APIs.io lists 1 MCP server for SEDNA: Remote MCP server at developers.sedna.com over HTTP.

Is the SEDNA API ready for AI agents?

SEDNA has a Kin Score of 44.3 out of 100 (developing) and an Agent Readiness score of 36.4 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/sedna"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/sedna/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/sedna/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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