Candis

Candis is a Berlin-based fintech (founded 2015) offering an AI-driven financial process automation and accounts-payable platform for SMEs. It captures incoming invoices, reads invoice data via OCR (business partner, amount, date, IBAN), routes them through approval workflows, and exports approved postings to accounting systems and ERPs. As a licensed DATEV interface partner it also integrates with Sage and Wolters Kluwer, and supports three-way matching of invoices against purchase orders and goods receipts. Candis exposes a public REST API (developer.candis.io) with an Export API, Core Data API, and read-only Invoice, Reimbursement Item, and Purchase Request Data APIs, secured with OAuth2/OIDC and fronted by an official MCP server.

Candis publishes 6 API contracts indexed on the APIs.io network, including Core Data API, Exports API, Invoices API, and 3 more. Tagged areas include Company, Fintech, Accounts Payable, Spend Management, and Invoice Management.

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

Candis’ developer surface includes documentation, API reference, getting-started guide, engineering blog, support, changelog, authentication, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

51.2/100 developing ▲ 6.3 Agent 54/100 agent native Front door AI 1/6 silent Heartbeat 2/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 2 Agent Skills

Company Fintech Accounts Payable Spend Management Invoice ManagementFinancial Process AutomationAccounting DATEV OCR Germany

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Financial Management

BC-200

Core DataInvoices

GET /v1/organizations/{organizationId}/invoices POST /v1/organizations/{organizationId}/imports/general-ledger-accounts

Kin Score

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

Composite quality — 51.2/100 · developing

Contract Quality 10.6 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 2.6 / 15

Operational Transparency 4.6 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 4.6 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 54/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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/.

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

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

3 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 17.1 — up to +16.6 composite points
Contract Quality scores 56.5 — up to +10.9 composite points
Developer Ergonomics scores 58.9 — up to +8.2 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/candis/apis.yml: open an issue on github.com/api-evangelist/candis 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
Procurement and B2B Buying (source-to-pay suites, spend management)	builds-on	34.5 (thin)	-	-
RPA and Document AI (RPA marketplaces, intelligent document processing)	builds-on	34.5 (thin)	-	-

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 5

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)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

OpenID Connect

measured — observed by APIs.io (declared)

APIs 6

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

Candis Core Data API

Import/update master data: general ledger accounts, cost dimensions, additional delivery costs.

Candis Exports API

Export approved invoices and postings to accounting/ERP systems.

Candis Invoices API

Read and update invoice metadata.

Candis Organizations API

The Organizations API from Candis — 1 operation(s) for organizations.

Candis Purchase Requests API

Read purchase request data.

Candis Reimbursements API

The Reimbursements API from Candis — 1 operation(s) for reimbursements.

Open Collections 6

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

Candis Core Data API

OPEN COLLECTION

Candis Core Data Exports API

OPEN COLLECTION

Candis Core Data Invoices API

OPEN COLLECTION

Candis Core Data Organizations API

OPEN COLLECTION

Candis Core Data Purchase Requests API

OPEN COLLECTION

Candis Core Data Reimbursements API

OPEN COLLECTION

MCP Servers 1

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

Candis MCP Server

Remote MCP server at developer.candis.io over HTTP; 5 tools listed.

MCP SERVER

Agent Skills 2

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

Export approved invoices and download the files

AGENT SKILL

Import and update master core data (idempotent upsert)

AGENT SKILL

Candis API pricing

Rate limits

: minute

Rate-limit details →

Rate Limits 1

Documented rate limits and quota policies.

Candis Rate Limits

1 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Candis API Rules

59 rules · 56 errors 2 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.

Candis Openapi Overlay

3 actions · update · candis-openapi.json

DERIVED

Security Posture 2

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

Candis Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Candis Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Candis Scopes

13 scopes · authorizationCode

13 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Lifecycle

ErrorCatalog

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

ChangeLog

RateLimits

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: candis
name: Candis
description: Candis is a Berlin-based fintech (founded 2015) offering an AI-driven financial process automation and accounts-payable
  platform for SMEs. It captures incoming invoices, reads invoice data via OCR (business partner, amount, date, IBAN), routes
  them through approval workflows, and exports approved postings to accounting systems and ERPs. As a licensed DATEV interface
  partner it also integrates with Sage and Wolters Kluwer, and supports three-way matching of invoices against purchase orders
  and goods receipts. Candis exposes a public REST API (developer.candis.io) with an Export API, Core Data API, and read-only
  Invoice, Reimbursement Item, and Purchase Request Data APIs, secured with OAuth2/OIDC and fronted by an official MCP server.
url: https://raw.githubusercontent.com/api-evangelist/candis/refs/heads/main/apis.yml
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
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://assets.my.candis.io/open_graph/CANDIS-UI.jpg
x-type: company
x-source: vc-portfolio
x-backed-by:
- lightspeed-venture-partners
- point-nine
- speedinvest
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-21
tags:
- Company
- Fintech
- Accounts Payable
- Spend Management
- Invoice Management
- Financial Process Automation
- Accounting
- DATEV
- OCR
- Germany
apis:
- aid: candis:candis-core-data-api
  name: Candis Core Data API
  description: 'Import/update master data: general ledger accounts, cost dimensions, additional delivery costs.'
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Core Data
  properties:
  - type: OpenAPI
    url: openapi/candis-core-data-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
- aid: candis:candis-exports-api
  name: Candis Exports API
  description: Export approved invoices and postings to accounting/ERP systems.
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Export
  tags_raw:
  - Exports
  properties:
  - type: OpenAPI
    url: openapi/candis-exports-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
- aid: candis:candis-invoices-api
  name: Candis Invoices API
  description: Read and update invoice metadata.
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/candis-invoices-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
- aid: candis:candis-organizations-api
  name: Candis Organizations API
  description: The Organizations API from Candis — 1 operation(s) for organizations.
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Organization
  tags_raw:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/candis-organizations-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
- aid: candis:candis-purchase-requests-api
  name: Candis Purchase Requests API
  description: Read purchase request data.
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Purchase Requests
  properties:
  - type: OpenAPI
    url: openapi/candis-purchase-requests-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
- aid: candis:candis-reimbursements-api
  name: Candis Reimbursements API
  description: The Reimbursements API from Candis — 1 operation(s) for reimbursements.
  humanURL: https://developer.candis.io/
  baseURL: https://api.candis.io
  tags:
  - Reimbursement
  tags_raw:
  - Reimbursements
  properties:
  - type: OpenAPI
    url: openapi/candis-reimbursements-api-openapi.yml
  - type: Documentation
    url: https://developer.candis.io/docs/getting-started
  - type: APIReference
    url: https://developer.candis.io/reference
  - type: Authentication
    url: authentication/candis-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/candis-capability-edges.yml
  name: Candis Business Capability Map
- type: Website
  url: https://www.candis.io/en
- type: DeveloperPortal
  url: https://developer.candis.io/
- type: Documentation
  url: https://developer.candis.io/docs/getting-started
- type: APIReference
  url: https://developer.candis.io/reference
- type: GettingStarted
  url: https://developer.candis.io/docs/getting-started
- type: Blog
  url: https://www.candis.io/en/blog
- type: Support
  url: https://hilfe.candis.io/en
- type: Login
  url: https://my.candis.io/
- type: PrivacyPolicy
  url: https://www.candis.io/en/privacy-policy
- type: GitHubOrganization
  url: https://github.com/CandisIO
- type: StatusPage
  url: https://status.candis.io
- type: ChangeLog
  url: https://developer.candis.io/changelog
- type: ChangeLog
  url: changelog/candis-changelog.yml
- type: OpenAPI
  url: openapi/_original/candis-openapi.json
- type: MCPServer
  url: mcp/candis-mcp.yml
- type: LLMsTxt
  url: llms/candis-llms.txt
- type: Authentication
  url: authentication/candis-authentication.yml
- type: OAuthScopes
  url: scopes/candis-scopes.yml
- type: WellKnown
  url: well-known/candis-well-known.yml
- type: Conventions
  url: conventions/candis-conventions.yml
- type: Idempotency
  url: conventions/candis-conventions.yml
- type: RateLimits
  url: rate-limits/candis-rate-limits.yml
- type: Lifecycle
  url: lifecycle/candis-lifecycle.yml
- type: ErrorCatalog
  url: errors/candis-error-codes.yml
- type: Conformance
  url: conformance/candis-conformance.yml
- type: DataModel
  url: data-model/candis-data-model.yml
- type: DomainSecurity
  url: security/candis-domain-security.yml
- type: Overlay
  url: overlays/candis-openapi-overlay.yaml
- type: AgentSkill
  url: skills/candis-export-approved-invoices.md
- type: AgentSkill
  url: skills/candis-import-core-data.md
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Candis API — frequently asked questions

Does Candis have an API?

Yes. APIs.io lists 6 APIs from Candis, including Candis Core Data API, Candis Exports API and Candis Invoices API, and 3 more.

Is there an OpenAPI specification for the Candis API?

Yes. APIs.io indexes 6 OpenAPI specifications for Candis, each linked for download from this page.

How do I authenticate with the Candis API?

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

Does Candis have an MCP server?

Yes. APIs.io lists 1 MCP server for Candis: Remote MCP server at developer.candis.io over HTTP; 5 tools listed.

Is the Candis API ready for AI agents?

Candis has a Kin Score of 51.2 out of 100 (developing) and an Agent Readiness score of 54.2 (agent-native), scored by API Evangelist on 2026-11-06.

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