Contasimples

Contasimples provides a digital banking platform for businesses in Brazil, offering corporate credit cards, payment services, expense management, and financial automation. The service includes features such as Pix transfers, batch payments, invoicing, and integration with ERP systems. It aims to simplify financial operations for startups and SMEs, providing tools for credit, cash flow management, and real‑time analytics.

Contasimples is listed with 10 APIs on the APIs.io network, including Accounts API, Attachments API, Categories API, and 7 more. Tagged areas include Company.

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

Contasimples’ developer surface includes changelog, authentication, API reference, getting-started guide, documentation, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

18.5/100 emerging ▬ flat Agent 35/100 agent ready Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

10 APIs

Company

Kin Score

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

Composite quality — 18.5/100 · emerging

Contract Quality 2.9 / 19

Developer Ergonomics 3.9 / 15

Access Clarity 0.0 / 15

Operational Transparency 1.5 / 10

Contract Governance 1.6 / 9

Discoverability 4.3 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 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):

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
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)
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)

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 15.3 — up to +21.2 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 26.2 — up to +14.8 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/contasimples/apis.yml: open an issue on github.com/api-evangelist/contasimples 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 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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 10

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

Conta Simples API

Technical reference of Conta Simples API endpoints.

Contasimples Accounts API

The Accounts API from Contasimples — 1 operation(s) for accounts.

Contasimples Attachments API

The Attachments API from Contasimples — 2 operation(s) for attachments.

Contasimples Categories API

The Categories API from Contasimples — 2 operation(s) for categories.

Contasimples Cost Centers API

The Cost Centers API from Contasimples — 2 operation(s) for cost centers.

Contasimples Credit Cards API

The Credit Cards API from Contasimples — 6 operation(s) for credit cards.

Contasimples OAuth API

The Oauth API from Contasimples — 1 operation(s) for oauth.

Contasimples Statements API

The Statements API from Contasimples — 3 operation(s) for statements.

Contasimples Suppliers API

The Suppliers API from Contasimples — 2 operation(s) for suppliers.

Contasimples Users API

The Users API from Contasimples — 2 operation(s) for users.

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Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Contasimples API Rules

11 rules · 9 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Contasimples Authentication

1 scheme

SECURITY

Contasimples Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Conventions

Lifecycle

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Deprecation

Deprecation

ChangeLog

ChangeLog

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: contasimples
name: Contasimples
description: Contasimples provides a digital banking platform for businesses in Brazil, offering corporate credit cards, payment
  services, expense management, and financial automation. The service includes features such as Pix transfers, batch payments,
  invoicing, and integration with ERP systems. It aims to simplify financial operations for startups and SMEs, providing tools
  for credit, cash flow management, and real‑time analytics.
url: https://raw.githubusercontent.com/api-evangelist/contasimples/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-10 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-10-10'
modified: '2026-10-10'
tags:
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/contasimples-rules.yml
- type: ChangeLog
  url: changelog/contasimples-changelog.yml
- type: Conventions
  url: conventions/contasimples-conventions.yml
- type: Authentication
  url: authentication/contasimples-authentication.yml
- type: Deprecation
  url: lifecycle/contasimples-lifecycle.yml
- type: Lifecycle
  url: lifecycle/contasimples-lifecycle.yml
- type: Conformance
  url: conformance/contasimples-conformance.yml
- type: LLMsTxt
  url: llms/contasimples-llms.txt
- type: WellKnown
  url: well-known/contasimples-well-known.yml
- type: Hosts
  url: hosts/contasimples-hosts.yml
- type: Vendors
  url: vendors/contasimples-vendors.yml
- type: ChangeLog
  url: https://developers.contasimples.com/br/operacao/changelog
- type: APIReference
  url: https://developers.contasimples.com/br/api-reference/introducao
- type: GettingStarted
  url: https://developers.contasimples.com/br/comece-aqui/quickstart
- type: Documentation
  url: https://developers.contasimples.com/
- type: DomainSecurity
  url: security/contasimples-domain-security.yml
- type: Website
  url: https://contasimples.com
apis:
- name: Conta Simples API
  description: Technical reference of Conta Simples API endpoints.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  aid: contasimples:conta-simples-api
- aid: contasimples:contasimples-accounts-api
  name: Contasimples Accounts API
  description: The Accounts API from Contasimples — 1 operation(s) for accounts.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/contasimples-accounts-api-openapi.yml
- aid: contasimples:contasimples-attachments-api
  name: Contasimples Attachments API
  description: The Attachments API from Contasimples — 2 operation(s) for attachments.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/contasimples-attachments-api-openapi.yml
- aid: contasimples:contasimples-categories-api
  name: Contasimples Categories API
  description: The Categories API from Contasimples — 2 operation(s) for categories.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/contasimples-categories-api-openapi.yml
- aid: contasimples:contasimples-cost-centers-api
  name: Contasimples Cost Centers API
  description: The Cost Centers API from Contasimples — 2 operation(s) for cost centers.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Cost Centers
  properties:
  - type: OpenAPI
    url: openapi/contasimples-cost-centers-api-openapi.yml
- aid: contasimples:contasimples-credit-cards-api
  name: Contasimples Credit Cards API
  description: The Credit Cards API from Contasimples — 6 operation(s) for credit cards.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Credit Cards
  properties:
  - type: OpenAPI
    url: openapi/contasimples-credit-cards-api-openapi.yml
- aid: contasimples:contasimples-oauth-api
  name: Contasimples OAuth API
  description: The Oauth API from Contasimples — 1 operation(s) for oauth.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - OAuth
  - Authentication
  tags_raw:
  - Oauth
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/contasimples-oauth-api-openapi.yml
- aid: contasimples:contasimples-statements-api
  name: Contasimples Statements API
  description: The Statements API from Contasimples — 3 operation(s) for statements.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Statements
  properties:
  - type: OpenAPI
    url: openapi/contasimples-statements-api-openapi.yml
- aid: contasimples:contasimples-suppliers-api
  name: Contasimples Suppliers API
  description: The Suppliers API from Contasimples — 2 operation(s) for suppliers.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - Suppliers
  properties:
  - type: OpenAPI
    url: openapi/contasimples-suppliers-api-openapi.yml
- aid: contasimples:contasimples-users-api
  name: Contasimples Users API
  description: The Users API from Contasimples — 2 operation(s) for users.
  humanURL: https://developers.contasimples.com/br/api-reference/introducao
  baseURL: https://api-sandbox.contasimples.com
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/contasimples-users-api-openapi.yml
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: API documentation is a JavaScript‑rendered Next.js site, no machine‑readable spec was found.
  evidence:
  - url: https://developers.contasimples.com/br/api-reference/introducao
    status: 200
  checked: '2026-10-10'
x-enrichment:
  date: '2026-10-10'
  status: enriched
  artifacts_added: 16
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Contasimples API — frequently asked questions

Does Contasimples have an API?

Yes. APIs.io lists 10 APIs from Contasimples, including Conta Simples API, Contasimples Accounts API and Contasimples Attachments API, and 7 more.

Is there an OpenAPI specification for the Contasimples API?

Yes. APIs.io indexes 9 OpenAPI specifications for Contasimples, each linked for download from this page.

How do I authenticate with the Contasimples API?

Contasimples documents its authentication (1 scheme). The details are profiled on APIs.io as Contasimples Authentication.

Is the Contasimples API ready for AI agents?

Contasimples has a Kin Score of 18.5 out of 100 (emerging) and an Agent Readiness score of 34.8 (agent-ready), scored by API Evangelist on 2026-11-06.

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