Cartena

Cartena provides a platform for managing investment portfolios, tracking dividends, and visualizing performance. It offers tools for organizing investments, monitoring earnings, and generating evolution charts, helping users stay on top of their financial assets with comprehensive insights and easy-to-use interfaces.

Cartena is profiled on the APIs.io network. Tagged areas include Finance, Investment, Portfolio, Dividends, and Brazil.

Cartena’s developer surface includes support, pricing, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

15.6/100 emerging Agent 3/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

0 APIs

Finance Investment Portfolio Dividends Brazil

Kin Score

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

Composite quality — 15.6/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 9.2 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 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 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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)
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

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 2.4 — up to +19.5 composite points
Operational Transparency scores 2.6 — up to +12.7 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/cartena-com-br/apis.yml: open an issue on github.com/api-evangelist/cartena-com-br 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Cartena API pricing

Prices published by Cartena, read 2026-11-03 from cartena.com.br/plans.

Plan	Price
Iniciante	R$0/mês
Pro Mensal	R$9,90/mês
Pro Anual	R$8,90/mês

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Cartena Com Br Plans Pricing

3 plans

PLANS

Security Posture 1

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

Cartena Com Br Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

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

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

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: cartena-com-br
name: Cartena
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: none
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://cartena.com.br/img/og-default.jpg
description: Cartena provides a platform for managing investment portfolios, tracking dividends, and visualizing performance.
  It offers tools for organizing investments, monitoring earnings, and generating evolution charts, helping users stay on
  top of their financial assets with comprehensive insights and easy-to-use interfaces.
url: https://artifacts.apis.io/cartena-com-br/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Finance
- Investment
- Portfolio
- Dividends
- Brazil
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/cartena-com-br-plans-pricing.yml
- type: Hosts
  url: hosts/cartena-com-br-hosts.yml
- type: Vendors
  url: vendors/cartena-com-br-vendors.yml
- type: Support
  url: https://cartena.com.br/help
- type: Pricing
  url: https://cartena.com.br/plans
- type: Login
  url: https://cartena.com.br/login
- type: GitHubOrganization
  url: https://github.com/cartena-tecnologia
- type: DomainSecurity
  url: security/cartena-com-br-domain-security.yml
- type: Website
  url: https://cartena.com.br/
- type: PrivacyPolicy
  url: https://cartena.com.br/privacy
- type: TermsOfService
  url: https://cartena.com.br/terms
apis: []
x-coverage:
  state: none
  reason: no-developer-program
  detail: No public API specification or developer documentation was found on cartena.com.br.
  evidence:
  - url: https://cartena.com.br/openapi.json
    status: 404
  checked: '2026-11-03'
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 10
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Cartena API — frequently asked questions

How much does the Cartena API cost?

Cartena publishes its prices; its Iniciante plan is R$0/mês as of 2026-11-03. APIs.io lists 3 pricing plans for Cartena, with each plan's price, limits and inclusions under Pricing on this page.

Is the Cartena API ready for AI agents?

Cartena has a Kin Score of 15.6 out of 100 (emerging) and an Agent Readiness score of 3.1 (human-only), scored by API Evangelist on 2026-11-06.

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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