Contalink

Contalink is a Mexican cloud accounting and payroll platform ("contabilidad en la nube") built for independent accountants, accounting firms (despachos) and SMEs. It automates repetitive Mexican fiscal work — bulk CFDI download and classification, electronic accounting, DIOT preparation, treasury and bank reconciliation, invoicing (facturación) and payroll (nómina) with digital stamping — across multiple companies and users. Contalink also exposes a REST API that lets external systems read and post accounting data: trial balance (balanza de comprobación), account balances, manual accounting policies (pólizas manuales), invoice reconciliation (conciliación), bank transactions (movimientos bancarios) and CFDI fiscal-document listing, upload and status checks. The API authenticates with a per-company API key sent in the Authorization header. Backed by 500 Global.

Contalink publishes 8 APIs on the APIs.io network, including Balanza de comprobación API, Cargar un documento fiscal API, Conciliación API, and 5 more. Tagged areas include Company, Accounting, Bookkeeping, Payroll, and Tax.

Contalink’s developer surface includes API reference, documentation, getting-started guide, support, engineering blog, pricing, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.3/100 developing ▬ flat Agent 18/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Accounting Bookkeeping Payroll Tax Fintech Invoicing CFDI Mexico Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 41.3/100 · developing

Contract Quality 11.6 / 23

Developer Ergonomics 10.6 / 18

Access Clarity 6.2 / 18

Operational Transparency 2.2 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 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 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

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.

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 github.com/api-evangelist/contalink: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

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

Contalink Balanza de comprobación API

Obtiene la balanza de comprobación según los parámetros enviados

Contalink Cargar un documento fiscal API

Carga un documento fiscal al sistema

Contalink Conciliación API

Realiza la conciliación por medio del UUID de la factura proporcionada.

Contalink Listado de documentos fiscales API

Obtiene un listado de los documentos fiscales que correspondan a los filtros enviados

Contalink Movimientos bancarios API

Gestiona altas y bajas de los movimientos que se dan en los bancos, tarjetas, cajas, etc.

Contalink Pólizas manuales API

Gestiona altas, bajas y cambios de las pólizas manuales.

Contalink Saldo de una cuenta API

Obtiene el saldo de una cuenta contable

Contalink Status de documentos fiscales API

Valida los status de vigencia y pago de un documento fiscal

Scroll for all 8

Open Collections 9

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

API Collection

OPEN COLLECTION

API Contalink Balanza de comprobación API

OPEN COLLECTION

API Contalink Balanza de comprobación Cargar un documento fiscal API

OPEN COLLECTION

API Contalink Balanza de comprobación Conciliación API

OPEN COLLECTION

API Contalink Balanza de comprobación Listado de documentos fiscales API

OPEN COLLECTION

API Contalink Balanza de comprobación Movimientos bancarios API

OPEN COLLECTION

API Contalink Balanza de comprobación Pólizas manuales API

OPEN COLLECTION

API Contalink Balanza de comprobación Saldo de una cuenta API

OPEN COLLECTION

API Contalink Balanza de comprobación Status de documentos fiscales API

OPEN COLLECTION

Scroll for all 9

Security Posture 2

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

Contalink Authentication

apiKey · 1 scheme

SECURITY

Contalink Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Contalink Agentic Access

13 operations · 7 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

X-MCPServerCandidate

WellKnown

LLMsTxt

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: contalink
name: Contalink
description: 'Contalink is a Mexican cloud accounting and payroll platform ("contabilidad en la nube") built for independent
  accountants, accounting firms (despachos) and SMEs. It automates repetitive Mexican fiscal work — bulk CFDI download and
  classification, electronic accounting, DIOT preparation, treasury and bank reconciliation, invoicing (facturación) and payroll
  (nómina) with digital stamping — across multiple companies and users. Contalink also exposes a REST API that lets external
  systems read and post accounting data: trial balance (balanza de comprobación), account balances, manual accounting policies
  (pólizas manuales), invoice reconciliation (conciliación), bank transactions (movimientos bancarios) and CFDI fiscal-document
  listing, upload and status checks. The API authenticates with a per-company API key sent in the Authorization header. Backed
  by 500 Global.'
url: https://raw.githubusercontent.com/api-evangelist/contalink/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
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: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.contalink.com/favicon.ico
tags:
- Company
- Accounting
- Bookkeeping
- Payroll
- Tax
- Fintech
- Invoicing
- CFDI
- Mexico
- Software-as-a-Service
tags_raw:
- Company
- Accounting
- Bookkeeping
- Payroll
- Tax
- Fintech
- Invoicing
- CFDI
- Mexico
- SaaS
apis:
- aid: contalink:contalink-balanza-de-comprobaci-n-api
  name: Contalink Balanza de comprobación API
  description: Obtiene la balanza de comprobación según los parámetros enviados
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Balanza de comprobación
  properties:
  - type: OpenAPI
    url: openapi/contalink-balanza-de-comprobaci-n-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-cargar-un-documento-fiscal-api
  name: Contalink Cargar un documento fiscal API
  description: Carga un documento fiscal al sistema
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Cargar un documento fiscal
  properties:
  - type: OpenAPI
    url: openapi/contalink-cargar-un-documento-fiscal-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-conciliaci-n-api
  name: Contalink Conciliación API
  description: Realiza la conciliación por medio del UUID de la factura proporcionada.
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Conciliación
  properties:
  - type: OpenAPI
    url: openapi/contalink-conciliaci-n-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-listado-de-documentos-fiscales-api
  name: Contalink Listado de documentos fiscales API
  description: Obtiene un listado de los documentos fiscales que correspondan a los filtros enviados
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Listado de documentos fiscales
  properties:
  - type: OpenAPI
    url: openapi/contalink-listado-de-documentos-fiscales-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-movimientos-bancarios-api
  name: Contalink Movimientos bancarios API
  description: Gestiona altas y bajas de los movimientos que se dan en los bancos, tarjetas, cajas, etc.
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Movimientos bancarios
  properties:
  - type: OpenAPI
    url: openapi/contalink-movimientos-bancarios-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-p-lizas-manuales-api
  name: Contalink Pólizas manuales API
  description: Gestiona altas, bajas y cambios de las pólizas manuales.
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Pólizas manuales
  properties:
  - type: OpenAPI
    url: openapi/contalink-p-lizas-manuales-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-saldo-de-una-cuenta-api
  name: Contalink Saldo de una cuenta API
  description: Obtiene el saldo de una cuenta contable
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Saldo de una cuenta
  properties:
  - type: OpenAPI
    url: openapi/contalink-saldo-de-una-cuenta-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
- aid: contalink:contalink-status-de-documentos-fiscales-api
  name: Contalink Status de documentos fiscales API
  description: Valida los status de vigencia y pago de un documento fiscal
  humanURL: https://apidocs.contalink.com
  baseURL: https://794lol2h95.execute-api.us-east-1.amazonaws.com/prod
  tags:
  - Status de documentos fiscales
  properties:
  - type: OpenAPI
    url: openapi/contalink-status-de-documentos-fiscales-api-openapi.yml
  - type: Authentication
    url: authentication/contalink-authentication.yml
  - type: Conventions
    url: conventions/contalink-conventions.yml
  - type: DataModel
    url: data-model/contalink-data-model.yml
  - type: Conformance
    url: conformance/contalink-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgentSkill
  url: skills/contalink-post-manual-policy.md
- type: X-MCPServerCandidate
  url: mcp/contalink-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Overlay
  url: overlays/contalink-openapi-overlay.yaml
- type: Website
  url: https://contalink.com
- type: DeveloperPortal
  url: https://apidocs.contalink.com
- type: APIReference
  url: https://apidocs.contalink.com
- type: Documentation
  url: https://tutoriales.contalink.com/es/
- type: GettingStarted
  url: https://tutoriales.contalink.com/es/articles/8569647-configuracion-api
- type: Support
  url: https://tutoriales.contalink.com/es/
- type: Blog
  url: https://www.contalink.com/blog
- type: Pricing
  url: https://www.contalink.com/precios
- type: SignUp
  url: https://contalink.com/empezarahora
- type: Login
  url: https://app.contalink.com/
- type: PrivacyPolicy
  url: https://contalink.com/terms-conditions
- type: GitHubOrganization
  url: https://github.com/Contalink
- type: StatusPage
  url: https://estatus.contalink.com/
- type: Lifecycle
  url: lifecycle/contalink-lifecycle.yml
- type: WellKnown
  url: well-known/contalink-well-known.yml
- type: DomainSecurity
  url: security/contalink-domain-security.yml
- type: LLMsTxt
  url: llms/contalink-llms.txt
- type: AgenticAccess
  url: agentic-access/contalink-agentic-access.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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