PreAuth (Instacash)

Preauth is a Latin American fintech (the payment-guarantee product associated with the Instacash / Reevalúa lineage, surfaced via 500 Global) that lets businesses take and manage payment guarantees through card pre-authorization. A merchant creates an order via the REST API, the buyer's card is pre-authorized (funds reserved) through the hosted Preauth widget, and the merchant can later capture all or part of the reserved amount, update it, cancel it to release the hold, or run a card liveness check. It operates across Chile, Colombia, Mexico, Peru, and Argentina and integrates with Izipay, Kushki, dLocal, Stripe, Mercadopago, and Conekta as payment processors. Authentication is a per-request x-auth-token API key, and order lifecycle events are delivered by webhooks.

PreAuth (Instacash) publishes 1 API on the APIs.io network: Orders API. Tagged areas include Company, Payments, Payment Pre-Authorization, Payment Guarantees, and Fintech.

The PreAuth (Instacash) catalog on APIs.io includes 1 event-driven AsyncAPI specification.

PreAuth (Instacash)’s developer surface includes documentation, API reference, getting-started guide, support, signup flow, authentication, sandbox, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
49.6/100 developing ▬ flat Agent 61/100 agent native Full breakdown ↓
scored 2026-07-28 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyPaymentsPayment Pre-AuthorizationPayment GuaranteesFintechLatin AmericaCards

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.5
Composite quality — 49.6/100 · developing
Contract Quality 18.2 / 25
Developer Ergonomics 15.7 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 61/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/preauth-instacash: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

PreAuth (Instacash) Orders API

Create and manage pre-authorization orders.

MCP Servers 1

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

preauth-instacash-mcp.yml

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Preauth Webhooks

Preauth delivers order lifecycle notifications as HTTP POST requests to a URL the merchant configures in the developer panel (https://dashboard.preauth.io/panel/devs). Faithfull...

ASYNCAPI

Security Posture 3

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

Preauth Instacash Authentication

apiKey · 1 scheme

SECURITY

Preauth Instacash Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Preauth Instacash Trust Center

ISO 27001:2022, SOC 2 Type II

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Components
Components
 Webhooks
Webhooks
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Conformance
Conformance

Scroll for all 7

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Compliance
Compliance
 TrustCenter
TrustCenter

Operate 1

Status, limits, changes, and where to get help

Support
Support

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: preauth-instacash
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/preauth-instacash.png
name: PreAuth (Instacash)
description: Preauth is a Latin American fintech (the payment-guarantee product associated with the Instacash / Reevalúa lineage,
  surfaced via 500 Global) that lets businesses take and manage payment guarantees through card pre-authorization. A merchant
  creates an order via the REST API, the buyer's card is pre-authorized (funds reserved) through the hosted Preauth widget,
  and the merchant can later capture all or part of the reserved amount, update it, cancel it to release the hold, or run
  a card liveness check. It operates across Chile, Colombia, Mexico, Peru, and Argentina and integrates with Izipay, Kushki,
  dLocal, Stripe, Mercadopago, and Conekta as payment processors. Authentication is a per-request x-auth-token API key, and
  order lifecycle events are delivered by webhooks.
url: https://raw.githubusercontent.com/api-evangelist/preauth-instacash/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
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 20
  pass: local-v1
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Payments
- Payment Pre-Authorization
- Payment Guarantees
- Fintech
- Latin America
- Cards
apis:
- aid: preauth-instacash:preauth-instacash-orders-api
  name: PreAuth (Instacash) Orders API
  description: Create and manage pre-authorization orders.
  humanURL: https://docs.preauth.io/api-rest
  baseURL: https://api.preauth.io/v1
  tags:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/preauth-instacash-orders-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/preauth-instacash-webhooks-asyncapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/preauth-instacash-domain-security.yml
- type: Website
  url: https://preauth.io
- type: DeveloperPortal
  url: https://dashboard.preauth.io/
- type: Documentation
  url: https://docs.preauth.io/
- type: APIReference
  url: https://docs.preauth.io/api-rest
- type: GettingStarted
  url: https://docs.preauth.io/primeros-pasos
- type: Support
  url: https://join.slack.com/t/preauth-soporte/shared_invite/zt-18pzujyy8-F6cZBsHmZ_5OZFd16fnnWw
- type: SignUp
  url: https://dashboard.preauth.io/register
- type: Authentication
  url: authentication/preauth-instacash-authentication.yml
- type: Packages
  url: packages/preauth-instacash-packages.yml
- type: SDKs
  url: packages/preauth-instacash-packages.yml
- type: Components
  url: components/preauth-instacash-components.yml
- type: Sandbox
  url: sandbox/preauth-instacash-sandbox.yml
- type: MCPServer
  url: mcp/preauth-instacash-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/preauth-instacash-llms.txt
- type: Webhooks
  url: asyncapi/preauth-instacash-webhooks-asyncapi.yml
- type: Conventions
  url: conventions/preauth-instacash-conventions.yml
- type: ErrorCatalog
  url: errors/preauth-instacash-error-codes.yml
- type: Lifecycle
  url: lifecycle/preauth-instacash-lifecycle.yml
- type: DataModel
  url: data-model/preauth-instacash-data-model.yml
- type: Conformance
  url: conformance/preauth-instacash-conformance.yml
- type: Compliance
  url: security/preauth-instacash-trust-center.yml
- type: TrustCenter
  url: security/preauth-instacash-trust-center.yml
- type: WellKnown
  url: well-known/preauth-instacash-well-known.yml