Introduction

@pulgueta/wompi is an unofficial SDK for the Wompi payments API, written in TypeScript and built around a few opinions that make payments code pleasant to write and review.

Design goals

• Error-first results. Every method returns a [error, data] tuple, so the caller has to confront failure before reaching the data. No surprise exceptions.
• Validated inputs and lenient responses. Inputs are checked with Zod before they hit the wire. Responses are parsed leniently — only stable identifiers are required, and unknown fields pass through so a Wompi API addition never breaks your client.
• Tree-shakeable subpaths. Import the client, the schemas (with their types and error classes) and the server helper separately — pay only for the surface you actually use.
• No runtime dependencies. The package uses the platform fetch and Node Crypto, so it runs unchanged on Node 22+, edge runtimes and modern serverless platforms.

What it covers

The SDK is one client with focused sub-resources:

• wompi.merchants — fetch merchant info and the presigned acceptance token.
• wompi.transactions — create, get, list and void transactions.
• wompi.tokens — tokenize cards and Nequi accounts.
• wompi.paymentSources — store reusable tokens as payment sources.
• wompi.paymentLinks — create and manage hosted checkout links.
• wompi.pse — list PSE financial institutions.

A tiny example

Here's the same shape every other page uses — instantiate the client once, then await methods that return a typed tuple.

import { WompiClient } from "@pulgueta/wompi";

const wompi = new WompiClient({
  publicKey: process.env.WOMPI_PUBLIC_KEY!,
  privateKey: process.env.WOMPI_PRIVATE_KEY,
  sandbox: true, // hits sandbox.wompi.co; flip to false for production
});

// Every method returns [error, data] — no try/catch boilerplate.
const [error, response] = await wompi.merchants.getMerchant();
if (error) {
  console.error(error.message);
  return;
}

response.presigned_acceptance?.acceptance_token;

When to use it

Reach for this SDK when you're calling Wompi from a Node or edge runtime — Astro endpoints, Next.js route handlers, NestJS controllers, Vercel/Cloudflare functions, BullMQ workers — and want the input parsing, error narrowing and types to happen for you instead of by hand.

Reach for the raw HTTP API directly if you need a feature the SDK hasn't surfaced yet (or you're not on a JavaScript runtime). The SDK never hides the URL, headers or body shape — it just gives you a typed door to walk through.

Next

Install the package, then follow the quickstart to charge a sandbox card end-to-end.