Klump

aid: klump
name: Klump
description: Klump Technology Company Ltd is a Lagos, Nigeria based fintech whose flagship product, Klump BNPL (Buy Now, Pay
  Later), lets shoppers spread the cost of a purchase over monthly instalments at online and in-store merchant checkouts.
  Merchants integrate Klump either through the Klump.js client-side checkout widget, a framework component (React, Vue 2,
  Vue 3, Angular, React Native, Flutter), an e-commerce plugin (WooCommerce/WordPress, Magento 2, PrestaShop, OpenCart, WHMCS),
  a Laravel package, or directly against the Klump REST API at https://api.useklump.com. The API is secret-key authenticated
  via a klump-secret-key header, uses one base URL for both sandbox and production (the key and the merchant application state,
  TEST or LIVE, select the environment), and covers transaction verification, Klump Commerce product sync, Klump Access hosted
  payment pages, and webhook resend. Klump emits transaction lifecycle webhooks (initiated, successful, abandoned) signed
  with an X-Klump-Signature HMAC header and retried hourly for 72 hours. Klump is backed by Seedcamp and displays a PCI DSS
  Compliant badge.
url: https://raw.githubusercontent.com/api-evangelist/klump/refs/heads/main/apis.yml
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://useklump.com/images/meta.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- seedcamp
x-tier: profiled
x-tier-reason: enriched-from-public-docs
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Payments
- Buy Now Pay Later
- BNPL
- Fintech
- Lending
- Checkout
- E-Commerce
- Nigeria
- Africa
- Instalments
- Consumer Credit
apis:
- aid: klump:klump-api
  name: Klump API
  description: The Klump REST API lets a merchant verify transactions, sync commerce product catalogs, create Klump Access
    hosted payment pages, and resend webhooks. A single base URL serves both sandbox and production; the environment is selected
    by whether the merchant application state is TEST or LIVE and by which secret key is presented. Every request must carry
    the merchant secret key in a klump-secret-key header; the public key (klp_pk_ prefix) is used client side with the Klump.js
    widget.
  humanURL: https://docs.useklump.com/docs
  baseURL: https://api.useklump.com
  tags:
  - Payments
  - BNPL
  - Checkout
  - Transactions
  - Webhooks
  properties:
  - type: Documentation
    url: https://docs.useklump.com/docs
  - type: Authentication
    url: https://docs.useklump.com/docs/api-keys-authorization
  - type: Sandbox
    url: https://docs.useklump.com/docs/test-card
  - type: Webhooks
    url: https://docs.useklump.com/docs/webhook-getting-started
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://useklump.com
- type: DeveloperPortal
  url: https://useklump.com/developers
- type: Documentation
  url: https://docs.useklump.com/docs
- type: APIReference
  url: https://docs.useklump.com/docs/api-keys-authorization
- type: GettingStarted
  url: https://docs.useklump.com/docs/getting-started
- type: Support
  url: https://useklump.com/contact
- type: Blog
  url: https://useklump.com/blog
- type: GitHubOrganization
  url: https://github.com/Klump-Inc
- type: Pricing
  url: https://useklump.com/pricing
- type: SignUp
  url: https://merchant.useklump.com/sign-up
- type: Login
  url: https://merchant.useklump.com/sign-in
- type: TermsOfService
  url: https://useklump.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://useklump.com/legal/privacy-policy
- type: Compliance
  url: conformance/klump-conformance.yml
- type: Authentication
  url: authentication/klump-authentication.yml
- type: Packages
  url: packages/klump-packages.yml
- type: SDKs
  url: packages/klump-packages.yml
- type: Components
  url: components/klump-components.yml
- type: Conventions
  url: conventions/klump-conventions.yml
- type: Idempotency
  url: conventions/klump-conventions.yml
- type: ErrorCatalog
  url: errors/klump-error-codes.yml
- type: Lifecycle
  url: lifecycle/klump-lifecycle.yml
- type: Sandbox
  url: sandbox/klump-sandbox.yml
- type: Webhooks
  url: asyncapi/klump-webhooks.yml
- type: Conformance
  url: conformance/klump-conformance.yml
- type: WellKnown
  url: well-known/klump-well-known.yml
- type: DomainSecurity
  url: security/klump-domain-security.yml
- type: MCPServer
  url: mcp/klump-mcp.yml
- type: LLMsTxt
  url: llms/klump-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence