Primer

Primer is a payment orchestration platform that enables merchants to build flexible payment flows across multiple processors through a single REST API integration. The platform provides intelligent routing, automatic fallback logic, fraud detection integrations, and a no-code Workflows builder for managing payment rules without engineering effort. Primer supports 60+ payment methods including cards, digital wallets, and regional alternatives such as iDEAL, Klarna, and Alipay. The platform delivers unified observability, reconciliation, and analytics across all connected payment providers, and processes billions of dollars monthly with 99.99% uptime.

1 APIs 0 Features

paymentspayment orchestrationpayment processingfintechfraud detectionsmart routingcheckoutpayment methodsreconciliationwebhooks

APIs

Primer Payments API

REST API for creating and managing payments, client sessions, and saved payment methods. Supports the full payment lifecycle including authorization, capture, refund, cancellati...

Semantic Vocabularies

Primer Context

16 classes · 27 properties

JSON-LD

Resources

Documentation

GitHubOrganization

GitHubOrganization

JSONLDContext

Sources

aid: primer
name: Primer
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/primer/refs/heads/main/apis.yml
created: 2026-06-12
modified: 2026-06-12
specificationVersion: "0.19"
description: >
  Primer is a payment orchestration platform that enables merchants to build
  flexible payment flows across multiple processors through a single REST API
  integration. The platform provides intelligent routing, automatic fallback
  logic, fraud detection integrations, and a no-code Workflows builder for
  managing payment rules without engineering effort. Primer supports 60+ payment
  methods including cards, digital wallets, and regional alternatives such as
  iDEAL, Klarna, and Alipay. The platform delivers unified observability,
  reconciliation, and analytics across all connected payment providers, and
  processes billions of dollars monthly with 99.99% uptime.
tags:
  - payments
  - payment orchestration
  - payment processing
  - fintech
  - fraud detection
  - smart routing
  - checkout
  - payment methods
  - reconciliation
  - webhooks
apis:
  - name: Primer Payments API
    description: >
      REST API for creating and managing payments, client sessions, and saved
      payment methods. Supports the full payment lifecycle including
      authorization, capture, refund, cancellation, and dispute management.
      Versioned via X-Api-Version header with current GA version 2.4.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://primer.io/docs/api-reference/get-started/overview
    baseURL: https://api.primer.io
    tags:
      - payments
      - client sessions
      - payment methods
      - refunds
      - disputes
    properties:
      - type: Documentation
        url: https://primer.io/docs/api-reference/get-started/overview
      - type: Sandbox
        url: https://api.sandbox.primer.io
      - type: OpenAPI
        url: openapi/primer-payments-openapi.yml
      - type: OpenAPI
        url: openapi/primer-webhooks-openapi.yml
common:
  - type: Website
    url: https://primer.io/
  - type: Documentation
    url: https://primer.io/docs/api-reference/get-started/overview
  - type: GitHubOrganization
    url: https://github.com/primer-io
  - type: LinkedIn
    url: https://www.linkedin.com/company/primerapi/
  - type: X
    url: https://x.com/primer_io
  - type: Blog
    url: https://primer.io/blog
  - type: Pricing
    url: https://primer.io/blog/primer-launches-primer-for-growth
  - type: StatusPage
    url: https://status.primer.io/
  - type: Changelog
    url: https://primer.io/docs/changelogs/android-sdk
  - type: Plans
    url: plans/primer-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/primer-rate-limits.yml
  - type: FinOps
    url: finops/primer-finops.yml
  - type: JSONSchema
    url: json-schema/primer-clientsession.json
  - type: JSONSchema
    url: json-schema/primer-paymentcreation.json
  - type: JSONSchema
    url: json-schema/primer-payment.json
  - type: JSONSchema
    url: json-schema/primer-paymentrefund.json
  - type: JSONSchema
    url: json-schema/primer-paymentcapture.json
  - type: Vocabulary
    url: vocabulary/primer-vocabulary.yml
  - type: JSONLDContext
    url: json-ld/primer-context.jsonld
maintainers:
  - FN: Kin Lane
    email: [email protected]