# Primer

**Canonical:** https://apis.io/providers/primer/  
**Website:** https://primer.io/  
**APIs profiled:** 5

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.

## Kin Score — 50.9 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 50.9).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 64.1 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 65.8 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 47.4 |
| Access Clarity | 47.4 |

Regulatory layer — **Payments**: 43.8 (matched via tags).

## Agent readiness — 40.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (5)

- **Primer Client Session API API** — The Client Session API API from Primer — 1 operation(s) for client session api.
- **Primer Dispute & Chargebacks Webhooks API** — The Dispute & Chargebacks Webhooks API from Primer — 2 operation(s) for dispute & chargebacks webhooks.
- **Primer Payment Methods API API** — The Payment Methods API API from Primer — 4 operation(s) for payment methods api.
- **Primer Payment Webhooks API** — The Payment Webhooks API from Primer — 2 operation(s) for payment webhooks.
- **Primer Payments API API** — The Payments API API from Primer — 8 operation(s) for payments api.

## Agentic access (1)

- **Primer Agentic Access** — 20 operations · 16 acting

## Security (4)

- **Primer Authentication** — apiKey · 1 scheme
- **Primer Domain Security** — TLSv1.3 · HSTS · DMARC
- **Primer Vulnerability Disclosure** — disclosure policy published
- **Primer Trust Center** — SOC 2, ISO 27001

## Plans (1)

- **Primer Plans Pricing**

## Tags

Payments, Payment Orchestration, Payment Processing, Fintech, Fraud Detection, Smart Routing, Checkout, Payment Methods, Reconciliation, Webhook

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/primer/). Scores are computed from the provider's own public artifacts under a published rubric.