Paymentology vs Unit

Paymentology and Unit are both Card Issuing APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. Unit supports self-serve signup; the other routes through a sales conversation. On compliance, Paymentology additionally documents GDPR; Unit additionally documents SOC 2. For coding-agent use, Unit scores higher on agent-friendliness (55 vs 20).

Comparedby a transparent data-readiness score computed from each API's published, sourced fields. No reviews, no paid placement. How we rank.

Data last verified 2026-06-21, with every field cited on each profile.

Head-to-head, from published, cited fields (auto-generated; no paid placement)
Field	Paymentology	Unit
Starting price	-	-
Pricing model	Sales-led	Sales-led
Free tier	✗	✗
Self-serve signup	✗	✓
SOC 2	·	Type II
HIPAA	✗	✗
GDPR	✓	✗
Webhooks	✓	✓
Sandbox	✓	✓
Documented actions	24	32

Full data and citations: Paymentology · Unit. See more Card Issuing APIs.