# Discover Financial Services

**Canonical:** https://apis.io/providers/discover-financial/  
**Website:** https://www.discover.com/  
**APIs profiled:** 4

Discover Financial Services is a US direct bank and payments company that owns the Discover Network, the PULSE debit network, and Diners Club International. Its Discover Global Network (DGN) developer program exposes a partner-gated developer center with interactive OpenAPI documentation for card-network products — EMV 3-D Secure (ProtectBuy), Secure Remote Commerce / Click to Pay, Stored Token Services (tokenization), and Discover Deliver push payments. Consumer account-data access is delivered through open-finance aggregators (Plaid, Finicity) rather than a first-party retail-banking API.

## Kin Score — 20.4 / 100 (emerging)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 20.4).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Banking & Open Finance**: 31.6 (matched via tags).

## Agent readiness — 0.0 (human-only)

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

## Access

Partner-gated — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (4)

- **Discover ProtectBuy 3-D Secure API** — ProtectBuy is Discover Global Network's EMV 3-D Secure (3DS) cardholder authentication service. Built on the EMVCo 3-D Secure protocol, it lets merchants, acquirers, and 3DS ser...
- **Discover Secure Remote Commerce (Click to Pay) API** — Discover's Secure Remote Commerce (SRC) implementation powers Click to Pay, the EMVCo standard for a streamlined, tokenized online checkout across participating card networks. T...
- **Discover Stored Token Services API** — Stored Token Services is Discover Global Network's payment tokenization service. It replaces sensitive card account numbers with network tokens for card-on-file, digital-wallet,...
- **Discover Deliver Push Payments API** — Discover Deliver is Discover Global Network's push-payments (Original Credit Transaction) service, enabling the quick, convenient, and secure transfer of funds directly to eligi...

## Security (2)

- **Discover Financial Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Discover Financial Vulnerability Disclosure** — Hackerone

## Tags

Banking, Cards, Financial-Services, Fortune 500, Open Banking, Payments, United States, Card Network, 3D Secure, Tokenization

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