Banking & Capital Markets
API testing built for the bank's perimeter, not around it
Retail banking, capital markets, and payment networks share three constraints: API specs can't leave the bank, SOAP/WSDL is still part of the integration stack, and every release needs audit evidence. Total Shift Left was designed for that posture.
What blocks banks from adopting modern API testing
The decision rarely turns on features. It turns on whether the tool clears AI policy review, security questionnaire, and procurement on the first pass.
Cloud-LLM API testing fails the AI policy review
Most AI-native testing tools call OpenAI, Anthropic, or Google with your OpenAPI spec attached. For a bank, that spec describes payment endpoints, account-lookup queries, and KYC integration shapes — material non-public information. Total Shift Left runs against a self-hosted LLM (Ollama, vLLM, LM Studio) inside your perimeter, which is what your existing AI policy was already written to allow.
SOAP and WSDL still run the rails
ISO 20022 messaging, SWIFT integration adapters, core-banking middleware, and most payment-network APIs are SOAP services with WSDL contracts. Replacement testing tools that "support SOAP" but actually treat it as a legacy mode produce unreliable contract validation. Total Shift Left treats REST, SOAP/WSDL, and GraphQL as equal first-class protocols.
Audit evidence on every release
PCI-DSS 11.3, SOX ITGC, FFIEC change-management, and increasingly DORA Article 25 ask for documented evidence of test coverage on the controls that matter. Audit log capture, exportable test-run reports, and per-environment role assignments are baseline — not a roadmap line item.
Test data cannot leave the bank
Account numbers, card PANs, customer names, and transaction details are protected under GLBA and equivalents. Synthetic data generation and PII masking happen on-prem in the same boundary as the test runner — never in a SaaS workspace.
Control evidence mapping
How API test artifacts and run evidence map to the frameworks bank auditors actually ask about.
| Framework | How API test evidence applies |
|---|---|
| PCI-DSS 11.3 / 11.4 | Documented test cases on cardholder-data path APIs; exportable evidence per release. |
| SOX ITGC change-management | Per-release run reports, role-scoped sign-off, audit log of who ran which test against which environment. |
| FFIEC IT Handbook (Development & Acquisition) | Test artifacts maintained in source control; environment-scoped credential storage with AES-256 at rest. |
| GLBA Safeguards Rule | PII / account-number masking applied in-boundary; no test data egress to third-party AI services. |
| DORA (EU) Article 25 — ICT testing | Repeatable, evidenced API testing across CI/CD with role-scoped audit trail. |
| SOC 2 CC7.1 / CC8.1 | Change-detection on API contracts; test execution evidence retained and exportable. |
This is positioning evidence, not a compliance attestation. Talk to your auditor for binding control coverage decisions.
Integration surface we're built to test
Core banking middleware (Temenos, Finacle, FIS, Jack Henry)
SOAP/WSDL contract testing with per-environment endpoint configuration.
Card networks & payment processors
REST and SOAP fixtures, PAN masking on captured request/response payloads.
ISO 20022 / SWIFT messaging adapters
XML payload validation against schema; contract-drift detection between releases.
Open Banking / PSD2 endpoints
OAuth 2.0 / FAPI flow validation including negative-path test generation.
Internal customer-360 and KYC services
Synthetic data fixtures; never sends customer attributes to a cloud LLM.
Insurance carrier scenarios — claim adjudication, NAIC/state DOI integrations, HL7/FHIR for health insurers — covered on the insurance industry page.
Bring your security architect to the call
30-minute working call. Self-hosted deployment topology, AI-policy alignment notes, and security questionnaire response shared on the call so your security team can review in parallel.