The AI Security Layer for financial services: append-only audit log for SOC 2 CC7.2 + PCI DSS Req 10.5, PII / PAN auto-redaction, adaptive Z-score circuit breaker, and pre-mapped PCI DSS v4 requirements (partial coverage). All 4 platforms from $399/mo.
Proactive protection against the most common attacks targeting payment and banking APIs
Attackers test stolen credit cards via rapid-fire payment API requests. Sliding-window rate limit per BIN + adaptive Z-score breaker flag burst patterns before authorization is attempted.
Credential stuffing and brute force attacks against banking logins. Zero Trust risk scoring scores every login for ≥5 failed attempts/hr (+30 points) and impossible travel (+50 points) and logs elevated results; it does not yet trigger step-up MFA.
Parameter tampering to modify amounts, recipients, or currency. Schema validation, parameter pollution detection, and HMAC signature verification block tampered payloads at the gateway.
API Security + MCP Security + AI Gateway + Verification Engine — unified on one finding bus for financial workloads
Pre-mapped to PCI DSS v4.0 requirements. A control crosswalk maps SOC 2 controls to their overlapping PCI DSS requirements.
Secure AI agents that analyze transactions for fraud. Every tools/call passes 7 sequential checks — permission, MFA, rate limit, rug-pull (SHA-256 drift), threat detect, forward, response scan — before touching customer data.
Route LLM calls for credit risk scoring, loan underwriting, and fraud analysis. Adaptive Z-score circuit breaker (statistical, not threshold) for failover; PII / PAN scrubbing before LLM processing.
Validate every AI-driven risk decision before it moves money or denies an applicant. Real-time enforcement with staged rollout; BLOCK-capable on selected critical paths.
Built for banking, payments, and crypto compliance. Every feature pre-mapped to financial regulatory standards.
API requests are written to an append-only audit log, HMAC-SHA256 hash-chained per organization from a genesis hash derived from the deployment key, with full, single-entry and last-N verification. Authentication and domain events are also chained per tenant (all-zeros genesis, each entry HMAC-signed) and verified daily since 2026-09-13. Mapped to PCI Req 10.5.
Detect suspicious transaction patterns: rapid transfers, unusual amounts, geographic anomalies. Block fraud before money moves with adaptive Z-score circuit breakers per endpoint.
Pre-built rules for banking, payments, and crypto. Customize for your specific risk tolerance and regulatory requirements.
Automated KYC/AML checks at the API layer.
Automated incident response for fraud events. Block suspicious accounts, freeze transactions, and alert your team in real-time with configurable playbooks.
Automated report generation for regulatory filings. SAR, CTR, and CMIR reports pre-populated with API transaction data and ready for submission.
Zero code changes to your payment APIs or AI fraud stack. Target: Sub-5ms gateway proxy overhead on cached, single-region paths.
Not in Anthropic's MCP spec. Not in API gateways. Not in WAFs. Platform-level additions built for financial workloads.
MCP servers the proxy launches locally (stdio, off unless the operator sets MCP_STDIO_SERVERS_ENABLED) run in their own session (setsid), drop to nobody if started as root, and get no-new-privs, ambient capabilities cleared and RLIMIT_AS/FSIZE/NOFILE/NPROC ceilings. Remote (HTTP) servers are proxied and inspected, not sandboxed, and network egress is not filtered.
SHA-256 hash of every fraud-detection tool definition pinned at tools/list. On every tools/call, the cached definition is re-hashed and compared. Drift raises MCPRugPullDetectedError, blocks execution, publishes a CRITICAL event.
Statistical, not threshold-based. Z-score > 3.0 against per-hour time-of-day baselines (markets open vs overnight). 4 overlapping sliding windows (1m/5m/15m/1h). Progressive recovery (10→25→50→100%).
Findings from all four pillars land on one threat-event bus. A compound correlator groups them in 5-minute windows by correlation ID and by organization + client IP, and raises one incident when they match a known multi-stage pattern: a prompt injection at the gateway plus an SSRF probe and a path traversal at the API from the same client become a single critical Lethal Trifecta finding.
HMAC-SHA256 hash chain on authentication and domain events (since 2026-09-13), each entry signing the previous. Three verification levels (full / single / last-N). Control mapping (not an attestation) for SOC 2 CC7.2, PCI DSS Req 10.5, and SAR/CTR filing recordkeeping.
Cross-session attack detection: 6-dimension risk score (max 110) across tool sensitivity, data volume, burst, denials, prior detections, and tool diversity. Catches coordinated multi-account fraud and 24h slow-and-low patterns.
Every pillar publishes its findings to one threat event bus. The compound correlator joins findings on the same request by correlation ID, and separate requests from one client by organization + client IP.
mcp_tool_calls with its correlation ID • Compound findings link every contributing finding • Hash-chain entries are tamper-evident for SAR/CTR filingBuilt for every type of financial service
Protect account opening, KYC, transfers, and card issuance APIs from fraud and abuse.
Stop card testing, validate webhooks, and prevent payment fraud with real-time pattern detection.
Prevent unauthorized withdrawals, detect wash trading, and secure trading APIs from manipulation.
Examples, not integrations: G8KEPR works at the HTTP layer and ships no vendor-specific connector for any of these payment, banking, identity or fraud systems.
G8KEPR applies the same HTTP-layer controls to payment and webhook APIs as to any other API it handles. There is no Stripe, Plaid or fraud-vendor connector.
Common questions about G8KEPR for financial services
G8KEPR implements security controls aligned with PCI-DSS requirements 6.5, 6.6, and 11.4. We provide automated compliance reporting and evidence collection to support your QSA assessments. Formal PCI-DSS certification requires a Qualified Security Assessor (QSA) assessment, which is the customer's responsibility.
Security testing to date is an internal red-team self-assessment (April 2026); no third-party penetration test has been performed yet.
G8KEPR is not a card-data vault and does not tokenize card data. It sits in the request path, so it reads whatever your API traffic carries, and two of its records keep part of what it read. Neither masks card numbers.
Neither record has a scheduled deletion. The threat events G8KEPR stores for a refused prompt or a flagged MCP tool call name the finding and carry no request text. A log filter, on by default, replaces common card-number patterns in G8KEPR's application logs with a redaction marker. It does not run on database records. If your API traffic carries card numbers, treat the G8KEPR database as a system that can hold them.
Payment webhooks (Stripe, Adyen, etc.) get the same HTTP-layer controls as any other API. G8KEPR does not verify the payment provider's webhook signatures; your application still does that.
Yes. G8KEPR provides transaction monitoring rules specifically designed for Bank Secrecy Act compliance. We detect structuring patterns ($9,999 transactions), velocity anomalies, and suspicious activity that may require SAR filing.
Our audit logs are designed toward FinCEN recordkeeping requirements, with a 7-year audit retention by default and an append-only table.
G8KEPR adds less than 10ms of latency to API requests. Our edge network processes security rules at 200+ locations globally, ensuring minimal impact on transaction processing times.
For ultra-low-latency requirements (high-frequency trading, real-time payments), we offer dedicated infrastructure targeting sub-5ms routing overhead SLAs.
Yes. G8KEPR protects cryptocurrency exchanges, wallets, and DeFi platforms. We have specific security rules for wash trading detection, withdrawal velocity limits, and wallet draining prevention.
There is no Travel Rule or blockchain-analytics connector.
G8KEPR targets 99.9% uptime. The hosted service runs in a single region today; customer-hosted deployments can run the shipped HA components (Helm charts, Patroni PostgreSQL). Enterprise plans can negotiate SLA terms — contact sales.
We publish real-time status at g8kepr.com/status and provide 15-minute incident response SLAs for critical issues affecting financial services customers.
Every transaction event written to the append-only audit log. Control crosswalk — each SOC 2 control is mapped to its overlapping PCI DSS and ISO 27001 controls.
"-Ready" / "aligned" reflect capability posture. PCI-DSS certification requires a Qualified Security Assessor (QSA) engagement on the customer's side; SOC 2 Type II observation in progress with external audit engagement H2 2026.
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Read Article →Join neobanks and payment platforms using G8KEPR to secure payment APIs, protect AI fraud detection agents, route risk-scoring LLMs, and map controls to PCI DSS v4.0 with documented evidence.