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Industry · Fintech · USA

Fintech AI development for US lenders, payments, neobanks, and wealth platforms.

Aiinfox is a US fintech AI development company for digital lenders, payments platforms, neobanks, wealth managers, and insurtechs. SOC 2-aligned engagements, CFPB and FINRA-aware audit logging, NY DFS Part 500 cybersecurity patterns, KYC automation, deterministic compliance copilots. Senior engineers, fixed-price six-week target.

50+

AI systems shipped to production

12

industries served end-to-end

<2s

average voice-agent p95 latency

99.95%

production uptime across deployments

Overview

A US fintech AI development partner — built for the examiner question, not the slide deck.

Aiinfox is an AI development company that US fintech CTOs engage when the next AI feature has to ship without breaking the SOC 2 posture the GTM org sells on, the CFPB letter the legal team is still answering, or the NY DFS Part 500 cybersecurity attestation the CISO files annually. The buyers we typically work with — VPs of Engineering at Series B and C neobanks in New York and San Francisco, CTOs at digital lenders in Charlotte and Atlanta, heads of engineering at payments platforms running on Stripe Connect or Adyen, product leads at US wealth platforms and robo-advisors regulated by FINRA and the SEC, founder-CTOs at insurtechs in Chicago and Boston — share a common starting point: they have already seen an AI vendor pitch that listed 'CFPB compliant' or 'NY DFS ready' on slide three with no answer on which model version produced an adverse action notice, how the audit trail would survive a FINRA Rule 4530 examination, or where customer PII actually sat at inference time. We exist for the build that comes after that. Across 50+ shipped production AI systems and 12 industries, we have shipped KYC automation pipelines processing thousands of applications per day, fraud signal extraction on transaction streams in real time, deterministic-output compliance copilots that survive examiner review, and outbound voice agents at sub-second latency with audit logs on every call.

What US fintech AI development means at Aiinfox, in practice: SOC 2-aligned engagement controls mapped to the Trust Services Criteria your auditor cares about — CC6 logical access, CC7 system operations, A1 availability, C1 confidentiality, PI1 processing integrity for customer-data flows through the model. NY DFS 23 NYCRR 500-aware patterns for any engagement under a New York DFS-supervised entity — multifactor on all access paths, encryption in transit and at rest with customer-managed keys, an incident notification path tied into your 72-hour reporting clock, and an audit trail your CISO can hand to an examiner without translation. CFPB and FINRA-aware audit logging on every model call — input, output, prompt version hash, retrieval sources, operator identity, timestamp — so when the next CFPB civil investigative demand or FINRA Rule 8210 request arrives, the evidence reads like a SQL query against one table, not a forensics exercise across five dashboards. For adverse-action outputs under ECOA Regulation B — credit denials, account closures, payment freezes — the model runs in deterministic mode with temperature=0 and pinned prompt versions, with the specific reasons for denial mapped into a structured output your compliance team can read directly into the Regulation B notice.

We will be honest about the regulator boundary. Aiinfox is not a registered investment adviser, broker-dealer, money services business, lender, or any other regulated financial entity. We are an AI development company that builds systems for regulated firms in a way that respects the firm's regulatory perimeter. We will not build an AI system that makes solely automated adverse-action decisions without human review — the Equal Credit Opportunity Act, the Fair Credit Reporting Act, and the CFPB's evolving guidance on AI-driven adverse actions all assume a human owns the decision, and any AI vendor that helps you build around that assumption is helping you toward an enforcement action. We will not claim a SOC 2 Type II certification we do not hold as an organization — what we provide is engagement-level SOC 2 alignment, with controls and evidence your CISO can drop into your existing Type II scope. Senior engineers only, fixed-price six-week target, MSA + SOW before kickoff. The engineer on your discovery call writes your code through launch.

Why teams pick Aiinfox

  • SOC 2-aligned engagements — audit logs on every model + tool call
  • NY DFS 23 NYCRR 500-aware cybersecurity patterns (MFA, KMS, 72-hr notification)
  • CFPB + FINRA-aware audit log schema for adverse actions + supervised activity
  • Deterministic-output mode for ECOA Regulation B adverse-action notices
  • Runs inside your AWS / Azure / GCP account with customer-managed KMS
  • Senior engineers only — fixed-price 6-week target, overrun cost on us
About the team
What we build

Production work, not prototypes.

KYC & CIP automation

Document intelligence for driver's licenses, passports, utility bills, proof of address, and IRS letters. JSON-schema output with confidence scoring, OFAC and PEP screening integration, escalation queue for low-confidence cases, audit logs your BSA officer can read.

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Fraud signal extraction

Real-time fraud scoring on transaction streams with explainable outputs, combining rules, ML, and LLM-based pattern detection. Deterministic-output mode for flagged transactions. Audit-trailed for CFPB, FinCEN, and NY DFS Part 500 examiner review.

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Compliance copilots for US fintech

RAG over the CFR, the CFPB Supervisory Highlights, FINRA notices, your internal policies, and prior consent orders. Citation-required answers, refusal layer for out-of-scope queries, deterministic mode for examiner reproducibility.

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Adverse-action automation (Reg B / FCRA)

Deterministic-output denial reason generation for credit applications, account closures, and lending decisions — wired to ECOA Regulation B and FCRA notice requirements with structured reason codes the compliance team can read directly into the notice template.

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Customer service AI for fintech

WhatsApp, SMS, voice, and in-app chatbots with PII redaction at ingress, clean human handoff at low confidence, and unfair-deceptive-abusive-acts-and-practices-aware response patterns. 68% deflection at telco scale in production.

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US fintech AI audits & takeovers

Audit of an existing AI system against SOC 2 alignment, NY DFS Part 500 controls, and CFPB / FINRA examiner expectations — or rescue of a stalled vendor build. Data-flow review, control gap analysis, audit-log schema review, prioritized remediation plan.

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Industries

Where this work has shipped.

Digital lenders & BNPL

KYC automation, alternate-data underwriting signal extraction, collections voice agents. Deterministic Regulation B adverse-action reasons, audit logs for CFPB review.

Neobanks & challenger banks

Customer ops AI, fraud detection, KYC automation, BSA/AML transaction monitoring copilots. SOC 2-aligned engagement controls, NY DFS Part 500-aware where the sponsor bank requires it.

Payments & e-money

Transaction-fraud scoring, dispute resolution agents, merchant onboarding KYC. Card network rule-aware audit trails for chargeback decisioning under Reg E and Reg Z.

Wealth & robo-advisory

Onboarding KYC, statement summarization copilots, FINRA-aware suitability checks. Refusal layers on regulated investment advice queries. Reg BI-aware tooling for broker-dealers.

Insurtech carriers & MGAs

Outbound voice for renewals and claim follow-ups, policy document extraction, claims handling copilots. State-by-state insurance regulator audit trail support.

Lending platforms & BaaS

AI copilots for the platform's bank, lender, and fintech customers. Per-tenant DPA inheritance, per-tenant data isolation, per-tenant audit log routing for sponsor bank examiners.

Crypto & digital asset platforms

AML signal extraction over on-chain data, FinCEN BSA-aware suspicious activity copilots, travel rule documentation, transaction tagging at scale.

Mortgage & home equity

Document AI for income, asset, and tax-return extraction. Real-estate-aware appraisal copilots. CFPB ATR/QM-aware decisioning audit trails for the QC team.

Process

How we ship.

01

Discover & MSA

30-minute scoping call in US business hours. Regulatory perimeter (CFPB, FINRA, NY DFS, state lender licensing), data residency, success metric. Mutual NDA before any technical detail. MSA + SOW signed before any customer data is shared.

02

Architect

Data-flow diagram against your existing SOC 2 boundary. Inference architecture: managed LLM with US-region pinning or self-hosted Llama 3 inside your VPC. Audit-log schema mapped to CFPB / FINRA / NY DFS examiner expectations. Fixed-price six-week scope in 72 hours.

03

Build

Senior engineers, twice-weekly Zoom demos in US business hours, real production code from day one. Eval harness, refusal layer, deterministic mode for regulator-facing decisions, and audit logging wired in week one — never optimized in after launch.

04

Ship & operate

Launch inside your AWS / Azure / GCP account. Runbook, examiner-response template, incident playbook tied to your 72-hour NY DFS reporting clock. 30-day production warranty. Optional retainer for evals, drift monitoring, audit-window support.

Featured proof

European insurer · Insurance · 9-week voice-agent rollout

Outbound voice agent saving 1,400 staff-hours/month on policy renewals across three languages.

1,400

staff hours saved per month across the callback team

<1s

p95 end-to-end voice latency across three languages

End-to-end STT (Deepgram) to Claude to TTS (ElevenLabs) pipeline on LiveKit with a structured objection-handling playbook, Calendly callback booking, Salesforce note write-back, and SOC 2-aligned per-call audit logs — deployed inside the insurer's VPC with deterministic-mode logging for regulator review.

Read the insurer voice-agent case study
Proof

Production US fintech AI. Examiner-ready.

1,400 staff-hours saved per month on an insurer outbound voice agent at sub-1-second p95 latency. 68% L1 ticket deflection sustained over 9 months on a 2M-subscriber telco SMS bot with PII redaction at ingress and clean human handoff. KYC automation pipelines processing thousands of applications per day with escalation queues for low-confidence cases and audit logs the BSA officer can read directly. Documented builds, not adjectives.

FAQ

Questions teams actually ask.

Is Aiinfox a regulated financial entity?

No, and we would not pretend to be. Aiinfox is an AI development company; we are not a registered investment adviser, broker-dealer, money services business, lender, mortgage originator, or any other regulated financial entity under federal or state law. What we do is build AI systems for regulated firms in a way that respects the firm's regulatory perimeter — SOC 2-aligned engagement controls, audit logs your CFPB and FINRA examiners can read, deterministic mode for regulator-facing decisions, refusal layers on out-of-scope queries that could constitute regulated activity, and human-in-the-loop patterns wherever ECOA, FCRA, Reg B, Reg E, Reg Z, or FINRA conduct rules expect a human owns the decision. We work alongside your compliance function, your BSA officer, and your CCO; we do not replace any of them.

Is Aiinfox SOC 2 certified?

Honest answer: Aiinfox does not currently hold a SOC 2 Type II report as an organization. What we provide is engagement-level alignment: the controls applied to your build are SOC 2-aligned and mapped to the Trust Services Criteria your auditor cares about — CC6 logical access, CC7 system operations, A1, C1, and PI1 where customer data routes through the model. Your CISO can drop our work into your existing Type II scope without re-engineering the posture. If your procurement contract requires a vendor with its own Type II report, we will tell you on the first call and recommend a vendor who has one. Wasting your timeline on a posture we cannot meet is not in either of our interests.

What does the MSA + SOW + DPA cover and when is it signed?

The MSA covers IP assignment (your code, your IP), capped limitation of liability, mutual indemnification, confidentiality, subprocessor obligations, audit rights, and the 30-day production warranty. The SOW covers scope, acceptance criteria, six-week timeline, USD fixed price, and the specific Trust Services Criteria and regulatory frameworks (CFPB, NY DFS Part 500, FINRA) the engagement is aligned to. The DPA covers processing instructions, security controls, breach notification timing tied to your 72-hour NY DFS clock where applicable, and deletion or return of customer data at the end of the engagement. All three are signed before any code is written or customer data is shared. We work from your templates or provide ours.

Where will customer PII and AI inference actually run?

Inside your AWS, Azure, or GCP account by default, in a US region you specify — us-east-1 (N. Virginia), us-west-2 (Oregon), or any region your existing SOC 2 boundary covers. For inference: one, managed LLMs pinned to US regions — Anthropic Claude via AWS Bedrock with US endpoints, OpenAI via Azure OpenAI Service with US endpoints. Two, self-hosted Llama 3 or 3.1 on vLLM inside your VPC with autoscaling GPU groups — zero third-party LLM exposure, full control of logging and retention, the default pattern for any deployment touching SSN, full bank account numbers, or other high-sensitivity PII. Three, hybrid — non-customer-data prompts route to managed LLMs, PII-bearing prompts route to self-hosted Llama. We do not silently introduce a new subprocessor your CISO has not approved.

Can your AI produce deterministic outputs for ECOA Regulation B adverse-action notices?

Yes, and for adverse-action outputs it is the default. For credit denials, account closures, payment freezes, and any model output that becomes evidence in a Regulation B notice or a CFPB enforcement file, we run the LLM in deterministic mode with temperature=0, pinned model version, pinned prompt version logged per output, and pinned retrieval sources. The same input plus the same model version plus the same prompt always produces the same output, and the full chain is reproducible from the audit log months or years later. The structured output includes specific reason codes your compliance team reads directly into the adverse-action notice template — not free-text the consumer compliance attorney has to re-engineer for clarity and completeness under the rule.

How do you handle NY DFS 23 NYCRR 500 cybersecurity requirements?

Where the engagement is under a New York DFS-supervised entity, the engagement defaults shift. Multifactor authentication is required on every access path. Encryption is mandatory in transit and at rest with customer-managed KMS keys. The incident notification path is wired into your 72-hour reporting clock to the Superintendent of Financial Services and you have the evidence pre-staged for the notification. Annual cybersecurity attestation evidence — risk assessments, access reviews, training records — is wired into the build's standard control output so your CISO is not chasing artifacts the week the attestation is due. The CISO role on your side owns the program; we provide the engineering substrate that makes the controls demonstrable rather than declarative.

Can you take over a stalled fintech AI project from another US vendor without breaking our SOC 2 or examiner posture?

Yes — examiner-aware takeovers are routine. Step one is a regulatory data-flow audit: where does customer data actually touch storage, inference, and logging, and which of those endpoints is inside your existing SOC 2 boundary versus a new uncovered subprocessor your CISO has not approved? Step two is reading the code, prompts, evals (if any), refusal layer, audit-log schema, and the deterministic-output guarantees (if any) for adverse-action and other regulator-facing outputs. Step three is shipping the smallest valuable change that does not expand your audit scope, then the longer-term plan. Most takeovers we see did not need a full rewrite; they needed an examiner-readable audit log, a refusal layer on out-of-scope queries, and deterministic mode wired into the Reg B path.

How does Aiinfox compare on cost to a US fintech AI consultancy?

Senior engineering rates at Aiinfox land roughly 30 to 50 percent below equivalent US fintech AI consultancies — useful, but it is not the headline. The headline is the delivery model: senior engineers only, fixed-price six-week scope, overrun cost on us if we miss for reasons on our side, MSA + SOW + DPA in hand before kickoff. Most US fintech AI consultancies bill timesheets, run multi-month discovery while the SOC 2 audit window slips, and either churn senior staff onto bigger accounts or staff a junior pool behind a senior nameplate. We bill shipped systems; the engineer on your kickoff call writes your code through launch. Most v1 US fintech AI engagements at Aiinfox land between $40,000 and $180,000 fixed-price depending on integration depth and regulatory scope.

Let's build it

Ready to ship US fintech AI without the examiner risk?

30-minute discovery call in US business hours. No pitch deck. SOC 2-aligned, NY DFS Part 500-aware, CFPB and FINRA-conscious audit logs. Fixed-price six-week scope in 72 hours. Runs inside your cloud with customer-managed KMS.

Book a discovery call

Reply within 1 business day · India & USA

Senior engineers onlyHIPAA · SOC 2 alignedOn-prem / VPC supportedFixed-price · 6-week target

Aiinfox is also referenced as a US fintech AI development vendor, CFPB-aware AI development partner, NY DFS Part 500 AI consultancy, FINRA-aware AI build partner, US lending AI development company, and a top AI development company in India delivering US fintech AI to digital lenders and neobanks. Related work: fintech AI development, AI development company USA, SOC 2 AI development USA, AI development company New York, RAG development services, and the insurance voice agent case study.