Fintech Tools for Payments Professionals
256+ browser-based tools for payments engineers, ops teams, treasury analysts, and compliance professionals — designed and built by Post Oak Labs. No install. No server. Nothing leaves your browser. All tools ship with a manifest.json for MCP agent discovery — discoverable via the Developer panel below.
Core Infrastructure
10 tools14 browser-based tools covering the full regulatory compliance lifecycle — GDPR/UK GDPR data subject rights, FCA Consumer Duty (PS22/9), institutional sanctions programme governance (OFAC/OFSI/EU), operational resilience (FCA PS21/3), MiFID II transaction reporting readiness, LEI lifecycle validation (ISO 17442/GLEIF), BCBS 239 / SR 11-7 model risk, and a 2025–2027 regulatory change horizon scanner. UK · EU · US. Client-side. Zero PII.
Compliance & Consent
16 toolsFraud & Risk
11 toolsSynthetic identity scoring, APP scam pre-payment assessment, fraud investigation, chargeback representment, batch sanctions screening, and AP2 agentic policy mandate building. Built around PSR PS23/3, FRB SR 2022, FinCEN FIN-2021-A003, and NACHA March 2026 fraud rules. All client-side. Zero PII.
Ops & Monitoring
12 toolsReal-time rail prefunding scheduling, a 16-rail global cutoff atlas, smart routing, A2A migration, ops incident runbooks, and an AP2 agentic ops policy mandate builder. FedNow · RTP · SEPA Instant · Fedwire · CHAPS · PIX · UPI · SWIFT gpi. All client-side. Zero PII.
Open Banking & APIs
17 toolsAll 10 Cat-5 tools are now live as a unified developer onboarding suite — covering ISO 20022 message validation, consent scope mapping, SCA exemption logic, FAPI 1.0/2.0 payload generation, VRP mandate building, IBAN/BIC validation, and API exploration. One guide. Every open banking workflow. PSD3 · CFPB 1033 · UK OB · FAPI · SEPA.
All 15 Cat-6 tools now live as a unified CFO and treasury onboarding suite — covering cash flow forecasting, working capital cycle optimization, A2A liquidity simulation, FX hedge modeling, dynamic discounting, subscription dunning, and board memo generation. One guide. Every treasury decision. Client-side. Zero PII.
Treasury, Strategy & Revenue
18 toolsReference & Decoder
2 toolsPayCode Decoder
Paste any payment code — ACH return code (R01–R85), ISO 20022 message type, SWIFT MT field tag, IBAN, BIC, UETR, SEPA code, ISO 4217 currency — and get an instant plain-English explanation with remediation guidance and contextual tool links. The full lookup library ships with the page. Nothing is ever transmitted to a server.
Open Decoder →Card Economics
4 toolsESG & Sustainable Finance
2 toolsBrowser-based wealth planning and retirement modeling suite. Monte Carlo FIRE simulator, personal finance life modeling, startup runway analysis, compound interest modeling, asset allocation heatmapping, and more — all linked by a Portable Scenario State system. No accounts. No uploads. Everything local.
Personal Finance
13 toolsAll 21 Cat-11 tools are now live as a unified enterprise DLT onboarding suite — covering CBDC architecture, smart contract validation, DvP reconciliation, chain configuration auditing, settlement finality, privacy topology, node modelling, guardrail building, and stablecoin reserve stress testing. One guide. Every permissioned chain workflow. Corda · Fabric · Besu · Canton · CBDC.
DLT & Tokenization
22 toolsAll 22 Cat-12 tools live as a unified compliance onboarding suite for BSA/AML officers, MLROs, financial crime analysts, and fintech compliance engineers. Covers customer risk rating, beneficial ownership mapping, TM rule design, SAR/CTR narrative generation, FATF typology training, VASP Travel Rule, sanctions exposure modelling, and AML programme gap auditing.
AML/KYC & Financial Crime
24 toolsAll 16 Cat-13 tools live as a unified B2B payments operations suite for payments engineers, finance leads, ERP architects, and marketplace operators. Covers invoice-to-payment orchestration, virtual card economics, AP automation savings, supplier payment terms optimisation, supply chain finance, ISO 20022 remittance validation, DAC7/1099-K withholding, and platform payout design.
B2B Payments & Platform Operations
17 toolsAll 13 Cat-14 tools live as a unified BaaS infrastructure suite for fintech engineers, programme managers, and embedded finance architects. Covers FBO account structures, ledger design, BIN sponsorship economics, wallet float yield, settlement orchestration, Reg E/UDAAP controls, marketplace payout design, embedded lending unit economics, and sponsor bank readiness scoring.
Embedded Finance & BaaS Infrastructure
15 toolsNine browser-based tools covering the full EU e-invoicing and VAT compliance lifecycle — from Peppol access point simulation and VAT rate lookup through ViDA Digital Reporting Requirements scoring, ISO 20022 invoice bridging, archiving obligation mapping, cross-border VAT recovery, and Digital Services Tax exposure. France, Belgium, Poland KSeF, Italy SdI, and global DST rules. Client-side. Zero PII.
E-Invoicing, VAT & ViDA
11 toolsEight browser-based tools covering the full BNPL and consumer credit compliance lifecycle — FCA DPC readiness (live 15 Jul 2026), merchant integration compliance, late fee and penalty rules, affordability assessment modelling, disclosure template generation, arrears and collections obligations, APR calculation (EU CCD2 & US TILA), and B2B underwriting sandbox. Client-side. Zero PII.
Consumer Credit & BNPL
9 toolsEight deterministic, browser-based tools covering the full counterparty credit lifecycle — from internal rating and PD/LGD/EAD modelling through SA-CCR CVA, Basel III/IV RWA computation, financial covenant monitoring, credit stress testing, RAROC loan pricing, and IFRS 9 migration matrix generation. IFRS 9 and CECL aligned. Client-side. Zero PII.
Counterparty Credit Risk
9 toolsFourteen browser-based tools covering the full cross-border FX and payments lifecycle — from FX margin deconstruction and hedging instrument comparison through corridor cost ranking, pacs.008 payload generation, IBOR transition, settlement risk, EM FX classification, FATF Travel Rule compliance, and BIS G20 target benchmarking. ISO 20022 CBPR+ · SWIFT gpi · SEPA Instant · FedNow · PIX · CLS · PvP. Client-side. Zero PII.
Cross-Border FX & Payments
15 toolsEight browser-based tools covering the compliance and optimisation layer between merchants, acquirers, issuers, and payment networks — NACHA ACH operating rules, PCI DSS v4.0 scope assessment, Visa/Mastercard interchange qualification, 3DS 2.x EMV SCA compliance, card dispute reason code reference, RTP network participation eligibility, network rule change impact modelling, and card scheme fee benchmarking. Client-side. Zero PII.
Payment Scheme & Network
9 toolsNine browser-based tools covering the full SME financial health lifecycle — from credit risk scoring and working capital gap analysis through invoice finance eligibility, open finance credit signal mapping, revenue-based finance modelling, government grant eligibility, cash flow stress testing, and covenant monitoring. CFPB 1033 · PSD3 · UK Growth Guarantee. Client-side. Zero PII.
SME Financial Health
10 toolsEight browser-based tools covering the full real-time payments operations and compliance lifecycle — FedNow participation readiness, ISO 20022 cross-rail compatibility, RTP fraud velocity rule building, PSR APP fraud reimbursement workflows, intraday credit facility sizing, AP2 agentic policy, and companion tools for FedNow lookup and APP fraud liability. FedNow · RTP/TCH · SEPA Instant · BCBS 248 · UK PSR PS24/3. Client-side. Zero PII.
Real-Time Payments Operations & Compliance
14 toolsEleven browser-based tools covering the full EU DORA (Digital Operational Resilience Act) compliance lifecycle — ICT risk gap analysis, Register of Information quality, critical functions identification, incident classification, resilience testing programme design, third-party contract checking, ICT concentration risk modelling, proportionality assessment, NCA submission tracking, NIS2/DORA overlap mapping, and AP2 policy mandate generation. EU 2022/2554 · RTS 2024/1772 · ITS 2025/302. Client-side. Zero PII.
DORA & Operational Resilience
13 toolsEvery tool ships with a manifest.json that includes deterministic I/O schemas, MCP tool definition names, and AP2 export flags. Agent runtimes and orchestration systems can discover, validate, and invoke tools programmatically using these machine-readable manifests. All tools are client-side, deterministic, and zero PII — safe for automated agent invocation.
| Category | Example Tool ID | MCP Function Name (example) | AP2 Tools | Suite Size |
|---|---|---|---|---|
| AI Suite / Rule-Based Engines | rbe-07-signal-auditor | agent_signal_integrity_auditor | 11/13 | 13 tools |
| Core Infrastructure | 01-a2a-fee-route-optimizer | a2a_fee_calculator_route_optimizer | 8/9 | 9 tools |
| Compliance & Consent | 311-gdpr-dsr-workflow-generator | generate_gdpr_dsr_workflow | 6/14 | 14 tools |
| Fraud & Risk | 323-ap2-fraud-risk-policy-mandate-builder | build_ap2_fraud_risk_policy_mandate | 8/10 | 10 tools |
| Ops & Monitoring | 326-ap2-payment-ops-policy-mandate-builder | build_ap2_payment_ops_policy_mandate | 5/11 | 11 tools |
| Open Banking & APIs | 10-open-banking-api-explorer | open_banking_api_explorer_rate | 9/13 | 13 tools |
| Treasury, Strategy & Revenue | 103-payment-method-optimizer | payment_method_mix_optimizer | 15/17 | 17 tools |
| ESG & Sustainable Finance | 49-portfolio-financed-emissions-pcaf | portfolio_financed_emissions_calculator_pcaf | 2/2 | 2 tools |
| Reference & Decoder | paycode-decoder | decode_payment_code | 0/1 | 1 tools |
| Card Economics | 52-interchange-optimizer | interchange_fee_optimizer | 3/4 | 4 tools |
| Personal Finance | 107-monte-carlo-fire-simulator | monte_carlo_fire_trajectory_simulator | 8/12 | 12 tools |
| DLT & Tokenization | 108-dlt-partition-recovery-sim | dlt_consensus_partition_recovery_simulator | 17/21 | 21 tools |
| AML/KYC & Financial Crime | 109-cdd-edd-checklist | cdd_edd_checklist_generator | 20/23 | 23 tools |
| B2B Payments & Platform Operations | 132-invoice-to-payment-orchestrator | invoicetopayment_orchestrator | 16/16 | 16 tools |
| Embedded Finance & BaaS | 152-baas-provider-comparator | baas_provider_comparator | 12/13 | 13 tools |
| E-Invoicing, VAT & ViDA | 175-vat-treaty-lookup | crossborder_vat_treaty_lookup_engine | 7/9 | 9 tools |
| Consumer Credit & BNPL | 187-bnpl-fca-readiness-checker | fca_bnpl_dpc_readiness_checker | 6/8 | 8 tools |
| Counterparty Credit Risk | 197-credit-risk-rating-calculator | credit_risk_rating_calculator | 8/8 | 8 tools |
| Cross-Border FX & Payments | 209-fx-margin-cost-transparency | fx_margin_cost_transparency_calculator | 10/14 | 14 tools |
| Payment Scheme & Network | 224-nacha-ach-rule-compliance-checker | nacha_ach_rule_compliance_checker | 7/8 | 8 tools |
| SME Financial Health | 239-sme-credit-risk-scoring | sme_credit_risk_scoring_engine | 9/9 | 9 tools |
| Real-Time Payments Operations & Compliance | 06-fednow-lookup | fednow_participant_lookup_coverage_stats | 9/11 | 11 tools |
| DORA & Operational Resilience | 300-dora-ict-risk-gap-analyser | dora_ict_risk_management_gap | 11/11 | 11 tools |
ap2_export: true · execution.type: browser-javascript · deterministic · Zero external API calls · Zero PII. Each category hub page contains its own detailed per-tool MCP table. MCP tool definition names follow the pattern verb_noun_context and are suitable for direct use as MCP server function names. Read the AP2 mandate schema (v1.0) for the canonical AP2 JSON structure.