CEMI

One-page summary

Virtual Financial Ecosystem Simulation - CEMI Financial Innovation Lab
An initiative of CEMI’s Financial Innovation Lab
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One-page summary

The whole project on one page. The same document as the print PDF beside it, laid out to be read on a screen rather than folded into a sheet.

The print version, one page, Letter:

What it is

A set of simulated counterparts of the institutions a payment or financial application must talk to in the Dominican Republic, organized exactly as the Central Bank organizes the real thing: the systems that make up the SIPARD, the participants that hold accounts in it, the payment-service providers the Reglamento recognizes, the instruments it classifies, the support entities around them, and the rules that govern the whole.

Each counterpart speaks the real protocol and message format of its kind, keeps state — accounts, balances, cards, electronic payment accounts, cases — obeys the rules the Reglamento sets for participation, timing, limits, irrevocability and records, and can be put into failure and adversarial modes. A team plugs its application in and runs a whole process end to end, from onboarding to settlement in the simulated LBTR to a suspicious-transaction report, without touching a real institution, a real person or real money. Every message is recorded and the run produces an instrumented report.

The value is that all the counterparts exist together, consistently, in one place, with one synthetic population moving through them — so a process that crosses six organizations is exercised as one process, under the rules that will apply when it is real.

Why now

SGPI is the moment

The Sistema de Gestión de Pagos Instantáneos credits the beneficiary within 10 seconds, runs 24/7/365, addresses by alias and notifies both parties immediately. Every financial-intermediation entity, electronic-payment entity, acquirer and sub-acquirer is a mandatory participant. Nobody in the country can integrate against it yet.

Reglamento Art. 60–62 · Art. 61 §I · BCRD SGPI page

Startups need it more than banks do

A would-be electronic-payment entity, wallet provider or payment-initiation provider cannot get a bank’s test environment before it has a bank, and cannot get a bank without a working flow. The ecosystem breaks that loop.

The report is a document with a use

A provider preparing a request for the Central Bank’s no objection needs exactly what an instrumented run produces: a description, an operating scheme, the list of providers, support entities and participants, and evidence for a risk-materiality analysis.

Reglamento Art. 83

What a team gets today

Endpoints

A console at ecosystem.financial with a world switcher, a REST API that publishes its own OpenAPI contract, 150+ endpoints, webhooks that tell an application what happened, a machine lane for real ATM and ITM integrations. Transfers as ISO 20022-shaped JSON; card responses carry the ISO 8583 projection.

A world of one’s own

One team key, sent as x-lab-api-key. Each key is its own world — seed, clock, ledgers and reports — persisted in Firestore, deterministic from its seed and resettable. It is born with 5+ institutions, 200+ synthetic people and 40+ businesses holding accounts, balances, cards and SGPI aliases, plus flagged adversaries.

The ecosystem, entire

Cards end to end — acquirer and sub-acquirer, two card schemes, clearing settled net in the LBTR, disputes — wallet, initiation and gateway providers, a QR profile, consent, the simulated supervisors, the financial-intelligence unit and the compliance plug, cheque clearing, chaos mode, sponsored nodes with a private vendor lane, certification runs and the Art. 83 dossier.

Try it live

A public simulation runs in the browser at financialecosystem.io/simulate/ — no key, nothing to install: a transfer, a cash withdrawal or a card purchase, run live with every rule cited. The technical manual, the request-key form and the feedback form are on the same site.

Scope today

30+simulated counterparts
250+REST endpoints
150+executable rules, each citing its article
40+published scenarios
1000+automated tests
2026.09.06rule catalogue version

Who it is for

How institutions take part

Where it stands

Development phases are history and tell a reader nothing. What matters is what stands today, what comes next, and what is not ours to decide.

What is standing

  • 30+ simulated counterparts on 110+ rails, 150+ executable rules each citing its article, 40+ published scenarios, 1000+ automated tests — floors, every one of them.
  • A public simulation anybody runs in the browser, with no key and nothing to install.
  • A world of its own per team: seed, clock, ledgers and reports, deterministic and resettable.
  • A console that follows a run live and draws the ecosystem map from the platform’s own catalogue.
  • Sponsored nodes with their private vendor lanes, and certification packs.
  • Service identities: a key carries a workload and a scope, not merely a team.
  • Regulator and academic seats, built and enforced — read-only across every world, or a world of one’s own.
  • A proposed tokenised-money extension, available for testing today in a world that opts in, standing outside the regulated providers, awaiting the Bank’s view — while every regulated provider in the simulation refuses virtual-asset products, citing its article.

What is next

  • The Central Bank’s QR standard and the SGPI operating rules, taken into the rule catalogue as each instructivo lands.
  • The NCR machines on the floor: the machine lane is built and only software has ever driven it, so the node stays planned until a machine is connected.
  • The first sponsored node with a partner institution.
  • Certification as a priced product — per run and per scenario pack.

What waits on the Bank

  • 10+ open assumptions the simulator runs on, and every run report names the ones it ran under.
  • Where the Pagos al Instante eight-minute clock and the Art. 57 four-minute clock start: at the sender’s acceptance, at the LBTR, or at the receiving participant’s acknowledgement.
  • Which roles are mandatory participants in the SGPI, and from when.
  • Who publishes the reason codes a returned direct debit or direct credit must carry.
  • Whether the electronic-payment-account regime reaches a token, whether virtual-asset service providers are obligated subjects, and how the Reglamento’s prohibition meets the securities regulator’s.

The questions are written up as a consultation to the Banco Central, open to read: Waiting on the Bank — the open questions

Governance

Verified foundations

Everything the simulation asserts rests on a checked source: 136 sources verified against their primary texts. In the official taxonomy of innovation facilitators this is a regulatory accelerator or regtech lab — not a sandbox, and Art. 83 is a no-objection filing duty, not a sandbox regime.

180+

On “digital twin”

Today this is a simulation, not a digital twin in the strict sense: there is not yet a finished system to be a twin of, since the instant-payments system is being built now. Our aim is to become the true digital twin of the Dominican financial ecosystem as it takes shape, following the work and guidelines of the Central Bank, the Superintendencia and the industry.

The ask

Contact

Partnerships and team keys: partners@cemi.ai · Investment: invest@cemi.ai

Carlos Miranda Levy · Coordinator of CEMI’s Enhanced Intelligences