OTC crypto exchange development company · engineering partner
OTC crypto exchange development,
engineered as a desk you own.
TrustChange is an OTC crypto exchange development company for EU-facing crypto brokers, licensed VASPs, PSPs, EMIs, neobanks and banks. We engineer bespoke crypto OTC trading desk software end to end — the client RFQ surface, the dealer console, the pricing engine, custody and settlement, compliance controls and audit evidence — as client-owned code, not a SaaS licence with a per-ticket fee.
- EU-based engineers
- MiCA-ready architecture
- AML & Travel Rule aware
- GDPR-aware storage
What "OTC" means here
Crypto OTC trading desk software without the SaaS strings
Most searches for a crypto OTC trading desk software provider surface multi-tenant SaaS with fixed pricing rules and a per-ticket fee. We work the other way. TrustChange is an OTC crypto exchange development partner: your brand, your clients, your pricing, your custody, your code. What you buy is engineering — every rule version and every ticket stays on your platform, not on someone else's.
Deciding whether to buy, build or wrap? Start with CTO advisory. Order-book venues live on crypto exchange development, and matching-engine depth on crypto matching engine development.
Subsystems
Three subsystems inside every OTC crypto trading desk we build
An OTC platform is not one service. It is a client surface, a pricing engine and a settlement path that must agree on every ticket. We build the three together, on one plan, with one team accountable end to end.
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01
Client & dealer surface
The trader-facing RFQ app for your clients and the dealer console for your desk — quote requests, price stream, ticket confirmation, blotter and post-trade views.
- RFQ & streaming quotes
- Ticket blotter
- Post-trade & statements
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02
Quote & pricing engine
The core that priced-tags a request: liquidity sourcing, spread, credit and inventory limits — deterministic, replayable and versioned against the rule set that fired.
- Liquidity aggregation
- Spread & credit rules
- Deterministic replay
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03
Settlement & audit
Trade capture into a double-entry ledger, custody handoff for the crypto leg, fiat rail for the cash leg and a signed audit log a reviewer can read.
- Double-entry capture
- MPC / HSM signing
- Tamper-evident log
Stack
What sits behind crypto OTC trading desk software
Eight layers, one system. Every layer names an owner, a control and a piece of audit evidence — nothing is left implied under the "OTC" label.
Custody depth lives on wallet and custody engineering. Fiat legs run through on- and off-ramp integration and payment gateway engineering. Rule mapping: compliance engineering.
| Layer | What we build |
|---|---|
| Client surface | Web and API-first RFQ interfaces under your brand, with role-based access for corporate and institutional clients Same product surface, no shared multi-tenant backend behind it. |
| Dealer console | Blotter, quote tools, market view, credit view and manual override with four-eyes gating Every override is who / what / why / when, retained per your policy. |
| Quote engine | Rule-based pricing with liquidity sourcing across venues and OTC counterparties, spread and skew logic Pricing rules are configuration, not code — reviewable in the admin console. |
| Risk & credit | Pre-trade credit checks, per-client limits, position and inventory guards, self-trade prevention Rules run before a quote is streamed; every decision writes to the audit log. |
| Custody & settlement | MPC or HSM signing for the crypto leg; card, SEPA and open-banking rails for the cash leg with reconciliation Every settlement carries a signed approval trail across both legs. |
| Compliance controls | KYC/KYB, sanctions and wallet-risk screening before ticket, Travel Rule on transfers, market-abuse controls where relevant Rules run inside the flow; every decision writes to the audit log. |
| Ledger & reporting | Double-entry ledger with daily reconciliation, trade capture, statements and export bundles Finance, ops and the auditor read the same source of truth. |
| Runtime & delivery | EU-hosted, CI/CD pipelines, observability, 24/7 on-call cover Your identity provider, your key custody, your data regions. |
RFQ path
How a ticket crosses the OTC desk
Every ticket in the crypto OTC trading desk software goes through the same gates before a settlement is written. Speed comes from tuning the pipeline, not from skipping a step or trusting a single verdict.
- 01
Request
Real time
A client submits an RFQ from the app or API. Client, instrument, side and size are stamped with a request id.
- 02
Credit
Sub-second
Per-client credit and inventory limits run before a quote is prepared. A hard block returns a reason, not a silent fail.
- 03
Price
Sub-second
The engine sources liquidity and applies your spread and skew rules; the rule version is stored with the quote.
- 04
Screening
Sub-second
Sanctions, PEP and wallet-risk vendors return verdicts before the ticket is offered; results attach as evidence.
- 05
Confirm
Ticket-bound
The client accepts; the dealer sees the ticket in the blotter; a four-eyes gate applies above defined thresholds.
- 06
Settle
T+0 or agreed
Both legs settle — MPC/HSM signing on the crypto side, PSP/bank rail on the cash side. Ledger writes close the loop.
Delivery
How we deliver an OTC crypto exchange development project
Five steps, in this order. Regulated desk work runs inside the product backlog — no separate compliance phase bolted on before launch, no big-bang release of an untested OTC platform.
- 01
Scoping
Weeks 1–2
We map clients, assets, liquidity venues, credit model, licence context and the risk you must stand behind. Output: a scope, a control map and a costed plan.
- 02
Architecture
Weeks 3–4
Pricing model, credit engine, custody handoff, settlement path and reporting written down first. Regulatory constraints shape the design.
- 03
Build
Two-week sprints
Client surface, dealer console, quote engine and settlement ship in slices. Each merge runs tests, static checks and a dependency scan.
- 04
Hardening
Before launch
Load work at target ticket rate, failure drills, replay against historical tickets and a third-party pen-test window. Recovery is rehearsed with your desk staff.
- 05
Launch and run
Cutover + ongoing
Named engineers on 24/7 cover. Runbooks, dashboards and the audit bundle are handed to your team on day one, with a documented on-call rota.
Engagement
Four ways to buy your OTC crypto trading desk build
Same engineers, same standard. Only the commercial shape changes.
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Fixed-scope build
A defined OTC platform at a fixed price and date. Best when assets, venues and clients are settled.
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Dedicated team
A standing squad with a lead. Best for long roadmaps and new counterparties each quarter.
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Staff augmentation
Senior engineers inside your team. Best when you already own the plan and need pricing-engine depth.
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CTO advisory
Architecture and buy-vs-build review before you commit. Best at the design stage.
Questions
FAQ: OTC crypto exchange development
Six answers up front on scope, off-the-shelf trade-offs, OTC-vs-order-book, pricing, compliance and support. Bring the rest to the call.
What does OTC crypto exchange development from TrustChange actually cover?
We engineer a bespoke, client-owned OTC trading desk platform end to end — the client RFQ surface, the dealer console, the quote engine, the credit and risk layer, custody and settlement, compliance controls and the reporting. Everything ships as source code in your repositories, with the IP assigned to you. There is no per-ticket fee, no shared multi-tenant backend and no vendor gate between you and your clients.
How is your work different from off-the-shelf crypto OTC trading desk software?
Off-the-shelf crypto OTC trading desk software bundles a fixed pricing model and a licence fee. As an OTC crypto exchange development company, TrustChange shapes the RFQ flow, the pricing rules, the credit model and the settlement path around your actual desk — the clients you quote, the venues you source from, the assets you hold and the audit trail your regulator expects. A bespoke build takes longer up front, but you keep every rule and every decision.
How does the OTC platform relate to an order-book venue?
They are distinct surfaces on the same core. An order-book venue runs continuous matching for many small tickets; an OTC desk runs bilateral RFQs for larger, high-touch tickets. The reference build lets both share the same custody, ledger, screening and audit spine, so finance and MLRO see one source of truth even when the desk quotes off-book. A client can run OTC alone, or add it beside a matching venue.
How is liquidity sourced and how does pricing work under the hood?
The quote engine aggregates prices from venues, market makers and OTC counterparties you have credit with, then applies your spread, skew and credit rules to produce a client quote. Rules are configuration, not hard-coded — they are versioned in the admin console, reviewable by desk heads and reproducible from the audit log. Pricing decisions are deterministic and replayable after the fact, which is what makes them defensible.
How are MiCA, AML/Travel Rule, market-abuse and GDPR engineered into the OTC desk?
TrustChange is an engineering partner, not a law firm — your legal advisers and MLRO set the policy, we ship the controls and the evidence. That means KYC/KYB in onboarding, sanctions/PEP and wallet-risk screening before quote, Travel Rule data on crypto transfers, MiCA-aware fields on relevant flows, market-abuse rules where they apply, and GDPR-aware storage with data mapping and retention. Nothing about licences, opinions or supervisor approvals is claimed on your behalf.
Do you also run the OTC platform after launch, or hand it over?
Both are on the table. Most clients start with named TrustChange engineers on 24/7 cover during the first months while their own team ramps up, then take the platform in-house with runbooks, dashboards and an on-call handover we author together. Some keep us on as a dedicated development team or on staff augmentation for new-asset, new-counterparty and rule-roadmap work.
Book a discovery call for OTC crypto exchange development
Bring the client list, the asset list, the liquidity venues, the licence context and the launch date. We come back with a control map, an architecture view and a costed plan for an OTC desk you own end to end. No demo theatre.