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FedNow

Curated insights and technical field notes on FedNow.

Current note

The Fed payment account grants the rail, not the safety net

The newest published argument and its visual artifact lead the page.

Editorial posture

The library is organized around decisions that keep recurring in payment architecture, AI systems, and Doric product work. New notes lead by publish date, while topic lanes connect related arguments without turning the index into an archive wall.

Decision frame

Recommendation, rejected paths, and the operating proof behind the call.

Visual proof

Diagrams and original artifacts stay near the argument they explain.

Source posture

Public claims stay tied to released work or cited material.

Payments

The Fed payment account grants the rail, not the safety net

The Federal Reserve proposed a stripped-down payment account for legally eligible institutions. It can clear and settle on Fedwire, FedNow, and National Settlement Service, but it withholds the cushion that made sponsor-bank access survivable: no discount window, no intraday credit, no daylight overdraft, no interest on balances.

Lead essay

The current Doric argument leads the index ahead of the chronological archive.

Read the note

01 / Payments

Commerce architecture

Merchant-of-record decisions, checkout ownership, billing operations, settlement, reconciliation, and risk boundaries.

02 / AI tooling

Practical AI systems

Agentic commerce, multi-agent orchestration, model fine-tuning, runtime governance, and production deployment.

03 / Build notes

From idea to system

The design, architecture, and operating decisions behind Doric Stack products as they move from prototype to public release.

Latest Notes

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Dec 9, 2025 By Navin Agrawal Payments 3 min read

Instant rails now carry wire money. Do the controls?

FedNow matched RTP at a $10M network limit in November 2025 and added new risk rails - a receiver-account pre-check pilot, ScamClassifier reporting, an Exception Resolution Service, and 1,500+ banks live. Instant is treasury cash now, and batch-era controls just got a 24/7 bypass.

Jun 23, 2025 By Navin Agrawal Payments 3 min read

Instant rails: the reality behind the marketing

RTP cleared $246 billion in 2024 and the headlines said instant payments had arrived. The average transaction sizes tell a quieter story - this is high-value institutional money on a faster rail, not the consumer revolution that was promised.

Jun 16, 2025 By Navin Agrawal Payments 3 min read

RTP vs FedNow: the $10 million strategic divide

An $8M deal chopped into 16 payments because one bank used FedNow. With TCH-RTP at a $10M limit and FedNow at $500K, transaction size is quietly deciding which rail a corporate treasurer can use.