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Sam Sethi :pc2red: ⁂ profile picture
Sam Sethi :pc2red: ⁂
@Sam Sethi :pc2red: ⁂

Sam is the CEO of Truefans and the co-host of Podnews Weekly Review. Along with James Cridland, he talks with podcasters about their companies and career highlights. He brings his lifelong passion for all things podcasting and tech to this show and asks the key questions you'd ask, all in his fun, relaxed, informative and always-entertaining style. 

Podcasts:

- Podnews Weekly Review 
https://weekly.podnews.ne
TrueFans:- https://www.truefans.fm

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Recent Notes

Sam Sethi :pc2red: ⁂ · 2w
Summary of Economic Advantages These platforms make microtransactions economical through several structural changes: Bypassing Card Fees: By using stablecoins on L2 blockchains, they eliminate the ...
 Sam Sethi :pc2red: ⁂ profile picture
Sam Sethi :pc2red: ⁂ @Sam Sethi :pc2red: ⁂
"Payment as Authentication": Agents can use the act of payment (e.g., via x402) as authorization to access services, replacing user accounts and API keys.

Note: While significant infrastructure is being built (40,000 agents already on-chain, as of March 2026), current agentic payment volumes ($50M) are still microscopic compared to the $46 trillion in total annual stablecoin volume.
Sam Sethi :pc2red: ⁂ · 2w
3. Coinbase: x402 Protocol and Agentic Wallets Coinbase is building open-standards to allow AI agents to manage their own finances. x402 Protocol: Co-founded with Cloudflare, this is an open standar...
 Sam Sethi :pc2red: ⁂ profile picture
Sam Sethi :pc2red: ⁂ @Sam Sethi :pc2red: ⁂
Summary of Economic Advantages

These platforms make microtransactions economical through several structural changes:

Bypassing Card Fees: By using stablecoins on L2 blockchains, they eliminate the fixed fees (e.g., $0.30 + 3%) that make credit cards unsuitable for transactions worth only a few cents.

Programmable Money: Payments are integrated directly into the software workflow, allowing AI to make instant, autonomous, and 24/7 transactions.
1
Sam Sethi :pc2red: ⁂ · 2w
"Payment as Authentication": Agents can use the act of payment (e.g., via x402) as authorization to access services, replacing user accounts and API keys. Note: While significant infrastructure is being built (40,000 agents already on-chain, as of March 2026), current agentic payment volumes ($50M...
Sam Sethi :pc2red: ⁂ · 2w
2. Stripe: Agentic Commerce Protocol (ACP) Stripe is focusing on connecting AI agents directly to merchant, checkout, and banking systems. Agentic Commerce Protocol (ACP): A new open standard that...
 Sam Sethi :pc2red: ⁂ profile picture
Sam Sethi :pc2red: ⁂ @Sam Sethi :pc2red: ⁂
3. Coinbase: x402 Protocol and Agentic Wallets

Coinbase is building open-standards to allow AI agents to manage their own finances.

x402 Protocol: Co-founded with Cloudflare, this is an open standard designed for agent-to-agent payments. It works by using the HTTP 402 ("Payment Required") status code, allowing agents to pay for API access or data in real time without human intervention.

Agentic Wallets: A wallet infrastructure that allows AI agents to securely hold, send, and receive USDC.
1
Sam Sethi :pc2red: ⁂ · 2w
Summary of Economic Advantages These platforms make microtransactions economical through several structural changes: Bypassing Card Fees: By using stablecoins on L2 blockchains, they eliminate the fixed fees (e.g., $0.30 + 3%) that make credit cards unsuitable for transactions worth only a few ce...
Sam Sethi :pc2red: ⁂ · 2w
1. Circle: "Nanopayments" and Arc Blockchain Circle is targeting the infrastructure layer with tools specifically for autonomous, high-frequency, low-value transactions. Circle Nanopayments: This ...
 Sam Sethi :pc2red: ⁂ profile picture
Sam Sethi :pc2red: ⁂ @Sam Sethi :pc2red: ⁂
2. Stripe: Agentic Commerce Protocol (ACP)

Stripe is focusing on connecting AI agents directly to merchant, checkout, and banking systems.

Agentic Commerce Protocol (ACP): A new open standard that allows AI agents to securely interact with businesses, manage checkout flows, and process payments without needing to store or expose raw, sensitive financial credentials.
1
Sam Sethi :pc2red: ⁂ · 2w
3. Coinbase: x402 Protocol and Agentic Wallets Coinbase is building open-standards to allow AI agents to manage their own finances. x402 Protocol: Co-founded with Cloudflare, this is an open standard designed for agent-to-agent payments. It works by using the HTTP 402 ("Payment Required") status c...
Sam Sethi :pc2red: ⁂ profile picture
1. Circle: "Nanopayments" and Arc Blockchain

Circle is targeting the infrastructure layer with tools specifically for autonomous, high-frequency, low-value transactions.

Circle Nanopayments: This system is designed to allow AI agents to hold balances and make transactions as small as $0.000001, with fees that are just a fraction of a penny.

Circle Arc: A high-velocity blockchain intended to serve as a specialized, "always-on" layer for stablecoin payments, designed for speed and low cost.
1
Sam Sethi :pc2red: ⁂ · 2w
2. Stripe: Agentic Commerce Protocol (ACP) Stripe is focusing on connecting AI agents directly to merchant, checkout, and banking systems. Agentic Commerce Protocol (ACP): A new open standard that allows AI agents to securely interact with businesses, manage checkout flows, and process payments ...
Sam Sethi :pc2red: ⁂ profile picture
Good article to read in Bloomberg.

How Circle, Stripe, Coinbase, and others are building stablecoin-based agentic payments infrastructure that makes microtransactions between AI agents economical.

Sadly its behind a paywall.

https://www.bloomberg.com/news/articles/2026-03-07/stablecoin-firms-bet-big-on-ai-agent-payments-that-barely-exist

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I have posted the summary below in the following comments.