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Selling eSIMs to AI agents: the seller's side, tried on a laptop in 32 seconds

Selling eSIMs to AI agents: the seller's side, tried on a laptop in 32 seconds

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7 min read
Renewals failing with code 54 are a credential problem, not a customer problem

Renewals failing with code 54 are a credential problem, not a customer problem

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1 min read
Crediting MT5 trading accounts from Indonesian QRIS and virtual account deposits, exactly once

Crediting MT5 trading accounts from Indonesian QRIS and virtual account deposits, exactly once

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5 min read
Giving an AI agent a card without giving it your wallet: the freeze, approve, refreeze pattern

Giving an AI agent a card without giving it your wallet: the freeze, approve, refreeze pattern

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4 min read
Stripe Tells You the Money Arrived. On-Chain, Nobody Does — Building a USDC Verification Engine

Stripe Tells You the Money Arrived. On-Chain, Nobody Does — Building a USDC Verification Engine

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6 min read
A quote lock's TTL is a cost parameter, not a UX one

A quote lock's TTL is a cost parameter, not a UX one

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2 min read
Listed, Not Listed: Putting AgentBadge on Circle's Agent Services Marketplace — and Telling Machines the Truth

Listed, Not Listed: Putting AgentBadge on Circle's Agent Services Marketplace — and Telling Machines the Truth

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5 min read
Designing a name-matching service people can argue with

Designing a name-matching service people can argue with

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3 min read
Pricing in dollars, paid in crypto: decimals, rounding and the one-cent problem

Pricing in dollars, paid in crypto: decimals, rounding and the one-cent problem

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5 min read
Defeating Friendly Fraud with Visa Compelling Evidence 3.0: The Exact Data Schema

Defeating Friendly Fraud with Visa Compelling Evidence 3.0: The Exact Data Schema

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3 min read
⁧مدفوعات Telr في ASP.NET Core: ما لا تقوله الوثائق⁩

⁧مدفوعات Telr في ASP.NET Core: ما لا تقوله الوثائق⁩

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2 min read
All Seven HIVE402 Revenue Streams Are Live — 31,379 Endpoints, 1,640 Operators, 4,497 Verified Payable

All Seven HIVE402 Revenue Streams Are Live — 31,379 Endpoints, 1,640 Operators, 4,497 Verified Payable

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5 min read
Handle the renewal, not just the first checkout

Handle the renewal, not just the first checkout

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1 min read
How can an AI agent buy a paid API endpoint inside MCP — and what does it actually cost?

How can an AI agent buy a paid API endpoint inside MCP — and what does it actually cost?

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3 min read
A signed payment can still unlock the wrong thing

A signed payment can still unlock the wrong thing

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1 min read
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