AI Agent Payments & Crypto Market Making Blog

Research and implementation notes from QBT Labs on x402, AMP, MPP, stablecoin micropayments, agent API monetization, OpenMM, and the market-making infrastructure we operate in production.

9 min read
AI Payments

After the Signature: Receipts, Settlement, and Audit for AI Agent Payments

The companion piece to Beyond the Wallet. That post covered the policy layer in front of the signature; this one covers the operations layer behind it — receipts, settlement, audit logs, and failure handling.

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AI Agent PaymentsReceiptsSettlement
10 min read
AI Payments

How API Providers Can Monetize AI Agents

Subscriptions and API keys were built for humans, not agents. A practical guide to x402, AMP, and MPP — plus a concrete provider checklist for shipping agent-native pricing in under a week.

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AI Agent API Monetizationx402AMP
Beyond the Wallet: A Builder's Guide to Policy-Controlled Agent Payments with x402
10 min read
AI Payments

Beyond the Wallet: A Builder's Guide to Policy-Controlled Agent Payments with x402

Giving an agent a wallet is the easy part. Production agent payments need budgets, allowlists, signer isolation, receipts, and policy before any signature is produced.

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x402AI AgentsAgent Payments
Why AI Agents Still Can't Work Alone: The $0 Problem
6 min read
AI Payments

Why AI Agents Still Can't Work Alone: The $0 Problem

AI agents can reason and plan, but they can't pay. x402 lets agents pay for APIs mid-workflow — no wallets, no humans.

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x402AI AgentsPayments
How to Choose a Crypto Market Maker in 2026: What Token Projects Actually Need
12 min read
Market Making

How to Choose a Crypto Market Maker in 2026: What Token Projects Actually Need

Choosing a crypto market maker in 2026 is one of the most consequential vendor decisions a post-TGE project makes. This guide gives you a clear framework for evaluation.

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Market MakingToken ProjectsLiquidity
Why Token Projects Lose Money with the Wrong Market Maker
7 min read
Market Making

Why Token Projects Lose Money with the Wrong Market Maker

Most token projects think about market making wrong. Loan dumping, fake volume, and wide spreads cost more than the monthly fee. Here's how to avoid it.

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Market MakingToken ProjectsDue Diligence
AMP Deep Dive: Channel State, Settlement, and Security
12 min read
AI Infrastructure

AMP Deep Dive: Channel State, Settlement, and Security

How does channel state actually work on different chains? What makes AMP settlement secure? A technical deep dive for builders.

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AMPPayment ChannelsCardano
Inside Our Market Making Stack: From Signal to Execution
10 min read
Market Making

Inside Our Market Making Stack: From Signal to Execution

Most market making systems are black boxes. This post opens ours — from the first tick to the filled trade.

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Market MakingOpenMMTrading
x402 vs AMP vs MPP: Choosing the Right Payment Protocol for AI Agents
8 min read
AI Payments

x402 vs AMP vs MPP: Choosing the Right Payment Protocol for AI Agents

The agentic economy needs payment rails. x402, AMP, and MPP each solve the problem differently. Here's how to choose.

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x402AMPMPP
Machine-to-Machine Payments: How AI Agents Will Pay for Services
8 min read
AI Infrastructure

Machine-to-Machine Payments: How AI Agents Will Pay for Services

AI agents are becoming autonomous. But they can't pay for things on their own — until now. x402 and MPP are changing how machines transact on the internet.

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x402MPPAI Agents
What Token Projects Should Know Before Engaging a Market Maker
10 min read
Market Making

What Token Projects Should Know Before Engaging a Market Maker

Red flags, due diligence checklists, and a practical framework for choosing between self-service and managed market making. The founder's guide to evaluating market making proposals.

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Market MakingToken ProjectsDue Diligence
Multi-Exchange Market Making: Why We Run on CEXs and DEXs Simultaneously
9 min read
Market Making

Multi-Exchange Market Making: Why We Run on CEXs and DEXs Simultaneously

Liquidity fragmentation across CEXs and DEXs hurts token projects. Learn how multi-exchange market making creates price consistency, captures cross-venue spreads, and why OpenMM unifies it all.

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Market MakingCEXDEX
The Anatomy of a Market Maker: How We Think About Spreads
9 min read
Market Making

The Anatomy of a Market Maker: How We Think About Spreads

Spread mechanics, adverse selection, inventory risk, and volatility management. A deep dive into how market makers actually think about pricing — and how OpenMM automates it.

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Market MakingSpreadsRisk Management
Crypto Market Making Pricing Guide: What It Really Costs in 2026
7 min read
Market Making

Crypto Market Making Pricing Guide: What It Really Costs in 2026

Complete breakdown of crypto market making costs: retainer models ($2K-250K/mo), token loan deals (1-5% supply), hidden costs, and self-service alternatives. Real pricing benchmarks for 2026.

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Market MakingCryptoPricing
OpenMM vs Hummingbot: Which Crypto Trading Tool is Right for You?
10 min read
Comparisons

OpenMM vs Hummingbot: Which Crypto Trading Tool is Right for You?

Honest comparison of OpenMM and Hummingbot. Feature matrix, strengths, weaknesses, and when to choose each open-source trading tool.

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OpenMMHummingbotMarket Making
What is an MCP Server? Guide to AI Crypto Trading
8 min read
Tutorials

What is an MCP Server? Guide to AI Crypto Trading

Learn how MCP servers give AI agents real trading capabilities. Install OpenMM MCP in 60 seconds and let Claude trade crypto across 4 exchanges.

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MCPAI AgentsCrypto Trading
What Is Market Making? The Engine Behind Every Trade
10 min read
Market Making

What Is Market Making? The Engine Behind Every Trade

Every time you buy or sell a token, someone is on the other side of that trade. That someone is often a market maker — and without them, financial markets wouldn't function.

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Market MakingCryptoDeFi
Building High-Performance Cardano Indexers
12 min read
Infrastructure

Building High-Performance Cardano Indexers

How we achieved a 58x speedup — from 33 blocks/min to 1,916 blocks/min — by rethinking everything about our indexing pipeline.

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CardanoIndexersDeFi
DeFi Trading Bot Architecture: Lessons Learned
12 min read
Trading Bots

DeFi Trading Bot Architecture: Lessons Learned

Building a production-grade market making toolkit for Cardano native tokens across 4 centralized exchanges — architecture decisions, patterns, and hard-won lessons.

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Trading BotsDeFiArchitecture
Validator Node Operations: Security Best Practices
14 min read
Node Operations

Validator Node Operations: Security Best Practices

How we secure Cardano stake pools in production — from air-gapped key management to relay architecture — and how it compares to what the pros do across chains.

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ValidatorsSecurityCardano
14 min read
Infrastructure

How to Set Up a Cardano Stake Pool: A Complete Guide for 2026

Step-by-step guide to setting up a Cardano stake pool — from hardware requirements and Guild Operators setup to key management, pool registration, and monitoring.

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CardanoStake PoolSPO