Accord Learn
Guides for agent work agreements.
Evergreen explainers for developers, researchers and agents learning how Accord records terms, verification and settlement.
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The fastest path from the agent payments stack to a runnable Accord lifecycle.
The Agent Payments Stack: MCP, x402, AP2 and Accord
A practical map of the agent payments stack: MCP for tool access, x402 for HTTP payment, AP2 for payment authority and Accord for work verification.
11 min read PrinciplePayment Verification Is Not Work Verification
Why paid AI agent systems need separate records for payment, promised work, verifier decisions and settlement evidence.
10 min read FoundationWhat Are Agent Work Agreements?
A practical explanation of agent work agreements: terms, authority, verification and settlement records for autonomous software work.
7 min read TutorialHow to Run the Paid MCP Repository Audit Demo
A practical walkthrough of the safest first Accord demo: the mock-rail paid MCP repository audit lifecycle.
7 min readBuild
Implementation guides for paid tools, HTTP flows, verifiers and rail adapters.
Production Checklist for Paid MCP Tools
A builder checklist for paid MCP tools covering agreements, pricing, buyer policy, verifier design, receipts, replay protection and audit gates.
12 min read TransportAccord/MCP for Paid and Verifiable Tools
How Accord/MCP adds payment and completion semantics around MCP tools used by autonomous agents.
7 min read TransportHow Accord/402 Works
A step-by-step guide to Accord/402, the HTTP paid-resource flow that combines payment proof with agreement and verification receipts.
7 min read ArchitectureRail Adapters in Accord Protocol
A guide to Accord rail adapters and how they separate agreement semantics from settlement mechanisms.
6 min read Provider guideHow to Become an Accord-Compatible Provider
A practical onboarding path for APIs, MCP tools and agent services that want to emit Accord agreements, verification receipts and settlement receipts.
8 min readCompare
How Accord relates to adjacent payment, authorization and tool layers.
Accord Protocol vs x402
How Accord and x402 fit together: x402 verifies paid HTTP access, while Accord verifies completion of the work around that payment.
6 min read ComparisonAccord Protocol vs MCP
MCP connects agents to tools. Accord adds paid-work terms, verification receipts and settlement records around tool calls.
6 min read ComparisonAccord Protocol vs AP2
How Accord relates to AP2-style authorization: AP2 helps express authority, while Accord records work terms, verification and settlement.
6 min readTrust and safety
Verifier design, wallet policy, conformance and audit gates for safer agent payments.
Accord Launch Readiness Gates
Why Accord is holding broad public launch until the evidence, provider onboarding and audit posture are polished.
6 min read Verifier designHow to Design Verifiers for Paid Agent Work
A practical guide to verifier design for paid AI agent workflows: deterministic tests, human review, model graders, committees and receipt boundaries.
12 min read PolicyAgent Wallet Policy: How to Keep Autonomous Spend Bounded
A guide to buyer-side policy for agent wallets: spend caps, recipient allow-lists, rails, approvals, signer isolation and receipt-aware settlement.
11 min read SafetyConformance, Audits and Mainnet Gates for Agent Payment Rails
How to separate Accord compatibility, external audits, rail risk, verifier assumptions and mainnet readiness for agent payment systems.
11 min read ConformanceAccord Conformance Levels L0-L4
What Accord conformance levels mean, what they test and why conformance is not the same as production certification.
6 min read SafetyAudit-Gated Mainnet Policy for Accord
Why Accord keeps mainnet use blocked by default until signed audit manifests explicitly allow relevant scripts or contracts.
6 min read SafetyWhat Accord Conformance Does Not Prove
A safety-focused explanation of the limits of conformance testing and why compatibility is not production certification.
6 min read PolicyBuyer Policy for Agent Wallets
How buyer-side policy can limit agent spend and connect payment authority to Accord agreements and receipts.
7 min readReference rails
Settlement receipt design, Ergo and the rail-agnostic Accord model.
Live Testnet Evidence: Accord Base Sepolia Contract Rail
Accord completed a live Base Sepolia contract rail pilot with deployed contract evidence, testnet transactions, audit-gate checks and L4 conformance.
8 min read Protocol objectSettlement Receipts and Agent Payment Records
How Settlement Receipts record the economic closeout of agent work across rails without making Accord a payment processor.
6 min read Protocol objectVerification Receipts for AI Agents
Why verification receipts matter for autonomous agent workflows and how they record accepted, rejected or partially accepted work.
7 min read Reference railWhy Ergo Is the First Accord Reference Rail
Why Accord uses Ergo as its first reference programmable settlement rail, and what claims should be avoided until audits are complete.
7 min read