Protocol Specification
V2.0.0
The Payment-Aware
Orchestration Layer
for the Agentic Web.
Released January 2026
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Strategic Pivot
V1: Payment Processor
V2: Orchestration Layer
The insight
Payment is necessary but not sufficient. Developers don't just need to pay for APIs; they need a layer that optimizes for cost, guarantees reliability, and enforces agent guardrails.
Models Supported
106
Across 12 Publishers
Protocol Version
x402-v2
EIP-3009 Optimized
The Architecture
01
Orchestration Layer
The Brain. Routes each request to the optimal provider based on task, cost, quality, and availability.
RouterPolicyIntelligence
02
Settlement Layer
The Wallet. Handles session keys, facilitation, and on-chain verification via x402.
Session Keysx402Facilitators
03
Discovery Layer
The Bazaar. A global registry of x402-enabled services for agents to discover and use.
BazaarDiscoveryRanking
04
Provider Layer
The Models. Unified adapters for 50+ LLM publishers including OpenAI, Anthropic, and Google.
Unified APIHealth MonitorAdapter SDK
Feature Specifications
Router Engine (4.1)
- ✓ 5 Routing Modes (Cost, Quality, Speed...)
- ✓ Automatic Multi-Provider Failover
- ✓ Smart Rate-Limit Load Balancing
Semantic Cache (4.2)
- ✓ Embedding-based Similarity Search
- ✓ Namespace Isolation for Privacy
- ✓ Configurable Similarity Thresholds