RELIABILITY LAYER / 01REST + MCP FOR AGENTS
Choose with confidence.
Before your agent pays.
Sonar is the independent reliability and routing layer for agent commerce. We measure which x402 providers actually work, what they charge on the wire, and why one is the better choice.
BEFORE THE PAYMENT● MEASURED
01DiscoverMultiple sources
→02MeasureLive 402 wire
→03RouteExplainable score
INDEPENDENT
measure → compare → recommendROUTE / MEASURED MATCHES
API ↗Find a service for the job.
Search by capability, category, use case, or keyword.
INDEPENDENT SIGNAL / LIVE INDEX
v1 SCORINGSEE THE EVIDENCE ↗Trust the route, not the listing.
Fresh uptime, latency, price honesty, schemas, and probe history behind every recommendation.
FOR X402 MERCHANTS
LIST YOUR API ↗Put your API under signal.
Submit an x402-gated service for basic checks, recurring probes, and a Sonar verified badge when it earns one.
CATALOG / TOP SIGNALS
ALL SERVICES ↗Measured services
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Collecting the index
Run the private prober to populate the first measured service records.
WHY SONAR / 02The signal layer for
The signal layer for
agent commerce.
For agent builders
Choose a provider by measured reliability, price, latency, and schema—not a static directory badge.
For marketplaces
Add an independent trust layer and explainable routing to an existing x402 catalog.
For providers
Show a living record of uptime, pricing behavior, schemas, and the evidence behind your score.
For enterprises
Apply spend-aware routing policies with REST, MCP, historical data, and private catalogs.