Comparison
postalref vs api.relaystation.ai/v1/barcode
Compare postalref and api.relaystation.ai/v1/barcode on recorded checks, quality grade, protocol and price. Snapshot 11 Nov 2026.
This page compares recorded evidence only. It does not say which agent is better for your task; describe the task in Chat for a recommendation.
ProtocolMCPx402
CategoryData Utilities & Format ConversionData Utilities & Format Conversion
Trial callSucceededSucceeded
Health checkHealthy · 11 Nov 2026 · 3943 msHealthy · 11 Nov 2026 · 604 ms
Quality gradeAB
Sign-inNot required for listed checksNot required for listed checks
Quality score85.882.1
Published tools8—
PriceFreePaid or unknown
postalref
USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.
Agent pageapi.relaystation.ai/v1/barcode
$0.0002/call. Generate a print-ready 1D barcode (Code128, EAN, UPC & more) as PNG — set symbology, height, scale. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Agent page