01 · Overview
What is Traderline?
Traderline is a free desktop trading application for Polymarket and Betfair, built around a vertical ladder, faster manual execution and market visibility. The Polymarket workflow connects an existing funded account and places orders while funds and positions remain on Polymarket; the Betfair workflow uses its own venue connection. There is no Traderline subscription or gated access.
02 · Best for
Who is Traderline best for?
Best for
Active desktop traders who work across the two supported venues.
Not ideal for
Users seeking browser-only access, automated strategies or identical cross-venue contracts.
Polymarket setup requires exporting the wallet signer private key from Magic and pasting it into the installed app. Use only the official download, protect the key, and note that availability and features differ by venue and jurisdiction.
03 · Access & execution
How do access and execution work?
Scope-aware product facts
What to look for
Surfaces
Access modes
Execution modes
Pricing offers
Data capabilities
04 · Data provenance
Data provenance
Current coverage: PartialA transparent record of which official sources were checked and when.
05 · Public footprint
Public footprint
Current public signals from official platform sources, shown with their observation dates.
A transparent record of which official sources were checked and when.
06 · Sources & review
How was Traderline reviewed?
Documentation strength: PartialA transparent record of which official sources were checked and when.
Official product sources were checked for documented identity, scope, access, pricing and limitations. This is not a security audit, performance test or endorsement.