Circuit API
Circuit's Spoke Dispatch product has a documented REST API for plans, stops, drivers, and routes, plus a webhook API for live events. Access is bundled into paid Dispatch plans from $100 to $750 a month, with no sandbox or trial keys. Production still runs a v0.2b beta version.
Frequently asked questions
Circuit scores D+ on the API Report Card. Circuit's Spoke Dispatch product has a documented REST API for plans, stops, drivers, and routes, plus a webhook API for live events. Access is bundled into paid Dispatch plans from $100 to $750 a month, with no sandbox or trial keys. Production still runs a v0.2b beta version.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
Circuit (legal entity Circuit Routing Limited, rebranded company-wide to Spoke in late 2025; the getcircuit.com domain still resolves and 301-redirects to spoke.com) is a London, UK headquartered last-mile delivery software company founded by Jack Underwood (CEO, co-founder) and Pawel Woznicki (CTO, co-founder).
Vertical: Fleet / Trucking / Logistics, specifically last-mile delivery route planning and courier dispatch, with overlap into Field Service Management for delivery-style field operations. Target Market: Two distinct segments. Individual drivers download Spoke Route Planner on iOS or Android, type or paste in 20–200+ stop addresses (manually, by photo OCR of a manifest, or by importing a CSV/spreadsheet on the web companion), run an optimization to get a turn-by-turn ordered route, and hand off navigation to Google Maps, Apple Maps or Waze.
7/10 within consumer/SMB last-mile route planning.
For Spoke Dispatch customers, Circuit/Spoke is the operational system of record for: the daily delivery plan (per team, per day, optimization parameters), the stops in that plan (recipient identity and contact details, address + geocode, package count and weight, barcodes, time windows, attempt duration, payment-on-delivery, custom order info), drivers and depots (work hours, vehicles, start/end locations), the optimized route (assigned sequence, ETAs, distance/duration), distribution state (which driver received which route), live driver/stop events (en route, arrived, completed, failed, rescheduled, signature/photo captured), proof of delivery artifacts (photos, signatures, signee name, attempted location, barcode scans) and the recipient communication trail (tracking page views, SMS/email ETA notifications).
Founded in 2017 with the consumer Route Planner app, with Circuit for Teams added in 2020 and a company-wide rebrand to Spoke in 2025.
**API key only**, passed via HTTP Basic or Bearer, no OAuth, no scoped tokens, no per-user permissions; rotating or revoking keys is a manual admin action. API surface still versioned as **`v0.2b`** (beta) despite being the production public API, signaling potential breaking changes and limited long-term version guarantees. Full sourced list under Sources below.
Common alternatives include Onfleet, OptimoRoute, Route4Me, Routific, Upper Route Planner, RoadWarrior. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.
Yes. Supergood maintains an unofficial Circuit API and MCP server so AI agents and internal tools can read and write Circuit data. See the Circuit integration docs at supergood.ai/docs/circuit-api.