Signpost API
Signpost has a real REST API, documented in a support knowledge base article rather than a developer portal, scoped to one-way ingest of contacts and transactions for marketing automation. Credentials come from support, and auth details, rate limits, and webhooks are unpublished.
Frequently asked questions
Signpost scores D+ on the API Report Card. Signpost has a real REST API, documented in a support knowledge base article rather than a developer portal, scoped to one-way ingest of contacts and transactions for marketing automation. Credentials come from support, and auth details, rate limits, and webhooks are unpublished.
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.
Signpost is a customer-communication and marketing-automation platform for local home-services SMBs that bundles an AI voice receptionist (answers in 2 rings, blocks spam, routes urgent calls), a 24/7 live US-based receptionist service for overflow and complex calls, AI texting and 'Instant Responders' that reply to leads from Angi, Thumbtack, Facebook Messenger, and SMS, a unified Messaging Hub inbox that consolidates calls/texts/messages/leads in one view, automated review-request and reputation management (Google, Facebook, Yelp), and CRM/scheduling write-back so qualified jobs are booked directly into the customer's field-service system.
Vertical: AI + live receptionist, customer messaging, and review/reputation automation for local home-services SMBs (horizontal SMB SaaS with deep home-services packaging). A contractor owner or office manager logs into Signpost's web app or mobile app and sees a Messaging Hub inbox combining every inbound call (with AI/live receptionist summary), SMS thread, Angi/Thumbtack/Facebook lead, and review request in one timeline.
Signpost reported ~$24M revenue and ~20,000 customers in 2020 (per Latka), and post-acquisition sources estimate $35-42M annual revenue and ~150-250 employees as of 2024-2025.
Yes, for any home-services SMB that runs its inbound communications on Signpost, the platform is the system of record for the entire inbound customer-interaction graph: every inbound call (with AI receptionist transcript, live-receptionist notes, and call recording), every SMS thread, every Angi/Thumbtack/Facebook Messenger lead conversation, every Instant Responder auto-reply, every Google/Facebook/Yelp review request and the resulting review-response history, contact records with consent/opt-in status (TCPA-relevant), bulk SMS/email marketing send and engagement data, scheduled jobs booked into the connected FSM/CRM, and team activity logs.
Founded 2010 in New York City (originally as 'Postabon' before rebranding to Signpost).
API documentation is hosted in a support knowledge base article rather than a proper developer portal, no public OpenAPI spec, no Postman workspace, no SDKs. API access provisioning requires contacting support/sales for credentials rather than self-serve key generation. Full sourced list under Sources below.
Common alternatives include Podium, Birdeye, Thryv, Weave, Broadly, NiceJob. 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.