LeadSimple API
LeadSimple ships a public OpenAPI 3.0 reference and self-serve API keys with read only scoping, covering contacts, deals, processes and webhooks. Gaps are unsigned webhooks, no SDKs, no sandbox, no OAuth and no versioning policy.
Frequently asked questions
LeadSimple scores B+ on Supergood's API Report Card. LeadSimple ships a public OpenAPI 3.0 reference and self-serve API keys with read only scoping, covering contacts, deals, processes and webhooks. Gaps are unsigned webhooks, no SDKs, no sandbox, no OAuth and no versioning policy.
LeadSimple has a workable official integration path. Most engineering teams can build against it directly. Solid API with minor gaps
LeadSimple is a CRM, shared inbox, and process automation platform built for third party residential property management companies.
Real Estate & Property. A property management company routes new owner leads from its website and portals into LeadSimple pipelines, auto assigns and follows up via email, text, and calls, and tracks conversion to signed management agreements.
LeadSimple states that thousands of property management companies use it, but publishes no exact customer or door count.
Owner leads and deals with pipeline stage, source, value, and cost; contacts (owners, tenants, vendors, prospects) with custom fields; operational processes and their stages, steps, tasks, assignees, and SLA state (move ins, move outs, renewals, maintenance work orders); properties, units, and property groups synced from the PMS with market and current rent; call logs, text messages, conversations, and notes across the shared inbox; users and assignment data; and deal performance reports (aging, cost, persistence, time to contact, time to close).
Founded in 2013 and headquartered in Seattle, Washington, LeadSimple is a bootstrapped company backed by a Bigfoot Capital line of credit.
Webhooks carry no payload signature and no documented retry or replay policy. Money fields such as deal value and unit rents are returned as JSON strings rather than numbers, and errors carry no stable machine code. Full sourced list under Sources below.
Common alternatives include Property Meld, Latchel, Aptly, HubSpot, Follow Up Boss. Graded alternatives appear under "More from the report card" below.
Supergood's grades measure one thing: can a customer's engineering team get their own data out programmatically? Supergood checks six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and rolls them into a letter grade. Supergood re-verifies grades, and they only move on evidence.
Not that we could find. There is no official LeadSimple MCP server in any public registry, and no maintained community server we're aware of. We re-verify this periodically — report an inaccuracy below if we missed one.
Not natively. LeadSimple doesn't publish an MCP server, so MCP clients like Claude, Cursor, and Codex have nothing to connect to out of the box. If that changes, this page will reflect it.