lemlist Signal Agents API
Signal Agents (watch lists) - create and configure watches, list the available signal types and filters, read detected signals, and push external signals.
lemlist Signal Agents API is one of 22 APIs that lemlist publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Signal Agents and Buying Signals. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 10 operations across 7 paths, and defines 16 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.
Requests are made against a single base URL, https://api.lemlist.com/api.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
lemlist Signal Agents API declares
1 security scheme
for authenticating requests.
It accepts HTTP basic authentication (basicAuth).
By default, every request must be authenticated.
Paths & Operations 10
Across 7 paths, the API surfaces 10 operations — 1 DELETE, 6 GET, 1 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.
Schemas 16
The contract defines 16 schemas that model the data the API accepts and returns. The most detailed are WatchListConfigHistoryEntry (12 properties), SignalSchema (11 properties), WatchListSchema (10 properties), WatchListFilterDescriptor (7 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from lemlist 12
Other APIs lemlist publishes across the network.
This is an independent, third-party profile of lemlist Signal Agents API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.