Signal Keys API
Pre-key bundle management endpoints for uploading and retrieving public key material used in the Signal Protocol key exchange.
Signal Keys API is one of 14 APIs that Signal publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.
This API exposes 1 JSON Schema definition.
Tagged areas include Keys. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, a JSON-LD context, and 1 JSON Schema.
This API exposes 3 operations across 2 paths, and defines 7 schemas. It is described by OpenAPI 3.2.0, at version 2.0.
Requests are made against a single base URL, https://chat.signal.org.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
Signal Keys API declares
2 security schemes
for authenticating requests.
It accepts HTTP basic authentication (basicAuth).
It accepts HTTP bearer tokens (bearerAuth).
By default, every request must be authenticated.
basicAuth— HTTP Basic authentication using the account UUID (or phone number) and password. The password is established during account registration.bearerAuth— Bearer token authentication used for certain provisioning and registration flows.
Paths & Operations 3
Across 2 paths, the API surfaces 3 operations — 2 GET, 1 PUT. Each is listed below with its method, path, parameters, and response codes.
Pre-key bundle management endpoints for uploading and retrieving public key material used in the Signal Protocol key exchange.
Schemas 7
The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are DevicePreKeyBundle (5 properties), SetKeysRequest (4 properties), KyberPreKey (3 properties), SignedPreKey (3 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 Signal 12
Other APIs Signal publishes across the network.
This is an independent, third-party profile of Signal Keys 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.