Zulip
Zulip is an open-source team chat application with a unique topic-based threading model. Zulip's APIs power the web and mobile apps and provide REST endpoints, incoming webhooks, outgoing webhooks, and event-driven integrations to connect Zulip with external services.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Zulip the way a machine reads it — 43 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Zulip scores 33.6/100 (thin), with a separate agent-readiness read of 26/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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How we profile Zulip
Each block below is one kind of artifact we hold for Zulip. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 17
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Zulip REST API
The Zulip REST API powers the Zulip web and mobile apps. It provides programmatic access to messages, streams, users, organizations, and all other Zulip functionality. Anything ...
Zulip Events API
The Zulip Events API delivers real-time updates from a Zulip server to a client via an HTTPS long-poll. Clients register an event queue via POST /api/v1/register, then call GET ...
Zulip Webhooks
Zulip supports both incoming webhooks (allowing third-party services to push data to Zulip) and outgoing webhooks (allowing Zulip to send HTTP POST payloads to external services...
Zulip authentication API
The authentication API from Zulip — 4 operation(s) for authentication.
Zulip bots API
The bots API from Zulip — 1 operation(s) for bots.
Zulip channels API
The channels API from Zulip — 23 operation(s) for channels.
Zulip drafts API
The drafts API from Zulip — 4 operation(s) for drafts.
Zulip invites API
The invites API from Zulip — 5 operation(s) for invites.
Zulip messages API
The messages API from Zulip — 16 operation(s) for messages.
Zulip mobile API
The mobile API from Zulip — 6 operation(s) for mobile.
Zulip navigation_views API
The navigation_views API from Zulip — 2 operation(s) for navigation_views.
Zulip real_time_events API
The real_time_events API from Zulip — 4 operation(s) for real_time_events.
Zulip reminders API
The reminders API from Zulip — 2 operation(s) for reminders.
Zulip scheduled_messages API
The scheduled_messages API from Zulip — 2 operation(s) for scheduled_messages.
Zulip server_and_organizations API
The server_and_organizations API from Zulip — 16 operation(s) for server_and_organizations.
Zulip users API
The users API from Zulip — 29 operation(s) for users.
Zulip webhooks API
The webhooks API from Zulip — 1 operation(s) for webhooks.
Scroll within the panel for all 17 ·
Open Collections 16
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONZulip REST authentication API
OPEN COLLECTIONZulip REST authentication bots API
OPEN COLLECTIONZulip REST authentication channels API
OPEN COLLECTIONZulip REST authentication drafts API
OPEN COLLECTIONZulip REST authentication invites API
OPEN COLLECTIONZulip REST authentication messages API
OPEN COLLECTIONZulip REST authentication mobile API
OPEN COLLECTIONZulip REST authentication navigation_views API
OPEN COLLECTIONZulip REST authentication real_time_events API
OPEN COLLECTIONZulip REST authentication reminders API
OPEN COLLECTIONZulip REST authentication scheduled_messages API
OPEN COLLECTIONZulip REST authentication server_and_organizations API
OPEN COLLECTIONZulip REST authentication users API
OPEN COLLECTIONZulip REST authentication webhooks API
OPEN COLLECTIONZulip REST API
OPEN COLLECTIONScroll within the panel for all 16 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Zulip Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Zulip Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Zulip Finops
FINOPSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Zulip Events API
The Zulip Events API delivers real-time updates from a Zulip server to a client via an HTTPS long-poll. Clients first register an event queue by calling POST /api/v1/register, t...
ASYNCAPISpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Zulip API Rules
SPECTRALSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Zulip — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Company 2
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/zulip · machine-readable index on apis.io
This is an independent, third-party profile of Zulip, 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.
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