Zipkin website screenshot

Zipkin

Zipkin is an open source distributed tracing system for gathering timing data to troubleshoot latency problems in microservice architectures. It was originally developed at Twitter based on the Google Dapper paper, and is now a CNCF-related project maintained by the OpenZipkin community. Zipkin provides a collector, storage, and query service with a UI for visualizing trace data across distributed services.

Zipkin publishes 6 APIs on the APIs.io network, including Autocomplete API, Dependencies API, Health API, and 3 more. Tagged areas include Distributed Tracing, Observability, Open-Source, and Microservices.

The Zipkin catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Zipkin’s developer surface includes documentation and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.4/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0
AccessFreemium
6 APIs 6 Features 4 Use Cases
Distributed TracingObservabilityOpen-SourceMicroservices

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0
Composite quality — 33.4/100 · thin
Contract Quality 14.6 / 25
Developer Ergonomics 5.2 / 20
Access Clarity 3.2 / 20
Operational Transparency 1.4 / 13
Contract Governance 3.5 / 12
Discoverability 5.6 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/zipkin: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Zipkin Autocomplete API

Autocomplete tag key and value lookups

Zipkin Dependencies API

Query service dependency links

Zipkin Health API

Server health check

Zipkin Services API

Query registered service names

Zipkin Spans API

Submit and query span names

Zipkin Traces API

Search and retrieve distributed traces

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Zipkin API v2

OPEN COLLECTION

Zipkin API v2 Autocomplete API

OPEN COLLECTION

Zipkin API v2 Autocomplete Dependencies API

OPEN COLLECTION

Zipkin API v2 Autocomplete Health API

OPEN COLLECTION

Zipkin API v2 Autocomplete Services API

OPEN COLLECTION

Zipkin API v2 Autocomplete Spans API

OPEN COLLECTION

Zipkin API v2 Autocomplete Traces API

OPEN COLLECTION

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Zipkin Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Zipkin Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Zipkin Finops

FINOPS

Features 6

Notable capabilities this provider offers.

Distributed Tracing

End-to-end tracing of requests across microservices.

Span Collection

Ingestion of spans via HTTP, Kafka, and other transports.

Trace Search

Query traces by service, span name, tags, and time range.

Dependency Graph

Derived service-to-service dependency links from spans.

UI

Web-based UI for exploring traces and dependency graphs.

Pluggable Storage

Pluggable backends including in-memory, MySQL, Cassandra, and Elasticsearch.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Zipkin Context

4 classes · 20 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Zipkin API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Zipkin API Rules

6 rules · 2 errors 4 warnings

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Annotation

2 properties

JSON SCHEMA

DependencyLink

4 properties

JSON SCHEMA

Endpoint

4 properties

JSON SCHEMA

Span

13 properties

JSON SCHEMA

JSON Structure 4

JSON Structure definitions describing this provider's data shapes.

Zipkin Api V2 Annotation Structure

2 properties

JSON STRUCTURE

Zipkin Api V2 Dependency Link Structure

4 properties

JSON STRUCTURE

Zipkin Api V2 Endpoint Structure

4 properties

JSON STRUCTURE

Zipkin Api V2 Span Structure

13 properties

JSON STRUCTURE

Examples 4

Example request and response payloads for these APIs.

Zipkin Api V2 Get Dependencies Example

4 fields

EXAMPLE

Zipkin Api V2 Get Services Example

4 fields

EXAMPLE

Zipkin Api V2 Report Spans Example

4 fields

EXAMPLE

Zipkin Api V2 Search Traces Example

4 fields

EXAMPLE

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Zipkin Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Zipkin Agentic Access

9 operations · 1 acting

9 operations · 1 acting

AGENTIC

Use Cases 4

What developers build with this provider.

Microservices Latency Debugging

Identify slow services and operations in a microservice architecture.

Error Investigation

Trace failed requests across services to find error origin.

Service Dependency Mapping

Visualize which services call which, with call counts.

Performance Optimization

Identify hotspots and optimize critical-path operations.

Integrations 5

Pre-built integrations with other platforms and tools.

Brave

Java instrumentation library for OpenZipkin.

OpenTelemetry

OpenTelemetry can export traces to Zipkin.

Spring Cloud Sleuth

Spring framework integration emitting Zipkin traces.

Kafka

Span transport via Kafka for asynchronous ingestion.

Elasticsearch

Storage backend for spans and traces at scale.

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLD
JSONLD
 SpectralRules
SpectralRules
 Vocabulary
Vocabulary

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 SDKs
SDKs
 SDKs
SDKs
 SDKs
SDKs
 SDKs
SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: zipkin
name: Zipkin
description: Zipkin is an open source distributed tracing system for gathering timing data to troubleshoot latency problems
  in microservice architectures. It was originally developed at Twitter based on the Google Dapper paper, and is now a CNCF-related
  project maintained by the OpenZipkin community. Zipkin provides a collector, storage, and query service with a UI for visualizing
  trace data across distributed services.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zipkin.png
tags:
- Distributed Tracing
- Observability
- Open-Source
- Microservices
tags_raw:
- Distributed Tracing
- Observability
- Open Source
- Microservices
url: https://raw.githubusercontent.com/api-evangelist/zipkin/refs/heads/main/apis.yml
created: '2026-03-25'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: zipkin:zipkin-autocomplete-api
  name: Zipkin Autocomplete API
  description: Autocomplete tag key and value lookups
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Autocomplete
  properties:
  - type: OpenAPI
    url: openapi/zipkin-autocomplete-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
- aid: zipkin:zipkin-dependencies-api
  name: Zipkin Dependencies API
  description: Query service dependency links
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Dependencies
  properties:
  - type: OpenAPI
    url: openapi/zipkin-dependencies-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
- aid: zipkin:zipkin-health-api
  name: Zipkin Health API
  description: Server health check
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/zipkin-health-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
- aid: zipkin:zipkin-services-api
  name: Zipkin Services API
  description: Query registered service names
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Services
  properties:
  - type: OpenAPI
    url: openapi/zipkin-services-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
- aid: zipkin:zipkin-spans-api
  name: Zipkin Spans API
  description: Submit and query span names
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Spans
  properties:
  - type: OpenAPI
    url: openapi/zipkin-spans-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
- aid: zipkin:zipkin-traces-api
  name: Zipkin Traces API
  description: Search and retrieve distributed traces
  humanURL: https://zipkin.io/zipkin-api/
  tags:
  - Traces
  properties:
  - type: OpenAPI
    url: openapi/zipkin-traces-api-openapi.yml
  - type: Documentation
    url: https://zipkin.io/zipkin-api/
  - type: GitHubRepository
    url: https://github.com/openzipkin/zipkin
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-span-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-endpoint-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-annotation-schema.json
  - type: JSONSchema
    url: json-schema/zipkin-api-v2-dependency-link-schema.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-span-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-endpoint-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-annotation-structure.json
  - type: JSONStructure
    url: json-structure/zipkin-api-v2-dependency-link-structure.json
  - type: Examples
    url: examples/zipkin-api-v2-get-services-example.json
  - type: Examples
    url: examples/zipkin-api-v2-get-dependencies-example.json
  - type: Examples
    url: examples/zipkin-api-v2-report-spans-example.json
  - type: Examples
    url: examples/zipkin-api-v2-search-traces-example.json
common:
- type: License
  name: Apache-2.0
  url: https://github.com/openzipkin/zipkin/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/zipkin-agentic-access.yml
- type: DomainSecurity
  url: security/zipkin-domain-security.yml
- type: Website
  url: https://zipkin.io
- type: Documentation
  url: https://zipkin.io/pages/quickstart.html
- type: GitHubOrganization
  url: https://github.com/openzipkin
- type: SDKs
  url: https://github.com/openzipkin/brave
  name: Brave (Java)
- type: SDKs
  url: https://github.com/openzipkin/zipkin-go
  name: zipkin-go (Go)
- type: SDKs
  url: https://github.com/openzipkin/zipkin-js
  name: zipkin-js (JavaScript/Node.js)
- type: SDKs
  url: https://github.com/openzipkin/zipkin-ruby
  name: zipkin-ruby (Ruby)
- type: JSONLD
  url: json-ld/zipkin-context.jsonld
- type: SpectralRules
  url: rules/zipkin-spectral.yaml
- type: Vocabulary
  url: vocabulary/zipkin-vocabulary.yaml
- data:
  - name: Distributed Tracing
    description: End-to-end tracing of requests across microservices.
  - name: Span Collection
    description: Ingestion of spans via HTTP, Kafka, and other transports.
  - name: Trace Search
    description: Query traces by service, span name, tags, and time range.
  - name: Dependency Graph
    description: Derived service-to-service dependency links from spans.
  - name: UI
    description: Web-based UI for exploring traces and dependency graphs.
  - name: Pluggable Storage
    description: Pluggable backends including in-memory, MySQL, Cassandra, and Elasticsearch.
  name: Features
  type: Features
- data:
  - name: Microservices Latency Debugging
    description: Identify slow services and operations in a microservice architecture.
  - name: Error Investigation
    description: Trace failed requests across services to find error origin.
  - name: Service Dependency Mapping
    description: Visualize which services call which, with call counts.
  - name: Performance Optimization
    description: Identify hotspots and optimize critical-path operations.
  name: UseCases
  type: UseCases
- data:
  - name: Brave
    description: Java instrumentation library for OpenZipkin.
  - name: OpenTelemetry
    description: OpenTelemetry can export traces to Zipkin.
  - name: Spring Cloud Sleuth
    description: Spring framework integration emitting Zipkin traces.
  - name: Kafka
    description: Span transport via Kafka for asynchronous ingestion.
  - name: Elasticsearch
    description: Storage backend for spans and traces at scale.
  name: Integrations
  type: Integrations
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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