Sifflet

Sifflet is a data observability platform positioned as the control plane for Data and AI. It catches data issues before they reach the business, traces them to their root cause, and helps teams fix them fast. The platform unifies a data catalog, data quality monitoring, end-to-end data lineage (including field-level lineage), built-in security and access control, and AI-powered agents (Sentinel auto-monitoring, Sage root-cause analysis, and an AI chat/assistant) into one product. It integrates with major data platforms and tools including Snowflake, Databricks, BigQuery, Amazon Redshift, dbt, Apache Airflow, Fivetran, Tableau, Looker, and Power BI. Developers automate Sifflet through a public REST API (Bearer Access Token auth), a Python CLI, a Terraform provider, Airflow operators, outbound webhooks, and an official MCP server. Sifflet is a portfolio company of EQT Ventures.

Sifflet publishes 15 API contracts indexed on the APIs.io network, including Assets API, Calendars API, Credentials API, and 12 more. Tagged areas include Company, Data Analytics, Data Observability, Data Quality, and Data Catalog.

The Sifflet catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

Sifflet’s developer surface includes support, signup flow, documentation, API reference, getting-started guide, engineering blog, pricing, and 36 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

70.1/100 exemplar ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 1 MCP Servers

Company Data Analytics Data Observability Data Quality Data Catalog Data Lineage Data Governance Monitoring Metadata AI Agents

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Information & Data Management

BC-610

AssetsDeclarative Assets and LineageRuleRule RunWorkspace

GET /v1/rules/_all-as-code GET /v1/rules POST /v1/rules/{id}/_run POST /v1/assets/search

Cybersecurity Management

BC-620

Users

POST /v1/users POST /v1/users/{id}/reset-password

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 70.1/100 · exemplar

Contract Quality 13.8 / 19

Developer Ergonomics 10.4 / 15

Access Clarity 12.8 / 15

Operational Transparency 5.1 / 10

Contract Governance 3.2 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Governance scores 35.6 — up to +7.7 composite points
Contract Quality scores 73.8 — up to +6.6 composite points
Operational Transparency scores 52.6 — up to +6.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/sifflet/apis.yml: open an issue on github.com/api-evangelist/sifflet to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Data Integration (ELT connectors and data governance)	builds-on	46.0	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 15

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

Sifflet Assets API

The Assets API from Sifflet — 3 operation(s) for assets.

Sifflet Calendars API

The Calendars API from Sifflet — 2 operation(s) for calendars.

Sifflet Credentials API

The Credentials API from Sifflet — 2 operation(s) for credentials.

Sifflet dbt integration API

The dbt integration API from Sifflet — 1 operation(s) for dbt integration.

Sifflet Declarative Assets and Lineage API

The Declarative Assets and Lineage API from Sifflet — 2 operation(s) for declarative assets and lineage.

Sifflet Domains API

The Domains API from Sifflet — 2 operation(s) for domains.

Sifflet External Catalog API

The External Catalog API from Sifflet — 1 operation(s) for external catalog.

Sifflet Notification Rules API

The Notification Rules API from Sifflet — 2 operation(s) for notification rules.

Sifflet Rule API

The Rule API from Sifflet — 6 operation(s) for rule.

Sifflet Rule Run API

The Rule Run API from Sifflet — 3 operation(s) for rule run.

Sifflet Sources (deprecated) API

The Sources (deprecated) API from Sifflet — 5 operation(s) for sources (deprecated).

Sifflet Sources (v2) API

The Sources (v2) API from Sifflet — 9 operation(s) for sources (v2).

Sifflet Teams API

The Teams API from Sifflet — 2 operation(s) for teams.

Sifflet Users API

The Users API from Sifflet — 3 operation(s) for users.

Sifflet Workspace API

The Workspace API from Sifflet — 1 operation(s) for workspace.

Scroll for all 15

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Sifflet MCP Server

Official Sifflet MCP (Model Context Protocol) Server. Bridges Sifflet's data observability APIs into IDEs and agent tools (e.g. Cursor). Authenticates with a Sifflet Access Token.

MCP SERVER

Sifflet API pricing

Prices published by Sifflet, read 2026-10-28 from www.siffletdata.com/pricing.

Plan	Price
Entry	Start Now Includes: Core Data Observability & Catalog, SaaS, Standard SLA & Support, Guided onboarding
Growth	Get Started Includes: SaaS, Priority support, Dedicated onboarding
Enterprise	Get in Touch Includes: SaaS/Hybrid/Self-hosted, Enterprise (24/7, white-glove) support

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Sifflet Plans Pricing

3 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Sifflet

SLA

FinOps 1

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

Sifflet Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Sifflet Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

Sifflet Context

120 classes · 189 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Sifflet API Rules

14 rules · 12 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

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

AsCodeMonitorDto

18 properties

JSON SCHEMA

PublicCreateSourceDto

7 properties

JSON SCHEMA

PublicGetAssetDto

20 properties

JSON SCHEMA

PublicGetSourceDto

9 properties

JSON SCHEMA

PublicUpdateSourceDto

7 properties

JSON SCHEMA

RuleInfoDto

30 properties

JSON SCHEMA

Security Posture 4

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

Sifflet Authentication

http · 1 scheme

SECURITY

Sifflet Domain Security

TLSv1.3 · DMARC

SECURITY

Sifflet Vulnerability Disclosure

contact published

SECURITY

Sifflet Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Agentic Access 1

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

Sifflet Agentic Access

67 operations · 39 acting · 1 human-in-the-loop

67 operations · 39 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

SignUp

SignUp

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

Lifecycle

Conventions

ErrorCatalog

DataModel

Conformance

Scroll for all 9

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

Compliance

Security

Authentication

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Operate 5

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

ChangeLog

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Newsroom

Newsroom

Website

Website

Blog

Blog

Other 4

Properties that don't map to a standard resource type

CapabilityMap

Hosts

Vendors

Leadership

Source (apis.yml)

aid: sifflet
name: Sifflet
description: Sifflet is a data observability platform positioned as the control plane for Data and AI. It catches data issues
  before they reach the business, traces them to their root cause, and helps teams fix them fast. The platform unifies a data
  catalog, data quality monitoring, end-to-end data lineage (including field-level lineage), built-in security and access
  control, and AI-powered agents (Sentinel auto-monitoring, Sage root-cause analysis, and an AI chat/assistant) into one product.
  It integrates with major data platforms and tools including Snowflake, Databricks, BigQuery, Amazon Redshift, dbt, Apache
  Airflow, Fivetran, Tableau, Looker, and Power BI. Developers automate Sifflet through a public REST API (Bearer Access Token
  auth), a Python CLI, a Terraform provider, Airflow operators, outbound webhooks, and an official MCP server. Sifflet is
  a portfolio company of EQT Ventures.
url: https://raw.githubusercontent.com/api-evangelist/sifflet/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/6745ca418d70ad1c8e2b8442/67915a6a3d805d3e9c024aff_sifflet-logo-color.svg
x-type: company
x-source: vc-portfolio
x-backed-by:
- eqt-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Data Analytics
- Data Observability
- Data Quality
- Data Catalog
- Data Lineage
- Data Governance
- Monitoring
- Metadata
- AI Agents
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/sifflet-capability-edges.yml
  name: Sifflet Business Capability Map
- type: Plans
  url: plans/sifflet-plans-pricing.yml
- type: AgenticAccess
  url: agentic-access/sifflet-agentic-access.yml
- type: Spectral
  url: rules/sifflet-rules.yml
- type: JSONLD
  url: json-ld/sifflet-context.jsonld
- type: Vocabulary
  url: vocabulary/sifflet-vocabulary.yml
- type: Hosts
  url: hosts/sifflet-hosts.yml
- type: Vendors
  url: vendors/sifflet-vendors.yml
- type: Support
  url: https://support.siffletdata.com/en/
- type: SignUp
  url: https://www.siffletdata.com/partners/register-a-deal
- type: Newsroom
  url: https://www.siffletdata.com/press
- type: Leadership
  url: https://www.siffletdata.com/team
- type: Website
  url: https://www.siffletdata.com/
- type: DeveloperPortal
  url: https://docs.siffletdata.com/
- type: Documentation
  url: https://docs.siffletdata.com/docs/overview
- type: APIReference
  url: https://docs.siffletdata.com/reference
- type: GettingStarted
  url: https://docs.siffletdata.com/docs/cli-command-line-interface
- type: Blog
  url: https://www.siffletdata.com/blog
- type: Pricing
  url: https://www.siffletdata.com/pricing
- type: TermsOfService
  url: https://www.siffletdata.com/terms-of-use
- type: PrivacyPolicy
  url: https://www.siffletdata.com/privacy-policy
- type: GitHubOrganization
  url: https://github.com/siffletdata
- type: StatusPage
  url: https://status.siffletdata.com/
- type: ChangeLog
  url: https://docs.siffletdata.com/changelog
- type: TrustCenter
  url: security/sifflet-trust-center.yml
- type: Compliance
  url: https://www.siffletdata.com/product-security
- type: Security
  url: https://docs.siffletdata.com/docs/how-to-report-a-security-incident
- type: LLMsTxt
  url: llms/sifflet-llms.txt
- type: MCPServer
  url: mcp/sifflet-mcp.yml
- type: Authentication
  url: authentication/sifflet-authentication.yml
- type: Packages
  url: packages/sifflet-packages.yml
- type: SDKs
  url: packages/sifflet-packages.yml
- type: CLI
  url: cli/sifflet-cli.yml
- type: Webhooks
  url: asyncapi/sifflet-webhooks.yml
- type: ChangeLog
  url: changelog/sifflet-changelog.yml
- type: Lifecycle
  url: lifecycle/sifflet-lifecycle.yml
- type: Deprecation
  url: lifecycle/sifflet-lifecycle.yml
- type: Conventions
  url: conventions/sifflet-conventions.yml
- type: ErrorCatalog
  url: errors/sifflet-problem-types.yml
- type: DataModel
  url: data-model/sifflet-data-model.yml
- type: Conformance
  url: conformance/sifflet-conformance.yml
- type: DomainSecurity
  url: security/sifflet-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/sifflet-vulnerability-disclosure.yml
apis:
- aid: sifflet:sifflet-assets-api
  name: Sifflet Assets API
  description: The Assets API from Sifflet — 3 operation(s) for assets.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/sifflet-assets-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-calendars-api
  name: Sifflet Calendars API
  description: The Calendars API from Sifflet — 2 operation(s) for calendars.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Calendar
  tags_raw:
  - Calendars
  properties:
  - type: OpenAPI
    url: openapi/sifflet-calendars-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-credentials-api
  name: Sifflet Credentials API
  description: The Credentials API from Sifflet — 2 operation(s) for credentials.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Credentials
  properties:
  - type: OpenAPI
    url: openapi/sifflet-credentials-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-dbt-integration-api
  name: Sifflet dbt integration API
  description: The dbt integration API from Sifflet — 1 operation(s) for dbt integration.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - dbt integration
  properties:
  - type: OpenAPI
    url: openapi/sifflet-dbt-integration-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-declarative-assets-and-lineage-api
  name: Sifflet Declarative Assets and Lineage API
  description: The Declarative Assets and Lineage API from Sifflet — 2 operation(s) for declarative assets and lineage.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Declarative Assets and Lineage
  properties:
  - type: OpenAPI
    url: openapi/sifflet-declarative-assets-and-lineage-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-domains-api
  name: Sifflet Domains API
  description: The Domains API from Sifflet — 2 operation(s) for domains.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Domains
  properties:
  - type: OpenAPI
    url: openapi/sifflet-domains-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-external-catalog-api
  name: Sifflet External Catalog API
  description: The External Catalog API from Sifflet — 1 operation(s) for external catalog.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - External Catalog
  properties:
  - type: OpenAPI
    url: openapi/sifflet-external-catalog-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-notification-rules-api
  name: Sifflet Notification Rules API
  description: The Notification Rules API from Sifflet — 2 operation(s) for notification rules.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Notification Rules
  properties:
  - type: OpenAPI
    url: openapi/sifflet-notification-rules-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-rule-api
  name: Sifflet Rule API
  description: The Rule API from Sifflet — 6 operation(s) for rule.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - rule
  tags_raw:
  - Rule
  properties:
  - type: OpenAPI
    url: openapi/sifflet-rule-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-rule-run-api
  name: Sifflet Rule Run API
  description: The Rule Run API from Sifflet — 3 operation(s) for rule run.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Rule Run
  properties:
  - type: OpenAPI
    url: openapi/sifflet-rule-run-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-sources-deprecated-api
  name: Sifflet Sources (deprecated) API
  description: The Sources (deprecated) API from Sifflet — 5 operation(s) for sources (deprecated).
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Sources (deprecated)
  properties:
  - type: OpenAPI
    url: openapi/sifflet-sources-deprecated-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-sources-v2-api
  name: Sifflet Sources (v2) API
  description: The Sources (v2) API from Sifflet — 9 operation(s) for sources (v2).
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Sources (v2)
  properties:
  - type: OpenAPI
    url: openapi/sifflet-sources-v2-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-teams-api
  name: Sifflet Teams API
  description: The Teams API from Sifflet — 2 operation(s) for teams.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/sifflet-teams-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-users-api
  name: Sifflet Users API
  description: The Users API from Sifflet — 3 operation(s) for users.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/sifflet-users-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
- aid: sifflet:sifflet-workspace-api
  name: Sifflet Workspace API
  description: The Workspace API from Sifflet — 1 operation(s) for workspace.
  humanURL: https://docs.siffletdata.com/reference/overview-1
  baseURL: https://demo.siffletdata.com/api/v2
  tags:
  - Workspace
  properties:
  - type: OpenAPI
    url: openapi/sifflet-workspace-api-openapi.yml
  - type: APIReference
    url: https://docs.siffletdata.com/reference
  - type: Authentication
    url: authentication/sifflet-authentication.yml
  - type: Webhooks
    url: asyncapi/sifflet-webhooks.yml
  - type: ErrorCatalog
    url: errors/sifflet-problem-types.yml
  - type: DataModel
    url: data-model/sifflet-data-model.yml
  - type: JSONSchema
    url: json-schema/sifflet-public-get-asset-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-as-code-monitor-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-rule-info-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-get-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-create-source-dto-schema.json
  - type: JSONSchema
    url: json-schema/sifflet-public-update-source-dto-schema.json
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1
x-readme-harvest:
  date: '2026-10-14'
  ops: 67
  tool: harvest-readme-openapi.py
  portal: https://docs.siffletdata.com

Sifflet API — frequently asked questions

Does Sifflet have an API?

Yes. APIs.io lists 15 APIs from Sifflet, including Sifflet Assets API, Sifflet Calendars API and Sifflet Credentials API, and 12 more.

Is there an OpenAPI specification for the Sifflet API?

Yes. APIs.io indexes 15 OpenAPI specifications for Sifflet, each linked for download from this page.

How do I authenticate with the Sifflet API?

Sifflet uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Sifflet Authentication.

How much does the Sifflet API cost?

Sifflet publishes its prices; its Entry plan is Start Now as of 2026-10-28. APIs.io lists 3 pricing plans for Sifflet, with each plan's price, limits and inclusions under Pricing on this page.

Does Sifflet have an MCP server?

Yes. APIs.io lists 1 MCP server for Sifflet: Official Sifflet MCP (Model Context Protocol) Server. Bridges Sifflet's data observability APIs into IDEs and agent tools (e.g. Cursor). Authenticates with a Sifflet Access Token.

Is the Sifflet API ready for AI agents?

Sifflet has a Kin Score of 70.1 out of 100 (exemplar) and an Agent Readiness score of 35.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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