Meltano

Meltano is an open-source, declarative, code-first data integration engine (ELT+) built on the open Singer standard. It lets data teams extract, load, transform, and test data across 600+ pre-built connectors sourced from Meltano Hub, managing entire pipelines as version-controlled code through the meltano CLI and a declarative meltano.yml project file. Meltano integrates with dbt for transformation and Elementary for data validation, and offers the Meltano Singer SDK for building custom taps and targets. It originated as a GitLab project and is backed by GV. Meltano exposes no public REST/HTTP API; it is a CLI-first DataOps platform.

Meltano is profiled on the APIs.io network. Tagged areas include Company, Enterprise, Data Integration, ELT, and Data Pipelines.

Meltano’s developer surface includes documentation, getting-started guide, engineering blog, pricing, support, CLI, changelog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.4/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyEnterpriseData IntegrationELTData PipelinesData EngineeringOpen SourceDataOpsSinger

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 25.4/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 9.6 / 20

Commercial Clarity 6.3 / 20

Operational Transparency 2.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/meltano: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Conformance

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLogLink

ChangeLogLink

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: meltano
name: Meltano
description: Meltano is an open-source, declarative, code-first data integration engine (ELT+) built on the open Singer standard.
  It lets data teams extract, load, transform, and test data across 600+ pre-built connectors sourced from Meltano Hub, managing
  entire pipelines as version-controlled code through the meltano CLI and a declarative meltano.yml project file. Meltano
  integrates with dbt for transformation and Elementary for data validation, and offers the Meltano Singer SDK for building
  custom taps and targets. It originated as a GitLab project and is backed by GV. Meltano exposes no public REST/HTTP API;
  it is a CLI-first DataOps platform.
url: https://raw.githubusercontent.com/api-evangelist/meltano/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://meltano.com/meltano-logo.svg
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Enterprise
- Data Integration
- ELT
- Data Pipelines
- Data Engineering
- Open Source
- DataOps
- Singer
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://meltano.com
- type: DeveloperPortal
  url: https://docs.meltano.com
- type: Documentation
  url: https://docs.meltano.com
- type: GettingStarted
  url: https://docs.meltano.com/getting-started
- type: GitHubOrganization
  url: https://github.com/meltano
- type: Blog
  url: https://meltano.com/blog
- type: Pricing
  url: https://meltano.com/pricing
- type: Support
  url: https://meltano.com/slack
- type: TermsOfService
  url: https://meltano.com/terms-of-service
- type: PrivacyPolicy
  url: https://meltano.com/privacy-policy
- type: ChangeLogLink
  url: https://github.com/meltano/meltano/releases
- type: Packages
  url: packages/meltano-packages.yml
- type: SDKs
  url: packages/meltano-packages.yml
- type: CLI
  url: cli/meltano-cli.yml
- type: ChangeLog
  url: changelog/meltano-changelog.yml
- type: Lifecycle
  url: lifecycle/meltano-lifecycle.yml
- type: Conformance
  url: conformance/meltano-conformance.yml
- type: DomainSecurity
  url: security/meltano-domain-security.yml
- type: LLMsTxt
  url: llms/meltano-llms.txt
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 6
  pass: local-v1