Feldera website screenshot

Feldera

Feldera is an incremental compute engine for running complex SQL data pipelines in real time. Rather than reprocessing entire datasets, it updates materialized views proportionally to the changes in the input data, delivering low-latency, low-cost results for use cases such as fraud detection, feature engineering, change data capture, and real-time dashboards. Feldera is built on the DBSP incremental computation theory and is available as an open-source engine, a self-hosted enterprise platform, and a hosted online sandbox (try.feldera.com). Developers define pipelines as SQL programs with input/output connectors and manage them through the Feldera REST API, a Python client, and the fda CLI. Backed by Costanoa Ventures.

Feldera publishes 6 APIs on the APIs.io network, including Input Connectors API, Metrics & Debugging API, Output Connectors API, and 3 more. Tagged areas include Company, Data Infrastructure, Streaming, SQL, and Incremental View Maintenance.

Feldera’s developer surface includes documentation, API reference, getting-started guide, authentication, CLI, sandbox, changelog, and 27 more developer resources.

🌐 Visit website 📡 Source on GitHub
59.4/100 developing ▬ flat Agent 65/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
6 APIs 1 MCP Servers
CompanyData InfrastructureStreamingSQLIncremental View MaintenanceReal-Time AnalyticsChange Data CaptureMaterialized ViewsData Pipelines

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 59.4/100 · developing
Contract Quality 14.1 / 25
Developer Ergonomics 17.4 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 5.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 65/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
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 0 / 6
Agent Skills 5 / 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/feldera: 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.

Feldera Input Connectors API

The Input Connectors API from Feldera — 5 operation(s) for input connectors.

Feldera Metrics & Debugging API

The Metrics & Debugging API from Feldera — 15 operation(s) for metrics & debugging.

Feldera Output Connectors API

The Output Connectors API from Feldera — 2 operation(s) for output connectors.

Feldera Pipeline CRUD API

The Pipeline CRUD API from Feldera — 2 operation(s) for pipeline crud.

Feldera Pipeline Lifecycle API

The Pipeline Lifecycle API from Feldera — 20 operation(s) for pipeline lifecycle.

Feldera Platform API

The Platform API from Feldera — 9 operation(s) for platform.

MCP Servers 1

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

feldera-mcp.yml

MCP SERVER

Security Posture 3

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

Feldera Authentication

http · 1 scheme

SECURITY

Feldera Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Feldera Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Feldera Agentic Access

60 operations · 26 acting · 2 human-in-the-loop

60 operations · 26 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Sandbox
Sandbox
 SignUp
SignUp

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 OpenAPI
OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 AgenticAccess
AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 DataModel
DataModel
 Lifecycle
Lifecycle
 Conformance
Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 CLI
CLI
 GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication
Authentication
 Compliance
Compliance
 TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 4

Status, limits, changes, and where to get help

StatusPage
StatusPage
 Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: feldera
name: Feldera
description: Feldera is an incremental compute engine for running complex SQL data pipelines in real time. Rather than reprocessing
  entire datasets, it updates materialized views proportionally to the changes in the input data, delivering low-latency,
  low-cost results for use cases such as fraud detection, feature engineering, change data capture, and real-time dashboards.
  Feldera is built on the DBSP incremental computation theory and is available as an open-source engine, a self-hosted enterprise
  platform, and a hosted online sandbox (try.feldera.com). Developers define pipelines as SQL programs with input/output connectors
  and manage them through the Feldera REST API, a Python client, and the fda CLI. Backed by Costanoa Ventures.
url: https://raw.githubusercontent.com/api-evangelist/feldera/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- costanoa-ventures
x-tier: profiled
x-tier-reason: enriched
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://cdn.sanity.io/images/nlte859i/production/1c2e10b5e5fe2946c6c16f7b4a0790214f186c81-1280x640.png
tags:
- Company
- Data Infrastructure
- Streaming
- SQL
- Incremental View Maintenance
- Real-Time Analytics
- Change Data Capture
- Materialized Views
- Data Pipelines
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: feldera:feldera-input-connectors-api
  name: Feldera Input Connectors API
  description: The Input Connectors API from Feldera — 5 operation(s) for input connectors.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Input Connectors
  properties:
  - type: OpenAPI
    url: openapi/feldera-input-connectors-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
- aid: feldera:feldera-metrics-debugging-api
  name: Feldera Metrics & Debugging API
  description: The Metrics & Debugging API from Feldera — 15 operation(s) for metrics & debugging.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Metrics & Debugging
  properties:
  - type: OpenAPI
    url: openapi/feldera-metrics-debugging-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
- aid: feldera:feldera-output-connectors-api
  name: Feldera Output Connectors API
  description: The Output Connectors API from Feldera — 2 operation(s) for output connectors.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Output Connectors
  properties:
  - type: OpenAPI
    url: openapi/feldera-output-connectors-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
- aid: feldera:feldera-pipeline-crud-api
  name: Feldera Pipeline CRUD API
  description: The Pipeline CRUD API from Feldera — 2 operation(s) for pipeline crud.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Pipeline CRUD
  properties:
  - type: OpenAPI
    url: openapi/feldera-pipeline-crud-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
- aid: feldera:feldera-pipeline-lifecycle-api
  name: Feldera Pipeline Lifecycle API
  description: The Pipeline Lifecycle API from Feldera — 20 operation(s) for pipeline lifecycle.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Pipeline Lifecycle
  properties:
  - type: OpenAPI
    url: openapi/feldera-pipeline-lifecycle-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
- aid: feldera:feldera-platform-api
  name: Feldera Platform API
  description: The Platform API from Feldera — 9 operation(s) for platform.
  humanURL: https://docs.feldera.com/api/
  baseURL: https://try.feldera.com
  tags:
  - Platform
  properties:
  - type: OpenAPI
    url: openapi/feldera-platform-api-openapi.yml
  - type: ErrorCatalog
    url: errors/feldera-error-codes.yml
  - type: DataModel
    url: data-model/feldera-data-model.yml
common:
- type: DeveloperPortal
  url: https://docs.feldera.com
- type: Documentation
  url: https://docs.feldera.com
- type: APIReference
  url: https://docs.feldera.com/api/
- type: GettingStarted
  url: https://docs.feldera.com/get-started
- type: Authentication
  url: authentication/feldera-authentication.yml
- type: OpenAPI
  url: openapi/feldera-openapi-original.json
- type: Overlay
  url: overlays/feldera-openapi-overlay.yaml
- type: Conventions
  url: conventions/feldera-conventions.yml
- type: ErrorCatalog
  url: errors/feldera-error-codes.yml
- type: DataModel
  url: data-model/feldera-data-model.yml
- type: Packages
  url: packages/feldera-packages.yml
- type: SDKs
  url: packages/feldera-packages.yml
- type: CLI
  url: cli/feldera-cli.yml
- type: MCPServer
  url: mcp/feldera-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/feldera-llms.txt
- type: AgenticAccess
  url: agentic-access/feldera-agentic-access.yml
- type: Sandbox
  url: sandbox/feldera-sandbox.yml
- type: Lifecycle
  url: lifecycle/feldera-lifecycle.yml
- type: StatusPage
  url: https://feldera.statuspage.io
- type: Deprecation
  url: https://docs.feldera.com/changelog
- type: ChangeLog
  url: changelog/feldera-changelog.yml
- type: Conformance
  url: conformance/feldera-conformance.yml
- type: Compliance
  url: https://trust.feldera.com
- type: TrustCenter
  url: security/feldera-trust-center.yml
- type: DomainSecurity
  url: security/feldera-domain-security.yml
- type: Blog
  url: https://www.feldera.com/blog
- type: GitHubOrganization
  url: https://github.com/feldera
- type: Support
  url: https://join.slack.com/t/felderacommunity/shared_invite/zt-3vf3n5dj5-HJuC1DFFY2wE1_AZUyNxqw
- type: Pricing
  url: https://www.feldera.com/pricing
- type: SignUp
  url: https://try.feldera.com/
- type: TermsOfService
  url: https://www.feldera.com/terms
- type: PrivacyPolicy
  url: https://www.feldera.com/privacy
- type: Website
  url: https://www.feldera.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence