EngFlow

aid: engflow
name: EngFlow
description: EngFlow provides remote build execution, remote caching, CI runners, and a Build & Test UI that accelerate large-scale
  software builds for Bazel, BuildStream, Goma, Pants, Soong, CMake, and Buck2. EngFlow clusters expose a gRPC / Protocol
  Buffers API surface — the open Remote Execution API (REAPI v2) and Remote Asset API, plus EngFlow's own cluster, IAM, authentication,
  event store, result store, secret, notification, and resource-usage services, all published as Protocol Buffer interface
  definitions in the EngFlow/engflowapis repository. Clusters authenticate via mTLS, cluster-issued JWT bearer tokens, OIDC
  federation, SAML, GitHub tokens, and basic auth, and provision users over SCIM 2.0. EngFlow was founded by former Google/Bazel
  engineers and is backed by a16z.
url: https://raw.githubusercontent.com/api-evangelist/engflow/refs/heads/main/apis.yml
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
image: https://avatars.githubusercontent.com/u/61729484?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Remote Execution
- Remote Caching
- Build Systems
- Bazel
- CI/CD
- Developer Tools
- gRPC
- Protocol Buffers
- DevOps
- Continuous Integration
apis:
- name: EngFlow Cluster API (gRPC)
  description: The EngFlow cluster gRPC / Protocol Buffers API surface — cluster info, IAM (roles/policies/users/groups),
    authentication, event store and result store build-event streaming, secret management, and notifications — as published
    in the EngFlow/engflowapis interface-definition repository, alongside the open Remote Execution API (REAPI v2) and Remote
    Asset API that EngFlow implements.
  humanURL: https://docs.engflow.com/re/index.html
  baseURL: https://docs.engflow.com
  x-transport: grpc
  x-note: EngFlow clusters are customer-hosted; the gRPC endpoint is per-cluster (grpcs://<cluster-host>). No single public
    base URL exists — humanURL/baseURL point at the public developer docs host.
  properties:
  - type: Protobuf
    name: Cluster service (proto)
    url: grpc/engflow-cluster.proto
  - type: Protobuf
    name: Identity and Access Management service (proto)
    url: grpc/engflow-identity_and_access_management.proto
  - type: Protobuf
    name: Authentication service (proto)
    url: grpc/engflow-authentication.proto
  - type: Protobuf
    name: Event Store service (proto)
    url: grpc/engflow-eventstore.proto
  - type: Protobuf
    name: Result Store service (proto)
    url: grpc/engflow-resultstore.proto
  - type: Protobuf
    name: Secret service (proto)
    url: grpc/engflow-secret.proto
  - type: Protobuf
    name: Notification service (proto)
    url: grpc/engflow-notification.proto
common:
- type: DomainSecurity
  url: security/engflow-domain-security.yml
- type: Website
  url: https://www.engflow.com
- type: DeveloperPortal
  url: https://docs.engflow.com
- type: Documentation
  url: https://docs.engflow.com
- type: APIReference
  url: https://github.com/EngFlow/engflowapis
- type: GettingStarted
  url: https://docs.engflow.com/re/index.html
- type: Blog
  url: https://blog.engflow.com
- type: GitHubOrganization
  url: https://github.com/EngFlow
- type: Pricing
  url: https://www.engflow.com/product/pricing
- type: SignUp
  url: https://www.engflow.com/contact
- type: Support
  url: https://www.engflow.com/contact
- type: TermsOfService
  url: https://www.engflow.com/terms
- type: PrivacyPolicy
  url: https://www.engflow.com/privacy
- type: SourceCode
  url: https://github.com/EngFlow/engflowapis
- type: Packages
  url: packages/engflow-packages.yml
- type: SDKs
  url: packages/engflow-packages.yml
- type: CLI
  url: cli/engflow-cli.yml
- type: Authentication
  url: authentication/engflow-authentication.yml
- type: Conformance
  url: conformance/engflow-conformance.yml
- type: Compliance
  url: https://docs.engflow.com
- type: Conventions
  url: conventions/engflow-conventions.yml
- type: Lifecycle
  url: lifecycle/engflow-lifecycle.yml
- type: DataModel
  url: data-model/engflow-data-model.yml
- type: MCPServer
  url: mcp/engflow-mcp.yml
- type: WellKnown
  url: well-known/engflow-well-known.yml
- type: LLMsTxt
  url: llms/engflow-llms.txt
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence