Superfluid

Superfluid is a money-streaming protocol for real-time, on-chain cashflows, enabling continuous "payments by the second" to any wallet address across EVM networks. Built by Superfluid Labs, the protocol powers salaries, subscriptions, rewards, airdrops, vesting, and incentive distributions as programmable token streams and distribution pools. Developers integrate via first-party TypeScript SDKs (@superfluid-finance/sdk-core, sdk-redux), the on-chain smart contracts (@superfluid-finance/ethereum-contracts), an embeddable checkout Widget, and a public GraphQL Subgraph API served through The Graph for querying streams, pools, accounts, and token statistics. The protocol has streamed over $1.6B to 1.27M recipients across DeFi, SocialFi, and gaming use cases.

Superfluid publishes 1 API on the APIs.io network. Tagged areas include Company, Crypto Web3, Blockchain, DeFi, and Payments.

Superfluid’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

24.7/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

1 APIs

CompanyCrypto Web3BlockchainDeFiPaymentsMoney StreamingEthereumGraphQLSmart Contracts

Kin Score

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

Composite quality — 24.7/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 9.6 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 4/100 · 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 4 / 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/superfluid: 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 1

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

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Components

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

SDKs

SDKs

Packages

Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Explorer

Explorer

Source (apis.yml)

aid: superfluid
name: Superfluid
description: Superfluid is a money-streaming protocol for real-time, on-chain cashflows, enabling continuous "payments by
  the second" to any wallet address across EVM networks. Built by Superfluid Labs, the protocol powers salaries, subscriptions,
  rewards, airdrops, vesting, and incentive distributions as programmable token streams and distribution pools. Developers
  integrate via first-party TypeScript SDKs (@superfluid-finance/sdk-core, sdk-redux), the on-chain smart contracts (@superfluid-finance/ethereum-contracts),
  an embeddable checkout Widget, and a public GraphQL Subgraph API served through The Graph for querying streams, pools, accounts,
  and token statistics. The protocol has streamed over $1.6B to 1.27M recipients across DeFi, SocialFi, and gaming use cases.
url: https://raw.githubusercontent.com/api-evangelist/superfluid/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crypto Web3
- Blockchain
- DeFi
- Payments
- Money Streaming
- Ethereum
- GraphQL
- Smart Contracts
image: https://raw.githubusercontent.com/api-evangelist/superfluid/refs/heads/main/apis.yml
apis:
- name: Superfluid Subgraph API
  description: Public GraphQL Subgraph API (served via The Graph) for querying Superfluid protocol state — streams/flows,
    distribution pools, accounts, SuperTokens, token statistics, and events — across supported EVM networks (Base, Optimism,
    Polygon, Ethereum, Arbitrum, and more). Read-only, no authentication required.
  humanURL: https://docs.superfluid.org/docs/technical-reference/Subgraph
  baseURL: https://subgraph-endpoints.superfluid.dev/base-mainnet/protocol-v1
  properties:
  - type: Documentation
    url: https://docs.superfluid.org/docs/technical-reference/Subgraph
  - type: GraphQL
    url: https://subgraph-endpoints.superfluid.dev/base-mainnet/protocol-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.superfluid.org
- type: DeveloperPortal
  url: https://docs.superfluid.org
- type: Documentation
  url: https://docs.superfluid.org
- type: APIReference
  url: https://docs.superfluid.org/docs/technical-reference/Architecture
- type: GettingStarted
  url: https://docs.superfluid.org/docs/sdk/quickstart
- type: GitHubOrganization
  url: https://github.com/superfluid-finance
- type: Blog
  url: https://superfluid.org/blog
- type: Support
  url: https://discord.gg/pPzPEDMVua
- type: TermsOfService
  url: https://superfluid.org/terms-of-use
- type: PrivacyPolicy
  url: https://superfluidorg.notion.site/Privacy-Policy-3574b6e22ae980b7ada5c70bab11719c
- type: SDKs
  url: packages/superfluid-packages.yml
- type: Packages
  url: packages/superfluid-packages.yml
- type: Components
  url: components/superfluid-components.yml
- type: WellKnown
  url: well-known/superfluid-well-known.yml
- type: LLMsTxt
  url: llms/superfluid-llms.txt
- type: DomainSecurity
  url: security/superfluid-domain-security.yml
- type: Explorer
  url: https://explorer.superfluid.org
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 5
  pass: local-v1