Fauna

Fauna is a distributed document-relational database delivered as a cloud API that combines the relational query power of SQL with the flexibility of documents and global serverless distribution.

Fauna publishes 5 APIs on the APIs.io network, including Event Streaming API, GraphQL API, EventFeeds API, and 2 more.

The Fauna catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.

Fauna’s developer surface includes authentication and 7 more developer resources.

📡 Source on GitHub

29.2/100 thin ▬ flat Agent 27/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 29.2/100 · thin

Contract Quality 14.7 / 23

Developer Ergonomics 3.0 / 18

Access Clarity 2.8 / 18

Operational Transparency 0.9 / 12

Contract Governance 1.5 / 11

Discoverability 4.0 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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.

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 github.com/api-evangelist/fauna: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 9

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

Fauna Event Streaming API

The Fauna Event Streaming API enables real-time change data capture by maintaining an open connection to the Fauna database and pushing events to clients as they occur. Develope...

Fauna Event Feeds API

The Fauna Event Feeds API provides a polling-based approach to change data capture, complementing the real-time Event Streaming API. Event feeds allow developers to retrieve bat...

Fauna GraphQL API

The Fauna GraphQL API allows developers to interact with their Fauna databases using standard GraphQL queries and mutations. By uploading a GraphQL schema, Fauna automatically g...

Fauna JavaScript Driver

The Fauna JavaScript Driver is the official client SDK for interacting with Fauna from JavaScript and TypeScript applications. It provides template-based FQL query interpolation...

Fauna Python Driver

The Fauna Python Driver is the official client SDK for accessing Fauna from Python applications. It provides idiomatic Python interfaces for composing and executing FQL v10 quer...

Fauna .NET Driver

The Fauna .NET Driver is the official client SDK for interacting with Fauna from C# and .NET applications. It is designed for use with FQL v10 and provides strongly-typed query ...

fauna EventFeeds API

Poll-based change data capture using event feeds. Retrieve batches of change events at your own pace for scheduled synchronization and batch processing workflows.

fauna Query API

Execute Fauna Query Language (FQL) queries against a Fauna database.

fauna Schema API

Fetch, update, validate, and manage a database's schema as FSL files. Supports staged schema changes with status checking, committing, and abandoning.

Pricing Plans 1

Published pricing tiers and plan structures.

Fauna Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Fauna Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Fauna Finops

FINOPS

Event Specifications 1

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

Fauna Event Streaming

The Fauna Event Streaming API enables real-time change data capture by maintaining an open connection to the Fauna database and pushing events to clients as they occur. Develope...

ASYNCAPI

Semantic Vocabularies 1

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

Fauna Context

0 classes · 9 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Fauna API Rules

8 rules · 1 errors 7 warnings

SPECTRAL

Fauna API Rules

6 rules · 5 warnings 1 info

SPECTRAL

2 properties

JSON SCHEMA

SchemaValidationResponse

3 properties

JSON SCHEMA

Scroll for all 21

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Fauna Structure

0 properties

JSON STRUCTURE

Security Posture 2

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

Fauna Authentication

http · 1 scheme

SECURITY

Fauna Domain Security

DMARC

SECURITY

Agentic Access 1

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

Fauna Agentic Access

10 operations · 8 acting

AGENTIC

Resources

Documentation 3

Reference material describing how the API behaves

JSONSchema

JSONSchema

JSONSchema

JSONSchema

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

name: Fauna
aid: fauna
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
specificationVersion: '0.23'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fauna.png
url: https://raw.githubusercontent.com/api-evangelist/fauna/refs/heads/main/apis.yml
modified: '2026-05-19'
apis:
- aid: fauna:event-streaming-api
  name: Fauna Event Streaming API
  tags:
  - Change Data Capture
  - Database
  - Event
  - Real-Time
  - Streaming
  tags_raw:
  - Change Data Capture
  - Database
  - Events
  - Real-Time
  - Streaming
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://db.fauna.com
  humanURL: https://docs.fauna.com/fauna/current/reference/streaming/
  properties:
  - url: https://docs.fauna.com/fauna/current/reference/streaming/
    type: Documentation
  - url: asyncapi/fauna-event-streaming-asyncapi.yml
    type: AsyncAPI
  description: The Fauna Event Streaming API enables real-time change data capture by maintaining an open connection to the
    Fauna database and pushing events to clients as they occur. Developers can subscribe to document or set changes and receive
    add, remove, and update events in real time. The API supports reconnection with a start timestamp to avoid missing events
    during disconnections. It is accessible via the /stream/1 HTTP endpoint with token-based authentication.
- aid: fauna:event-feeds-api
  name: Fauna Event Feeds API
  tags:
  - Change Data Capture
  - Database
  - Event
  - Polling
  tags_raw:
  - Change Data Capture
  - Database
  - Events
  - Polling
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://db.fauna.com
  humanURL: https://docs.fauna.com/fauna/current/learn/cdc/
  properties:
  - url: https://docs.fauna.com/fauna/current/learn/cdc/
    type: Documentation
  description: The Fauna Event Feeds API provides a polling-based approach to change data capture, complementing the real-time
    Event Streaming API. Event feeds allow developers to retrieve batches of change events at their own pace rather than maintaining
    a persistent connection. This is useful for scheduled synchronization tasks, batch processing workflows, and scenarios
    where a pull-based model is preferred over push-based streaming. Event feeds track the same add, remove, and update events
    as streams.
- aid: fauna:graphql-api
  name: Fauna GraphQL API
  tags:
  - Database
  - GraphQL
  - Query Language
  - Serverless
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://graphql.fauna.com
  humanURL: https://docs.fauna.com/fauna/current/
  properties:
  - url: https://docs.fauna.com/fauna/current/
    type: Documentation
  - url: openapi/fauna-graphql-api-openapi.yml
    type: OpenAPI
  - url: graphql/fauna-graphql.md
    type: GraphQL
  description: The Fauna GraphQL API allows developers to interact with their Fauna databases using standard GraphQL queries
    and mutations. By uploading a GraphQL schema, Fauna automatically generates the necessary collections, indexes, and resolvers.
    This API can be used from any programming language or HTTP client without requiring a dedicated Fauna driver. It provides
    an alternative to FQL for developers who prefer the GraphQL query paradigm and ecosystem tooling.
- aid: fauna:javascript-driver
  name: Fauna JavaScript Driver
  tags:
  - Driver
  - JavaScript
  - Node.js
  - SDK
  - TypeScript
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://api.example.com
  humanURL: https://docs.fauna.com/fauna/current/
  properties:
  - url: https://docs.fauna.com/fauna/current/
    type: Documentation
  description: The Fauna JavaScript Driver is the official client SDK for interacting with Fauna from JavaScript and TypeScript
    applications. It provides template-based FQL query interpolation with type safety and a secure wire protocol that prevents
    injection vulnerabilities. The driver supports both Node.js server environments and browser-based applications, and includes
    built-in support for event streaming with automatic reconnection handling.
- aid: fauna:python-driver
  name: Fauna Python Driver
  tags:
  - Driver
  - Python
  - SDK
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://api.example.com
  humanURL: https://docs.fauna.com/fauna/current/
  properties:
  - url: https://docs.fauna.com/fauna/current/
    type: Documentation
  description: The Fauna Python Driver is the official client SDK for accessing Fauna from Python applications. It provides
    idiomatic Python interfaces for composing and executing FQL v10 queries, managing authentication tokens, and handling
    pagination. The driver includes support for event streaming and event feeds, allowing Python developers to build real-time
    and batch-oriented data processing pipelines against Fauna databases.
- aid: fauna:dotnet-driver
  name: Fauna .NET Driver
  tags:
  - .NET
  - C#
  - Driver
  - SDK
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://api.example.com
  humanURL: https://github.com/fauna/fauna-dotnet
  properties:
  - url: https://github.com/fauna/fauna-dotnet
    type: Documentation
  description: The Fauna .NET Driver is the official client SDK for interacting with Fauna from C# and .NET applications.
    It is designed for use with FQL v10 and provides strongly-typed query construction and response handling. The driver enables
    .NET developers to perform document operations, run queries, and manage database resources using familiar C# patterns
    and conventions.
- aid: fauna:fauna-eventfeeds-api
  name: fauna EventFeeds API
  description: Poll-based change data capture using event feeds. Retrieve batches of change events at your own pace for scheduled
    synchronization and batch processing workflows.
  humanURL: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
  baseURL: https://db.fauna.com
  tags:
  - EventFeeds
  properties:
  - type: OpenAPI
    url: openapi/fauna-eventfeeds-api-openapi.yml
  - type: Documentation
    url: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
- aid: fauna:fauna-query-api
  name: fauna Query API
  description: Execute Fauna Query Language (FQL) queries against a Fauna database.
  humanURL: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
  baseURL: https://db.fauna.com
  tags:
  - Query
  properties:
  - type: OpenAPI
    url: openapi/fauna-query-api-openapi.yml
  - type: Documentation
    url: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
- aid: fauna:fauna-schema-api
  name: fauna Schema API
  description: Fetch, update, validate, and manage a database's schema as FSL files. Supports staged schema changes with status
    checking, committing, and abandoning.
  humanURL: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
  baseURL: https://db.fauna.com
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/fauna-schema-api-openapi.yml
  - type: Documentation
    url: https://docs.fauna.com/fauna/current/reference/http/reference/core-api/
common:
- type: AgenticAccess
  url: agentic-access/fauna-agentic-access.yml
- type: DomainSecurity
  url: security/fauna-domain-security.yml
- type: Authentication
  url: authentication/fauna-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/faunainc
- type: JSONLD
  url: json-ld/fauna-context.jsonld
- type: JSONSchema
  url: json-schema/fauna-document-schema.json
- type: JSONSchema
  url: json-schema/fauna-event-schema.json
- type: JSONSchema
  url: json-schema/fauna-query-schema.json
description: Fauna is a distributed document-relational database delivered as a cloud API that combines the relational query
  power of SQL with the flexibility of documents and global serverless distribution.

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