Triplit

Triplit is an open-source full-stack database that syncs data between server and browser in real-time, combining a client-side store with a server sync engine and schema-defined collections. It offers a TypeScript-first SDK for building real-time, collaborative, and offline-capable web applications, supporting frameworks like React, Svelte, Vue, Solid, Angular, and Vue. Triplit provides an HTTP REST API and WebSocket-based sync protocol secured with JWT authentication, along with a CLI for scaffolding and managing projects. Developers can self-host Triplit on their own infrastructure or deploy via Triplit Cloud.

Triplit publishes 9 API contracts indexed on the APIs.io network, including Advanced API, Auth API, Data API, and 6 more. Tagged areas include Database, Real-Time, Sync, Local-First, and Developer Tools.

The Triplit catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Triplit’s developer surface includes authentication, documentation, engineering blog, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.5/100 thin ▬ flat Agent 28/100 agent aware Heartbeat 0/100 dormant open core · AGPL-3.0 Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

1 published contract

Database Real-Time Sync Local-First Developer Tools TypeScript Open Source

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 29.5/100 · thin

Contract Quality 9.3 / 16

Developer Ergonomics 2.3 / 13

Access Clarity 0.6 / 13

Operational Transparency 2.0 / 8

Contract Governance 0.8 / 8

Discoverability 3.7 / 7

Regulatory Posture 1.6 / 15

Open Source Surface 5.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

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.

The six quality facets above are damped to 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 4.3 — up to +19.1 composite points Ask about this →
Developer Ergonomics scores 17.9 — up to +16.4 composite points Ask about this →
Contract Governance scores 9.8 — up to +10.8 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/triplit/apis.yml: open an issue on github.com/api-evangelist/triplit to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 9

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

Triplit HTTP API

RESTful HTTP API for interacting with a Triplit sync server, supporting fetch, insert, bulk-insert, update, delete, delete-all, and healthcheck operations. Authenticated via JWT...

Triplit Client SDK

TypeScript/JavaScript client library for interacting with Triplit databases locally and remotely. Provides query subscriptions, optimistic updates, offline support, and real-tim...

Triplit CLI

Command-line interface tool for scaffolding Triplit projects, running the local full-stack development environment, managing schemas and migrations, and deploying to Triplit Clo...

Triplit Advanced API

Low-level replication and change management endpoints

Triplit Auth API

Authentication and token management

Triplit Data API

CRUD operations on collection entities

Triplit Schema API

Database schema management

Triplit System API

Server health, version, and administrative endpoints

Triplit Webhooks API

Webhook configuration management

Scroll for all 9

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Triplit HTTP Advanced API

OPEN COLLECTION

Triplit HTTP Advanced Auth API

OPEN COLLECTION

Triplit HTTP Advanced Data API

OPEN COLLECTION

Triplit HTTP Advanced Schema API

OPEN COLLECTION

Triplit HTTP Advanced System API

OPEN COLLECTION

Triplit HTTP Advanced Webhooks API

OPEN COLLECTION

Triplit API pricing

Not yet checked against Triplit's own pricing page. Compiled by API Evangelist on 2026-06-12 from www.triplit.dev/pricing; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Open Source / Self-Hosted free	Free

Plan details, limits and sources →

Rate limits

HTTP API (Self-hosted): unlimited requests per minute
WebSocket Sync Connections (Self-hosted): unlimited concurrent connections

Compiled by API Evangelist, not yet checked against Triplit's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Triplit Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Triplit Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Triplit Finops

FINOPS

Semantic Vocabularies 1

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

Triplit Context

9 classes · 23 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Triplit — jsonschema rules

5 rules · 4 warn-severity 1 info-severity

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Triplit Collection Query

6 properties

JSON SCHEMA

Triplit Entity

1 properties

JSON SCHEMA

Triplit Error Response

3 properties

JSON SCHEMA

Triplit Schema Response

2 properties

JSON SCHEMA

Examples 5

Example request and response payloads for these APIs.

Triplit Bulk Insert Example

3 fields

EXAMPLE

Triplit Delete Example

3 fields

EXAMPLE

Triplit Fetch Example

3 fields

EXAMPLE

Triplit Insert Example

3 fields

EXAMPLE

Triplit Update Example

3 fields

EXAMPLE

Security Posture 2

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

Triplit Authentication

http · 1 scheme

SECURITY

Triplit Domain Security

no transport/DNS hardening detected

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Triplit Agentic Access

18 operations · 12 acting · 1 human-in-the-loop

18 operations · 12 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: triplit
name: Triplit
description: Triplit is an open-source full-stack database that syncs data between server and browser in real-time, combining
  a client-side store with a server sync engine and schema-defined collections. It offers a TypeScript-first SDK for building
  real-time, collaborative, and offline-capable web applications, supporting frameworks like React, Svelte, Vue, Solid, Angular,
  and Vue. Triplit provides an HTTP REST API and WebSocket-based sync protocol secured with JWT authentication, along with
  a CLI for scaffolding and managing projects. Developers can self-host Triplit on their own infrastructure or deploy via
  Triplit Cloud.
type: Index
deliveryModel:
  model: open-core
  license: AGPL-3.0
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/triplit.png
tags:
- Database
- Real-Time
- Sync
- Local-First
- Developer Tools
- TypeScript
- Open Source
tags_raw:
- Database
- Real-time
- Sync
- Local-first
- Developer Tools
- TypeScript
- Open Source
- Open-Source
url: https://raw.githubusercontent.com/api-evangelist/triplit/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
artifacts:
- type: OpenAPI
  url: openapi/triplit-http-api-openapi.yml
- type: JSONSchema
  url: json-schema/triplit-entity-schema.json
- type: JSONSchema
  url: json-schema/triplit-collection-query-schema.json
- type: JSONSchema
  url: json-schema/triplit-error-schema.json
- type: JSONSchema
  url: json-schema/triplit-schema-response-schema.json
- type: Vocabulary
  url: vocabulary/triplit-vocabulary.yml
- type: JSONLD
  url: json-ld/triplit-context.jsonld
specificationVersion: '0.23'
apis:
- aid: triplit:http-api
  name: Triplit HTTP API
  description: RESTful HTTP API for interacting with a Triplit sync server, supporting fetch, insert, bulk-insert, update,
    delete, delete-all, and healthcheck operations. Authenticated via JWT Bearer tokens (Service or Anonymous tokens). Base
    URL follows the pattern https://<project-id>.triplit.io.
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Database
  - REST
  - Real-Time
  - CRUD
  tags_raw:
  - Database
  - REST
  - Real-time
  - CRUD
  properties:
  - type: Documentation
    url: https://www.triplit.dev/docs/http-api
- aid: triplit:client-sdk
  name: Triplit Client SDK
  description: TypeScript/JavaScript client library for interacting with Triplit databases locally and remotely. Provides
    query subscriptions, optimistic updates, offline support, and real-time sync via WebSockets. Framework bindings available
    for React, Svelte, Vue, Solid, Angular, and React Native.
  humanURL: https://www.triplit.dev/docs/client
  tags:
  - SDK
  - TypeScript
  - JavaScript
  - Real-Time
  - Offline
  tags_raw:
  - SDK
  - TypeScript
  - JavaScript
  - Real-time
  - Offline
  properties:
  - type: Documentation
    url: https://www.triplit.dev/docs/client
- aid: triplit:cli
  name: Triplit CLI
  description: Command-line interface tool for scaffolding Triplit projects, running the local full-stack development environment,
    managing schemas and migrations, and deploying to Triplit Cloud. Installable via npm as @triplit/cli.
  humanURL: https://www.triplit.dev/docs/cli
  tags:
  - CLI
  - Developer Tools
  - DevOps
  properties:
  - type: Documentation
    url: https://www.triplit.dev/docs/cli
- aid: triplit:triplit-advanced-api
  name: Triplit Advanced API
  description: Low-level replication and change management endpoints
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Advanced
  properties:
  - type: OpenAPI
    url: openapi/triplit-advanced-api-openapi.yml
- aid: triplit:triplit-auth-api
  name: Triplit Auth API
  description: Authentication and token management
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/triplit-auth-api-openapi.yml
- aid: triplit:triplit-data-api
  name: Triplit Data API
  description: CRUD operations on collection entities
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/triplit-data-api-openapi.yml
- aid: triplit:triplit-schema-api
  name: Triplit Schema API
  description: Database schema management
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/triplit-schema-api-openapi.yml
- aid: triplit:triplit-system-api
  name: Triplit System API
  description: Server health, version, and administrative endpoints
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/triplit-system-api-openapi.yml
- aid: triplit:triplit-webhooks-api
  name: Triplit Webhooks API
  description: Webhook configuration management
  humanURL: https://www.triplit.dev/docs/http-api
  baseURL: https://<project-id>.triplit.io
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/triplit-webhooks-api-openapi.yml
common:
- type: IssueTracker
  url: https://github.com/aspen-cloud/triplit/issues
- type: Releases
  url: https://github.com/aspen-cloud/triplit/releases
- type: ContributionGuide
  url: https://github.com/aspen-cloud/triplit/blob/main/CONTRIBUTING.md
- type: License
  name: AGPL-3.0
  url: https://github.com/aspen-cloud/triplit/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/triplit-agentic-access.yml
- type: DomainSecurity
  url: security/triplit-domain-security.yml
- type: Authentication
  url: authentication/triplit-authentication.yml
- type: Website
  url: https://www.triplit.dev
- type: Documentation
  url: https://www.triplit.dev/docs
- type: GitHubOrganization
  url: https://github.com/aspen-cloud
- type: GitHubRepository
  url: https://github.com/aspen-cloud/triplit
- type: LinkedIn
  url: https://www.linkedin.com/company/triplitdev
- type: Blog
  url: https://www.triplit.dev/blog
- type: X
  url: https://x.com/triplit_dev
- type: Plans
  url: plans/triplit-plans-pricing.yml
- type: RateLimits
  url: rate-limits/triplit-rate-limits.yml
- type: FinOps
  url: finops/triplit-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Triplit API — frequently asked questions

Does Triplit have an API?

Yes. APIs.io lists 9 APIs from Triplit, including Triplit HTTP API, Triplit Client SDK and Triplit CLI, and 6 more.

Is there an OpenAPI specification for the Triplit API?

Yes. APIs.io indexes 6 OpenAPI specifications for Triplit, each linked for download from this page.

How do I authenticate with the Triplit API?

Triplit uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Triplit Authentication.

How much does the Triplit API cost?

APIs.io lists 1 pricing plan for Triplit, with each plan's price, limits and inclusions under Pricing on this page.

Is the Triplit API ready for AI agents?

Triplit has a Kin Score of 29.5 out of 100 (thin) and an Agent Readiness score of 27.7 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

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Tools for providers

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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Every operation they expose

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