Web3Auth

Web3Auth (now MetaMask Embedded Wallets) is a non-custodial threshold-key wallet and authentication platform. It provides client SDKs (Web, React, Vue, iOS, Android, Flutter, React Native, Unity, Unreal, Node.js) and a backend Auth Network for OAuth-anchored MPC key shares. Public HTTP surface is limited and SDK-first.

Web3Auth publishes 2 APIs on the APIs.io network. Tagged areas include Web3, Wallets, Authentication, MPC, and Embedded Wallets.

Web3Auth’s developer surface includes engineering blog and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

20.2/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1

AccessPaid

2 APIs

Web3WalletsAuthenticationMPCEmbedded Wallets

Kin Score

Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1

Composite quality — 20.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 0.4 / 20

Commercial Clarity 9.5 / 20

Operational Transparency 3.4 / 13

Governance 0.0 / 12

Discoverability 6.9 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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 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

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/web3auth: 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 2

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

Web3Auth Auth Network

Threshold-key Auth Network nodes that issue and recover key shares anchored to OAuth/social/passkey identity providers. Accessed primarily through the Web3Auth client SDK rather...

Web3Auth Dashboard / Verifier API

Backend REST endpoints used by the Web3Auth dashboard to manage projects, verifiers, custom auth, and analytics. Available to project administrators.

Pricing Plans 1

Published pricing tiers and plan structures.

Web3Auth Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Web3Auth Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: web3auth
url: https://raw.githubusercontent.com/api-evangelist/web3auth/refs/heads/main/apis.yml
name: Web3Auth
kind: company
description: Web3Auth (now MetaMask Embedded Wallets) is a non-custodial threshold-key wallet and authentication platform.
  It provides client SDKs (Web, React, Vue, iOS, Android, Flutter, React Native, Unity, Unreal, Node.js) and a backend Auth
  Network for OAuth-anchored MPC key shares. Public HTTP surface is limited and SDK-first.
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/web3auth.png
tags:
- Web3
- Wallets
- Authentication
- MPC
- Embedded Wallets
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
- aid: web3auth:auth-network
  name: Web3Auth Auth Network
  description: Threshold-key Auth Network nodes that issue and recover key shares anchored to OAuth/social/passkey identity
    providers. Accessed primarily through the Web3Auth client SDK rather than as a developer-facing REST API.
  humanURL: https://web3auth.io/docs/auth-provider-setup/
  baseURL: n/a (network endpoint, SDK-mediated)
  tags:
  - Network
  - MPC
  properties:
  - type: Documentation
    url: https://web3auth.io/docs/
- aid: web3auth:dashboard-api
  name: Web3Auth Dashboard / Verifier API
  description: Backend REST endpoints used by the Web3Auth dashboard to manage projects, verifiers, custom auth, and analytics.
    Available to project administrators.
  humanURL: https://web3auth.io/docs/dashboard/
  baseURL: https://api.web3auth.io
  tags:
  - REST
  - Admin
  properties:
  - type: Documentation
    url: https://web3auth.io/docs/dashboard/
common:
- type: TrustCenter
  url: security/web3auth-trust-center.yml
- type: DomainSecurity
  url: security/web3auth-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/web3auth
- type: LinkedIn
  url: https://www.linkedin.com/company/web3auth
- type: Website
  url: https://web3auth.io/
- type: Plans
  url: plans/web3auth-plans-pricing.yml
- type: RateLimits
  url: rate-limits/web3auth-rate-limits.yml
- type: FinOps
  url: finops/web3auth-finops.yml
- type: LlmsText
  url: https://web3auth.io/llms.txt
- url: https://blog.web3auth.io/rss/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com