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

10.8/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessPaid

2 APIs

Web3 Wallets Authentication MPC Embedded Wallets

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 10.8/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 4.0 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 5.8 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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.

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: '0.23'
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

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Web3Auth

Kin Score

APIs 2

Web3Auth Auth Network

Web3Auth Dashboard / Verifier API

Pricing Plans 1

Web3Auth Plans Pricing