Infura website screenshot

Infura

Infura (now MetaMask Developer) is a Web3 RPC provider operated by ConsenSys/MetaMask offering JSON-RPC and REST APIs for 23+ blockchain networks including Ethereum, Linea, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB, Solana, Starknet, plus IPFS and a Gas API. Backed by the Decentralized Infrastructure Network (DIN) for failover.

Infura publishes 2 APIs on the APIs.io network: JSON-RPC API and Infura (MetaMask Developer) JSON RPC API API. Tagged areas include Web3, Blockchain, RPC, Infrastructure, and MetaMask.

The Infura catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Infura’s developer surface includes authentication and 8 more developer resources.

31.8/100 thin ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
1 APIs
Web3BlockchainRPCInfrastructureMetaMaskConsenSys

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
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/infura: 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 6

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

Infura JSON-RPC API

Multi-chain JSON-RPC over HTTPS and WebSockets across 23+ networks (Ethereum, Linea, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB, Scroll, Mantle, Blast, Starknet, etc.).

Infura Solana JSON-RPC

Solana JSON-RPC and WebSocket endpoints.

Infura Gas API

REST API for EIP-1559 gas estimation, gas prices, and base-fee history across supported chains.

Infura IPFS API

REST API for pinning and retrieving content on IPFS.

Infura NFT API

REST API for NFT metadata, ownership, and collection data on EVM chains.

Infura Infura (MetaMask Developer) JSON RPC API API

The Infura (MetaMask Developer) JSON RPC API API from Infura — 1 operation(s) for infura (metamask developer) json rpc api.

Open Collections 3

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

API Collection

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Infura Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Infura Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Event Specifications 1

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

Infura (MetaMask Developer) WebSocket Subscription API

AsyncAPI specification for Infura's (now MetaMask Developer Services) Ethereum-compatible WebSocket JSON-RPC subscription interface. Infura now defers its Ethereum reference doc...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Infura API Rules

6 rules · 1 errors 4 warnings 1 info

SPECTRAL

Security Posture 2

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

Infura Authentication

apiKey · 1 scheme

SECURITY

Infura Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Infura Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: infura
url: https://raw.githubusercontent.com/api-evangelist/infura/refs/heads/main/apis.yml
name: Infura
kind: company
description: Infura (now MetaMask Developer) is a Web3 RPC provider operated by ConsenSys/MetaMask offering JSON-RPC and REST
  APIs for 23+ blockchain networks including Ethereum, Linea, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB, Solana, Starknet,
  plus IPFS and a Gas API. Backed by the Decentralized Infrastructure Network (DIN) for failover.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/infura.png
tags:
- Web3
- Blockchain
- RPC
- Infrastructure
- MetaMask
- ConsenSys
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.23'
apis:
- aid: infura:json-rpc
  name: Infura JSON-RPC API
  description: Multi-chain JSON-RPC over HTTPS and WebSockets across 23+ networks (Ethereum, Linea, Polygon, Arbitrum, Optimism,
    Base, Avalanche, BNB, Scroll, Mantle, Blast, Starknet, etc.).
  humanURL: https://docs.metamask.io/services/reference/
  baseURL: https://{network}.infura.io/v3/{apiKey}
  tags:
  - JSON-RPC
  - WebSocket
  - Multi-Chain
  tags_raw:
  - JSON-RPC
  - WebSocket
  - Multi-chain
  properties:
  - type: Documentation
    url: https://docs.metamask.io/services/reference/
  - type: AsyncAPI
    url: asyncapi/infura-asyncapi.yml
- aid: infura:solana-rpc
  name: Infura Solana JSON-RPC
  description: Solana JSON-RPC and WebSocket endpoints.
  humanURL: https://docs.metamask.io/services/reference/solana/
  baseURL: https://solana-mainnet.infura.io/v3/{apiKey}
  tags:
  - JSON-RPC
  - Solana
  properties:
  - type: Documentation
    url: https://docs.metamask.io/services/reference/solana/
- aid: infura:gas-api
  name: Infura Gas API
  description: REST API for EIP-1559 gas estimation, gas prices, and base-fee history across supported chains.
  humanURL: https://docs.metamask.io/services/reference/gas-api/
  baseURL: https://gas.api.infura.io/v3/{apiKey}
  tags:
  - REST
  - Gas
  properties:
  - type: Documentation
    url: https://docs.metamask.io/services/reference/gas-api/
- aid: infura:ipfs
  name: Infura IPFS API
  description: REST API for pinning and retrieving content on IPFS.
  humanURL: https://docs.metamask.io/services/reference/ipfs/
  baseURL: https://ipfs.infura.io:5001/api/v0
  tags:
  - REST
  - IPFS
  properties:
  - type: Documentation
    url: https://docs.metamask.io/services/reference/ipfs/
- aid: infura:nft-api
  name: Infura NFT API
  description: REST API for NFT metadata, ownership, and collection data on EVM chains.
  humanURL: https://docs.metamask.io/services/reference/nft-api/
  baseURL: https://nft.api.infura.io/networks/{chainId}
  tags:
  - REST
  - NFT
  properties:
  - type: Documentation
    url: https://docs.metamask.io/services/reference/nft-api/
- aid: infura:infura-infura-metamask-developer-json-rpc-api-api
  name: Infura Infura (MetaMask Developer) JSON RPC API API
  description: The Infura (MetaMask Developer) JSON RPC API API from Infura — 1 operation(s) for infura (metamask developer)
    json rpc api.
  humanURL: https://docs.metamask.io/services/reference/
  baseURL: https://{network}.infura.io/v3/{apiKey}
  tags:
  - Infura (MetaMask Developer) JSON RPC API
  properties:
  - type: OpenAPI
    url: openapi/infura-infura-metamask-developer-json-rpc-api-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/infura-agentic-access.yml
- type: DomainSecurity
  url: security/infura-domain-security.yml
- type: Authentication
  url: authentication/infura-authentication.yml
- type: GitHubOrganization
  url: https://github.com/INFURA
- type: LinkedIn
  url: https://www.linkedin.com/company/infuraio
- type: Website
  url: https://www.infura.io/
- type: Plans
  url: plans/infura-plans-pricing.yml
- type: RateLimits
  url: rate-limits/infura-rate-limits.yml
- type: FinOps
  url: finops/infura-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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