Alchemy

Alchemy is a Web3 developer platform offering blockchain JSON-RPC, Data APIs (NFT, Token, Transfers, Portfolio, Prices, Webhooks/Notify, Simulation), Smart Wallets / Account Abstraction (Bundler, Gas Manager), and dedicated Rollup infrastructure across 50+ chains including Ethereum, Polygon, Arbitrum, Optimism, Base, and Solana.

Alchemy publishes 6 APIs on the APIs.io network, including Node API (JSON-RPC), Transfers API, Paymaster API, and 3 more. Tagged areas include Web3, Blockchain, RPC, NFT, and Indexing.

The Alchemy catalog on APIs.io includes 1 event-driven AsyncAPI specification, 3 JSON-LD contexts, and 3 Spectral governance rulesets.

Alchemy’s developer surface includes authentication, engineering blog, documentation, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

30.1/100 thin ▬ flat Agent 32/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

12 APIs

Web3 Blockchain RPC NFT Indexing Account Abstraction

Kin Score

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

Composite quality — 30.1/100 · thin

Contract Quality 9.2 / 23

Developer Ergonomics 4.3 / 18

Access Clarity 4.3 / 18

Operational Transparency 1.2 / 12

Contract Governance 1.5 / 11

Discoverability 7.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 32/100 · agent ready

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 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/alchemy: 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 12

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

Alchemy Node API (JSON-RPC)

Multi-chain JSON-RPC over HTTPS and WebSockets covering standard eth_*, solana, and other chain methods, plus Alchemy-enhanced subscriptions (alchemy_minedTransactions, alchemy_...

Alchemy NFT API

REST endpoints for NFT ownership, metadata, floor price, sales, contract metadata, and transfers across EVM chains and Solana.

Alchemy Transfers API

REST endpoints for paginated address-level transfer history (external, internal, ERC-20, ERC-721, ERC-1155).

Alchemy Portfolio API

REST endpoints aggregating multi-chain wallet balances, NFTs, and tokens in a single call.

Alchemy Prices API

REST endpoints for token spot and historical pricing.

Alchemy Webhooks (Notify)

REST API for managing webhook subscriptions (mined / dropped transactions, address activity, NFT activity, custom).

Alchemy Bundler API (ERC-4337)

JSON-RPC bundler endpoints for ERC-4337 user operations (eth_sendUserOperation, eth_estimateUserOperationGas, alchemy_*).

Alchemy Simulation API

REST/JSON-RPC API for simulating transactions and asset changes before broadcasting.

Alchemy Paymaster API

Sponsor user operations via ERC-4337 paymaster endpoints.

Alchemy Policies API

Create and manage gas sponsorship policies.

Alchemy Token Balances API

Retrieve ERC-20 token balances for wallet addresses.

Alchemy Token Metadata API

Retrieve metadata for ERC-20 tokens.

Scroll for all 12

Open Collections 8

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

API Collection

OPEN COLLECTION

Alchemy Gas Manager API

OPEN COLLECTION

Alchemy Gas Manager Paymaster API

OPEN COLLECTION

Alchemy Gas Manager Paymaster Policies API

OPEN COLLECTION

Alchemy Token API

OPEN COLLECTION

Alchemy Gas Manager Paymaster Token Balances API

OPEN COLLECTION

Alchemy Gas Manager Paymaster Token Metadata API

OPEN COLLECTION

Alchemy Gas Manager Paymaster Transfers API

OPEN COLLECTION

Scroll for all 8

GraphQL 1

GraphQL schemas published by this provider.

Alchemy GraphQL Schema

This conceptual GraphQL schema models the Alchemy Web3 developer platform, covering the full surface of Alchemy's blockchain APIs: Node RPC (JSON-RPC over HTTPS/WebSockets), NFT...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Alchemy Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Alchemy Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Alchemy Finops

FINOPS

Event Specifications 1

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

Alchemy WebSocket Subscription API

AsyncAPI definition for Alchemy's JSON-RPC WebSocket subscription API. Clients open a `wss://` connection to a per-network Alchemy endpoint and use the standard Ethereum `eth_su...

ASYNCAPI

Semantic Vocabularies 3

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

Alchemy Gas Manager Api Context

7 classes · 15 properties

JSON-LD

Alchemy Token Api Context

6 classes · 12 properties

JSON-LD

Alchemy Transfers Api Context

4 classes · 14 properties

JSON-LD

Spectral Rules 3

Spectral governance rulesets for linting and validating these APIs.

Alchemy API Rules

8 rules · 1 errors 6 warnings 1 info

SPECTRAL

Alchemy API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Alchemy API Rules

37 rules · 13 errors 19 warnings 5 info

SPECTRAL

JSON Schema 15

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

Create Policy Request

4 properties

JSON SCHEMA

Policy List Response

1 properties

JSON SCHEMA

Gas Manager Policy

6 properties

JSON SCHEMA

Sponsor User Operation Request

4 properties

JSON SCHEMA

Sponsor User Operation Response

3 properties

JSON SCHEMA

Sponsor User Operation Result

4 properties

JSON SCHEMA

Token Balance

3 properties

JSON SCHEMA

Token Balances Response

3 properties

JSON SCHEMA

Token Balances Result

3 properties

JSON SCHEMA

Token Metadata Response

3 properties

JSON SCHEMA

Token Metadata

4 properties

JSON SCHEMA

Asset Transfer

8 properties

JSON SCHEMA

Asset Transfers Response

3 properties

JSON SCHEMA

Asset Transfers Result

2 properties

JSON SCHEMA

Transfer Metadata

1 properties

JSON SCHEMA

Scroll for all 15

JSON Structure 15

JSON Structure definitions describing this provider's data shapes.

Alchemy Gas Manager Api Create Policy Request Structure

4 properties

JSON STRUCTURE

Alchemy Gas Manager Api Policy List Response Structure

1 properties

JSON STRUCTURE

Alchemy Gas Manager Api Policy Structure

6 properties

JSON STRUCTURE

Alchemy Gas Manager Api Sponsor User Operation Request Structure

4 properties

JSON STRUCTURE

Alchemy Gas Manager Api Sponsor User Operation Response Structure

3 properties

JSON STRUCTURE

Alchemy Gas Manager Api Sponsor User Operation Result Structure

4 properties

JSON STRUCTURE

Alchemy Token Api Token Balance Structure

3 properties

JSON STRUCTURE

Alchemy Token Api Token Balances Response Structure

3 properties

JSON STRUCTURE

Alchemy Token Api Token Balances Result Structure

3 properties

JSON STRUCTURE

Alchemy Token Api Token Metadata Response Structure

3 properties

JSON STRUCTURE

Alchemy Token Api Token Metadata Structure

4 properties

JSON STRUCTURE

Alchemy Transfers Api Asset Transfer Structure

8 properties

JSON STRUCTURE

Alchemy Transfers Api Asset Transfers Response Structure

3 properties

JSON STRUCTURE

Alchemy Transfers Api Asset Transfers Result Structure

2 properties

JSON STRUCTURE

Alchemy Transfers Api Transfer Metadata Structure

1 properties

JSON STRUCTURE

Scroll for all 15

Examples 15

Example request and response payloads for these APIs.

Alchemy Gas Manager Api Create Policy Request Example

4 fields

EXAMPLE

Alchemy Gas Manager Api Policy Example

6 fields

EXAMPLE

Alchemy Gas Manager Api Policy List Response Example

1 fields

EXAMPLE

Alchemy Gas Manager Api Sponsor User Operation Request Example

4 fields

EXAMPLE

Alchemy Gas Manager Api Sponsor User Operation Response Example

3 fields

EXAMPLE

Alchemy Gas Manager Api Sponsor User Operation Result Example

4 fields

EXAMPLE

Alchemy Token Api Token Balance Example

3 fields

EXAMPLE

Alchemy Token Api Token Balances Response Example

3 fields

EXAMPLE

Alchemy Token Api Token Balances Result Example

3 fields

EXAMPLE

Alchemy Token Api Token Metadata Example

4 fields

EXAMPLE

Alchemy Token Api Token Metadata Response Example

3 fields

EXAMPLE

Alchemy Transfers Api Asset Transfer Example

8 fields

EXAMPLE

Alchemy Transfers Api Asset Transfers Response Example

3 fields

EXAMPLE

Alchemy Transfers Api Asset Transfers Result Example

2 fields

EXAMPLE

Alchemy Transfers Api Transfer Metadata Example

1 fields

EXAMPLE

Scroll for all 15

Security Posture 4

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

Alchemy Authentication

apiKey/http · 2 schemes

SECURITY

Alchemy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Alchemy Vulnerability Disclosure

disclosure policy published

SECURITY

Alchemy Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Alchemy Agentic Access

7 operations · 5 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

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

Blog

Blog

LinkedIn

Website

Website

Source (apis.yml)

aid: alchemy
url: https://raw.githubusercontent.com/api-evangelist/alchemy/refs/heads/main/apis.yml
name: Alchemy
kind: company
description: Alchemy is a Web3 developer platform offering blockchain JSON-RPC, Data APIs (NFT, Token, Transfers, Portfolio,
  Prices, Webhooks/Notify, Simulation), Smart Wallets / Account Abstraction (Bundler, Gas Manager), and dedicated Rollup infrastructure
  across 50+ chains including Ethereum, Polygon, Arbitrum, Optimism, Base, and Solana.
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/alchemy.png
tags:
- Web3
- Blockchain
- RPC
- NFT
- Indexing
- Account Abstraction
created: '2026-05-08'
modified: '2026-08-07'
specificationVersion: '0.23'
apis:
- aid: alchemy:node-rpc
  name: Alchemy Node API (JSON-RPC)
  description: Multi-chain JSON-RPC over HTTPS and WebSockets covering standard eth_*, solana, and other chain methods, plus
    Alchemy-enhanced subscriptions (alchemy_minedTransactions, alchemy_pendingTransactions).
  humanURL: https://www.alchemy.com/docs/reference/api-overview
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - JSON-RPC
  - WebSocket
  - Multi-Chain
  tags_raw:
  - JSON-RPC
  - WebSocket
  - Multi-chain
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/api-overview
  - type: AsyncAPI
    url: asyncapi/alchemy-asyncapi.yml
  - url: graphql/alchemy-graphql.md
    type: GraphQL
- aid: alchemy:nft-api
  name: Alchemy NFT API
  description: REST endpoints for NFT ownership, metadata, floor price, sales, contract metadata, and transfers across EVM
    chains and Solana.
  humanURL: https://www.alchemy.com/docs/reference/nft-api-quickstart
  baseURL: https://{network}.g.alchemy.com/nft/v3/{apiKey}
  tags:
  - REST
  - NFT
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/nft-api-quickstart
- aid: alchemy:transfers-api
  name: Alchemy Transfers API
  description: REST endpoints for paginated address-level transfer history (external, internal, ERC-20, ERC-721, ERC-1155).
  humanURL: https://www.alchemy.com/docs/reference/transfers-api-quickstart
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - REST
  - Transfers
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/transfers-api-quickstart
  - type: OpenAPI
    url: openapi/alchemy-transfers-api-openapi.yml
- aid: alchemy:portfolio-api
  name: Alchemy Portfolio API
  description: REST endpoints aggregating multi-chain wallet balances, NFTs, and tokens in a single call.
  humanURL: https://www.alchemy.com/docs/reference/portfolio-api-quickstart
  baseURL: https://api.g.alchemy.com/data/v1/{apiKey}
  tags:
  - REST
  - Portfolio
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/portfolio-api-quickstart
- aid: alchemy:prices-api
  name: Alchemy Prices API
  description: REST endpoints for token spot and historical pricing.
  humanURL: https://www.alchemy.com/docs/reference/prices-api-quickstart
  baseURL: https://api.g.alchemy.com/prices/v1/{apiKey}
  tags:
  - REST
  - Prices
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/prices-api-quickstart
- aid: alchemy:webhooks-notify
  name: Alchemy Webhooks (Notify)
  description: REST API for managing webhook subscriptions (mined / dropped transactions, address activity, NFT activity,
    custom).
  humanURL: https://www.alchemy.com/docs/reference/notify-api-quickstart
  baseURL: https://dashboard.alchemy.com/api
  tags:
  - REST
  - Webhook
  tags_raw:
  - REST
  - Webhooks
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/notify-api-quickstart
- aid: alchemy:bundler
  name: Alchemy Bundler API (ERC-4337)
  description: JSON-RPC bundler endpoints for ERC-4337 user operations (eth_sendUserOperation, eth_estimateUserOperationGas,
    alchemy_*).
  humanURL: https://www.alchemy.com/docs/reference/bundler-api-quickstart
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - JSON-RPC
  - ERC-4337
  - Account Abstraction
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/bundler-api-quickstart
- aid: alchemy:simulation-api
  name: Alchemy Simulation API
  description: REST/JSON-RPC API for simulating transactions and asset changes before broadcasting.
  humanURL: https://www.alchemy.com/docs/reference/transaction-simulation-api-quickstart
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - JSON-RPC
  - Simulation
  properties:
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/transaction-simulation-api-quickstart
- aid: alchemy:alchemy-paymaster-api
  name: Alchemy Paymaster API
  description: Sponsor user operations via ERC-4337 paymaster endpoints.
  humanURL: https://www.alchemy.com/docs/reference/api-overview
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - Paymaster
  properties:
  - type: OpenAPI
    url: openapi/alchemy-paymaster-api-openapi.yml
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/token-api-quickstart
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/gas-manager-api-quickstart
- aid: alchemy:alchemy-policies-api
  name: Alchemy Policies API
  description: Create and manage gas sponsorship policies.
  humanURL: https://www.alchemy.com/docs/reference/api-overview
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - Policies
  properties:
  - type: OpenAPI
    url: openapi/alchemy-policies-api-openapi.yml
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/token-api-quickstart
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/gas-manager-api-quickstart
- aid: alchemy:alchemy-token-balances-api
  name: Alchemy Token Balances API
  description: Retrieve ERC-20 token balances for wallet addresses.
  humanURL: https://www.alchemy.com/docs/reference/api-overview
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - Token Balances
  properties:
  - type: OpenAPI
    url: openapi/alchemy-token-balances-api-openapi.yml
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/token-api-quickstart
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/gas-manager-api-quickstart
- aid: alchemy:alchemy-token-metadata-api
  name: Alchemy Token Metadata API
  description: Retrieve metadata for ERC-20 tokens.
  humanURL: https://www.alchemy.com/docs/reference/api-overview
  baseURL: https://{network}.g.alchemy.com/v2/{apiKey}
  tags:
  - Token Metadata
  properties:
  - type: OpenAPI
    url: openapi/alchemy-token-metadata-api-openapi.yml
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/token-api-quickstart
  - type: Documentation
    url: https://www.alchemy.com/docs/reference/gas-manager-api-quickstart
common:
- type: AgenticAccess
  url: agentic-access/alchemy-agentic-access.yml
- type: TrustCenter
  url: security/alchemy-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/alchemy-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/alchemy-domain-security.yml
- type: Authentication
  url: authentication/alchemy-authentication.yml
- url: https://www.alchemy.com/blog
  type: Blog
- type: GitHubOrganization
  url: https://github.com/alchemyplatform
- type: LinkedIn
  url: https://www.linkedin.com/company/alchemyinc
- type: Website
  url: https://www.alchemy.com/
- type: Documentation
  url: https://docs.alchemy.com/
- type: Plans
  url: plans/alchemy-plans-pricing.yml
- type: RateLimits
  url: rate-limits/alchemy-rate-limits.yml
- type: FinOps
  url: finops/alchemy-finops.yml
- type: Integrations
  url: https://www.alchemy.com/integrations
- type: LlmsText
  url: https://alchemy.com/llms.txt
integrations:
- name: Alchemy
- name: Blockaid
- name: Blockscout
- name: Boost
- name: Coinflow
- name: Decent
- name: DIA
- name: Halliday
- name: Hexagate
- name: Hyperlane
- name: Hypernative
- name: Noves
- name: Palmera
- name: Parsec
- name: Predicate
- name: Succinct
- name: Spearbit
- name: Superbridge
- name: Tally
- name: Thirdweb
- name: Webacy
- name: Zapper
- name: Rollup background
- name: LinkedIn
- name: YouTube
- name: Discord
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-merged-from:
- alchemy-ethereum
x-merge-note: alchemy-ethereum merged in 2026-08-07. That profile carried a single doc-only API entry ("Alchemy Ethereum",
  baseURL = the docs URL, one Documentation property) against this repo's 12 real API contracts, and both of its blog posts
  were already present here. Nothing else was portable; the only fact carried over was the docs.alchemy.com Documentation
  pointer, which this profile was missing.

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