SimpleHash

NFT data API aggregating metadata, ownership, transfers, floor prices, and token market data across 80+ blockchains. Provides REST API, webhooks, and Kafka streaming used by wallets, marketplaces, and analytics platforms including Coinbase, Phantom, Ledger, and Uniswap. Indexes 3B+ tokens and NFTs with 99.999% uptime SLA.

SimpleHash publishes 1 API on the APIs.io network: NFT & Token API. Tagged areas include NFT, Blockchain, Web3, Cryptocurrency, and Token.

The SimpleHash catalog on APIs.io includes 1 JSON-LD context.

SimpleHash’s developer surface includes documentation, GitHub presence, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

26.2/100 thin ▬ flat Agent 16/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemium

1 APIs

NFT Blockchain Web3 Cryptocurrency Token Metadata Multi-Chain Ethereum Solana Base Polygon

Kin Score

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

Composite quality — 26.2/100 · thin

Contract Quality 9.3 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 7.9 / 20

Operational Transparency 0.7 / 13

Contract Governance 0.0 / 12

Discoverability 6.9 / 10

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 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

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/simplehash: 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 1

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

Rate Limits 1

Documented rate limits and quota policies.

Simplehash Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

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: simplehash
name: SimpleHash
description: NFT data API aggregating metadata, ownership, transfers, floor prices, and token market data across 80+ blockchains.
  Provides REST API, webhooks, and Kafka streaming used by wallets, marketplaces, and analytics platforms including Coinbase,
  Phantom, Ledger, and Uniswap. Indexes 3B+ tokens and NFTs with 99.999% uptime SLA.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/simplehash.png
url: https://raw.githubusercontent.com/api-evangelist/simplehash/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.23'
tags:
- NFT
- Blockchain
- Web3
- Cryptocurrency
- Token
- Metadata
- Multi-Chain
- Ethereum
- Solana
- Base
- Polygon
tags_raw:
- NFT
- Blockchain
- Web3
- Cryptocurrency
- Token
- Metadata
- Multi-chain
- Ethereum
- Solana
- Base
- Polygon
apis:
- aid: simplehash:nft-api
  name: SimpleHash NFT & Token API
  description: Multi-chain REST API providing NFT metadata, ownership, transfers, floor prices, listings, bids, spam scores,
    and fungible token market prices across 80+ blockchains and testnets. Supports bulk lookups, automatic metadata refresh,
    and cached media previews.
  humanURL: https://simplehash.com/
  baseURL: https://api.simplehash.com/api/v0
  tags:
  - NFT
  - Token
  - Blockchain
  - Metadata
  - Ownership
  - Floor Price
  properties:
  - type: Documentation
    url: https://docs.simplehash.com/
  - type: OpenAPI
    url: https://docs.simplehash.com/reference/overview
  contact:
  - FN: SimpleHash Support
    email: support@simplehash.com
common:
- type: VulnerabilityDisclosure
  url: security/simplehash-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/simplehash-domain-security.yml
- type: Website
  url: https://simplehash.com/
- type: Documentation
  url: https://docs.simplehash.com/
- type: GitHub
  url: https://github.com/simplehash
- type: LinkedIn
  url: https://www.linkedin.com/company/simplehash/
- type: Blog
  url: https://simplehash.com/blog
- type: Pricing
  url: https://simplehash.com/pricing
- type: StatusPage
  url: https://simplehash.betteruptime.com/
- type: X
  url: https://x.com/SimpleHashInc
- type: Plans
  url: plans/simplehash-plans-pricing.yml
- type: RateLimits
  url: rate-limits/simplehash-rate-limits.yml
- type: FinOps
  url: finops/simplehash-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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SimpleHash

Kin Score

APIs 1

SimpleHash NFT & Token API

Pricing Plans 1

Simplehash Plans Pricing

Rate Limits 1

Simplehash Rate Limits

FinOps 1

Simplehash Finops

Semantic Vocabularies 1

Simplehash Context

Security Posture 2

Simplehash Domain Security

Simplehash Vulnerability Disclosure

Resources