Transpose

Historical blockchain data REST API providing access to transaction history, token transfers, NFT metadata, smart contract events, DEX swaps, and price data across Ethereum and other EVM-compatible chains. Offers five enterprise-grade REST APIs plus a SQL Analytics API for querying indexed blockchain data across Ethereum, Polygon, Optimism, Base, Arbitrum, Avalanche, BSC, Bitcoin, and Tron.

Transpose publishes 6 APIs on the APIs.io network, including Block API API, ENS API API, NFT API API, and 3 more. Tagged areas include Blockchain, NFT, Cryptocurrency, Web3, and Ethereum.

The Transpose catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Transpose’s developer surface includes authentication, developer portal, documentation, getting-started guide, pricing, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

44.1/100 developing ▬ flat Agent 31/100 agent ready Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs

Blockchain NFT Cryptocurrency Web3 Ethereum Token Transfers Smart Contracts Historical Data DeFi DEX

Kin Score

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

Composite quality — 44.1/100 · developing

Contract Quality 15.7 / 25

Developer Ergonomics 8.8 / 20

Access Clarity 6.8 / 20

Operational Transparency 4.1 / 13

Contract Governance 1.2 / 12

Discoverability 7.4 / 10

Agent readiness — 31/100 · 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 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/transpose: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

JSON Schema 4

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

Examples 5

Example request and response payloads for these APIs.

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Blog

Blog

Source (apis.yml)

name: Transpose
description: Historical blockchain data REST API providing access to transaction history, token transfers, NFT metadata, smart
  contract events, DEX swaps, and price data across Ethereum and other EVM-compatible chains. Offers five enterprise-grade
  REST APIs plus a SQL Analytics API for querying indexed blockchain data across Ethereum, Polygon, Optimism, Base, Arbitrum,
  Avalanche, BSC, Bitcoin, and Tron.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/transpose.png
url: https://raw.githubusercontent.com/api-evangelist/transpose/refs/heads/main/apis.yml
created: '2026-06-14'
modified: '2026-06-14'
specificationVersion: '0.23'
tags:
- Blockchain
- NFT
- Cryptocurrency
- Web3
- Ethereum
- Token Transfers
- Smart Contracts
- Historical Data
- DeFi
- DEX
apis:
- aid: transpose:transpose-block-api-api
  name: Transpose Block API API
  description: Low-level blockchain primitives including accounts, blocks, transactions, logs, and traces across EVM chains.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - Block API
  properties:
  - type: OpenAPI
    url: openapi/transpose-block-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
- aid: transpose:transpose-ens-api-api
  name: Transpose ENS API API
  description: Ethereum Name Service records and transfer history.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - ENS API
  properties:
  - type: OpenAPI
    url: openapi/transpose-ens-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
- aid: transpose:transpose-nft-api-api
  name: Transpose NFT API API
  description: NFT collections, ownership, sales, and transfers for ERC-721 and ERC-1155 tokens.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - NFT API
  properties:
  - type: OpenAPI
    url: openapi/transpose-nft-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
- aid: transpose:transpose-sql-analytics-api-api
  name: Transpose SQL Analytics API API
  description: Custom SQL query interface against Transpose's entire indexed blockchain dataset.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - SQL Analytics API
  properties:
  - type: OpenAPI
    url: openapi/transpose-sql-analytics-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
- aid: transpose:transpose-token-api-api
  name: Transpose Token API API
  description: ERC-20, ERC-777, and native token balances, transfers, and DEX swaps.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - Token API
  properties:
  - type: OpenAPI
    url: openapi/transpose-token-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
- aid: transpose:transpose-token-prices-api-api
  name: Transpose Token Prices API API
  description: Real-time and historical OHLC price data for any token including LP tokens.
  humanURL: https://docs.transpose.io/
  baseURL: https://api.transpose.io
  tags:
  - Token Prices API
  properties:
  - type: OpenAPI
    url: openapi/transpose-token-prices-api-api-openapi.yml
  - type: Documentation
    url: https://docs.transpose.io/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-api/overview/
  - type: Documentation
    url: https://docs.transpose.io/verified-endpoints/token-prices-api/overview/
common:
- type: AgenticAccess
  url: agentic-access/transpose-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/transpose-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/transpose-domain-security.yml
- type: Authentication
  url: authentication/transpose-authentication.yml
- type: Portal
  url: https://app.transpose.io
- type: Documentation
  url: https://docs.transpose.io/
- type: GettingStarted
  url: https://docs.transpose.io/quickstart/
- type: Pricing
  url: https://www.transpose.io/pricing
- type: Blog
  url: https://www.transpose.io/blogs
- type: Authentication
  url: https://docs.transpose.io/quickstart/
- type: Plans
  url: plans/plans.yml
- type: RateLimits
  url: rate-limits/rate-limits.yml
- type: FinOps
  url: finops/finops.yml
maintainers:
- FN: API Evangelist
  url: https://apievangelist.com
  email: info@apievangelist.com

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