Uniblock

Uniblock is a Web3 infrastructure platform that provides a standardized API aggregating data from hundreds of DEXs and cross-chain bridges, abstracting the complexity of multi-chain development into a single endpoint. The platform completed $5.2 million in financing with $7.5 million in total funding.

Uniblock publishes 7 API contracts indexed on the APIs.io network, including JSON-RPC API, Direct Pass-Through API, Market Data API, and 4 more. Tagged areas include Blockchain and Web3.

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

Uniblock’s developer surface includes authentication, developer portal, documentation, getting-started guide, engineering blog, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.8/100 thin ▬ flat Agent 30/100 agent ready Front door AI 1/6 silent Heartbeat 71/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts

Blockchain Web3

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 33.8/100 · thin

Contract Quality 11.9 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 2.2 / 15

Operational Transparency 0.8 / 10

Contract Governance 2.5 / 9

Discoverability 4.8 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 30/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 14.5 — up to +17.1 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Operational Transparency scores 7.9 — up to +12.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/uniblock/apis.yml: open an issue on github.com/api-evangelist/uniblock to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Blockchain Node and RPC Infrastructure	standard	17.2 (thin)	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 7

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

Uniblock JSON-RPC API

The Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockchain networks. Rather than managing individual node provider connection...

Uniblock Direct Pass-Through API

Pass-through endpoints that proxy requests directly to upstream blockchain data providers such as Alchemy, SimpleHash, TonAPI, Moralis, Covalent, Helius, Solscan, and others.

Uniblock Market Data API

Endpoints for real-time and historical market data including token prices, market capitalization, trading volume, trending tokens, and charting data from multiple exchanges.

Uniblock Scan API

Endpoints for scanning blockchain networks for transactions, transfers, native supply, and block-level data similar to block explorers.

Uniblock Tokens API

Endpoints for retrieving fungible token data including metadata, balances, prices, transfers, and allowances across multiple blockchain networks.

Uniblock Transactions API

Endpoints for looking up transaction data by address or transaction hash, including detailed transaction information.

Uniblock NF Ts API

Endpoints for retrieving non-fungible token data including balances, metadata, transfers, and collection information.

Scroll for all 7

Open Collections 9

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

Uniblock Direct API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through JSON-RPC API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through Market Data API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through NFTs API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through Scan API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through Tokens API

OPEN COLLECTION

Uniblock Direct Direct Pass-Through Transactions API

OPEN COLLECTION

Uniblock Unified API

OPEN COLLECTION

Scroll for all 9

Uniblock API pricing

Not yet checked against Uniblock's own pricing page. Compiled by API Evangelist on 2026-05-05 from uniblock.dev/pricing; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Startup freemium	Free
Growth subscription	—
Pro subscription	—
Business subscription	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Startup plan rate: 1000 compute units per second
Growth plan rate: 2000 compute units per second
Pro plan rate: 8000 compute units per second

Compiled by API Evangelist, not yet checked against Uniblock's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Uniblock Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Uniblock Rate Limits

5 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Uniblock

SLA

FinOps 1

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

Uniblock Finops

FINOPS

Event Specifications 1

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

Uniblock Webhook Events

Uniblock webhooks enable real-time notifications for blockchain events without the need to poll endpoints. By configuring webhooks through the Uniblock dashboard or API, develop...

ASYNCAPI

Semantic Vocabularies 1

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

Uniblock Context

0 classes · 7 properties

JSON-LD

Spectral Rules 3

Spectral governance rulesets for linting and validating these APIs.

Uniblock — asyncapi rules

9 rules · 1 errors 8 warnings

SPECTRAL

Uniblock — jsonschema rules

6 rules · 4 warnings 2 info

SPECTRAL

Uniblock API Rules

8 rules · 3 errors 4 warnings 1 info

SPECTRAL

JSON Schema 4

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

Uniblock NFT

9 properties

JSON SCHEMA

Uniblock Token

7 properties

JSON SCHEMA

Uniblock Transaction

12 properties

JSON SCHEMA

Uniblock Webhook Event

2 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Uniblock Token Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Uniblock Get Token Metadata Example

3 fields

EXAMPLE

Security Posture 2

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

Uniblock Authentication

apiKey · 1 scheme

SECURITY

Uniblock Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Uniblock Agentic Access

27 operations · 3 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Login

Documentation 5

Reference material describing how the API behaves

JSONSchema

JSONSchema

JSONSchema

JSONSchema

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

SpectralRules

SpectralRules

Vocabulary

Vocabulary

Access & Security 2

Authentication, authorization, and security posture

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

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Chains

Chains

Source (apis.yml)

aid: uniblock
url: https://raw.githubusercontent.com/api-evangelist/uniblock/refs/heads/main/apis.yml
name: Uniblock
type: Index
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/uniblock.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Blockchain
- Web3
description: Uniblock is a Web3 infrastructure platform that provides a standardized API aggregating data from hundreds of
  DEXs and cross-chain bridges, abstracting the complexity of multi-chain development into a single endpoint. The platform
  completed $5.2 million in financing with $7.5 million in total funding.
created: '2025-02-08'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: uniblock:json-rpc-api
  name: Uniblock JSON-RPC API
  tags:
  - Blockchain
  - EVM
  - JSON-RPC
  - Node
  - Web3
  tags_raw:
  - Blockchain
  - EVM
  - JSON-RPC
  - Nodes
  - Web3
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://api.uniblock.dev
  humanURL: https://docs.uniblock.dev/reference/unified-api-reference-overview
  properties:
  - url: https://docs.uniblock.dev/reference/unified-api-reference-overview
    type: Documentation
  - url: openapi/uniblock-json-rpc-api-openapi.yml
    type: OpenAPI
  description: The Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockchain
    networks. Rather than managing individual node provider connections for each chain, developers can send JSON-RPC requests
    through Uniblock which automatically selects the best upstream node provider. This supports standard Ethereum and EVM-compatible
    JSON-RPC methods, as well as Solana and other chain-specific RPC interfaces, with built-in failover and automatic retries.
- aid: uniblock:uniblock-direct-pass-through-api
  name: Uniblock Direct Pass-Through API
  description: Pass-through endpoints that proxy requests directly to upstream blockchain data providers such as Alchemy,
    SimpleHash, TonAPI, Moralis, Covalent, Helius, Solscan, and others.
  humanURL: https://docs.uniblock.dev/docs/unified-api-overview
  baseURL: https://api.uniblock.dev
  tags:
  - Direct Pass-Through
  properties:
  - type: OpenAPI
    url: openapi/uniblock-direct-pass-through-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
- aid: uniblock:uniblock-market-data-api
  name: Uniblock Market Data API
  description: Endpoints for real-time and historical market data including token prices, market capitalization, trading volume,
    trending tokens, and charting data from multiple exchanges.
  humanURL: https://docs.uniblock.dev/docs/unified-api-overview
  baseURL: https://api.uniblock.dev
  tags:
  - Market Data
  properties:
  - type: OpenAPI
    url: openapi/uniblock-market-data-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
- aid: uniblock:uniblock-scan-api
  name: Uniblock Scan API
  description: Endpoints for scanning blockchain networks for transactions, transfers, native supply, and block-level data
    similar to block explorers.
  humanURL: https://docs.uniblock.dev/docs/unified-api-overview
  baseURL: https://api.uniblock.dev
  tags:
  - Scans
  tags_raw:
  - Scan
  properties:
  - type: OpenAPI
    url: openapi/uniblock-scan-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
- aid: uniblock:uniblock-tokens-api
  name: Uniblock Tokens API
  description: Endpoints for retrieving fungible token data including metadata, balances, prices, transfers, and allowances
    across multiple blockchain networks.
  humanURL: https://docs.uniblock.dev/docs/unified-api-overview
  baseURL: https://api.uniblock.dev
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/uniblock-tokens-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
- aid: uniblock:uniblock-transactions-api
  name: Uniblock Transactions API
  description: Endpoints for looking up transaction data by address or transaction hash, including detailed transaction information.
  humanURL: https://docs.uniblock.dev/docs/unified-api-overview
  baseURL: https://api.uniblock.dev
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/uniblock-transactions-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
- aid: uniblock:uniblock-nfts-api
  name: Uniblock NF Ts API
  description: Endpoints for retrieving non-fungible token data including balances, metadata, transfers, and collection information.
  humanURL: https://docs.uniblock.dev/reference/unified-api-reference-overview
  baseURL: https://api.uniblock.dev
  tags:
  - NFT
  tags_raw:
  - NFTs
  properties:
  - type: OpenAPI
    url: openapi/uniblock-nfts-api-openapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/unified-api-overview
  - type: AsyncAPI
    url: asyncapi/uniblock-webhooks-asyncapi.yml
  - type: Documentation
    url: https://docs.uniblock.dev/docs/direct-api-overview
common:
- type: Plans
  url: plans/uniblock-plans-pricing.yml
- type: RateLimits
  url: rate-limits/uniblock-rate-limits.yml
- type: FinOps
  url: finops/uniblock-finops.yml
- type: AgenticAccess
  url: agentic-access/uniblock-agentic-access.yml
- type: DomainSecurity
  url: security/uniblock-domain-security.yml
- type: Authentication
  url: authentication/uniblock-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/uniblock-dapp
- type: JSONLD
  url: json-ld/uniblock-context.jsonld
- type: JSONSchema
  url: json-schema/uniblock-token-schema.json
- type: JSONSchema
  url: json-schema/uniblock-nft-schema.json
- type: JSONSchema
  url: json-schema/uniblock-transaction-schema.json
- type: JSONSchema
  url: json-schema/uniblock-webhook-event-schema.json
- type: Website
  url: https://uniblock.dev/
- type: Portal
  url: https://docs.uniblock.dev/
- type: Documentation
  url: https://docs.uniblock.dev/docs/welcome-to-uniblock
- type: GettingStarted
  url: https://docs.uniblock.dev/docs/uniblock-quickstart-guide
- type: Blog
  url: https://www.uniblock.dev/blog
- type: Features
  url: https://www.uniblock.dev/features
- type: Integrations
  url: https://www.uniblock.dev/integrations
- type: Chains
  url: https://www.uniblock.dev/chains
- type: Login
  url: https://app.uniblock.dev/
- type: SpectralRules
  url: rules/uniblock-rules.yml
- type: Vocabulary
  url: vocabulary/uniblock-vocabulary.yml
- type: LlmsText
  url: https://docs.uniblock.dev/llms.txt
integrations:
- name: Deepstack
- name: Blog Image
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Uniblock API — frequently asked questions

Does Uniblock have an API?

Yes. APIs.io lists 7 APIs from Uniblock, including Uniblock JSON-RPC API, Uniblock Direct Pass-Through API and Uniblock Market Data API, and 4 more.

Is there an OpenAPI specification for the Uniblock API?

Yes. APIs.io indexes 7 OpenAPI specifications for Uniblock, each linked for download from this page.

How do I authenticate with the Uniblock API?

Uniblock uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Uniblock Authentication.

How much does the Uniblock API cost?

APIs.io lists 5 pricing plans for Uniblock, with each plan's price, limits and inclusions under Pricing on this page.

Is the Uniblock API ready for AI agents?

Uniblock has a Kin Score of 33.8 out of 100 (thin) and an Agent Readiness score of 29.5 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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