Blockaid

Blockaid is a web3 security platform that detects and prevents scams, fraud, financial risk, and smart-contract exploits in real time. Its API scans transactions, addresses, tokens, dApp sites, and signed messages across EVM chains, Solana, Bitcoin, Stellar, Sui, Starknet, Tron, and Hedera, returning a risk verdict that wallets, exchanges, and marketplaces (MetaMask, Coinbase, Uniswap, OpenSea) use to block malicious activity before a user signs. Products include End User Protection, Onchain Monitoring, Crypto Fraud Prevention, the Cosigner policy engine, and compliance Risk Exposure. Backed by Greylock, GV, and Ribbit Capital.

Blockaid publishes 23 APIs on the APIs.io network, including Asset Management API, Audit Logs API, Bitcoin API, and 20 more. Tagged areas include Company, Fintech, Web3 Security, Blockchain, and Crypto.

The Blockaid catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Blockaid’s developer surface includes documentation, API reference, engineering blog, support, authentication, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.1/100 developing ▬ flat Agent 46/100 agent ready Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1

AccessSelf serve

23 APIs 1 MCP Servers

CompanyFintechWeb3 SecurityBlockchainCryptoFraud PreventionTransaction ScanningWallet SecurityComplianceThreat Detection

Kin Score

Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1

Composite quality — 45.1/100 · developing

Contract Quality 17.9 / 25

Developer Ergonomics 8.6 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 3.8 / 13

Governance 1.4 / 12

Discoverability 9.3 / 10

Agent readiness — 46/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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/blockaid: 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 23

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

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

LLMsTxt

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Webhooks

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: blockaid
name: Blockaid
description: Blockaid is a web3 security platform that detects and prevents scams, fraud, financial risk, and smart-contract
  exploits in real time. Its API scans transactions, addresses, tokens, dApp sites, and signed messages across EVM chains,
  Solana, Bitcoin, Stellar, Sui, Starknet, Tron, and Hedera, returning a risk verdict that wallets, exchanges, and marketplaces
  (MetaMask, Coinbase, Uniswap, OpenSea) use to block malicious activity before a user signs. Products include End User Protection,
  Onchain Monitoring, Crypto Fraud Prevention, the Cosigner policy engine, and compliance Risk Exposure. Backed by Greylock,
  GV, and Ribbit Capital.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://blockaid.io/images/logos/blockaid.svg
url: https://raw.githubusercontent.com/api-evangelist/blockaid/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- greylock
- gv
- ribbit-capital
x-tier: profiled
x-tier-reason: enriched-2026-07-18
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Fintech
- Web3 Security
- Blockchain
- Crypto
- Fraud Prevention
- Transaction Scanning
- Wallet Security
- Compliance
- Threat Detection
apis:
- aid: blockaid:blockaid-asset-management-api
  name: Blockaid Asset Management API
  description: The Asset Management API from Blockaid — 6 operation(s) for asset management.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Asset Management
  properties:
  - type: OpenAPI
    url: openapi/blockaid-asset-management-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-audit-logs-api
  name: Blockaid Audit Logs API
  description: The Audit Logs API from Blockaid — 1 operation(s) for audit logs.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Audit Logs
  properties:
  - type: OpenAPI
    url: openapi/blockaid-audit-logs-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-bitcoin-api
  name: Blockaid Bitcoin API
  description: The Bitcoin API from Blockaid — 3 operation(s) for bitcoin.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Bitcoin
  properties:
  - type: OpenAPI
    url: openapi/blockaid-bitcoin-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-chain-agnostic-api
  name: Blockaid Chain Agnostic API
  description: The Chain Agnostic API from Blockaid — 2 operation(s) for chain agnostic.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Chain Agnostic
  properties:
  - type: OpenAPI
    url: openapi/blockaid-chain-agnostic-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-cosigner-api
  name: Blockaid cosigner API
  description: The cosigner API from Blockaid — 6 operation(s) for cosigner.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - cosigner
  properties:
  - type: OpenAPI
    url: openapi/blockaid-cosigner-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-crypto-fraud-prevention-api
  name: Blockaid Crypto Fraud Prevention API
  description: The Crypto Fraud Prevention API from Blockaid — 1 operation(s) for crypto fraud prevention.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Crypto Fraud Prevention
  properties:
  - type: OpenAPI
    url: openapi/blockaid-crypto-fraud-prevention-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-enrichment-api
  name: Blockaid Enrichment API
  description: The Enrichment API from Blockaid — 3 operation(s) for enrichment.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Enrichment
  properties:
  - type: OpenAPI
    url: openapi/blockaid-enrichment-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-evm-api
  name: Blockaid EVM API
  description: The EVM API from Blockaid — 14 operation(s) for evm.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - EVM
  properties:
  - type: OpenAPI
    url: openapi/blockaid-evm-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-external-api-integrations-api
  name: Blockaid external api integrations API
  description: The external api integrations API from Blockaid — 2 operation(s) for external api integrations.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - external api integrations
  properties:
  - type: OpenAPI
    url: openapi/blockaid-external-api-integrations-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-external-api
  name: Blockaid external API
  description: The external API from Blockaid — 1 operation(s) for external.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - external
  properties:
  - type: OpenAPI
    url: openapi/blockaid-external-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-hedera-api
  name: Blockaid Hedera API
  description: The Hedera API from Blockaid — 2 operation(s) for hedera.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Hedera
  properties:
  - type: OpenAPI
    url: openapi/blockaid-hedera-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-metrics-api
  name: Blockaid Metrics API
  description: The Metrics API from Blockaid — 3 operation(s) for metrics.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/blockaid-metrics-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-monitors-api
  name: Blockaid Monitors API
  description: The Monitors API from Blockaid — 3 operation(s) for monitors.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Monitors
  properties:
  - type: OpenAPI
    url: openapi/blockaid-monitors-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-organization-risk-config-api
  name: Blockaid Organization Risk Config API
  description: The Organization Risk Config API from Blockaid — 1 operation(s) for organization risk config.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Organization Risk Config
  properties:
  - type: OpenAPI
    url: openapi/blockaid-organization-risk-config-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-report-api
  name: Blockaid Report API
  description: The Report API from Blockaid — 3 operation(s) for report.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Report
  properties:
  - type: OpenAPI
    url: openapi/blockaid-report-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-scan-feedback-api
  name: Blockaid Scan Feedback API
  description: The Scan Feedback API from Blockaid — 1 operation(s) for scan feedback.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Scan Feedback
  properties:
  - type: OpenAPI
    url: openapi/blockaid-scan-feedback-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-site-api
  name: Blockaid Site API
  description: The Site API from Blockaid — 2 operation(s) for site.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Site
  properties:
  - type: OpenAPI
    url: openapi/blockaid-site-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-solana-api
  name: Blockaid Solana API
  description: The Solana API from Blockaid — 3 operation(s) for solana.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Solana
  properties:
  - type: OpenAPI
    url: openapi/blockaid-solana-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-starknet-api
  name: Blockaid Starknet API
  description: The Starknet API from Blockaid — 2 operation(s) for starknet.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Starknet
  properties:
  - type: OpenAPI
    url: openapi/blockaid-starknet-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-stellar-api
  name: Blockaid Stellar API
  description: The Stellar API from Blockaid — 3 operation(s) for stellar.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Stellar
  properties:
  - type: OpenAPI
    url: openapi/blockaid-stellar-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-sui-api
  name: Blockaid Sui API
  description: The Sui API from Blockaid — 3 operation(s) for sui.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Sui
  properties:
  - type: OpenAPI
    url: openapi/blockaid-sui-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-token-api
  name: Blockaid Token API
  description: The Token API from Blockaid — 10 operation(s) for token.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Token
  properties:
  - type: OpenAPI
    url: openapi/blockaid-token-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
- aid: blockaid:blockaid-tron-api
  name: Blockaid Tron API
  description: The Tron API from Blockaid — 2 operation(s) for tron.
  humanURL: https://docs.blockaid.io/docs/introduction
  baseURL: https://api.blockaid.io
  tags:
  - Tron
  properties:
  - type: OpenAPI
    url: openapi/blockaid-tron-api-openapi.yml
  - type: Documentation
    url: https://docs.blockaid.io/docs/introduction
  - type: APIReference
    url: https://docs.blockaid.io/reference/openapi-schema
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://blockaid.io
- type: Documentation
  url: https://docs.blockaid.io/docs/introduction
- type: APIReference
  url: https://docs.blockaid.io/reference/openapi-schema
- type: OpenAPI
  url: openapi/_original/blockaid-openapi-original.yml
- type: Blog
  url: https://blockaid.io/blog
- type: Support
  url: https://blockaid.io/contact
- type: GitHubOrganization
  url: https://github.com/blockaid-official
- type: StatusPage
  url: https://status.blockaid.io
- type: TermsOfService
  url: https://www.blockaid.io/legal/terms-of-use
- type: PrivacyPolicy
  url: https://www.blockaid.io/legal/privacy-policy
- type: Authentication
  url: authentication/blockaid-authentication.yml
- type: AgenticAccess
  url: agentic-access/blockaid-agentic-access.yml
- type: DomainSecurity
  url: security/blockaid-domain-security.yml
- type: Packages
  url: packages/blockaid-packages.yml
- type: SDKs
  url: packages/blockaid-packages.yml
- type: MCPServer
  url: mcp/blockaid-mcp.yml
- type: LLMsTxt
  url: llms/blockaid-llms.txt
- type: Overlay
  url: overlays/blockaid-openapi-overlay.yaml
- type: Conformance
  url: conformance/blockaid-conformance.yml
- type: ErrorCatalog
  url: errors/blockaid-problem-types.yml
- type: Lifecycle
  url: lifecycle/blockaid-lifecycle.yml
- type: Conventions
  url: conventions/blockaid-conventions.yml
- type: DataModel
  url: data-model/blockaid-data-model.yml
- type: Webhooks
  url: asyncapi/blockaid-token-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence