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

38.7/100 thin ▬ flat Agent 30/100 agent ready saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

1 APIs 1 MCP Servers

Company FintechWeb3 SecurityBlockchain Crypto Fraud PreventionTransaction ScanningWallet SecurityCompliance Threat Detection

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 38.7/100 · thin

Contract Quality 13.9 / 21

Developer Ergonomics 4.8 / 17

Access Clarity 3.6 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.5 / 10

Discoverability 6.5 / 9

Regulatory Posture 5.9 / 15

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 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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.

Open Collections 24

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

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.
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: 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: '0.23'
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
  tags_raw:
  - 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

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
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.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/blockaid"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/blockaid/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/blockaid/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.