Checkpoint402

Checkpoint402 sells checked data for AI agents on a pay-per-call basis: transaction explanations for Base and Ethereum, DeFi yield discovery (DefiLlama), new-token and token safety checks (GoPlus, GeckoTerminal, DexScreener), SEC 8-K company events (SEC EDGAR) and US Treasury OFAC sanctions screening. Every service is a plain HTTPS GET on api.checkpoint402.com returning JSON, with no account or API key: each request is paid individually (from $0.02) in USDC on Base via the x402 HTTP payment standard, and failed requests are never charged. The same services are offered as a remote MCP server at https://api.checkpoint402.com/mcp.

Checkpoint402 publishes 5 API contracts indexed on the APIs.io network, including Blockchain API, Defi API, Sanctions API, and 2 more. Tagged areas include Company, AI Agents, x402, Payments, and Cryptocurrency.

The Checkpoint402 catalog on APIs.io includes 1 Spectral governance ruleset.

Checkpoint402’s developer surface includes authentication, documentation, support, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.6/100 thin Agent 40/100 agent native Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

2 published contracts 1 MCP Servers 3 Agent Skills

Company AI Agents x402 Payments Cryptocurrency DeFi Blockchain Sanctions Screening SEC Filings MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 36.6/100 · thin

Contract Quality 9.5 / 21

Developer Ergonomics 4.8 / 17

Access Clarity 9.4 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 40/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 4 / 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 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.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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

Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified) Ask about this →
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's Ask about this →

2 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 28.0 — up to +14.4 composite points Ask about this →
Contract Quality scores 44.7 — up to +13.8 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/checkpoint402-com/apis.yml: open an issue on github.com/api-evangelist/checkpoint402-com 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 →

Standards implemented 3

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.

Agent2Agent

measured — observed by APIs.io (conformant)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

Checkpoint402 Blockchain API

The blockchain API from Checkpoint402 — 1 operation(s) for blockchain.

Checkpoint402 Defi API

The defi API from Checkpoint402 — 1 operation(s) for defi.

Checkpoint402 Sanctions API

The sanctions API from Checkpoint402 — 1 operation(s) for sanctions.

Checkpoint402 Sec API

The sec API from Checkpoint402 — 1 operation(s) for sec.

Checkpoint402 Tokens API

The tokens API from Checkpoint402 — 2 operation(s) for tokens.

MCP Servers 1

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

Checkpoint402 MCP Server

Remote MCP server at api.checkpoint402.com; 7 tools listed.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

onchain-and-market-intel

AGENT SKILL

sanctions-screening

AGENT SKILL

token-due-diligence

AGENT SKILL

Checkpoint402 API pricing

Prices published by Checkpoint402. A free plan or tier is listed.

Plan	Price
Transaction Explainer	$0.03
Best DeFi Yield Finder	$0.05
New Token Safety Feed	$0.10
Token Safety Check	$0.02
Company Events (SEC 8-K)	$0.10
Sanctions Screening	$0.05
Free endpoints	Free, unpaid endpoints:/ (service list with parameters),/health and/openapi.json

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Checkpoint402 Plans Pricing

7 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Checkpoint402 Rate Limits

0 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Checkpoint402

6 quoted statements, read from Checkpoint402's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Checkpoint402

12 quoted statements, read from Checkpoint402's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Checkpoint402

2 quoted statements, read from Checkpoint402's own page on 2026-11-09.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Checkpoint402

1 quoted statement, read from Checkpoint402's own page on 2026-11-09.

AI PREFS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Checkpoint402 API Rules

43 rules · 41 error-severity 1 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Checkpoint402 Openapi Overlay

6 actions · update · checkpoint402-com-openapi.yml

DERIVED

Security Posture 2

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

Checkpoint402 Authentication

2 schemes

SECURITY

Checkpoint402 Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Checkpoint402 Agentic Access

6 operations

6 operations · 0 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

AIPreferences

AIPreferences

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

MCPServer

MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Conventions

Lifecycle

ErrorCatalog

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

IntegrationEdges

IntegrationEdges

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

UsageTerms

Company 1

The organization behind the API

Website

Website

Other 6

Properties that don't map to a standard resource type

Overlay

AgentCard

Hosts

Vendors

DataProcessing

Eligibility

Source (apis.yml)

aid: checkpoint402-com
name: Checkpoint402
description: 'Checkpoint402 sells checked data for AI agents on a pay-per-call basis: transaction explanations for Base and
  Ethereum, DeFi yield discovery (DefiLlama), new-token and token safety checks (GoPlus, GeckoTerminal, DexScreener), SEC
  8-K company events (SEC EDGAR) and US Treasury OFAC sanctions screening. Every service is a plain HTTPS GET on api.checkpoint402.com
  returning JSON, with no account or API key: each request is paid individually (from $0.02) in USDC on Base via the x402
  HTTP payment standard, and failed requests are never charged. The same services are offered as a remote MCP server at https://api.checkpoint402.com/mcp.'
url: https://artifacts.apis.io/checkpoint402-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: medium
  probe_state: covered
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Company
- AI Agents
- x402
- Payments
- Cryptocurrency
- DeFi
- Blockchain
- Sanctions Screening
- SEC Filings
- MCP
tags_raw:
- Company
- AI Agents
- x402
- Payments
- Crypto
- DeFi
- Blockchain
- Sanctions Screening
- SEC Filings
- MCP
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://checkpoint402.com/icon.svg
common:
- type: AgenticAccess
  url: agentic-access/checkpoint402-com-agentic-access.yml
- type: Plans
  url: plans/checkpoint402-com-plans-pricing.yml
- type: Spectral
  url: rules/checkpoint402-com-rules.yml
- type: Vocabulary
  url: vocabulary/checkpoint402-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/checkpoint402-com-conventions.yml
- type: Authentication
  url: authentication/checkpoint402-com-authentication.yml
- type: Lifecycle
  url: lifecycle/checkpoint402-com-lifecycle.yml
- type: ErrorCatalog
  url: errors/checkpoint402-com-problem-types.yml
- type: Conformance
  url: conformance/checkpoint402-com-conformance.yml
- type: Overlay
  url: overlays/checkpoint402-com-openapi-overlay.yaml
- type: AgentCard
  url: a2a/checkpoint402-com-a2a.yml
- type: ToolCrosswalk
  url: mcp/checkpoint402-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/checkpoint402-com-mcp.yml
- type: Hosts
  url: hosts/checkpoint402-com-hosts.yml
- type: IntegrationEdges
  url: integrations/checkpoint402-com-integration-edges.yml
- type: Vendors
  url: vendors/checkpoint402-com-vendors.yml
- type: DomainSecurity
  url: security/checkpoint402-com-domain-security.yml
- type: Website
  url: https://checkpoint402.com/
- type: Documentation
  url: https://checkpoint402.com/docs
- type: Support
  url: https://checkpoint402.com/contact
- type: TermsOfService
  url: https://checkpoint402.com/terms
- type: PrivacyPolicy
  url: https://checkpoint402.com/privacy
- type: UsageTerms
  url: terms/checkpoint402-com-terms-of-service.yml
- type: DataProcessing
  url: privacy/checkpoint402-com-privacy-policy.yml
- type: Eligibility
  url: eligibility/checkpoint402-com-eligibility.yml
- type: AIPreferences
  url: ai-preferences/checkpoint402-com-ai-preferences.yml
apis:
- aid: checkpoint402-com:checkpoint402-com-blockchain-api
  name: Checkpoint402 Blockchain API
  description: The blockchain API from Checkpoint402 — 1 operation(s) for blockchain.
  humanURL: https://checkpoint402.com/docs
  baseURL: https://api.checkpoint402.com
  tags:
  - Blockchain
  tags_raw:
  - blockchain
  properties:
  - type: OpenAPI
    url: openapi/checkpoint402-com-blockchain-api-openapi.yml
  - type: Documentation
    url: https://checkpoint402.com/docs
- aid: checkpoint402-com:checkpoint402-com-defi-api
  name: Checkpoint402 Defi API
  description: The defi API from Checkpoint402 — 1 operation(s) for defi.
  humanURL: https://checkpoint402.com/docs
  baseURL: https://api.checkpoint402.com
  tags:
  - DeFi
  tags_raw:
  - defi
  properties:
  - type: OpenAPI
    url: openapi/checkpoint402-com-defi-api-openapi.yml
  - type: Documentation
    url: https://checkpoint402.com/docs
- aid: checkpoint402-com:checkpoint402-com-sanctions-api
  name: Checkpoint402 Sanctions API
  description: The sanctions API from Checkpoint402 — 1 operation(s) for sanctions.
  humanURL: https://checkpoint402.com/docs
  baseURL: https://api.checkpoint402.com
  tags:
  - Sanctions
  tags_raw:
  - sanctions
  properties:
  - type: OpenAPI
    url: openapi/checkpoint402-com-sanctions-api-openapi.yml
  - type: Documentation
    url: https://checkpoint402.com/docs
- aid: checkpoint402-com:checkpoint402-com-sec-api
  name: Checkpoint402 Sec API
  description: The sec API from Checkpoint402 — 1 operation(s) for sec.
  humanURL: https://checkpoint402.com/docs
  baseURL: https://api.checkpoint402.com
  tags:
  - SEC
  tags_raw:
  - sec
  properties:
  - type: OpenAPI
    url: openapi/checkpoint402-com-sec-api-openapi.yml
  - type: Documentation
    url: https://checkpoint402.com/docs
- aid: checkpoint402-com:checkpoint402-com-tokens-api
  name: Checkpoint402 Tokens API
  description: The tokens API from Checkpoint402 — 2 operation(s) for tokens.
  humanURL: https://checkpoint402.com/docs
  baseURL: https://api.checkpoint402.com
  tags:
  - Tokens
  tags_raw:
  - tokens
  properties:
  - type: OpenAPI
    url: openapi/checkpoint402-com-tokens-api-openapi.yml
  - type: Documentation
    url: https://checkpoint402.com/docs
x-coverage:
  state: covered
  reason: identity-verified
  detail: Name, description and pointers taken from checkpoint402.com homepage, /docs and footer; no sign-up (no accounts),
    no pricing page, blog, GitHub or Postman published.
  evidence:
  - url: https://checkpoint402.com/
    status: 200
  - url: https://checkpoint402.com/docs
    status: 200
  - url: https://checkpoint402.com/contact
    status: 200
  - url: https://checkpoint402.com/terms
    status: 200
  - url: https://checkpoint402.com/privacy
    status: 200
  - url: https://checkpoint402.com/icon.svg
    status: 200
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 31
  pass: modular-v1
  engine: identity=anthropic,contract=anthropic,surfaces=anthropic,docs=anthropic,regulatory=anthropic

Checkpoint402 API — frequently asked questions

Does Checkpoint402 have an API?

Yes. APIs.io lists 5 APIs from Checkpoint402, including Checkpoint402 Blockchain API, Checkpoint402 Defi API and Checkpoint402 Sanctions API, and 2 more.

Is there an OpenAPI specification for the Checkpoint402 API?

Yes. APIs.io indexes 5 OpenAPI specifications for Checkpoint402, each linked for download from this page.

How do I authenticate with the Checkpoint402 API?

Checkpoint402 uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Checkpoint402 Authentication.

How much does the Checkpoint402 API cost?

Checkpoint402 publishes its prices; its Transaction Explainer plan is $0.03 as of 2026-11-03. APIs.io lists 7 pricing plans for Checkpoint402, with each plan's price, limits and inclusions under Pricing on this page.

Does Checkpoint402 have an MCP server?

Yes. APIs.io lists 1 MCP server for Checkpoint402: Remote MCP server at api.checkpoint402.com; 7 tools listed.

Is the Checkpoint402 API ready for AI agents?

Checkpoint402 has a Kin Score of 36.6 out of 100 (thin) and an Agent Readiness score of 39.5 (agent-native), scored by API Evangelist on 2026-11-13.

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