Block Lottos

Block Lottos is a blockchain lottery platform (Polygon Fortune Ledger, paid in POL, and Base Future Ledger, paid in USDC on Base) that publishes a public, key-free REST API for live jackpots, draw history, wallet tickets, prize status and commit-reveal draw proofs, an unsigned-transaction builder for tickets and banner-ad placements, and a Base-first agent purchase flow (capabilities, free referral enrollment, one-ticket preparation with a price cap and idempotency key, on-chain confirmation). It ships an OpenAPI 3.1 document, llms.txt and agents.txt, an ai-plugin manifest, an agent card at /.well-known/agent.json, a provider-authored SKILL.md and an open-source stdio MCP server on PyPI (blocklottos-mcp). The server never holds keys, signs or broadcasts; every purchase is non-custodial.

Block Lottos publishes 4 API contracts indexed on the APIs.io network, including Advertising API, Affiliate API, Agents API, and 1 more. Tagged areas include Company, Lottery, Blockchain, Web3, and Gaming.

Block Lottos’ developer surface includes documentation, API reference, getting-started guide, support, FAQ, pricing, authentication, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

56.0/100 strong ▬ flat Agent 41/100 agent ready Front door AI 1/6 silent Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0

4 published contracts 1 MCP Servers

Company Lottery Blockchain Web3 Gaming Cryptocurrency Advertising Affiliate Marketing AI Agents Base Polygon USDC Smart Contracts A2A

Kin Score

Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0

Composite quality — 56.0/100 · strong

Contract Quality 9.6 / 19

Developer Ergonomics 7.9 / 15

Access Clarity 9.5 / 15

Operational Transparency 4.6 / 10

Contract Governance 1.6 / 9

Discoverability 5.1 / 8

Regulatory Posture 5.1 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 41/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 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

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/.

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 github.com/api-evangelist/blocklottos-com: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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

Block Lottos Advertising API

Display advertising API - submit, manage, and track ads on Block Lottos.

Block Lottos Affiliate API

The Affiliate API from Block Lottos — 1 operation(s) for affiliate.

Block Lottos Agents API

The Agents API from Block Lottos — 4 operation(s) for agents.

Block Lottos Lottery API

Lottery data and transaction builders for Polygon Fortune Ledger and Base Future Ledger

MCP Servers 1

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

blocklottos-mcp - local stdio only (PyPI + self-hosted Git), no remote endpoint

Block Lottos ships ONE MCP server, "Block Lottos" (blocklottos_mcp, MIT), as a local stdio Python package - on PyPI as blocklottos-mcp (1.0.2, released 2026-09-10) and as a self...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Blocklottos Com Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Blocklottos Com Rate Limits

17 limits

RATE LIMITS

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.

Blocklottos Com Openapi Overlay

9 actions · update · blocklottos-com-openapi.yml

GENERATED

Security Posture 3

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

Blocklottos Com Authentication

none/http-bearer/wallet-signature · 4 schemes

SECURITY

Blocklottos Com Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Blocklottos Com Vulnerability Disclosure

no policy recorded

SECURITY

Agentic Access 1

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

Blocklottos Com Agentic Access

20 operations · 8 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

WellKnown

MCPServer

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

Lifecycle

Conventions

Idempotency

ErrorCatalog

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

SourceCode

SourceCode

Packages

Packages

Examples

Examples

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 3

Status, limits, changes, and where to get help

Support

Support

FAQ

FAQ

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

Overlay

Overlay

AgentCard

AgentCard

DataSubjectRequest

DataSubjectRequest

Source (apis.yml)

aid: blocklottos-com
name: Block Lottos
description: Block Lottos is a blockchain lottery platform (Polygon Fortune Ledger, paid in POL, and Base Future Ledger, paid
  in USDC on Base) that publishes a public, key-free REST API for live jackpots, draw history, wallet tickets, prize status
  and commit-reveal draw proofs, an unsigned-transaction builder for tickets and banner-ad placements, and a Base-first agent
  purchase flow (capabilities, free referral enrollment, one-ticket preparation with a price cap and idempotency key, on-chain
  confirmation). It ships an OpenAPI 3.1 document, llms.txt and agents.txt, an ai-plugin manifest, an agent card at /.well-known/agent.json,
  a provider-authored SKILL.md and an open-source stdio MCP server on PyPI (blocklottos-mcp). The server never holds keys,
  signs or broadcasts; every purchase is non-custodial.
url: https://raw.githubusercontent.com/api-evangelist/blocklottos-com/refs/heads/main/apis.yml
image: https://blocklottos.com/images/logo21.png
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Company
- Lottery
- Blockchain
- Web3
- Gaming
- Cryptocurrency
- Advertising
- Affiliate Marketing
- AI Agents
- Base
- Polygon
- USDC
- Smart Contracts
- A2A
apis:
- aid: blocklottos-com:blocklottos-com-advertising-api
  name: Block Lottos Advertising API
  description: Display advertising API - submit, manage, and track ads on Block Lottos.
  humanURL: https://blocklottos.com/api-docs
  tags:
  - Advertising
  properties:
  - type: OpenAPI
    url: openapi/blocklottos-com-advertising-api-openapi.yml
  - type: Documentation
    url: https://blocklottos.com/api-docs
  - type: APIReference
    url: https://blocklottos.com/api-docs
  - type: GettingStarted
    url: https://blocklottos.com/api-docs#ads-quickstart
  - type: RateLimits
    url: rate-limits/blocklottos-com-rate-limits.yml
  - type: ErrorCatalog
    url: errors/blocklottos-com-problem-types.yml
  - type: DataModel
    url: data-model/blocklottos-com-data-model.yml
  - type: Examples
    url: examples/blocklottos-com-examples.yml
  - type: ToolCrosswalk
    url: mcp/blocklottos-com-tool-crosswalk.yml
- aid: blocklottos-com:blocklottos-com-affiliate-api
  name: Block Lottos Affiliate API
  description: The Affiliate API from Block Lottos — 1 operation(s) for affiliate.
  humanURL: https://blocklottos.com/api-docs
  tags:
  - Affiliates
  tags_raw:
  - Affiliate
  properties:
  - type: OpenAPI
    url: openapi/blocklottos-com-affiliate-api-openapi.yml
  - type: Documentation
    url: https://blocklottos.com/api-docs
  - type: APIReference
    url: https://blocklottos.com/api-docs
  - type: GettingStarted
    url: https://blocklottos.com/api-docs#ads-quickstart
  - type: RateLimits
    url: rate-limits/blocklottos-com-rate-limits.yml
  - type: ErrorCatalog
    url: errors/blocklottos-com-problem-types.yml
  - type: DataModel
    url: data-model/blocklottos-com-data-model.yml
  - type: Examples
    url: examples/blocklottos-com-examples.yml
  - type: ToolCrosswalk
    url: mcp/blocklottos-com-tool-crosswalk.yml
- aid: blocklottos-com:blocklottos-com-agents-api
  name: Block Lottos Agents API
  description: The Agents API from Block Lottos — 4 operation(s) for agents.
  humanURL: https://blocklottos.com/api-docs
  tags:
  - Agents
  properties:
  - type: OpenAPI
    url: openapi/blocklottos-com-agents-api-openapi.yml
  - type: Documentation
    url: https://blocklottos.com/api-docs
  - type: APIReference
    url: https://blocklottos.com/api-docs
  - type: GettingStarted
    url: https://blocklottos.com/api-docs#ads-quickstart
  - type: RateLimits
    url: rate-limits/blocklottos-com-rate-limits.yml
  - type: ErrorCatalog
    url: errors/blocklottos-com-problem-types.yml
  - type: DataModel
    url: data-model/blocklottos-com-data-model.yml
  - type: Examples
    url: examples/blocklottos-com-examples.yml
  - type: ToolCrosswalk
    url: mcp/blocklottos-com-tool-crosswalk.yml
- aid: blocklottos-com:blocklottos-com-lottery-api
  name: Block Lottos Lottery API
  description: Lottery data and transaction builders for Polygon Fortune Ledger and Base Future Ledger
  humanURL: https://blocklottos.com/api-docs
  tags:
  - Lottery
  properties:
  - type: OpenAPI
    url: openapi/blocklottos-com-lottery-api-openapi.yml
  - type: Documentation
    url: https://blocklottos.com/api-docs
  - type: APIReference
    url: https://blocklottos.com/api-docs
  - type: GettingStarted
    url: https://blocklottos.com/api-docs#ads-quickstart
  - type: RateLimits
    url: rate-limits/blocklottos-com-rate-limits.yml
  - type: ErrorCatalog
    url: errors/blocklottos-com-problem-types.yml
  - type: DataModel
    url: data-model/blocklottos-com-data-model.yml
  - type: Examples
    url: examples/blocklottos-com-examples.yml
  - type: ToolCrosswalk
    url: mcp/blocklottos-com-tool-crosswalk.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/blocklottos-com-openapi-overlay.yaml
- type: AgenticAccess
  url: agentic-access/blocklottos-com-agentic-access.yml
- type: Website
  url: https://blocklottos.com/
- type: Documentation
  url: https://blocklottos.com/api-docs
- type: APIReference
  url: https://blocklottos.com/api-docs
- type: GettingStarted
  url: https://blocklottos.com/api-docs#ads-quickstart
- type: Support
  url: https://blocklottos.com/contact
- type: FAQ
  url: https://blocklottos.com/faq
- type: Pricing
  name: Advertising placement pricing (USDC) — the API itself is free and key-less
  url: https://blocklottos.com/advertise
- type: TermsOfService
  url: https://blocklottos.com/terms
- type: PrivacyPolicy
  url: https://blocklottos.com/privacy
- type: SourceCode
  name: blocklottos-agent-tools (MCP server + SKILL.md), self-hosted public Git
  url: https://blocklottos.com/git/blocklottos-agent-tools.git
- type: DomainSecurity
  url: security/blocklottos-com-domain-security.yml
- type: LLMsTxt
  name: llms.txt (verbatim from https://blocklottos.com/llms.txt)
  url: llms/blocklottos-com-llms.txt
- type: AgentCard
  name: A2A agent card at legacy /.well-known/agent.json - graded flavored (no protocolVersion)
  url: a2a/blocklottos-com-a2a.yml
- type: WellKnown
  url: well-known/blocklottos-com-well-known.yml
- type: MCPServer
  name: blocklottos-mcp - local stdio only (PyPI + self-hosted Git), no remote endpoint
  url: mcp/blocklottos-com-mcp.yml
- type: Packages
  url: packages/blocklottos-com-packages.yml
- type: AgentSkill
  name: provider-published SKILL.md + two generated REST-grounded skills
  url: skills/_index.yml
- type: Authentication
  url: authentication/blocklottos-com-authentication.yml
- type: Conformance
  url: conformance/blocklottos-com-conformance.yml
- type: Lifecycle
  url: lifecycle/blocklottos-com-lifecycle.yml
- type: Conventions
  url: conventions/blocklottos-com-conventions.yml
- type: Idempotency
  name: 'idempotency_key on agent-purchase - coverage: partial (correlation-only, 2 of 8 writes)'
  url: conventions/blocklottos-com-conventions.yml
- type: Plans
  url: plans/blocklottos-com-plans-pricing.yml
- type: RateLimits
  url: rate-limits/blocklottos-com-rate-limits.yml
- type: ErrorCatalog
  url: errors/blocklottos-com-problem-types.yml
- type: DataModel
  url: data-model/blocklottos-com-data-model.yml
- type: Examples
  url: examples/blocklottos-com-examples.yml
- type: VulnerabilityDisclosure
  url: security/blocklottos-com-vulnerability-disclosure.yml
- type: Security
  name: SECURITY.md disclosure channel (support@blocklottos.com), scoped to the agent-tools repository; no security.txt
  url: security/blocklottos-com-vulnerability-disclosure.yml
- type: DataSubjectRequest
  name: Privacy Policy section 6 - deletion right via the contact page (thin; see regulatory/)
  url: https://blocklottos.com/privacy
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 33
  pass: local-v3

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