BlockSigner

blocksigner-org is a company surfaced via the API Evangelist harvest backlog (source: mcp-registry) and added to the network as a stub for full-pipeline profiling.

BlockSigner publishes 3 API contracts indexed on the APIs.io network: Agent World (12) API, Free API, and Provenance (5) API. Tagged areas include Company.

The BlockSigner catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

🌐 Visit website 📡 Profile data on GitHub

22.9/100 emerging Agent 19/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Company

Kin Score

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

Composite quality — 22.9/100 · emerging

Contract Quality 11.3 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.1 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 10.5 — up to +17.9 composite points
Operational Transparency scores 0.0 — up to +13.0 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/blocksigner-org/apis.yml: open an issue on github.com/api-evangelist/blocksigner-org 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 2

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 (flavored)

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

BlockSigner Agent World (12) API

hire the six living agents - $0.005 to $0.05

BlockSigner Free API

The Free API from BlockSigner — 1 operation(s) for free.

BlockSigner Provenance (5) API

wash-trading ratings, funder-traced audits and the full research dataset for Algorand x402 merchants - $0.005 to $5.00

Semantic Vocabularies 1

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

Blocksigner Org Context

2 classes · 7 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

BlockSigner API Rules

44 rules · 39 errors 4 warnings 1 info

SPECTRAL

JSON Schema 1

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

Product

1 properties

JSON SCHEMA

Security Posture 1

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

Blocksigner Org Domain Security

TLSv1.3

SECURITY

Agentic Access 1

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

Blocksigner Org Agentic Access

18 operations

18 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Source (apis.yml)

aid: blocksigner-org
name: BlockSigner
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://blocksigner.org/art/sol
description: 'blocksigner-org is a company surfaced via the API Evangelist harvest backlog (source: mcp-registry) and added
  to the network as a stub for full-pipeline profiling.'
url: https://artifacts.apis.io/blocksigner-org/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-02'
modified: '2026-11-02'
tags:
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/blocksigner-org-agentic-access.yml
- type: Spectral
  url: rules/blocksigner-org-rules.yml
- type: JSONLD
  url: json-ld/blocksigner-org-context.jsonld
- type: Vocabulary
  url: vocabulary/blocksigner-org-vocabulary.yml
- type: DataModel
  url: data-model/blocksigner-org-data-model.yml
- type: ErrorCatalog
  url: errors/blocksigner-org-problem-types.yml
- type: Conformance
  url: conformance/blocksigner-org-conformance.yml
- type: LLMsTxt
  url: llms/blocksigner-org-llms.txt
- type: AgentCard
  url: a2a/blocksigner-org-a2a.yml
- type: Hosts
  url: hosts/blocksigner-org-hosts.yml
- type: TermsOfService
  url: https://blocksigner.org/terms
- type: PrivacyPolicy
  url: https://blocksigner.org/privacy
- type: DomainSecurity
  url: security/blocksigner-org-domain-security.yml
- type: Website
  url: https://blocksigner.org/
apis:
- aid: blocksigner-org:blocksigner-org-agent-world-12-api
  name: BlockSigner Agent World (12) API
  description: hire the six living agents - $0.005 to $0.05
  humanURL: https://blocksigner.org
  baseURL: https://blocksigner.org
  tags:
  - Agent World (12)
  properties:
  - type: OpenAPI
    url: openapi/blocksigner-org-agent-world-12-api-openapi.yml
  - type: JSONSchema
    url: json-schema/blocksigner-org-product-schema.json
- aid: blocksigner-org:blocksigner-org-free-api
  name: BlockSigner Free API
  description: The Free API from BlockSigner — 1 operation(s) for free.
  humanURL: https://blocksigner.org
  baseURL: https://blocksigner.org
  tags:
  - Free
  properties:
  - type: OpenAPI
    url: openapi/blocksigner-org-free-api-openapi.yml
  - type: JSONSchema
    url: json-schema/blocksigner-org-product-schema.json
- aid: blocksigner-org:blocksigner-org-provenance-5-api
  name: BlockSigner Provenance (5) API
  description: wash-trading ratings, funder-traced audits and the full research dataset for Algorand x402 merchants - $0.005
    to $5.00
  humanURL: https://blocksigner.org
  baseURL: https://blocksigner.org
  tags:
  - Provenance (5)
  properties:
  - type: OpenAPI
    url: openapi/blocksigner-org-provenance-5-api-openapi.yml
  - type: JSONSchema
    url: json-schema/blocksigner-org-product-schema.json
x-enrichment:
  date: '2026-11-02'
  status: enriched
  artifacts_added: 20
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

BlockSigner API — frequently asked questions

Does BlockSigner have an API?

Yes. APIs.io lists 3 APIs from BlockSigner, including BlockSigner Agent World (12) API, BlockSigner Free API and BlockSigner Provenance (5) API.

Is there an OpenAPI specification for the BlockSigner API?

Yes. APIs.io indexes 3 OpenAPI specifications for BlockSigner, each linked for download from this page.

Is the BlockSigner API ready for AI agents?

BlockSigner has a Kin Score of 22.9 out of 100 (emerging) and an Agent Readiness score of 18.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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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.

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