Crosswire

Crosswire provides a pre‑trade resolution‑truth gate for cross‑venue trading agents. It audits event markets across platforms like Polymarket and Kalshi, returning SAFE, CAUTION, or BLOCK verdicts with detailed rule divergences. The service operates statelessly, machine‑to‑machine, at a low cost per call, helping users avoid settlement mismatches and protect hedged positions.

Crosswire publishes 5 API contracts indexed on the APIs.io network, including Adoption API, Audit API, Events API, and 2 more. Tagged areas include Finance, Trading, Cryptocurrency, and Risk Management.

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

Crosswire’s developer surface includes documentation, API reference, getting-started guide, and 11 more developer resources.

🌐 Visit website📡 Profile data on GitHub
24.3/100 emerging Agent 15/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
1 published contract
FinanceTradingCryptocurrencyRisk Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Composite quality — 24.3/100 · emerging
Contract Quality 10.3 / 21
Developer Ergonomics 4.9 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Contract Governance 2.2 / 10
Discoverability 4.6 / 9
Regulatory Posture 1.5 / 15
Agent readiness — 15/100 · 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 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 Well-Known Document 0 / 5
Pagination 0 / 5
Distinct Operations 3 / 3
MCP Tool Quality 6 / 6
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime (on an ambiguous tag, where no other regime matched), 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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<a href="https://apis.io/providers/crosswire-api-com/"><img src="https://apis.io/badge/crosswire-api-com/card.svg" alt="Crosswire on APIs.io — Kin Score by API Evangelist"></a>
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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)
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • 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
11 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/crosswire-api-com/apis.yml: open an issue on github.com/api-evangelist/crosswire-api-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 1

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.

OpenAPI
measured — observed by APIs.io (published)

APIs 5

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

Crosswire Adoption API

The Adoption API from Crosswire — 1 operation(s) for adoption.

Crosswire Audit API

The Audit API from Crosswire — 1 operation(s) for audit.

Crosswire Events API

The Events API from Crosswire — 1 operation(s) for events.

Crosswire Health API

The Health API from Crosswire — 1 operation(s) for health.

Crosswire Live API

The Live API from Crosswire — 1 operation(s) for live.

Semantic Vocabularies 1

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

Crosswire Api Com Context

7 classes · 34 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Crosswire API Rules

33 rules · 31 errors 1 warnings 1 info

SPECTRAL

JSON Schema 5

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

EventInfo

6 properties

JSON SCHEMA

HealthResponse

9 properties

JSON SCHEMA

LivenessResponse

7 properties

JSON SCHEMA

VenueMarketRef

0 properties

JSON SCHEMA

Venue

0 properties

JSON SCHEMA

Security Posture 1

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

Crosswire Api Com Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Crosswire Api Com Agentic Access

5 operations · 1 acting

5 operations · 1 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 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 JSONLD
JSONLD
 Vocabulary
Vocabulary
 DataModel
DataModel
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: crosswire-api-com
name: Crosswire
description: Crosswire provides a pre‑trade resolution‑truth gate for cross‑venue trading agents. It audits event markets
  across platforms like Polymarket and Kalshi, returning SAFE, CAUTION, or BLOCK verdicts with detailed rule divergences.
  The service operates statelessly, machine‑to‑machine, at a low cost per call, helping users avoid settlement mismatches
  and protect hedged positions.
url: https://artifacts.apis.io/crosswire-api-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-04 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-11-04'
modified: '2026-11-04'
tags:
- Finance
- Trading
- Cryptocurrency
- Risk Management
tags_raw:
- API
- Finance
- Trading
- Crypto
- Risk
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/crosswire-api-com-agentic-access.yml
- type: Spectral
  url: rules/crosswire-api-com-rules.yml
- type: JSONLD
  url: json-ld/crosswire-api-com-context.jsonld
- type: Vocabulary
  url: vocabulary/crosswire-api-com-vocabulary.yml
- type: DataModel
  url: data-model/crosswire-api-com-data-model.yml
- type: ErrorCatalog
  url: errors/crosswire-api-com-problem-types.yml
- type: Conformance
  url: conformance/crosswire-api-com-conformance.yml
- type: Hosts
  url: hosts/crosswire-api-com-hosts.yml
- type: Vendors
  url: vendors/crosswire-api-com-vendors.yml
- type: DomainSecurity
  url: security/crosswire-api-com-domain-security.yml
- type: Website
  url: https://crosswire-api.com/
- type: Documentation
  url: https://api.crosswire-api.com/docs
- type: APIReference
  url: https://api.crosswire-api.com/openapi.json
- type: GettingStarted
  url: https://api.crosswire-api.com/docs#/default/health_v1_health_get
apis:
- aid: crosswire-api-com:crosswire-api-com-adoption-api
  name: Crosswire Adoption API
  description: The Adoption API from Crosswire — 1 operation(s) for adoption.
  humanURL: https://api.crosswire-api.com/docs
  baseURL: https://api.crosswire-api.com
  tags:
  - Adoption
  properties:
  - type: OpenAPI
    url: openapi/crosswire-api-com-adoption-api-openapi.yml
  - type: JSONSchema
    url: json-schema/crosswire-api-com-health-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-liveness-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-event-info-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-market-ref-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-schema.json
- aid: crosswire-api-com:crosswire-api-com-audit-api
  name: Crosswire Audit API
  description: The Audit API from Crosswire — 1 operation(s) for audit.
  humanURL: https://api.crosswire-api.com/docs
  baseURL: https://api.crosswire-api.com
  tags:
  - Audit
  properties:
  - type: OpenAPI
    url: openapi/crosswire-api-com-audit-api-openapi.yml
  - type: JSONSchema
    url: json-schema/crosswire-api-com-health-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-liveness-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-event-info-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-market-ref-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-schema.json
- aid: crosswire-api-com:crosswire-api-com-events-api
  name: Crosswire Events API
  description: The Events API from Crosswire — 1 operation(s) for events.
  humanURL: https://api.crosswire-api.com/docs
  baseURL: https://api.crosswire-api.com
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/crosswire-api-com-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/crosswire-api-com-health-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-liveness-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-event-info-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-market-ref-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-schema.json
- aid: crosswire-api-com:crosswire-api-com-health-api
  name: Crosswire Health API
  description: The Health API from Crosswire — 1 operation(s) for health.
  humanURL: https://api.crosswire-api.com/docs
  baseURL: https://api.crosswire-api.com
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/crosswire-api-com-health-api-openapi.yml
  - type: JSONSchema
    url: json-schema/crosswire-api-com-health-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-liveness-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-event-info-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-market-ref-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-schema.json
- aid: crosswire-api-com:crosswire-api-com-live-api
  name: Crosswire Live API
  description: The Live API from Crosswire — 1 operation(s) for live.
  humanURL: https://api.crosswire-api.com/docs
  baseURL: https://api.crosswire-api.com
  tags:
  - Live
  properties:
  - type: OpenAPI
    url: openapi/crosswire-api-com-live-api-openapi.yml
  - type: JSONSchema
    url: json-schema/crosswire-api-com-health-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-liveness-response-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-event-info-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-market-ref-schema.json
  - type: JSONSchema
    url: json-schema/crosswire-api-com-venue-schema.json
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Crosswire API — frequently asked questions

Does Crosswire have an API?

Yes. APIs.io lists 5 APIs from Crosswire, including Crosswire Adoption API, Crosswire Audit API and Crosswire Events API, and 2 more.

Is there an OpenAPI specification for the Crosswire API?

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

Is the Crosswire API ready for AI agents?

Crosswire has a Kin Score of 24.3 out of 100 (emerging) and an Agent Readiness score of 14.9 (agent-aware), scored by API Evangelist on 2026-11-06.

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