ClearMarket

ClearMarket provides an institutional reference layer for prediction market data, offering graded resolution clarity, regulatory eligibility screens, and cross‑venue linking across Kalshi and Polymarket. The platform serves daily API and MCP feeds for analysts, desks, and agents to query events, signals, and methodology, supporting open access to market intelligence.

ClearMarket publishes 9 API contracts indexed on the APIs.io network, including Catalysts API, ClearMarket API, Events API, and 6 more. Tagged areas include Prediction Markets, Market Data API, Signal Feed, Daily Wire, and Market Intelligence.

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

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22.4/100 emerging Agent 26/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Prediction MarketsMarket Data APISignal FeedDaily WireMarket Intelligence

Kin Score

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

Composite quality — 22.4/100 · emerging

Contract Quality 11.7 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 26/100 · 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 4 / 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

8 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 0.0 — up to +20.0 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/clearmarket-fyi/apis.yml: open an issue on github.com/api-evangelist/clearmarket-fyi 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 (conformant)

OpenAPI

measured — observed by APIs.io (published)

APIs 9

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

ClearMarket Catalysts API

The Catalysts API from ClearMarket — 1 operation(s) for catalysts.

ClearMarket ClearMarket API

The ClearMarket API API from ClearMarket — 1 operation(s) for clearmarket api.

ClearMarket Events API

The Events API from ClearMarket — 2 operation(s) for events.

ClearMarket Keys API

The Keys API from ClearMarket — 1 operation(s) for keys.

ClearMarket Markets API

The Markets API from ClearMarket — 2 operation(s) for markets.

ClearMarket Marks API

The Marks API from ClearMarket — 1 operation(s) for marks.

ClearMarket Signals API

The Signals API from ClearMarket — 2 operation(s) for signals.

ClearMarket Spot API

The Spot API from ClearMarket — 1 operation(s) for spot.

ClearMarket Status API

The Status API from ClearMarket — 1 operation(s) for status.

Scroll for all 9

Semantic Vocabularies 1

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

Clearmarket Fyi Context

4 classes · 97 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ClearMarket API Rules

45 rules · 43 errors 1 warnings 1 info

SPECTRAL

JSON Schema 3

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

ClearMarket Event

18 properties

JSON SCHEMA

ClearMarket Market

46 properties

JSON SCHEMA

ClearMarket Resolution Log Entry

12 properties

JSON SCHEMA

Security Posture 1

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

Clearmarket Fyi Domain Security

TLSv1.3

SECURITY

Agentic Access 1

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

Clearmarket Fyi Agentic Access

12 operations · 1 acting

AGENTIC

Resources

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

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

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: clearmarket-fyi
name: ClearMarket
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://clearmarket.fyi/og.png
description: ClearMarket provides an institutional reference layer for prediction market data, offering graded resolution
  clarity, regulatory eligibility screens, and cross‑venue linking across Kalshi and Polymarket. The platform serves daily
  API and MCP feeds for analysts, desks, and agents to query events, signals, and methodology, supporting open access to market
  intelligence.
url: https://artifacts.apis.io/clearmarket-fyi/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)
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Prediction Markets
- Market Data API
- Signal Feed
- Daily Wire
- Market Intelligence
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/clearmarket-fyi-agentic-access.yml
- type: Spectral
  url: rules/clearmarket-fyi-rules.yml
- type: JSONLD
  url: json-ld/clearmarket-fyi-context.jsonld
- type: Vocabulary
  url: vocabulary/clearmarket-fyi-vocabulary.yml
- type: DataModel
  url: data-model/clearmarket-fyi-data-model.yml
- type: ErrorCatalog
  url: errors/clearmarket-fyi-problem-types.yml
- type: Conformance
  url: conformance/clearmarket-fyi-conformance.yml
- type: LLMsTxt
  url: llms/clearmarket-fyi-llms.txt
- type: AgentCard
  url: a2a/clearmarket-fyi-a2a.yml
- type: WellKnown
  url: well-known/clearmarket-fyi-well-known.yml
- type: Hosts
  url: hosts/clearmarket-fyi-hosts.yml
- type: Vendors
  url: vendors/clearmarket-fyi-vendors.yml
- type: DomainSecurity
  url: security/clearmarket-fyi-domain-security.yml
- type: Website
  url: https://clearmarket.fyi/
apis:
- aid: clearmarket-fyi:clearmarket-fyi-catalysts-api
  name: ClearMarket Catalysts API
  description: The Catalysts API from ClearMarket — 1 operation(s) for catalysts.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Catalysts
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-catalysts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-clearmarket-api-api
  name: ClearMarket ClearMarket API
  description: The ClearMarket API API from ClearMarket — 1 operation(s) for clearmarket api.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - ClearMarket API
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-clearmarket-api-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-events-api
  name: ClearMarket Events API
  description: The Events API from ClearMarket — 2 operation(s) for events.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-events-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-keys-api
  name: ClearMarket Keys API
  description: The Keys API from ClearMarket — 1 operation(s) for keys.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-markets-api
  name: ClearMarket Markets API
  description: The Markets API from ClearMarket — 2 operation(s) for markets.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-markets-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-marks-api
  name: ClearMarket Marks API
  description: The Marks API from ClearMarket — 1 operation(s) for marks.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Marks
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-marks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-signals-api
  name: ClearMarket Signals API
  description: The Signals API from ClearMarket — 2 operation(s) for signals.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Signals
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-signals-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-spot-api
  name: ClearMarket Spot API
  description: The Spot API from ClearMarket — 1 operation(s) for spot.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Spot
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-spot-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
- aid: clearmarket-fyi:clearmarket-fyi-status-api
  name: ClearMarket Status API
  description: The Status API from ClearMarket — 1 operation(s) for status.
  humanURL: https://clearmarket.fyi/api
  baseURL: https://api.clearmarket.fyi
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/clearmarket-fyi-status-api-openapi.yml
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-market-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-event-schema.json
  - type: JSONSchema
    url: json-schema/clearmarket-fyi-resolution-log-entry-schema.json
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 24
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

ClearMarket API — frequently asked questions

Does ClearMarket have an API?

Yes. APIs.io lists 9 APIs from ClearMarket, including ClearMarket Catalysts API, ClearMarket ClearMarket API and ClearMarket Events API, and 6 more.

Is there an OpenAPI specification for the ClearMarket API?

Yes. APIs.io indexes 9 OpenAPI specifications for ClearMarket, each linked for download from this page.

Is the ClearMarket API ready for AI agents?

ClearMarket has a Kin Score of 22.4 out of 100 (emerging) and an Agent Readiness score of 25.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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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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