TickerLayer

TickerLayer provides real‑time market data APIs for developers, offering REST and WebSocket endpoints covering stocks, forex, crypto, indices, ETFs, commodities, bonds and perpetual contracts. The platform delivers live quotes, historical bars, and market fundamentals with flexible pricing tiers, supporting AI agents and integration into trading applications.

TickerLayer is listed with 1 API on the APIs.io network. Tagged areas include Company, Market Data, Real-Time, and Finance.

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

TickerLayer’s developer surface includes changelog, sandbox, authentication, documentation, getting-started guide, pricing, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

46.4/100 developing ▲ 6.9 Agent 44/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 API

Company Market Data Real-Time Finance

Kin Score

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

Composite quality — 46.4/100 · developing

Contract Quality 5.5 / 21

Developer Ergonomics 9.7 / 17

Access Clarity 11.2 / 17

Operational Transparency 4.7 / 11

Contract Governance 2.2 / 10

Discoverability 5.7 / 9

Regulatory Posture 3.5 / 15

Agent readiness — 44/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 Securities & Market Data 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link 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 →

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.0 — up to +18.5 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 composite points Ask about this →
Developer Ergonomics scores 57.1 — up to +8.6 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/tickerlayer/apis.yml: open an issue on github.com/api-evangelist/tickerlayer 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

TickerLayer API

TickerLayer API as documented publicly: 21 operations. Contract generated from the documentation by API Evangelist (2026-10-21); not the provider's own document.

TickerLayer API pricing

Prices published by TickerLayer, read 2026-10-21 from tickerlayer.com/pricing.

Plan	Price
Free	$0
Individual	$49/mo
Business	$449/mo
Enterprise	Custom pricing

Plan details, limits and sources →

Rate limits

Monthly REST quota (Free plan): 3,000 every 30 days
Monthly REST quota (Individual plan): 250K per feed
Monthly REST quota (Business plan): 25M per feed

All 12 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

TickerLayer Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

TickerLayer Rate Limits

12 limits

RATE LIMITS

Terms of Service 1

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

TickerLayer

10 quoted statements, read from TickerLayer's own page on 2026-11-10.

TERMS

Privacy & Data 1

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

TickerLayer

17 quoted statements, read from TickerLayer's own page on 2026-11-10.

PRIVACY

Eligibility 1

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

TickerLayer

1 quoted statement, read from TickerLayer's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

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

TickerLayer

1 quoted statement, read from TickerLayer's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

TickerLayer

1 quoted statement, read from TickerLayer's own page on 2026-11-10.

LICENSE

Semantic Vocabularies 1

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

Tickerlayer Context

21 classes · 28 properties

JSON-LD

Spectral Rules 1

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

TickerLayer API Rules

13 rules · 11 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

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

GetEtfsAggSymbolPrevResponse

6 properties

JSON SCHEMA

GetIndicesAggSymbolNSpanFromToResponse

6 properties

JSON SCHEMA

GetIndicesAggSymbolPrevResponse

6 properties

JSON SCHEMA

GetIndicesSnapshotSymbolResponse

10 properties

JSON SCHEMA

GetIndicesSymbolsResponse

3 properties

JSON SCHEMA

GetStocksSnapshotSymbolResponse

11 properties

JSON SCHEMA

Security Posture 2

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

TickerLayer Authentication

2 schemes

SECURITY

TickerLayer Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

AIPreferences

AIPreferences

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPManifest

X-MCPManifest

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

Commercial 6

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

Hosts

Vendors

DataProcessing

Eligibility

Source (apis.yml)

aid: tickerlayer
name: TickerLayer
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-13'
  method: derived
image: https://tickerlayer.com/opengraph-image
description: TickerLayer provides real‑time market data APIs for developers, offering REST and WebSocket endpoints covering
  stocks, forex, crypto, indices, ETFs, commodities, bonds and perpetual contracts. The platform delivers live quotes, historical
  bars, and market fundamentals with flexible pricing tiers, supporting AI agents and integration into trading applications.
url: https://raw.githubusercontent.com/api-evangelist/tickerlayer/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-21 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-20'
modified: '2026-10-20'
tags:
- Company
- Market Data
- Real-Time
- Finance
tags_raw:
- Company
- MarketData
- API
- RealTime
- Finance
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: X-MCPManifest
  url: mcp/tickerlayer-hosted-mcp.yml
- type: RateLimits
  url: rate-limits/tickerlayer-rate-limits.yml
- type: Plans
  url: plans/tickerlayer-plans-pricing.yml
- type: Spectral
  url: rules/tickerlayer-rules.yml
- type: JSONLD
  url: json-ld/tickerlayer-context.jsonld
- type: Vocabulary
  url: vocabulary/tickerlayer-vocabulary.yml
- type: DataModel
  url: data-model/tickerlayer-data-model.yml
- type: ChangeLog
  url: changelog/tickerlayer-changelog.yml
- type: Sandbox
  url: sandbox/tickerlayer-sandbox.yml
- type: Authentication
  url: authentication/tickerlayer-authentication.yml
- type: Conformance
  url: conformance/tickerlayer-conformance.yml
- type: LLMsTxt
  url: llms/tickerlayer-llms.txt
- type: WellKnown
  url: well-known/tickerlayer-well-known.yml
- type: Hosts
  url: hosts/tickerlayer-hosts.yml
- type: Vendors
  url: vendors/tickerlayer-vendors.yml
- type: SDKs
  url: packages/tickerlayer-packages.yml
- type: Packages
  url: packages/tickerlayer-packages.yml
- type: DomainSecurity
  url: security/tickerlayer-domain-security.yml
- type: Website
  url: https://tickerlayer.com
- type: Documentation
  url: https://tickerlayer.com/docs
- type: DeveloperPortal
  url: https://tickerlayer.com
- type: GettingStarted
  url: https://tickerlayer.com/docs/quickstart
- type: Pricing
  url: https://tickerlayer.com/pricing
- type: TermsOfService
  url: https://tickerlayer.com/terms-of-use
- type: PrivacyPolicy
  url: https://tickerlayer.com/privacy-policy
- type: UsageTerms
  url: terms/tickerlayer-terms-of-service.yml
- type: DataProcessing
  url: privacy/tickerlayer-privacy-policy.yml
- type: Eligibility
  url: eligibility/tickerlayer-eligibility.yml
- type: AIPreferences
  url: ai-preferences/tickerlayer-ai-preferences.yml
- type: DataLicense
  url: data-license/tickerlayer-data-license.yml
apis:
- aid: tickerlayer:tickerlayer-api
  name: TickerLayer API
  description: 'TickerLayer API as documented publicly: 21 operations. Contract generated from the documentation by API Evangelist
    (2026-10-21); not the provider''s own document.'
  humanURL: https://tickerlayer.com/learn/etf-api
  baseURL: https://api.tickerlayer.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/tickerlayer-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/tickerlayer-get-indices-agg-symbol-prev-response-schema.json
  - type: JSONSchema
    url: json-schema/tickerlayer-get-indices-agg-symbol-nspan-from-to-response-schema.json
  - type: JSONSchema
    url: json-schema/tickerlayer-get-stocks-snapshot-symbol-response-schema.json
  - type: JSONSchema
    url: json-schema/tickerlayer-get-indices-snapshot-symbol-response-schema.json
  - type: JSONSchema
    url: json-schema/tickerlayer-get-etfs-agg-symbol-prev-response-schema.json
  - type: JSONSchema
    url: json-schema/tickerlayer-get-indices-symbols-response-schema.json
x-submission-notes: 'Market data: stocks, forex, crypto, indices, ETFs, commodities, perps, bond yields; REST/WS/MCP'
x-submission-probe: root 200; docs 200; .well-known/apis.json 200; OpenAPI 3.1 200 (57 paths, api.tickerlayer.com); llms.txt
  200; MCP initialize 401 (OAuth/x-api-key -- live); soft-404 clean
x-enrichment:
  date: '2026-10-21'
  status: enriched
  artifacts_added: 30
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

TickerLayer API — frequently asked questions

Does TickerLayer have an API?

Yes. APIs.io lists 1 API from TickerLayer, including TickerLayer API.

Is there an OpenAPI specification for the TickerLayer API?

Yes. APIs.io indexes 1 OpenAPI specification for TickerLayer, each linked for download from this page.

How do I authenticate with the TickerLayer API?

TickerLayer documents its authentication (2 schemes). The details are profiled on APIs.io as TickerLayer Authentication.

How much does the TickerLayer API cost?

TickerLayer publishes its prices; its Free plan is $0 as of 2026-10-21. APIs.io lists 4 pricing plans for TickerLayer, with each plan's price, limits and inclusions under Pricing on this page.

Is the TickerLayer API ready for AI agents?

TickerLayer has a Kin Score of 46.4 out of 100 (developing) and an Agent Readiness score of 44.0 (agent-ready), scored by API Evangelist on 2026-11-13.

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