finzdata-com

FinzData provides comprehensive historical market data APIs covering US stocks, options, futures, crypto, and macroeconomic series. Their platform offers point‑in‑time, survivorship‑bias‑free datasets spanning over 26 years, including delisted securities, with granular intraday bars and extensive fundamentals. Users can access data via REST endpoints or a Python client, with free tier access and paid bundles for deeper coverage.

finzdata-com is listed with 1 API on the APIs.io network. Tagged areas include Finance, Market Data, Historical Data, API, and Python.

finzdata-com’s developer surface includes authentication, support, getting-started guide, documentation, API reference, pricing, signup flow, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.0/100 thin Agent 26/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API 1 MCP Servers

Finance Market Data Historical DataAPIPython

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 37.0/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 12.4 / 17

Operational Transparency 1.7 / 11

Contract Governance 1.7 / 10

Discoverability 5.7 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 0 / 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 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 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

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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

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 0.0 — up to +25.0 composite points
Operational Transparency scores 15.8 — up to +10.9 composite points
Contract Governance scores 16.4 — up to +10.0 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/finzdata-com/apis.yml: open an issue on github.com/api-evangelist/finzdata-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 →

APIs 1

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

FinzData API

Provides market data endpoints as defined in the OpenAPI spec.

MCP Servers 1

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

finzdata-com MCP Server

Remote MCP server at api.finzdata.com.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Finzdata Com Plans Pricing

9 plans

PLANS

Security Posture 2

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

Finzdata Com Authentication

2 schemes

SECURITY

Finzdata Com Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

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

Support

Support

StatusPage

StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

AgentCard

Hosts

Vendors

Leadership

Source (apis.yml)

aid: finzdata-com
name: finzdata-com
image: https://finzdata.com/assets/brand/finzdata-og.png
description: FinzData provides comprehensive historical market data APIs covering US stocks, options, futures, crypto, and
  macroeconomic series. Their platform offers point‑in‑time, survivorship‑bias‑free datasets spanning over 26 years, including
  delisted securities, with granular intraday bars and extensive fundamentals. Users can access data via REST endpoints or
  a Python client, with free tier access and paid bundles for deeper coverage.
url: https://artifacts.apis.io/finzdata-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Finance
- Market Data
- Historical Data
- API
- Python
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/finzdata-com-plans-pricing.yml
- type: Authentication
  url: authentication/finzdata-com-authentication.yml
- type: Conformance
  url: conformance/finzdata-com-conformance.yml
- type: LLMsTxt
  url: llms/finzdata-com-llms.txt
- type: AgentCard
  url: a2a/finzdata-com-a2a.yml
- type: ToolCrosswalk
  url: mcp/finzdata-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/finzdata-com-mcp.yml
- type: WellKnown
  url: well-known/finzdata-com-well-known.yml
- type: Hosts
  url: hosts/finzdata-com-hosts.yml
- type: Vendors
  url: vendors/finzdata-com-vendors.yml
- type: SDKs
  url: packages/finzdata-com-packages.yml
- type: Packages
  url: packages/finzdata-com-packages.yml
- type: TermsOfService
  url: https://finzdata.com/terms
- type: Support
  url: https://finzdata.com/support
- type: StatusPage
  url: https://finzdata.com/status
- type: PrivacyPolicy
  url: https://finzdata.com/privacy
- type: Leadership
  url: https://data.finzdata.com/stock/team
- type: GettingStarted
  url: https://finzdata.com/docs?ref=llms
- type: DomainSecurity
  url: security/finzdata-com-domain-security.yml
- type: Website
  url: https://finzdata.com/
- type: Documentation
  url: https://finzdata.com/docs
- type: APIReference
  url: https://api.finzdata.com/docs
- type: Pricing
  url: https://finzdata.com/shop
- type: SignUp
  url: https://finzdata.com/signin
apis:
- name: FinzData API
  description: Provides market data endpoints as defined in the OpenAPI spec.
  humanURL: https://api.finzdata.com/docs
  baseURL: https://api.finzdata.com
  aid: finzdata-com:finzdata-api
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

finzdata-com API — frequently asked questions

Does finzdata-com have an API?

Yes. APIs.io lists 1 API from finzdata-com, including FinzData API.

How do I authenticate with the finzdata-com API?

finzdata-com documents its authentication (2 schemes). The details are profiled on APIs.io as Finzdata Com Authentication.

How much does the finzdata-com API cost?

APIs.io lists 9 pricing plans for finzdata-com, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does finzdata-com have an MCP server?

Yes. APIs.io lists 1 MCP server for finzdata-com: Remote MCP server at api.finzdata.com.

Is the finzdata-com API ready for AI agents?

finzdata-com has a Kin Score of 37.0 out of 100 (thin) and an Agent Readiness score of 26.1 (agent-aware), scored by API Evangelist on 2026-10-31.

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