Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 5 Complete, well-documented, and agent-ready

Adobe Suite Financial Data APIThe Financial Data API from Adobe Suite — 5 operation(s) for financial data.78.3 MX Atrium APIThe legacy MX financial data connectivity API supporting over 48,000 data connections to thousands of finan...71.0 S&P Capital IQ Market Intelligence APIComprehensive financial data API providing access to fundamental data, industry-specific and segment data, ...66.9 S&P Capital IQ ProFlagship desktop and API platform for S&P Global Market Intelligence — company fundamentals, ownership, tra...66.9 S&P Global LLM-Ready API (kFinance)REST API and Model Context Protocol server exposing S&P Capital IQ Financials, Market Data, Business Relati...66.9

Strong 7 Solid coverage with minor gaps

Bloomberg Market Data APIProvides real-time and historical market data, including stock prices, indices, commodities, and currencies.56.3 Mastercard Open Banking SolutionsMastercard Open Banking in Europe provides a set of APIs that enables both licensed and unlicensed Third Pa...55.7 Mastercard Open Banking USMastercard Open Banking US (powered by Finicity) provides APIs for financial data aggregation, account veri...55.7 Mastercard Open Finance AustraliaMastercard Open Finance Australia provides APIs for accessing consumer-permissioned financial data in the A...55.7 Mastercard Open Finance USMastercard Open Finance US (formerly Open Banking US / Finicity) provides APIs for financial data aggregati...55.7 Datarails Data Gateway Service (DGS)REST file-upload endpoint used to push a CSV or Excel file into a Datarails Filebox. Authenticated with HTT...55.3 BuiltWith Financial APIThe Financial API from BuiltWith — 1 operation(s) for financial.54.9

Developing 33 Usable, with meaningful gaps to close

73 Strings Financial Data APIThe **Financial Data APIs**, a RESTful service on 73 Strings, allows to retrieve comprehensive information ...53.0 drillr Data MCP ServerHosted Streamable HTTP MCP server (drillr-data) exposing the same financial data as ~10 agent-callable tool...52.5 Bloomberg Data APIProvides programmatic access to Bloomberg's financial market data including real-time and historical pricin...50.5 Yapily Financial Data APIIn order to access a user's Financial Data, you are required to request an [Authorisation](#tag/Authorisati...50.4 Datastream Web Service APIAPI providing access to Datastream content, the world's leading time series database, via SOAP/XML and REST...49.3 Eikon Data APIPython and R library that allows programmatic access to Refinitiv Eikon data. Provides access to instrument...49.3 Refinitiv Data Library for PythonPython library providing uniform, ease-of-use interfaces for accessing the breadth and depth of financial d...49.3 Databento Batch APISubmits asynchronous batch jobs that materialize large historical requests into downloadable flat files (DB...47.8 Databento Metadata APIDiscovery and cost-estimation endpoints for the historical catalog. List publishers, datasets, schemas, and...47.8 Databento Reference APIReference and non-price data that complements the market data feeds - a security master (instrument definit...47.8 Databento Symbology APIResolves symbols between Databento's symbology systems - raw symbol, instrument ID, parent, and continuous ...47.8 Eikon Data APIPython library providing access to financial data, news, and symbology from within the Refinitiv Eikon or L...45.8 Refinitiv Data Library for .NET.NET library providing uniform access to financial data and services available on the LSEG Data Platform. I...45.8 Refinitiv Data Library for PythonPython library providing uniform access to the breadth and depth of financial data and services available o...45.8 Refinitiv Data Platform LibrariesSuite of ease-of-use libraries and interfaces for Python, TypeScript and JavaScript providing access to str...45.8 Refinitiv Knowledge Direct API (RKD)API for wealth management that provides access to Refinitiv hosted content and capabilities. It integrates ...45.8 Infoway Financial Data MCP ServerOfficial Model Context Protocol server (PyPI infoway-mcp-server) exposing 17 tools over stdio for real-time...45.1 Infoway WebSocket Streaming APIPersistent WebSocket connection for real-time trades, order-book depth, candlesticks and multilingual news....45.1 FDC3 Context DataFDC3 Context Data defines a standard set of typed data structures used to carry information between financi...45.0 Kensho LLM-ready API (kfinance)LLM-ready API that connects LLMs, agents, and AI applications to S&P Global's trusted data through flexible...44.4 Atlar APIResource-oriented JSON REST API for treasury and payment operations. Paths follow /{namespace}/v#/{resource...44.0 QUODD Fundamentals & Estimates APICompany fundamentals, metrics, ratios, and analyst estimates on global securities for fundamental analysis....43.1 QUODD Historical Prices APIEnd-of-day and historical market data across 80-plus global exchanges - US equities and ETFs from 1994, glo...43.1 QUODD Reference Data & Security Master APIGlobal reference data and security master (Global Master) - intra-day global equity descriptive data, funds...43.1 ICE Consolidated Feed APIThe ICE Consolidated Feed API provides developers with access to ICE Data Services real-time and delayed ma...42.9 Concur Cards APIProvides an automated integration pathway for certified partner financial networks, issuing banks, and fin-...42.3 Concur Exchange Rate APIAllows users to create custom exchange rates for a company, supporting bulk uploads of exchange rate data f...42.3 FinancialData.Net MCP ServerHosted MCP server mapping the entire REST API documentation into callable MCP tools (e.g., getStockSymbols,...41.9 FinancialData.Net REST APIREST API for financial and market data covering equities, ETFs, crypto, forex, derivatives, fundamentals, f...41.9 Aiera MCP ServerAiera's hosted remote Model Context Protocol server, exposing the financial research corpus to LLMs and age...40.9 Verifone Reporting APIProgrammatically retrieve and download settlement, transaction, and financial reports from Verifone's cloud...40.8 Dealogic Primary Market Deals & Entities FeedFile-based bulk data feed of Dealogic's investment banking content: over 2 million transactions since 1995 ...39.9 ZenHR Inc Financial Data APIThe Financial Data API from ZenHR Inc — 3 operation(s) for financial data.39.8

Thin 27 Limited public surface area

CCH Tagetik Financial Data APIThe Financial Data API from CCH Tagetik — 1 operation(s) for financial data.39.0 Bloomberg Data APIProgrammatic access to Bloomberg's financial data including reference data, historical pricing, corporate a...38.7 iTick Market Data APIToken-authenticated REST and WebSocket API for real-time and historical financial market data across crypto...38.7 Rutter Accounting APIThe Rutter Accounting API provides a unified interface to read and write data to all major accounting platf...37.1 Rutter Payments APIThe Rutter Payments API provides a unified interface to read and write data to all major payment platforms ...37.1 Nasdaq Data Link Tables APIREST API for tables data (datatables) — row and column filtered access to hundreds of financial, economic, ...36.5 Bloomberg Data APIThe Bloomberg Open API (BLPAPI) provides programmatic access to Bloomberg's market data, reference data, hi...36.2 Xceptor Connector APIAPI and connector framework for integrating Xceptor with external systems and data sources. Provides pre-bu...35.3 Bloomberg Market Data APIProvides access to real-time and historical market data including stocks, bonds, commodities, and currencie...34.8 Mono Financial Data APIRead financial data from a linked account.34.8 Quiltt GraphQL Data APISingle GraphQL endpoint for reading an end-user's unified financial data - Profile, Connections, Accounts, ...34.7 Insurely Open Finance APICreate end users, capture consent, run data collections (including PSD2 banking data), and retrieve structu...33.9 TIAA Gateway APIThe TIAA Gateway is a cloud-based API layer enabling product portability and interoperability across retire...33.8 Bloomberg Data License APIBatch and per-security delivery of Bloomberg's reference, pricing, regulatory and alternative data for inte...32.9 SteadyAPIREST/JSON API providing stock market, options, crypto, real estate, sports, e-commerce, social media, trave...32.3 Nasdaq Data Link Tables APIREST API for retrieving Tables-style datasets, supporting filtering by column, query parameters, and large ...32.0 Band Standard DatasetThe Band Standard Dataset is an open standard for creating and accessing custom price feeds that deliver hi...31.9 Bloomberg Data License APIProvides programmatic access to Bloomberg's comprehensive financial data including pricing, reference data,...31.1 CoinNudge Data APIREST HTTP API returning JSON/CSV for crypto market datasets. Includes a free Research scope (no paid key re...30.7 GorilaCOREB2B REST API for investment-portfolio consolidation and analytics: create portfolios, ingest transactions, ...30.6 Quiver Quantitative APIThe Quiver Quantitative API provides REST access to alternative financial datasets including Congressional ...30.4 Reflexivity APIReflexivity's institutional REST API. Documented by the company as "JSON REST based services" whose request...30.3 Bloomberg Data License APIProvides access to Bloomberg's extensive financial data including real-time quotes, historical data, refere...30.1 NCUA 5300 Call Report DataQuarterly publicly available financial performance data for all federally insured credit unions based on th...29.4 Flanks APIOAuth2-secured wealth-data API covering the Connect flow (connectors, sessions, SCA resolution), Credential...28.6 Ion Group Dealogic Analytics SPAC APIDetailed profiling of Special Purpose Acquisition Companies (SPACs). Gain access to real-time content and a...27.0 Thinknum Data APIToken-authenticated REST API over data.thinknum.com for querying Thinknum's alternative datasets. Endpoints...27.0

Emerging 10 Early or largely undocumented

J-Quants APIThe J-Quants API (V2) is a data distribution service operated by Japan Exchange Group (JPX) that makes it e...25.4 Antero Resources SEC EDGAR FilingsAntero Resources Corporation (NYSE: AR) files annual reports (10-K), quarterly reports (10-Q), current repo...24.2 Bloomberg Open API (BLPAPI)Core Bloomberg API providing real-time and reference data access for financial applications across trading,...19.4 Bloomberg Query Language (BQL) APIExecute BQL queries programmatically via the Bloomberg API to retrieve custom computed financial data, filt...18.6 Norgate Data FundamentalsCompany fundamental lookups - named fundamental fields, financial summary, business summary, shares outstan...17.5 Valero Energy SEC EDGAR DataValero Energy Corporation SEC filings and financial data available through the SEC EDGAR system. Includes 1...14.8 Stifel Bank Finicity IntegrationStifel Bank account data accessible via Finicity (Mastercard) open banking aggregation API, enabling third-...12.8 Stifel Bank Plaid IntegrationStifel Trust Company account data accessible via Plaid open banking aggregation API, enabling third-party a...12.8 Wintrust Open Banking Data Access (Plaid, aggregator-mediated)Wintrust does not expose a direct consumer open-banking API. Third-party applications reach Wintrust / iBus...11.9 SM Energy Investor DataSM Energy Company (NYSE: SM) financial and operational data is accessible through investor relations resour...11.8

Minimal 2 Almost no public developer surface

Finverse Bank Data APIRetrieve real-time financial account information with user consent from over 40 Asian banks. Returns key fi...10.2 Iress QuantFeedQuantFeed is Iress's signature end-to-end ultra-low latency market data API. Built to deliver an unmatched ...7.9

Companies reaching this through an API (29)

These companies publish an API, specification or operation carrying “Financial Data” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Score breakdown

Frequency

64.1

log-scaled weighted occurrences

Breadth

3.6

spread across providers

Quality lift

44.7

mean composite of providers using it

Cohesion

17.6

strength of nearest seed neighbor

Where this tag sits

138 providers carry this tag directly, and 367 counting the 2 narrower tags below and the 1 beneath them — 229 more to reach.

Market Data 276 providers Fundamentals 15 providers

Where this tag comes from

Provider tag138

Api tag85

Openapi tag4

Openapi op tag19

Cohort brief

Auto-generated

The 137 providers in the APIs.io catalog tagged Financial Data, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

137

all scored

Mean Kin Score

36.6

+13.7 vs catalog 22.9

Mean Agent Readiness

25.4

+13.5 vs catalog 11.9

Spread

0–75.8

median 37.9 · σ 16.4

How the 137 split by band

Exemplar 4Strong 15Developing 41Thin 46Emerging 18Minimal 13

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	35.3	17.6	+17.7	137
Developer Ergonomics	39.4	23.2	+16.2	137
Access Clarity	39.9	26.5	+13.4	137
Operational Transparency	26	13.7	+12.3	137
Discoverability	66.2	58.1	+8.1	137
Contract Governance	11.7	6.3	+5.4	137

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	33%	14%	+19
MCP server (first-party)	33%	12%	+21
Agent Skills	0%	0%	0
OAuth scopes	21%	11%	+10
Security	99%	98%	+1
Arazzo workflows	2%	2%	0
Governance rules	31%	14%	+17

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

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Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
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.

All 92 tools →

Call it yourself

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This tag

curl "https://apis.io/api/v1/tags/financial-data"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/financial-data"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/financial-data/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Financial Data

Providers using this tag (138)

APIs with this tag (84)