emerging · 0.2 marketcapability domainschemaresource

Index

Score 22.1 / 100 8 providers +54 via APIs 61 APIs Search apis.io →
Variants seen in the corpus: IndexesIndex

Providers using this tag (8)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Developing 4 Usable, with meaningful gaps to close
Emerging 3 Early or largely undocumented
Minimal 1 Almost no public developer surface

APIs with this tag (61)

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 4 Complete, well-documented, and agent-ready
Strong 7 Solid coverage with minor gaps
Developing 23 Usable, with meaningful gaps to close
Zero Hash Index APIObtain the index price on an instrument54.2Marketstack Indexes APIThe Indexes API from Marketstack — 2 operation(s) for indexes.53.4Oracle Database Indexes APICollection index management51.7Dashbot Index APIThe Index API from Dashbot — 1 operation(s) for index.50.4CryptoCompare Index APICoinDesk Indices (CADLI, CCIX, CCIXBE) latest tick, historical values, and composition.49.3Amazon Resource Explorer Index APIThe Index API from Amazon Resource Explorer — 4 operation(s) for index.48.0Azure AI Search Indexes APIThe Indexes API from Azure AI Search — 2 operation(s) for indexes.47.5AgentSearch HTTP APIPublic, no-auth HTTP API for AgentSearch, Luther Systems' daily-scored index of AI agents and MCP servers, ...46.9ArangoDB Indexes APIImprove the performance of queries46.3Macrometa Index APIThe Index API from Macrometa — 6 operation(s) for index.45.8Macrometa Indexes APIThe Indexes API from Macrometa — 9 operation(s) for indexes.45.8Aleph Alpha Index APIManagement of search indexes45.3Morningstar Market Data Web Services APIOn-demand access to Morningstar's financial market data over HTTP in XML and JSON - real-time, delayed, and...44.5Meilisearch Indexes APIThe Indexes API from Meilisearch — 4 operation(s) for indexes.44.0Marqo Indexes APICreate, list, inspect, and delete tensor / lexical indexes.43.0Elasticsearch Index APIThe Index API from Elasticsearch — 1 operation(s) for index.42.7Quickwit Indexes APICreate, update, retrieve, and manage search indexes42.1EUR/USD Cross Currency Basis Index APIJSON-over-REST API delivering the CME-administered EUR/USD Cross Currency Basis Index with real-time update...42.0University of Chicago Gen3 indexd — index APIAssociate a file (object) with a unique id, and store some basic metadata.41.8Milvus Indexes APIThe Indexes API from Milvus — 4 operation(s) for indexes.40.0Milvus REST API v2Milvus v2 REST API covers collections, partitions, vectors, search, query, indexes, and role/RBAC managemen...40.0Scanner Indexes APIList and retrieve searchable indexes for a tenant.39.8crates.io Index APIPer-crate index metadata files served over HTTP39.4
Thin 22 Limited public surface area
Apache Cassandra Indexes APIThe Indexes API from Apache Cassandra — 2 operation(s) for indexes.38.0MerQube Index APIAPIs for MerQube Indices38.0Hex.pm Index APIAPI index and discovery.37.4TwelveLabs Indexes APICreate and manage video indexes.37.3Parseflow Index APIThe Index API from Parseflow — 1 operation(s) for index.36.8Manticore Search Index APIOperations regarding adding, updating or deleting documents35.44chan Indexes APIPer-board, per-page index document of threads (each with a posts array including the OP and a small number ...35.3PRIMIS Index APIIndex API35.1Qdrant Indexes APIIndexes for payloads associated with points.34.9Sigstore Index APIThe index API from Sigstore — 1 operation(s) for index.34.5Orama Indexes APIManage Orama Cloud index schema and deployments.34.2Pact Index APIThe Index API from Pact — 1 operation(s) for index.33.2Geofabrik Index APIMachine-readable index of all available extracts33.0Searchcraft Indexes APIThe Indexes API from Searchcraft — 4 operation(s) for indexes.32.7Disney API Index APIService discovery endpoint that enumerates available REST routes.31.9Bitwise Indexes APIBitwise crypto index metadata, history, and constituents.31.3llamaindex Indexes APICreate and manage indexes that serve as automated document ingestion pipelines with retrieval capabilities.30.4Cacheflow Index APIThe Index API from Cacheflow — 1 operation(s) for index.29.3conda-forge Channel Repodata APIStatic JSON index files served over HTTPS from conda.anaconda.org for each supported platform subdirectory ...29.21KOMMA5° Index APIThe index API from 1KOMMA5° — 1 operation(s) for index.29.0The Index Indexes APIApproved indie web and small web index sites.28.1Scramble APIPet, sign for, feed and read the state of Scramble, the recursive cat who lives with Wib&Wob. Ten operation...26.3
Emerging 5 Early or largely undocumented

Companies reaching this through an API (54)

These companies publish an API, specification or operation carrying “Index” 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.

1KOMMA5° 4chan Aleph Alpha Amazon Kendra Amazon Resource Explorer Apache Cassandra ArangoDB Azure AI Search Bitwise Bitwise Investments Bullish Cacheflow Cloudflare CME Group CoinAPI conda-forge crates.io Dashbot Datadog Disney API Elasticsearch Geofabrik HERE Hex.pm Llamaindex LlamaParse Luther Systems Macrometa Manticore Search Marketstack Marqo Medusa Meilisearch MerQube Microsoft Azure Milvus Nasuni Oracle Database Orama Pact Parseflow PRIMIS Qdrant Quickwit Scanner Searchcraft Sigstore Splunk The Index ThetaData
Show all 54 companies ↓

Score breakdown

Frequency
58.5
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
37.2
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

Vector Search 7 co-occurrences NoSQL 6 co-occurrences Full-Text Search 5 co-occurrences ETFs 5 co-occurrences Snapshots 6 co-occurrences Query 12 co-occurrences

Where this tag comes from

Api tag59
Provider tag8
Openapi tag44
Openapi op tag161

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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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As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/index"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/index/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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