established · -1.8 marketcapability domainresource

Vector Search

Score 24.3 / 100 59 providers +16 via APIs 29 APIs Search apis.io →
Business capabilities this tag reaches
Information Technology Management 1
Variants seen in the corpus: Vector DatabaseVector DatabasesVector Search

Providers using this tag (59)

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

Exemplar 4 Complete, well-documented, and agent-ready
Elastic StackAnalyticsLoggingMonitoringObservability11 APIs80.8TimescaleCompanyDatabasePostgreSQLTime Series2 APIs70.6Azure Cosmos DBDatabaseNoSQLDocument Database2 APIs69.4PingCAPDistributed SQLDatabasetidbHTAP22 APIs68.4
Strong 7 Solid coverage with minor gaps
PineconeArtificial IntelligenceEmbeddingsRAG6 APIs60.1BonsaiCompanySearchElasticsearchOpenSearch4 APIs54.3CouchbaseAnalyticsApp ServicesBackupCapella12 APIs65.1ChromaArtificial IntelligenceAI-nativeApache 2.0Cloud1 API59.2TileDBCompanyDatabaseMultimodal DataLife Sciences4 APIs58.8DatabricksCleanroomDatabricksArtificial IntelligenceAnalytics1 API58.7AirweaveCompanyArtificial IntelligenceSearchRAG1 API57.7
Developing 21 Usable, with meaningful gaps to close
VespaArtificial IntelligenceSearchBig Data3 APIs51.8vectorpanda-comCompanyArtificial IntelligenceSemantic Search1 API51.3WeaviateArtificial IntelligenceMachine LearningSemantic Search1 API51.0ydb-qdrant-techCompanyDatabaseYDB3 APIs48.8TopkCompanySearchHybrid Search3 APIs48.7MarqoMulti-ModalSemantic SearchEmbeddings1 API41.2MilvusArtificial IntelligenceEmbeddingsOpen Source1 API40.0PixeltableCompanyAi DataMultimodal AIAI Data Infrastructure3 APIs53.5VectaraArtificial IntelligenceAgentsCorporaEmbeddings1 API53.4DataStaxCompanyEnterpriseDatabase1 API53.2CogneeArtificial IntelligenceMemoryKnowledge GraphRAG1 API52.5ArangoDBCompanyDatabaseGraph DatabaseMulti-Model Database1 API52.3MixedbreadArtificial IntelligenceEmbeddingsRerankingSearch12 APIs49.7KineticaDatabaseAnalyticsgpu-accelerationReal-Time Analytics3 APIs48.8RAGFlowCompanyArtificial IntelligenceRAGSearch1 API48.1turbopufferFull-Text SearchHybrid SearchBM251 API48.0Aleph AlphaCompanyArtificial IntelligenceMachine LearningLLM6 APIs47.8Crate IoCompanyDatabaseSQLDistributed Database2 APIs47.8ScyllaDBDatabaseNoSQLCassandra CompatibleDynamoDB Compatible1 API45.2LanceDBMulti-ModalLance FormatLakehouse1 API41.0TrieveSearchRAGHybrid Search1 API39.5
Thin 19 Limited public surface area
UpstashServerlessRedisKafkaMessaging1 API35.2VectorizeArtificial IntelligenceRAGVectorizationEmbeddings1 API32.4ZillizArtificial IntelligenceCloudMilvus1 API31.7Manticore SearchSearchFull-Text SearchElasticsearch Compatible2 APIs27.5PostgresMLCompanyArtificial IntelligenceMachine Learning27.2MyScaleSQLClickHouseFull-Text Search1 API26.7OndemandCompanyArtificial IntelligenceMachine LearningRAG1 API38.8TypesenseFull-Text SearchOpen SourceSearch EnginesTypo Tolerance2 APIs38.6Gel DataCompanyOpen SourceDatabasePostgreSQL38.5RagieArtificial IntelligenceRAGRetrieval1 API37.5MongoDB AtlasDatabaseDocument DatabaseNoSQLMongoDB1 API37.2QdrantArtificial IntelligenceDatabase1 API36.6CohereArtificial IntelligenceNatural Language ProcessingEmbeddings1 API35.2SurrealDBDatabaseMulti-ModelGraph DatabaseDocument Database2 APIs34.0LucidworksSearchArtificial IntelligenceEnterprise Search7 APIs33.2LatticaCompanyPrivacyFully Homomorphic EncryptionEncryption1 API30.0SuperlinkedVectorsEmbeddingsRetrieval1 API27.3Apache LuceneFull-Text SearchIndexingJavaSearch1 API26.7OramaSearchRAGOpen Source1 API26.6
Emerging 8 Early or largely undocumented
ObjectBoxCompanyDatabaseEmbedded DatabaseMobile Database17.7MirielCompanyArtificial IntelligenceContext EngineRetrieval7 APIs26.0AerospikeDatabaseNoSQLReal-TimeKey-Value Store1 API25.2Voyage AIEmbeddingsRerankersRAGSemantic Search1 API24.2TranswarpCompanyBig DataDatabase1 API21.7SuperduperAI FrameworkRAGLLM6 APIs16.4pgvectorArtificial IntelligenceDatabaseOpen Source16.0SequoiaDBCompanyEnterpriseDatabaseNoSQL11.6

APIs with this tag (29)

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 3 Complete, well-documented, and agent-ready
Vector Search Endpoints APIManage vector search endpoints for hosting vector search indexes.71.6Vector Search Indexes APIManage vector search indexes for similarity search and retrieval-augmented generation workloads.71.6TiDB MCP ServerOfficial Model Context Protocol server maintained by PingCAP that exposes a TiDB or TiDB Cloud database to ...68.4
Strong 9 Solid coverage with minor gaps
Collate Vector Search APIAPIs for vector-based semantic search.66.4Seekr Vector database APIThe Vector database API from Seekr — 11 operation(s) for vector database.65.1BuiltWith Vector Search APIText-based technology searches using vector embeddings for semantic similarity matching.63.0DataRobot Vector Databases APIThe following endpoints outline how to manage vector databases.60.7Chroma JavaScript ClientThe Chroma JavaScript and TypeScript Client is a first-party SDK for interacting with Chroma from JavaScrip...59.2Chroma Python ClientThe Chroma Python Client is a first-party SDK for interacting with both self-hosted Chroma servers and Chro...59.2Databricks Vector Search Endpoints APIThe Databricks Vector Search Endpoints API allows you to create, list, get, and delete vector search endpoi...58.7Databricks Vector Search Indexes APIThe Databricks Vector Search Indexes API allows you to create, manage, query, and delete vector search inde...58.7Sanity Embeddings Index APIThe Sanity Embeddings Index API enables creating and managing vector embedding indexes for Content Lake doc...55.9
Developing 7 Usable, with meaningful gaps to close
Kinetica Database REST APIPOST-only JSON REST API exposed by every Kinetica deployment on port 9191. Endpoints cover SQL execution (/...48.8Kinetica Toolbelt MCP ServerHosted Model Context Protocol server that gives any MCP-speaking agent a single endpoint onto a Kinetica da...48.8Oracle APEX Generative AI APIAPIs for integrating generative AI capabilities into APEX applications, including chat, text generation, an...48.5Mistral Embeddings APIGenerate vector embeddings for text and code for retrieval, clustering, classification, and semantic search.47.3Digital Ocean Vector Databases APIVector DB provides APIs for provisioning and managing vector database instances on DigitalOcean. By sending...46.4ScyllaDB Vector Search APIThe Vector Search API from ScyllaDB — 1 operation(s) for vector search.45.2OpenMetadata Vector Search APIAPIs for vector-based semantic search.42.6
Thin 7 Limited public surface area
Nhost AI APIAI toolkit providing GraphQL-based assistant management, auto-embeddings, session handling, and file stores...38.0OpenSearch Search and Indexing REST APIThe core OpenSearch REST API for indexing documents, performing search queries (full text, vector, hybrid),...36.6Cohere Embed APIThe Cohere Embed API generates vector embeddings from text and images, enabling semantic search, clustering...35.2Upstash Developer APIManagement API for creating and administering Upstash Redis, Kafka, and Vector databases, teams, and accoun...35.2Nomic Atlas APIREST API for the Nomic Atlas platform. Exposes endpoints for creating and managing datasets, building 2D se...33.5OpenLLMetry Vector Database InstrumentationsInstrumentations for vector databases used in retrieval-augmented generation pipelines — Chroma, Pinecone, ...28.8Apache LuceneLucene provides a comprehensive Java API for full-text indexing, searching, faceting, hit highlighting, spa...26.7
Emerging 3 Early or largely undocumented
KAITO RAGEngine APIRAGEngine exposes endpoints for managing retrieval-augmented generation services with embedded vector datab...22.5MilvusMilvus is an open source vector database built for scalable similarity search, supporting embedding-based A...21.7Transwarp Hippo RESTful APIREST interface of the Transwarp Hippo distributed vector database. The published reference covers database ...21.7

Companies reaching this through an API (16)

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

Azure Databricks BuiltWith Collate DataRobot Digital Ocean KAITO LF AI and Data Mistral AI Nhost Nomic AI OpenLLMetry OpenMetadata OpenSearch Oracle APEX Sanity Seekr

Score breakdown

Frequency
49.9
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
42.3
mean composite of providers using it
Cohesion
21.4
strength of nearest seed neighbor

Where this tag sits

Database broader Search broader

Related tags

RAG 31 co-occurrences Semantic Search 13 co-occurrences Embeddings 25 co-occurrences Retrieval 11 co-occurrences Database 31 co-occurrences Full-Text Search 7 co-occurrences Vectors 7 co-occurrences Cluster 16 co-occurrences

Where this tag comes from

Provider tag59
Api tag29
Openapi tag4
Openapi op tag18

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

MarketShare of the market's providers
Retrieval, Vector and RAG24%
Search API (Elasticsearch / OpenSearch shape)20%

Cohort brief

Auto-generated

The 57 providers in the APIs.io catalog tagged Vector Search, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
57
of 59 in the catalog
Mean Kin Score
42
+17.9 vs catalog 24.1
Mean Agent Readiness
23.8
+9.7 vs catalog 14.1
Spread
11.6–80.8
median 40 · σ 15.2
How the 57 split by band
Exemplar 4Strong 7Developing 19Thin 19Emerging 8Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 47.5 24.5 +23 57
Contract Quality 38.3 18.6 +19.7 57
Operational Transparency 29.4 13.2 +16.2 57
Access Clarity 42.9 30 +12.9 57
Discoverability 68.5 59.1 +9.4 57
Contract Governance 16 9.7 +6.3 57

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
ArtifactThis cohortCatalogDifference
MCP server (any) 40% 18% +22
MCP server (first-party) 39% 16% +23
Agent Skills 0% 0% 0
OAuth scopes 12% 13% -1
Security 98% 99% -1
Arazzo workflows 4% 1% +3
Governance rules 74% 36% +38

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
  1. 1 Elastic Stack 80.8
  2. 2 Timescale 70.6
  3. 3 Azure Cosmos DB 69.4
  4. 4 PingCAP 68.4
  5. 5 Couchbase 65.1
  6. 6 Pinecone 60.1
  7. 7 Chroma 59.2
  8. 8 TileDB 58.8
  9. 9 Databricks 58.7
  10. 10 Airweave 57.7
Top by Agent Readiness
  1. 1 ydb-qdrant-tech 62.2
  2. 2 Airweave 60.6
  3. 3 Databricks 58.9
  4. 4 Mixedbread 51.2
  5. 5 Typesense 47.9
  6. 6 Pinecone 46.9
  7. 7 Elastic Stack 43.9
  8. 8 Upstash 41.8
  9. 9 Cohere 41.4
  10. 10 PingCAP 41.3
All 59 members of this roster resolve to a provider in the catalog; 57 carry a score (97%). The figures above describe the scored members only.
Coverage caveat. 38 of 57 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 14 November 2026, across 41591 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

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

MCP server

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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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