established · -0.1 capabilitymarket actiondomain

Retrieval

Score 25.5 / 100 39 providers 24 APIs Search apis.io →

Providers using this tag (39)

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

Exemplar 1 Complete, well-documented, and agent-ready
NVIDIA NIMArtificial IntelligenceInferenceMicroservicesLLM11 APIs71.2
Strong 8 Solid coverage with minor gaps
S&P GlobalCapital IQCommodity InsightsCredit RatingsDocument Extraction9 APIs64.6OpenAIArtificial IntelligenceLarge Language ModelsT151 APIs64.2FactivaArtificial IntelligenceBusiness IntelligenceContent AggregationEnterprise Data11 APIs61.9Amazon BedrockArtificial IntelligenceFoundation ModelsGenerative AILLM8 APIs56.4Perplexity12 APIs56.3VectaraArtificial IntelligenceAgentsCorporaEmbeddings9 APIs56.2MixedbreadArtificial IntelligenceEmbeddingsRerankingSearch14 APIs55.6MixpanelAnalyticsData AnalysisEvent TrackingProduct Analytics22 APIs54.8
Developing 13 Usable, with meaningful gaps to close
AirweaveCompanyArtificial IntelligenceSearchRAG5 APIs53.7LlamaParseDocument ParsingOCRPDFLLM36 APIs52.2Microsoft CopilotAgentsAI AssistantArtificial IntelligenceChatbots7 APIs51.5ClarifeyeCompanyArtificial IntelligenceKnowledge-ManagementMCP13 APIs47.3ChromaArtificial IntelligenceAI-NativeApache 2.0Cloud8 APIs46.8Mem0MemoryAI AgentsAgent MemoryContext15 APIs45.0KenshoCompanyArtificial IntelligenceMachine-LearningFinancial Data4 APIs44.6PryonArtificial IntelligenceRetrieval Augmented GenerationEnterprise SearchKnowledge-Management24 APIs43.6ZeroEntropyCompanyEnterprise SaasArtificial IntelligenceSearch7 APIs43.4Google GeminiAgentic AIArtificial IntelligenceCode GenerationEmbeddings15 APIs42.4SeltzCompanyWeb SearchAI Infrastructure2 APIs42.3TopkCompanySearchVector SearchHybrid Search3 APIs41.7ExaSearchNeural SearchAI AgentsLLMs4 APIs40.5
Thin 14 Limited public surface area
kapa.aiArtificial IntelligenceAnswer EngineRAGDocumentation6 APIs38.6LlamaCloudArtificial IntelligenceDocument ParsingExtractionIndexing5 APIs37.7RagieArtificial IntelligenceRAGVector Search5 APIs37.5VectorizeArtificial IntelligenceRAGVectorizationEmbeddings8 APIs37.4MirielCompanyArtificial IntelligenceContext Engine7 APIs35.1Kong AI GatewayAI GatewayLLMMCPA2A21 APIs33.5Voyage AIEmbeddingsRerankersRAGSemantic Search9 APIs33.1ACM Digital LibraryAcademicBibliographic RecordsCitationsComputing3 APIs32.4PubMedBiomedicalLife ScienceResearchLiterature10 APIs31.7SuperlinkedVectorsEmbeddingsVector Search5 APIs31.1llamaindex20 APIs30.3JumioKYCIdentity VerificationBiometricsAML14 APIs28.3Augment CodeAI Coding AgentContext EngineIDE PluginCosmos5 APIs27.3KAITOArtificial IntelligenceGPUInferenceKubernetes5 APIs26.3
Emerging 2 Early or largely undocumented
Crossing MindsCompanyAi MlRecommendationsPersonalization1 API24.0ZepMemoryAI AgentsKnowledge GraphTemporal Graph1 API22.8
Minimal 1 Almost no public developer surface
INF TechCompanyArtificial IntelligenceMachine-LearningLarge Language Models7.2

APIs with this tag (24)

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 2 Complete, well-documented, and agent-ready
NVIDIA NIM Embeddings APIOpenAI-compatible embeddings endpoint (/v1/embeddings) backed by NVIDIA NeMo Retriever text embedding model...71.2NVIDIA NIM Reranking APINeMo Retriever cross-encoder reranking endpoint (/v1/ranking) for scoring candidate passages against a quer...71.2
Strong 7 Solid coverage with minor gaps
Kensho Grounding Agent (Alpha)Data retrieval service that translates natural-language queries into structured retrieval tasks across S&P ...64.6OpenAI Vector stores APIThe Vector stores API from OpenAI — 10 operation(s) for vector stores.64.2Factiva Content APISearch the Factiva archive and retrieve licensed articles by accession number, including binary renditions ...61.9Factiva Retrieval APIProvides retrieval functionality that returns licensed news articles as part of trusted data sources in a r...61.9Amazon Bedrock Agent Runtime APIThe Amazon Bedrock Agent Runtime API provides operations for invoking Bedrock agents and retrieving content...56.4Perplexity Embeddings APIThe Embeddings API generates high-quality text embeddings for semantic search and retrieval, offering both ...56.3Mixpanel Retrieval APISubmit and check data retrieval requests54.8
Developing 5 Usable, with meaningful gaps to close
LlamaParse Retrieval APIThe Retrieval API from LlamaParse — 4 operation(s) for retrieval.52.2Microsoft Copilot Retrieval APIRetrieve relevant text chunks from SharePoint, OneDrive, and Copilot connectors content for Retrieval Augme...51.5Kensho LLM-ready API (kfinance)LLM-ready API that connects LLMs, agents, and AI applications to S&P Global's trusted data through flexible...44.6Pryon Retrieval APIThe Retrieval API from Pryon — 4 operation(s) for retrieval.43.6Gemini Embedding APIGenerate text embedding vectors for semantic search, classification, clustering, and retrieval tasks using ...42.4
Thin 10 Limited public surface area
kapa.ai Retrieval APISemantic retrieval and keyword search.38.6LlamaCloud Retrieval APIQuery a managed index for relevant chunks.37.7AI RAG Injector PluginAutomates retrieval-augmented generation by injecting retrieved context into prompts at the gateway, so app...33.5Voyage AI Rerank APIReranking endpoint that scores a list of candidate documents against a query and returns relevance scores. ...33.1ACM Digital Library Content Retrieval APIIndividual publications, conference papers, and journal articles in the ACM Digital Library are accessible ...32.4PubMed Retrieval APIOperations for retrieving records from Entrez databases31.7llamaindex Retrieval APIQuery and retrieve content from indexed pipelines.30.3Jumio Retrieval APIRetrieves stored transaction details, scanned documents, similarity scores, and decision audit history for ...28.3Augment Context EngineProprietary indexing and retrieval engine that gives Augment's agents codebase-aware context — intelligent ...27.3KAITO Retrieval APIRetrieve relevant nodes from a RAG index.26.3

Score breakdown

Frequency
46.9
log-scaled weighted occurrences
Breadth
1.1
spread across providers
Quality lift
51.1
mean composite of providers using it
Cohesion
21.6
strength of nearest seed neighbor

Related tags

RAG 21 co-occurrences Embeddings 12 co-occurrences Vector Search 7 co-occurrences Semantic Search 5 co-occurrences Multi-Modal 5 co-occurrences LLM 13 co-occurrences Pipelines 6 co-occurrences Chat 7 co-occurrences

Where this tag comes from

Api tag24
Provider tag19
Openapi tag9
Openapi op tag17

Cohort brief

Auto-generated

The 39 providers in the APIs.io catalog tagged Retrieval, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
39
all scored
Mean Kin Score
42.3
+21.6 vs catalog 20.7
Mean Agent Readiness
23.9
+14.2 vs catalog 9.7
Spread
7.2–71.2
median 42.3 · σ 13.3
How the 39 split by band
Exemplar 1Strong 8Developing 13Thin 14Emerging 2Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 48.8 17.5 +31.3 39
Developer Ergonomics 41.2 17.9 +23.3 39
Access Clarity 43.3 22.3 +21 39
Operational Transparency 30.9 11.3 +19.6 39
Discoverability 74.3 60.4 +13.9 39
Contract Governance 12.5 6.4 +6.1 39

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) 33% 16% +17
MCP server (first-party) 15% 7% +8
Agent Skills 0% 0% 0
OAuth scopes 15% 9% +6
Security 97% 88% +9
Arazzo workflows 8% 2% +6
Governance rules 38% 13% +25

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 NVIDIA NIM 71.2
  2. 2 S&P Global 64.6
  3. 3 OpenAI 64.2
  4. 4 Factiva 61.9
  5. 5 Amazon Bedrock 56.4
  6. 6 Perplexity 56.3
  7. 7 Vectara 56.2
  8. 8 Mixedbread 55.6
  9. 9 Mixpanel 54.8
  10. 10 Airweave 53.7
Top by Agent Readiness
  1. 1 S&P Global 63.7
  2. 2 Clarifeye 53.8
  3. 3 Kensho 53.2
  4. 4 Airweave 44
  5. 5 Factiva 43.3
  6. 6 OpenAI 37.7
  7. 7 Google Gemini 30.2
  8. 8 Microsoft Copilot 29.9
  9. 9 Perplexity 29.1
  10. 10 Pryon 28.9
All 39 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 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.

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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 
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All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/retrieval"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/retrieval/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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