Exa
Exa is a web search API and AI research platform built specifically for LLMs and agents — semantic and keyword search across the open web with token-efficient highlights, structured outputs, sub-200ms latency tiers, and verticals for code, companies, news, people, research, and financials. The platform pairs the core Search, Contents, and Answer endpoints with Research (asynchronous deep research), Agent (managed multi-step agents at four effort modes), Monitors (scheduled searches with webhooks), and Websets (curated, enrichable result collections). Customers include Cognition (Devin), HubSpot, Monday, Databricks, AWS, and Cursor; Exa raised a $250M Series C to build the search engine for AIs. Open SDKs in Python and JavaScript, an MCP server, Google Sheets and n8n integrations, and a free tier of 1,000 requests/month round out the surface.
Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.
API Evangelist profiles Exa the way a machine reads it — 76 machine-readable artifacts across 19 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Exa scores 74.9/100 (exemplar), with a separate agent-readiness read of 78/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
How we profile Exa
Each block below is one kind of artifact we hold for Exa. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 19
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Exa Agent API
The Agent API from Exa — 4 operation(s) for agent.
Exa Answer API
The Answer API from Exa — 1 operation(s) for answer.
Exa Contents API
The Contents API from Exa — 1 operation(s) for contents.
Exa Enrichments API
The Enrichments API from Exa — 3 operation(s) for enrichments.
Exa Events API
The Events API from Exa — 2 operation(s) for events.
Exa Imports API
The Imports API from Exa — 2 operation(s) for imports.
Exa Items API
The Items API from Exa — 2 operation(s) for items.
Exa Monitors API
The Monitors API from Exa — 6 operation(s) for monitors.
Exa Monitors Runs API
The Monitors Runs API from Exa — 2 operation(s) for monitors runs.
Exa Research API
The Research API from Exa — 2 operation(s) for research.
Exa Runs API
The Runs API from Exa — 2 operation(s) for runs.
Exa Search API
The Search API from Exa — 1 operation(s) for search.
Exa Searches API
The Searches API from Exa — 3 operation(s) for searches.
Exa Team Management API
The Team Management API from Exa — 3 operation(s) for team management.
Exa Teams API
The Teams API from Exa — 1 operation(s) for teams.
Exa Webhooks API
The Webhooks API from Exa — 2 operation(s) for webhooks.
Exa Webhooks Attempts API
The Webhooks Attempts API from Exa — 1 operation(s) for webhooks attempts.
Exa Websets API
The Websets API from Exa — 3 operation(s) for websets.
Exa Websets Preview API
The Websets Preview API from Exa — 1 operation(s) for websets preview.
Scroll within the panel for all 19 ·
Postman Collections 7
A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.
Ready-to-run Postman collections for exercising this provider's APIs.
Exa Agent API
POSTMANExa Monitors API
POSTMANExa Research API
POSTMANExa Search API
POSTMANExa Team API
POSTMANTeam Management API
POSTMANExa Websets API
POSTMANScroll within the panel for all 7 ·
Open Collections 7
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Exa Agent API
OPEN COLLECTIONExa Monitors API
OPEN COLLECTIONExa Research API
OPEN COLLECTIONExa Search API
OPEN COLLECTIONExa Team API
OPEN COLLECTIONTeam Management API
OPEN COLLECTIONExa Websets API
OPEN COLLECTIONScroll within the panel for all 7 ·
Arazzo Workflows 11
Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.
Multi-step API workflows described with the Arazzo specification.
Exa Answer with Deep Sources
Get a cited answer to a question, then deep-fetch the top citation.
ARAZZOExa Create and Poll Research
Kick off an Exa research task and poll until it completes, then read output.
ARAZZOExa Create Webset and List Items
Create a Webset from a search, poll until it settles, then list its items.
ARAZZOExa Enrich Webset and Poll
Build a Webset, then add an enrichment column and poll until it completes.
ARAZZOExa Find Similar and Fetch Contents
Find pages similar to a seed result, then fetch their full contents.
ARAZZOExa Preview then Create Webset
Preview how a query decomposes, then commit it to a real Webset.
ARAZZOExa Scout then Research
Scout sources with a quick search, then launch and poll a deep research task.
ARAZZOExa Search and Fetch Contents
Run an Exa neural search and pull full page contents for the top result.
ARAZZOExa Webset Item Deep Contents
Build a Webset, list its items, and deep-fetch the top item's contents.
ARAZZOScroll within the panel for all 11 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
exa-ai-mcp.yml
MCP SERVERPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Exa Ai Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Exa Ai Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Exa Ai Finops
FINOPSFeatures 19
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Scroll within the panel for all 19 ·
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Exa Ai Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Exa API Rules
SPECTRALJSON Schema 2
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Exa Search Result
JSON SCHEMAExa Webset Item
JSON SCHEMASecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Exa — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 4
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 16
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 16 ·
Build 18
SDKs, sample code, and the tooling you integrate with
Scroll within the panel for all 18 ·
Access & Security 5
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 7
Properties that don't map to a standard resource type
Scroll within the panel for all 7 ·
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