# Exa

**Canonical:** https://apis.io/providers/exa/  
**Website:** https://exa.ai  
**APIs profiled:** 4

Exa is a neural web search API designed for AI agents and applications. It combines a purpose-built web index with embedding-based retrieval to deliver highly relevant results across categories such as full web, news, companies, research, people, and financials. Exa exposes search, contents, find similar, and answer endpoints, with multiple search modes ranging from fast sub-second responses to deeper multi-step research. It also returns token-efficient highlights and summaries that reduce LLM input costs and supports structured output extraction across more than 70 million indexed companies. Exa is SOC 2 Type II certified, offers Zero Data Retention, and ships Python and JavaScript SDKs.

## Kin Score — 40.9 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 40.9).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 55.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 23.7 |
| Developer Ergonomics | 22.6 |
| Commercial Clarity | 60.5 |
| Access Clarity | 60.5 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (4)

- **Exa Search API** — The Exa Search API provides neural web search, contents retrieval, find similar, and grounded answers for AI agents. Multiple speed modes range from fast 250ms searches to deep ...
- **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 Search API** — The Search API from Exa — 2 operation(s) for search.

## Agentic access (1)

- **Exa Agentic Access** — 4 operations · 4 acting

## Security (3)

- **Exa Authentication** — apiKey/http · 2 schemes
- **Exa Domain Security** — TLSv1.3 · HSTS · DMARC
- **Exa Vulnerability Disclosure** — disclosure policy published

## Plans (1)

- **Exa Plans Pricing**

## Tags

Search, Neural Search, AI Agents, LLMs, Web Index, Retrieval, Answers, Contents, Find Similar, Research, SOC 2, MCP

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/exa/). Scores are computed from the provider's own public artifacts under a published rubric.