Bing Search API

Microsoft Bing's web, news, image, and video search API via Azure Cognitive Services for agent-powered search with structured results and SafeSearch filtering.

Evaluated Mar 06, 2026 (0d ago) vv7
Homepage ↗ Developer Tools bing microsoft web-search search-api azure news
⚙ Agent Friendliness
61
/ 100
Can an agent use this?
🔒 Security
82
/ 100
Is it safe for agents?
⚡ Reliability
85
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
--
Documentation
82
Error Messages
80
Auth Simplicity
83
Rate Limits
82

🔒 Security

TLS Enforcement
100
Auth Strength
78
Scope Granularity
68
Dep. Hygiene
83
Secret Handling
82

Single API key with full access — no scope granularity. Azure subscription provides billing isolation. No user PII in search queries stored per usage policy.

⚡ Reliability

Uptime/SLA
88
Version Stability
85
Breaking Changes
83
Error Recovery
85
AF Security Reliability

Best When

You're in the Microsoft/Azure ecosystem and want to add web search capability to agents with enterprise compliance via Azure subscription.

Avoid When

You need AI-native search with citation quality or are outside Azure ecosystem — Brave Search API, Serper, or Exa offer better agent-oriented search.

Use Cases

  • • Web search for AI agents needing current information beyond training data cutoff
  • • News search and monitoring for agents tracking specific topics or companies
  • • Image search integration for agents that need to find and verify visual content
  • • Entity search for structured business and person data with Bing Entity API
  • • Grounding LLM responses with real-time search results via Bing Search in agent workflows

Not For

  • • AI-native search with semantic ranking (use Perplexity, Exa, or Brave Search for better agent integration)
  • • Very high search volumes — Bing is priced per 1000 calls which adds up at scale
  • • Teams preferring Google results — Bing index may not match Google result quality for all queries

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
Yes
Webhooks
No

Authentication

Methods: api_key
OAuth: No Scopes: No

Ocp-Apim-Subscription-Key header with Azure Cognitive Services API key. Single key grants access to all Bing Search APIs. No scope granularity.

Pricing

Model: usage_based
Free tier: Yes
Requires CC: Yes

Requires Azure account. F0 tier has 3 calls/second, 1000/month. S1 is $7/1000 calls.

Agent Metadata

Pagination
offset
Idempotent
Full
Retry Guidance
Documented

Known Gotchas

  • ⚠ Results freshness varies — recent events may lag 30-60 minutes before indexing; use freshness parameter for time-sensitive queries
  • ⚠ Market parameter (mkt) affects result language and region — agents should set mkt=en-US or appropriate locale explicitly
  • ⚠ SafeSearch defaults to Moderate — override to Off for agents needing comprehensive results
  • ⚠ Web search result count is max 50 per request — paginate with offset parameter for broader coverage
  • ⚠ Bing returning relevant_headers sometimes needed for market detection — don't assume query market from request

Alternatives

brave-search-api serper-api exa-api google-custom-search-api

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Bing Search API.

$99
API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.

5215
Packages Evaluated
26151
Need Evaluation
173
Need Re-evaluation
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