Linkup

"Production-grade Web Search API for AI" [1]

www.linkup.so · By Linkup · Agent JSON · Suggest an edit · Last verified 2026-06-14 · Source confidence: high

Linkup is a production-grade web search API designed for AI applications, covering use cases from RAG and LLM grounding to deep research, legal AI, and sales enrichment. Pricing is usage-based starting at $0.001 per API call, with a $20 monthly free credit and self-serve signup, and an enterprise plan is available for higher rate limits and SLA coverage. The API ships SDKs for Python, JavaScript/TypeScript, and an MCP Server, with EU and US data residency options, SOC 2 Type 2 certification, and GDPR compliance. Notable customers include McKinsey, EY, Cohere, and GitGuardian.

Best for / Avoid if

Best for: Prototypes and side projects - free to start, no sales call; Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt)

Scores

  • 65 / 100
    Agent friendliness
  • 100 / 100
    Pricing transparency
  • 85 / 100
    Setup speed
  • 45 / 100
    Docs quality
  • 100 / 100
    Procurement ease
  • 40 / 100
    Trust readiness

Scores are computed deterministically from this profile's published, sourced fields (pricing, compliance, capabilities, docs and developer-surface signals) - not from reviews or paid placement. Each axis is 0-100; an unknown signal scores 0 for that axis. Procurement ease is the inverse of buying friction (higher = easier to adopt).

Pricing & procurement

Pricing model
Usage-based
Published pricing
Yes
Free tier
Yes
Free tier details
Recurring monthly $20 credit top-up: 'When you first sign up, your account is automatically credited with $20. We will top up your credits back to $20 each month.' No credit card required.
Self-serve signup
Yes [2]
Requires sales call
No
Enterprise plan
Yes [3]
Published prices
PlanItemPerAmountSource
Pay-as-you-goSearch (fast or standard depth, searchResults output)request$0.005source
Pay-as-you-goSearch (fast or standard depth, sourcedAnswer or structured output)request$0.006source
Pay-as-you-goSearch (deep depth, searchResults output)request$0.05source
Pay-as-you-goSearch (deep depth, sourcedAnswer or structured output)request$0.055source
Pay-as-you-goFetch (URL content extraction, without JavaScript rendering)request$0.001source
Pay-as-you-goFetch (URL content extraction, with JavaScript rendering)request$0.005source
Pay-as-you-goResearch (reasoningDepth S — light coverage)request$0.25source
Pay-as-you-goResearch (reasoningDepth M — balanced)request$0.5source
Pay-as-you-goResearch (reasoningDepth L — thorough, default)request$1.5source
Pay-as-you-goResearch (reasoningDepth XL — exhaustive)request$2.5source
EnterpriseCustom pricing (contact sales) — includes personalized index, dedicated refresh rates, private environment, IP whitelisting, SLA, dedicated support - source

Capabilities

  • Full content for RAG
  • Agent-ready / MCP
  • Zero data retention
Supported actions
web_search, fetch_url, deep_research, batch_tasks, get_research_status [4]
Regions
global, EU data residency available, US region available [5]
Input types
natural language query, URL, structured JSON schema for output, domain filters, date range filters
Output types
JSON, sourced answer with citations, ranked URLs with snippets, structured JSON (custom schema), LLM-ready markdown (fetch)
Webhooks
No
Sandbox / test mode
No [6]
SDK languages
Python, JavaScript/TypeScript, MCP Server (Node) [7]
MCP server
Yes [8]

Trust & compliance

SOC 2
SOC 2 Type II [9]
HIPAA
No [10]
GDPR
Yes [11]
ISO 27001
Unknown
PCI DSS
Unknown
Published SLA
No [12]
Rate limits
10 queries per second per organization for Search and Fetch endpoints. x402 requests are rate-limited per IP. Higher limits available via custom plans. [13]
Known restrictions
Zero Data Retention available on every tier (API queries not stored by default), Research endpoint currently in beta with potential parameter changes, API key and x402 payment signer cannot be used together, SLA is an Enterprise-only feature; standard plans do not have a published SLA

Developer surface

Docs rendering: static · llms.txt present

Integration

API style
rest
Base URL
https://api.linkup.so/v1
Version
1.0
Versioning
url
Stability
ga
Auth methods
api_key
Idempotency keys
No
Error format
vendor-specific
Rate limit
10 / second

SDKs

  • Python linkup-sdk · repo
  • JavaScript/TypeScript linkup-sdk · repo
  • MCP Server (Node) linkup-mcp-server · repo

Adoption & maturity

Launched
2024-01-01
Notable customers
McKinsey & Company, Cohere, LEGORA, SNCF, EY, Artisan, GitGuardian, Blackfin, Die Bundesregierung, Polymarket

Other Web Search APIs

  • Firecrawl

    The API to search, scrape, and interact with the web at scale.

    Subscription · free tier · public pricing · self-serve

  • Exa

    "Web search, built for AI agents. One API for search, crawling, and research agents."

    Usage · free tier · public pricing · self-serve

  • Brave Search API

    "The Brave Search API provides developers with access to Brave Search results and enables building AI products, chatbots, coding assistants, and AI-search engines with real-time web data."

    Usage · public pricing · self-serve

  • Tavily Search API

    "Real-time search, extraction, research, and web crawling through a single, secure API."

    Hybrid · free tier · public pricing · self-serve

  • Jina AI Search Foundation (DeepSearch / Reader)

    "Your Search Foundation, Supercharged."

    Usage · public pricing · self-serve

  • Parallel Search API

    "The highest accuracy web search for your AI"

    Usage · public pricing · self-serve

Linkup alternatives · Linkup vs Firecrawl · All Web Search APIs APIs

References

Each field above carries a numbered source - hover for a preview, click to jump here.

  1. Description: linkup.so
  2. Self-serve signup: docs.linkup.so
  3. Enterprise plan: linkup.so
  4. Supported actions: docs.linkup.so
  5. Regions: docs.linkup.so
  6. Sandbox: docs.linkup.so
  7. SDK languages: github.com · github.com
  8. MCP server: docs.linkup.so
  9. SOC 2: docs.linkup.so · linkup.so
  10. HIPAA: docs.linkup.so
  11. GDPR: docs.linkup.so · linkup.so
  12. Published SLA: linkup.so · docs.linkup.so
  13. Rate limits: docs.linkup.so

Change history

Every field change, who made it, and when - from our audited data pipeline and editors.

  1. 2026-06-15 Score Docs Quality: 1545
  2. 2026-06-15 Score Agent Friendliness: 3065
  3. 2026-06-14 API Reference URL: (none)https://docs.linkup.so/pages/documentation/endpoints/search/reference
  4. 2026-06-14 Robots Allows Agents: (none)Yes
  5. 2026-06-14 Llms Txt URL: (none)https://docs.linkup.so/llms.txt
  6. 2026-06-14 Has Structured Data: (none)Yes
  7. 2026-06-14 Llms Txt Present: NoYes
  8. 2026-06-14 Capabilities: {}{"agent_ready":true,"zero_retention":true,"content_extraction":true}
  9. 2026-06-14 Summary Md: (none)Linkup is a production-grade web search API designed for AI applications, cover…
  10. 2026-06-14 Best For: (none)Prototypes and side projects - free to start, no sales call, Regulated or enter…
  11. 2026-06-14 Score Agent Friendliness: (none)30
  12. 2026-06-14 Score Pricing Transparency: (none)100
  13. 2026-06-14 Score Setup Speed: (none)85
  14. 2026-06-14 Score Docs Quality: (none)15
  15. 2026-06-14 Score Procurement Friction: (none)100
  16. 2026-06-14 Score Trust Readiness: (none)40
  17. 2026-06-14 Scoring Methodology: (none)Scores are computed deterministically from this profile's published, sourced fi…
  18. 2026-06-14 Llms Txt Present: (none)No
  19. 2026-06-14 Docs URL: (none)https://docs.linkup.so
  20. 2026-06-14 Status Page URL: (none)https://status.linkup.so
  21. 2026-06-14 Rendering: (none)static
  22. 2026-06-14 Requires Sales Call: set to No
  23. 2026-06-14 Enterprise Plan Available: set to Yes
  24. 2026-06-14 SOC 2: set to type_2
  25. 2026-06-14 HIPAA: set to No
  26. 2026-06-14 GDPR: set to Yes
  27. 2026-06-14 SLA Published: set to No
  28. 2026-06-14 Data Retention Policy URL: set to https://www.linkup.so/privacy-policy
  29. 2026-06-14 Documented Rate Limits: set to 10 queries per second per organization for Search and Fetch endpoints. x402 req…
  30. 2026-06-14 Rate Limit Requests: set to 10
  31. 2026-06-14 Rate Limit Window: set to second
  32. 2026-06-14 Known Restrictions: set to Zero Data Retention available on every tier (API queries not stored by default)…
  33. 2026-06-14 Auth Methods: set to api_key
  34. 2026-06-14 Auth Docs URL: set to https://docs.linkup.so/pages/documentation/platform/authentication
  35. 2026-06-14 API Style: set to rest
  36. 2026-06-14 Base URL: set to https://api.linkup.so/v1
  37. 2026-06-14 API Version: set to 1
  38. 2026-06-14 Versioning Scheme: set to url
  39. 2026-06-14 Stability: set to ga
  40. 2026-06-14 MCP URL: set to https://mcp.linkup.so/mcp
  41. 2026-06-14 Quickstart URL: set to https://docs.linkup.so/pages/documentation/get-started/quickstart
  42. 2026-06-14 Idempotency Supported: set to No
  43. 2026-06-14 Error Format: set to vendor-specific
  44. 2026-06-14 Requires Verification: set to No
  45. 2026-06-14 Starting Price Usd: set to 0.001
  46. 2026-06-14 Price Basis: set to API call
  47. 2026-06-14 Slug: set to linkup
  48. 2026-06-14 Launched At: set to 2024-01-01
  49. 2026-06-14 Notable Customers: set to McKinsey & Company, Cohere, LEGORA, SNCF, EY, Artisan, GitGuardian, Blackfin, D…
  50. 2026-06-14 Fields Not Found: set to supported_languages, iso_27001, pci_dss, webhooks_supported (confirmed absent f…

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