Linkup
"Production-grade Web Search API for AI" [1]
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 / 100Agent friendliness
- 100 / 100Pricing transparency
- 85 / 100Setup speed
- 45 / 100Docs quality
- 100 / 100Procurement ease
- 40 / 100Trust readiness
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]
| Plan | Item | Per | Amount | Source |
|---|---|---|---|---|
| Pay-as-you-go | Search (fast or standard depth, searchResults output) | request | $0.005 | source |
| Pay-as-you-go | Search (fast or standard depth, sourcedAnswer or structured output) | request | $0.006 | source |
| Pay-as-you-go | Search (deep depth, searchResults output) | request | $0.05 | source |
| Pay-as-you-go | Search (deep depth, sourcedAnswer or structured output) | request | $0.055 | source |
| Pay-as-you-go | Fetch (URL content extraction, without JavaScript rendering) | request | $0.001 | source |
| Pay-as-you-go | Fetch (URL content extraction, with JavaScript rendering) | request | $0.005 | source |
| Pay-as-you-go | Research (reasoningDepth S — light coverage) | request | $0.25 | source |
| Pay-as-you-go | Research (reasoningDepth M — balanced) | request | $0.5 | source |
| Pay-as-you-go | Research (reasoningDepth L — thorough, default) | request | $1.5 | source |
| Pay-as-you-go | Research (reasoningDepth XL — exhaustive) | request | $2.5 | source |
| Enterprise | Custom pricing (contact sales) — includes personalized index, dedicated refresh rates, private environment, IP whitelisting, SLA, dedicated support | - | source |
Capabilities
- 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
Integration
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.
Exa
"Web search, built for AI agents. One API for search, crawling, and research agents."
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."
Tavily Search API
"Real-time search, extraction, research, and web crawling through a single, secure API."
Jina AI Search Foundation (DeepSearch / Reader)
"Your Search Foundation, Supercharged."
Parallel Search API
"The highest accuracy web search for your AI"
References
- ↑Description: linkup.so
- ↑Self-serve signup: docs.linkup.so
- ↑Enterprise plan: linkup.so
- ↑Supported actions: docs.linkup.so
- ↑Regions: docs.linkup.so
- ↑Sandbox: docs.linkup.so
- ↑SDK languages: github.com · github.com
- ↑MCP server: docs.linkup.so
- ↑SOC 2: docs.linkup.so · linkup.so
- ↑HIPAA: docs.linkup.so
- ↑GDPR: docs.linkup.so · linkup.so
- ↑Published SLA: linkup.so · docs.linkup.so
- ↑Rate limits: docs.linkup.so
Change history
- 2026-06-15 Score Docs Quality: 15 → 45
- 2026-06-15 Score Agent Friendliness: 30 → 65
- 2026-06-14 API Reference URL: (none) → https://docs.linkup.so/pages/documentation/endpoints/search/reference
- 2026-06-14 Robots Allows Agents: (none) → Yes
- 2026-06-14 Llms Txt URL: (none) → https://docs.linkup.so/llms.txt
- 2026-06-14 Has Structured Data: (none) → Yes
- 2026-06-14 Llms Txt Present: No → Yes
- 2026-06-14 Capabilities: {} → {"agent_ready":true,"zero_retention":true,"content_extraction":true}
- 2026-06-14 Summary Md: (none) → Linkup is a production-grade web search API designed for AI applications, cover…
- 2026-06-14 Best For: (none) → Prototypes and side projects - free to start, no sales call, Regulated or enter…
- 2026-06-14 Score Agent Friendliness: (none) → 30
- 2026-06-14 Score Pricing Transparency: (none) → 100
- 2026-06-14 Score Setup Speed: (none) → 85
- 2026-06-14 Score Docs Quality: (none) → 15
- 2026-06-14 Score Procurement Friction: (none) → 100
- 2026-06-14 Score Trust Readiness: (none) → 40
- 2026-06-14 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
- 2026-06-14 Llms Txt Present: (none) → No
- 2026-06-14 Docs URL: (none) → https://docs.linkup.so
- 2026-06-14 Status Page URL: (none) → https://status.linkup.so
- 2026-06-14 Rendering: (none) → static
- 2026-06-14 Requires Sales Call: set to No
- 2026-06-14 Enterprise Plan Available: set to Yes
- 2026-06-14 SOC 2: set to type_2
- 2026-06-14 HIPAA: set to No
- 2026-06-14 GDPR: set to Yes
- 2026-06-14 SLA Published: set to No
- 2026-06-14 Data Retention Policy URL: set to https://www.linkup.so/privacy-policy
- 2026-06-14 Documented Rate Limits: set to 10 queries per second per organization for Search and Fetch endpoints. x402 req…
- 2026-06-14 Rate Limit Requests: set to 10
- 2026-06-14 Rate Limit Window: set to second
- 2026-06-14 Known Restrictions: set to Zero Data Retention available on every tier (API queries not stored by default)…
- 2026-06-14 Auth Methods: set to api_key
- 2026-06-14 Auth Docs URL: set to https://docs.linkup.so/pages/documentation/platform/authentication
- 2026-06-14 API Style: set to rest
- 2026-06-14 Base URL: set to https://api.linkup.so/v1
- 2026-06-14 API Version: set to 1
- 2026-06-14 Versioning Scheme: set to url
- 2026-06-14 Stability: set to ga
- 2026-06-14 MCP URL: set to https://mcp.linkup.so/mcp
- 2026-06-14 Quickstart URL: set to https://docs.linkup.so/pages/documentation/get-started/quickstart
- 2026-06-14 Idempotency Supported: set to No
- 2026-06-14 Error Format: set to vendor-specific
- 2026-06-14 Requires Verification: set to No
- 2026-06-14 Starting Price Usd: set to 0.001
- 2026-06-14 Price Basis: set to API call
- 2026-06-14 Slug: set to linkup
- 2026-06-14 Launched At: set to 2024-01-01
- 2026-06-14 Notable Customers: set to McKinsey & Company, Cohere, LEGORA, SNCF, EY, Artisan, GitGuardian, Blackfin, D…
- 2026-06-14 Fields Not Found: set to supported_languages, iso_27001, pci_dss, webhooks_supported (confirmed absent f…
Suggest an edit / leave a review
Leave a review or comment
curl -X POST https://apio.sh/api/feedback/linkup \
-H 'Content-Type: application/json' \
-d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'Suggest a correction to a field (cite a source)
curl -X POST https://apio.sh/api/suggest/linkup/FIELD \
-H 'Content-Type: application/json' \
-d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'