Category

Search, crawl & RAG infra

Search, crawl, memory, and vector infrastructure.

• LlamaIndex

  LL

  Open-source framework for retrieval and agents. The cloud free plan includes 10,000 credits.

  Smoke-testedOpen sourceAgent

  Checked October 15, 2026

  Free tier: Yes · 10,000 credits.

  From: $50/mo

  Checked October 16, 2026

  • +Strength. We imported llama-index-core 0.14.25, and the cloud free plan includes 10,000 credits.
  • −Weakness. Cloud Starter is $50 per month after the 10,000 free credits.

• Mem0

  ME

  Memory layer for agents. We imported the Python package locally; no account and no model call.

  Smoke-testedOpen source

  Checked October 15, 2026

  Free tier: Yes · 10,000 add requests and 1,000 retrieval requests per month.

  From: $19/mo

  Checked October 16, 2026

  • +Strength. We imported mem0ai 2.2.1 locally, and the cloud plan includes 10,000 add requests and 1,000 retrieval requests per month.
  • −Weakness. The paid plan starts at $19 per month once you pass those monthly request limits.

• Firecrawl

  FI

  Turns websites into markdown for LLMs. Open-source repo plus a cloud API with a free plan.

  Docs checkedOpen source

  Checked October 15, 2026

  Free tier: Yes · 1,000 credits per month.

  From: Check pricing (opens in a new tab)

  Checked October 16, 2026

  • +Strength. The free cloud plan includes 1,000 credits per month to turn pages into markdown, and the repo is open source.
  • −Weakness. Paid cloud samples on the page included about $16 and $75, and a monthly starting price was not confirmed.

• Pinecone

  PI

  Managed vector database. Starter is free, and Builder is $20 per month.

  Docs checked

  Checked October 15, 2026

  Free tier: Yes

  From: $20/mo

  Trial: 3 weeks

  Checked October 16, 2026

  • +Strength. Starter is free for hosted vector search, and Builder is $20 per month with a 3-week trial.
  • −Weakness. Builder is $20 per month after the trial, and the free Starter limits were not spelled out on the page we parsed.

• Tavily

  TA

  Search API for agents that need web results. Pricing page showed a $0 option; not installed here.

  Docs checked

  Checked October 15, 2026

  Free tier: Yes · 1,000 API credits per month.

  From: $30/mo

  Checked October 16, 2026

  • +Strength. The free plan includes 1,000 API credits per month for agent web search.
  • −Weakness. The next plan starts at $30 per month, and the API returns search results rather than clicking through a logged-in site.

• Perplexity

  PE

  Web research product. Homepage returned HTTP 403 to our checker, so this listing is not fully checked.

  Not fully checked

  Checked October 15, 2026

  Free tier: Check pricing (opens in a new tab)

  From: Check pricing (opens in a new tab)

  Checked October 16, 2026

  • +Strength. The docs describe a web-research product, with API pricing written up on the official docs site.
  • −Weakness. The API pricing page we could read did not state a free-tier amount or a monthly starting price.