Best Hosted Knowledge Bases for AI Agents in 2027
Compare DocsBot, Chatbase, and Dify Cloud for AI agents using docs and support tickets, with plan limits, refresh checks, and a practical retrieval test.
Topic
AI Agents
Agent frameworks (LangChain, CrewAI, etc.)
Best managed browsers for authenticated AI agents in 2027
Compare Browserbase, Browserless, and Hyperbrowser for saved logins, session isolation, concurrency, replay, pricing, and authenticated AI agent workflows.
Best voice AI platforms for agencies in 2027
Compare Synthflow, Vapi, and Retell for agency clients: workspace isolation, white-label features, billing, shared capacity, and repeatable onboarding.
Best AI customer support agents for SaaS ticket actions in 2027
Choose a SaaS support agent by the account actions it can execute, its customer identity checks, and what it bills as an outcome.
Vapi vs Retell for insurance voice agents in 2027
Compare Vapi and Retell for insurance calls: warm transfers, CRM actions, call capacity, pricing, and a practical pilot test for human handoff failures.
How to stop CrewAI retries from firing tools twice
CrewAI task retries re-run tools that already succeeded. This post shows the SQLite claim-before-execute guard that stops duplicate payments and emails.
Fix LangChain OutputParserException: List for a String Field
Why switching to a larger model surfaces a list-for-string ValidationError in LangChain's PydanticOutputParser, and the two fixes that actually hold.
Fix LangChain's 'authorizedCollections is not supported' on Firestore
The toolkit crashes at get_tools() because Firestore rejects the authorizedCollections option. Here is the local patch while PR langchain-mongodb#363 stays open.
How to Deploy an AI Agent to Production on AWS Lambda (Serverless)
Lambda isn't a cheaper container: no warm process for state, a 900-second ceiling, and streaming that's native only on Node.js. Here's how to ship an agent around all three.
How to Deploy an AI Agent to Production with Express and Docker
A copy-paste recipe for wrapping a Node.js agent in a streaming Express route, a non-root multi-stage Dockerfile, and a BullMQ queue that stops one long-running agent turn from hanging your whole event loop.