Comparison

Thirdweb vs Alchemy

Thirdweb and Alchemy both land on Depends.

Thirdweb

Depends

Confidence: Medium

Buy if you're building an onchain app and want wallets, contracts, RPC, and auth bundled in one platform.

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Alchemy

Depends

Confidence: Medium

Buy if your team is shipping or scaling an onchain app and wants managed RPC plus data APIs across many chains.

Read the full report

Thirdweb versus Alchemy
Compare	Thirdweb	Alchemy
Verdict	Depends	Depends
Best for	Web3 startups shipping token or NFT products	Web3 dev teams
Who it's not for	Any product without a blockchain component	Non-crypto projects . irrelevant tooling
Privacy	Three disclosed incidents since 2023 . a library flaw, an MCP advisory, and a bridge exploit . plus an active $50K bug bounty.^⁵	No known public vulnerabilities found in the sources reviewed.¹³
Support quality	No support evidence found	No support evidence in sources
Public sentiment	Reddit threads and reviews skew positive on breadth and beginner-friendliness, but review volume is too small to be conclusive.^⁸	Independent user feedback is thin . a 4.4/5 G2 seller rating across 14 reviews and scattered positive mentions, far fewer reviews than typical infrastructure tools.¹⁴
Biggest gotcha	Sep 2025 advisory flagged unauthorized transactions via thirdweb MCP . restrict agent wallet permissions^⁶	Usage-based compute pricing spikes fast; competitors claim 60% savings at scale

Pick Thirdweb when

Web3 startups shipping token or NFT products
Games adding onchain items
Teams needing embedded in-app wallets
Builders wiring wallets into AI agents

When Thirdweb is not a fit

Any product without a blockchain component
Hobbyists just learning Solidity . use raw libraries
Risk-averse teams handling custody at scale
Teams wanting stable, predictable pricing

Pick Alchemy when

Web3 dev teams
Dapps on multiple chains
NFT and data-heavy apps
Startups scaling onchain products

When Alchemy is not a fit

Non-crypto projects . irrelevant tooling
Hobbyists making one cheap RPC call
Teams without developers to wire up APIs
Cost-sensitive shops already happy on cheaper node providers

Sources

thirdweb.com . Infrastructure for AI Agentsthirdweb.com
official
thirdweb Pricingthirdweb.com
official
Retiring Legacy Pricing Plans on January 1st, 2026blog.thirdweb.com
official
Smart Contract Incident Report: Legacy Bridge Vulnerabilityblog.thirdweb.com
security
Multiple NFT collections at risk by flaw in open-source library (BleepingComputer)bleepingcomputer.com
security
Unauthorized Crypto Transactions Enabled by thirdweb MCP (mcpsec)mcpsec.dev
security
Thirdweb raises $24M at a $160M valuation (TechCrunch)techcrunch.com
news
Thirdweb Reviews (G2)g2.com
review
What do you think about Thirdweb framework (Reddit r/ethdev)reddit.com
review
Moralis vs thirdweb (RFP.wiki)rfp.wiki
review
Alchemy . Blockchain infrastructure for developersalchemy.com
official
Alchemy Pricing: Free, Pay as you Go & Enterprisealchemy.com
official
Security at Alchemyalchemy.com
security
alchemy . 14 reviews on G2g2.com
review
Alchemy Reviews . G2g2.com
review
Alchemy Rollups Reviews . AWS Marketplaceaws.amazon.com
review