Product / servicePublic reference
thirdweb x402
Payment-gated APIs and agent payment tools
Client and server tools for charging per request and giving agents access to paid APIs through wallets and MCP tools.
THE QUESTION IT ADDRESSES
How can a developer add x402 to a service?
A concise reading of published information. The explanatory grouping below is editorial, not an implementation test.
A simplified mechanism
- Declare payment requirements on the endpoint.
- Use a wallet-enabled client and settlement integration.
What it does not establish
Network and token support are implementation-specific; not every x402 endpoint accepts every asset.
Where it fits
One implementation of x402, with agent-facing tools on top.
Sources & further reading
Sources reviewed on2026-10-30. Summaries are paraphrased; follow the current source for changes.