https://agentdataapi.onrender.com/dev/breaking-changesGET /dev/breaking-changes · x402 API by agentdataapi
What breaks when you upgrade a package, and what to use instead. Structured migration data from each project's official upgrade guide: removed APIs with replacements and reasons, changed defaults, behavior changes, incompatible deps, and codemod commands. For coding agents whose training data predates recent releases. Covers react 19, typescript 6, pandas 3, express 5, django 6. Params: ?package=react&version=19.0.0. Free list at /dev/packages.
What does this x402 API do?
https://agentdataapi.onrender.com/dev/breaking-changes. This is an x402-gated GET API resource from agentdataapi. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-15. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-15
- Resource ID
- a4b47ab022dc0a5d416f382e
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://agentdataapi.onrender.com/dev/breaking-changes", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
OPTIONS https://agentdataapi.onrender.com/ returned 405.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.