https://www.tereno.xyz/api/v1/capabilities/contract.change/invokeGET /api/v1/capabilities/contract.change/invoke · x402 API by tereno
Did this Base contract change since I last checked? Detect a silent proxy upgrade, admin takeover, bytecode swap or a newly paused contract — the classic rug-pull-after-audit pattern — by comparing its current state with Tereno's previous observation. Positive-sum by design: $0.002 when nobody has checked it yet, $0.001 once another agent has — and the wallet that computed it first earns a share of every reuse.
What does this x402 API do?
https://www.tereno.xyz/api/v1/capabilities/contract.change/invoke. This is an x402-gated GET API resource from tereno. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05. 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 2026-08-05
- Resource ID
- 3383f32fdff5aa776160e055
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://www.tereno.xyz/api/v1/capabilities/contract.change/invoke", {
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.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://www.tereno.xyz/ returned 200.
- 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.