Discover / api.block402.xyz

Block402

□ No challenge detected

Bitcoin read-only RPC and supported simulations. Submit method and params as JSON. Method schemas, limits and prices: https://api.block402.xyz/docs/api.md. Obtain a bound quote with a private Idempotency-Key before signing.

x402
Base
USDC
Blockchain

Listed price: $0.0025
Challenge detected: 0 of the last 9 checks
Last checked: 17 Oct, 09:26 UTC
In our index since: 1 Oct 2026

Endpoint

curl -i https://api.block402.xyz/rpc/bitcoin
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

2 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://api.block402.xyz/rpc

POST/bitcoin$0.0025Bitcoin read-only RPC and supported simulations. Submit method and params as JSON. Method schemas, limits and prices: https://api.block402.xyz/docs/api.md. Obtain a bound quote with a private Idempotency-Key before signing.
POST/ethereum$0.0025Ethereum read-only RPC and supported simulations. Submit method and params as JSON. Method schemas, limits and prices: https://api.block402.xyz/docs/api.md. Obtain a bound quote with a private Idempotency-Key before signing.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 2 of 2 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.block402.xyz

Recent checks

5 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
17 Oct, 09:26 UTC	No challenge detected	404	352ms
16 Oct, 08:13 UTC	No challenge detected	404	116ms
14 Oct, 19:26 UTC	No challenge detected	404	180ms
12 Oct, 22:31 UTC	No challenge detected	404	174ms
11 Oct, 00:15 UTC	No challenge detected	404	234ms
9 Oct, 15:32 UTC	No challenge detected	404	102ms
8 Oct, 09:33 UTC	No challenge detected	404	87ms
7 Oct, 06:40 UTC	No challenge detected	404	493ms
5 Oct, 05:04 UTC	No challenge detected	404	72ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 09:26 UTC, we detected no payment challenge.

What price is recorded for Block402?

Its listed price is $0.0025.

What payment terms does Block402 advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Block402 listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 1 Oct 2026.

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