Discover / api.x402ai.dev

x402ai

□ No challenge detected

Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embedding: number[768], model, dimensions, elapsed_ms}. One text per call; English works best.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 0 of the last 9 checks
Last checked: 17 Oct, 09:26 UTC
In our index since: 30 Sept 2026

Endpoint

curl -i https://api.x402ai.dev/api/embed
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

3 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.x402ai.dev/api

POST/embed$0.01Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embedding: number[768], model, dimensions, elapsed_ms}. One text per call; English works best.
POST/summarize$0.02Summarize a passage of text into a short, concise summary with no preamble (qwen3.5 2B model). Good for condensing articles, emails, logs or documents before passing them to another agent. POST JSON {"input": string}, up to 3000 characters; returns {summary, model, elapsed_ms}. Typically 5-15 s. Small model: may miss nuance in technical or long text. Text only.
POST/ask$0.04Answers questions (single-turn question answering) from a small local LLM (qwen3.5 2B). Best for general knowledge, definitions and simple reasoning. POST JSON {"input": string}, up to 3000 characters; returns {answer, model, elapsed_ms}. Answers are brief (2-3 sentences). Typically 5-15 s. Known limits: no web access, no memory between calls, and it can hallucinate or be wrong on recent events and obscure facts. Answers are unverified.

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

Showing 3 of 3 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.x402ai.dev

Recent checks

4 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	437ms
16 Oct, 08:13 UTC	No challenge detected	404	286ms
14 Oct, 19:26 UTC	No challenge detected	404	426ms
12 Oct, 22:31 UTC	No challenge detected	404	321ms
11 Oct, 00:15 UTC	No challenge detected	404	284ms
9 Oct, 15:32 UTC	No challenge detected	404	311ms
8 Oct, 09:33 UTC	No challenge detected	404	289ms
7 Oct, 03:32 UTC	No challenge detected	404	745ms
4 Oct, 17:05 UTC	No challenge detected	404	268ms

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 x402ai?

Its listed price is $0.01.

What payment terms does x402ai 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 x402ai listed?

In x402 Bazaar. Superstables first indexed it on 30 Sept 2026.

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