ToolVet
77trust / 100

Embeddings

by AgentRXI in AI models & inference

x402 APIPassing, checked 1 h ago

OpenAI-compatible embeddings endpoint (bge-m3, 1024 dimensions, 100+ languages): same request and response shape as OpenAI /v1/embeddings, including encoding_format base64. Up to 100 inputs per call, flat price, no API key: point any OpenAI SDK at https://agentrxi.com/v1 and pay per request with x402. Priced by size and model: $0.003 + 3x the model token cost (bge-m3 is cheapest). Also callable as GET with the same fields as query parameters.

GET
https://agentrxi.com/v1/embeddings
Price
$0.003
per call in USDC
Uptime
90.0%
last 30 days
Response time
69 ms
1.6 s slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://agentrxi.com/v1/embeddings

Each call costs $0.003001 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://agentrxi.com/v1/embeddings?input=x402+lets+agents+pay+per+API+call&model=bge-m3

Parameters

ParameterTypeRequiredDescription
encoding_formatstringNofloat (default) | base64
inputstringYesText to embed (POST also accepts an array of up to 100 strings)
modelstringNoIgnored; always bge-m3

Example response

The provider's example. We can't check it without paying.

{
  "data": [
    {
      "embedding": [
        0.012,
        -0.034
      ],
      "index": 0,
      "object": "embedding"
    }
  ],
  "model": "bge-m3",
  "object": "list",
  "usage": {
    "prompt_tokens": 9,
    "total_tokens": 9
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agentrxi.com/v1/embeddings?input=x402+lets+agents+pay+per+API+call&model=bge-m3'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://agentrxi.com/v1/embeddings?input=x402+lets+agents+pay+per+API+call&model=bge-m3' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003001" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentrxi.com%2Fv1%2Fembeddings
const res = await pay("https://agentrxi.com/v1/embeddings?input=x402+lets+agents+pay+per+API+call&model=bge-m3");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agentrxi.com/v1/embeddings?input=x402+lets+agents+pay+per+API+call&model=bge-m3")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
1 h agoPassed40280 ms$0.003
6 h agoPassed4021.5 s$0.003
11 h agoPassed402456 ms$0.003
15 h agoExpected HTTP 402, got 50250245 ms-
19 h agoPassed40247 ms$0.003
Show 5 older checks
23 h agoPassed40262 ms$0.003
28 h agoPassed4021.6 s$0.003
32 h agoPassed40269 ms$0.003
36 h agoPassed40250 ms$0.003
46 h agoPassed40247 ms$0.002

History

15 Oct 2026Price changed from $0.002 to $0.003