ToolVet
78trust / 100

Proxy Agent Memory

by Agent Memory Key-Value Store in Search & web

x402 APIPassing, checked 5 h ago

Persistent memory for AI agents without an account: store JSON under a key and read it back in a later run, or share it with other agents. Your first write creates a store and returns its secret (mem_...); pass it as store on every later call. Operations: set (with optional if_version for safe concurrent updates), get, get_many, delete, list (prefix, tag, paging), search (words in keys and values), append (rolling list such as a log or task queue, oldest items drop off), incr (atomic counter).

POST
https://agentsvc.io/api/v1/proxy/agent-memory
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
216 ms
216 ms slowest 5%
Last check
Passed
5 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

POST https://agentsvc.io/api/v1/proxy/agent-memory

Each call costs $0.002 in USDC on Polygon, 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.

POST https://agentsvc.io/api/v1/proxy/agent-memory
content-type: application/json

{
  "key": "example",
  "op": "get",
  "store": "mem_demo_read_only"
}

Parameters

ParameterTypeRequiredDescription
afterstringNolist: continue after this key
bynumberNoincr step, default 1
if_versionintegerNoset only if the current version matches (0 = key must not exist)
keystringNo
keysarray of stringNoFor get_many and delete
limitintegerNo
max_itemsintegerNoappend: keep at most this many items, default 100, max 1000
opstringNoDefault: set if value is given, get if key is given, else list One of: set, get, get_many, delete, list, search, append, incr.
prefixstringNo
querystringNosearch: words that must all appear in key or value
storestringNoStore secret from an earlier call (mem_...). Omit on your first write to create a store
tagstringNo
tagsarray of stringNo
ttl_daysintegerNo Default: 30.
valueanyNoAny JSON value, up to 64 KB (set, append)
with_valuesbooleanNolist: include values

Example response

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

{
  "data": {},
  "success": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentsvc.io/api/v1/proxy/agent-memory' \
  -H 'content-type: application/json' \
  --data-raw '{"key":"example","op":"get","store":"mem_demo_read_only"}'

# 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 - -X POST 'https://agentsvc.io/api/v1/proxy/agent-memory' \
  -H 'content-type: application/json' \
  --data-raw '{"key":"example","op":"get","store":"mem_demo_read_only"}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentsvc.io%2Fapi%2Fv1%2Fproxy%2Fagent-memory&method=POST
const res = await pay("https://agentsvc.io/api/v1/proxy/agent-memory", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "key": "example",
    "op": "get",
    "store": "mem_demo_read_only"
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentsvc.io/api/v1/proxy/agent-memory",
        json={
            "key": "example",
            "op": "get",
            "store": "mem_demo_read_only",
        },
    )
    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
5 h agoPassed402216 ms$0.002