P0: agent memory and utilities

Connect Remote server

claude mcp add --transport http agent-memory-utils https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utils

{
  "mcpServers": {
    "agent-memory-utils": {
      "url": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utils"
    }
  }
}

{
  "servers": {
    "agent-memory-utils": {
      "type": "http",
      "url": "https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utils"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utils

Tools 14 found in our last check

• kv_put

  Returns the paid x402 request that would store your value (POST /kv/put, $0.001 per call; schema linked); this call stores nothing, and a value is stored only if your own client pays that request. Use when an agent needs memory between runs without an account: store value (text…

• kv_get

  Use when an agent needs a value it stored earlier with /kv/put: returns the text (and parsed json when it was stored as JSON), size. Returns the paid x402 request for your input (GET /kv/get, $0.001 per call; schema linked). Call that URL with an x402 or MPP client to get the da…

• kv_list

  Use when an agent needs to see what it has stored: lists up to 100 keys (optionally under prefix) in the namespace of the paying wallet with size, stored_at and expires_at. Returns the paid x402 request for your input (GET /kv/list, $0.001 per call; schema linked). Call that URL…

• util_uuid

  Use when you need fresh UUIDs: n (1-100) cryptographically random v4 or time-sortable v7 identifiers, no external call. Returns the paid x402 request for your input (GET /util/uuid, $0.001 per call; schema linked). Call that URL with an x402 or MPP client to get the data. Bad in…

• util_hash

  Use when you need a checksum or digest of a string: sha256 (default), sha1, sha384, sha512 and md5 of text given as utf8, hex or base64 (up to 64 KB), hex digests, no external call. Returns the paid x402 request for your input (GET /util/hash, $0.001 per call; schema linked). Ca…

• util_ip

  Use when an agent needs to know how it is seen from outside: its public IP plus the country, region, city, ASN, AS organization. Returns the paid x402 request for your input (GET /util/ip, $0.001 per call; schema linked). Call that URL with an x402 or MPP client to get the data.…

• util_jwt_decode

  Use when you need to inspect a JWT without a key: decoded header and payload, alg, kid, iat/nbf/exp as ISO times and whether it is expired now. Returns the paid x402 request for your input (GET /util/jwt-decode, $0.001 per call; schema linked). Call that URL with an x402 or MPP…

• util_json_validate

  Use when you need to check that a JSON document fits a schema before acting on it: validates json against a JSON Schema subset. Returns the paid x402 request for your input (GET /util/json-validate, $0.001 per call; schema linked). Call that URL with an x402 or MPP client to get…

• util_base64

  Use when you need base64 in or out: encode UTF-8 text to base64 (standard or url_safe) or decode base64 back to text (hex when the bytes are not UTF-8), up to 64 KB, no external call. Returns the paid x402 request for your input (GET /util/base64, $0.001 per call; schema linked)…

• time

  Use when you need the current UTC time from a server clock, the local time, UTC offset and DST flag in up to 10 IANA time zones (tz=Europe/Berlin,Asia/Tokyo). Returns the paid x402 request for your input (GET /time, $0.001 per call; schema linked). Call that URL with an x402 or…

• random

  Use when you need publicly verifiable random numbers: n integers in [min,max], a pick from choices=a,b,c or a unique draw, derived from a drand (League of Entropy) beacon round with round. Returns the paid x402 request for your input (GET /random, $0.001 per call; schema linked)…

• x402_test_purchase

  Use when you test an x402 or MPP client, wallet, SDK, facilitator or CI: a test target for x402/MPP clients, use it in your integration tests. Returns the paid x402 request for your input (GET /x402/test, $0.001 per call; schema linked). Call that URL with an x402 or MPP client…

• x402_ping

  Use for testing that your x402 client can pay and settle a real payment end to end at the smallest useful price: $0.001 in USDC (or USDT0 on Arbitrum) on any network listed in accepts. Returns the paid x402 request for your input (GET /x402-ping, $0.001 per call; schema linked).…

• x402_echo

  Use for debugging an x402 client: pay $0.001 in USDC (or USDT0 on Arbitrum) on any network in accepts and get back what the server received: the decoded payment payload. Returns the paid x402 request for your input (GET /x402-echo, $0.001 per call; schema linked). Call that URL…

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