P0: agent memory and utilities

dev.workers.x402-bazaar-rank-worker.x402-bazaar-rank/agent-memory-utilsVersion 1.0.2

Key-value memory without an account, UUID, hash, JWT, JSON validation, time and random

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Responds913 msNov 14, 2026, 14:35 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:35 UTC
Latency: 913 ms
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Registry data as of: Nov 14, 2026, 22:14 UTC

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Connect

Streamable HTTP

https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utilsResponds913 msNov 14, 2026, 14:35 UTC

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Claude Code

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

Claude Desktop and claude.ai

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

Cursor

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

VS Code

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

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Tools

14 tools

Tools of P0: agent memory and utilities
	Description		Read-only	Idempotent	Open world
`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 data. Bad input is refused before any charge. A missing or expired key is refused (404) before any charge; to see key names use kv_list.	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 data. Bad input is refused before any charge. A missing or expired key is refused (404) before any charge; to see key names use kv_list.	No	Yes	Yes	Yes
`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 with an x402 or MPP client to get the data. Bad input is refused before any charge. Returns key names with size and times, no values: read one with kv_get.	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 with an x402 or MPP client to get the data. Bad input is refused before any charge. Returns key names with size and times, no values: read one with kv_get.	No	Yes	Yes	Yes
`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 or JSON, up to 8 KB) under key in a private namespace keyed to the wallet that pays. POST that JSON body to the URL with an x402 or MPP client to store it. Bad input is refused before any charge. Overwrites an existing key; the key expires after ttl (60 s to 90 days, default 30 days) and there is no delete. Values are stored unencrypted: do not store secrets. Read back with kv_get or kv_list.	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 or JSON, up to 8 KB) under key in a private namespace keyed to the wallet that pays. POST that JSON body to the URL with an x402 or MPP client to store it. Bad input is refused before any charge. Overwrites an existing key; the key expires after ttl (60 s to 90 days, default 30 days) and there is no delete. Values are stored unencrypted: do not store secrets. Read back with kv_get or kv_list.	No	Yes	Yes	Yes
`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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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 MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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 MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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. Bad input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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 the data. Bad input is refused before any charge. Returns valid, every violation with its path, and the schema keywords it ignored. First call each day returns the data itself, free; later calls return the paid request.	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 the data. Bad input is refused before any charge. Returns valid, every violation with its path, and the schema keywords it ignored. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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 client to get the data. Bad input is refused before any charge. Decode only: the signature is not verified. First call each day returns the data itself, free; later calls return the paid request.	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 client to get the data. Bad input is refused before any charge. Decode only: the signature is not verified. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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 input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	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 input is refused before any charge. First call each day returns the data itself, free; later calls return the paid request.	No	Yes	Yes	Yes
`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 with an x402 or MPP client to get the data. Bad input is refused before any charge.	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 with an x402 or MPP client to get the data. Bad input is refused before any charge.	No	Yes	Yes	Yes
`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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.	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). Call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.	No	Yes	Yes	Yes
`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 to get the data. Bad input is refused before any charge.	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 to get the data. Bad input is refused before any charge.	No	Yes	Yes	Yes

Details

Registry status: Active
Published: Nov 13, 2026
Updated: Nov 13, 2026
Website: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/tools#agent-memory-utils⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Developer tools Knowledge and notesSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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