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P0: agent memory and utilities is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Key-value memory without an account, UUID, hash, JWT, JSON validation, time and random
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http p0-agent-memory-and-utilities-mcp https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utils
# 2 — ask your agent for something these tools do
# kv_put, kv_get, kv_list and 11 more
P0: agent memory and utilities costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http p0-agent-memory-and-utilities-mcp https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp/agent-memory-utilsReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
14 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
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. Returns the exact paid x402 request for your input (POST /kv/put, $0.001 per call), with a link to the full schema; POST that JSON body to the URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| key | string | yes | Key, 1-128 characters from A-Z a-z 0-9 . _ : / - |
| value | string/object/array/number/boolean | yes | Text, or JSON stored as text (max 8 KB) |
| ttl | integer | no | Seconds to keep the key |
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 exact paid x402 request for your input (GET /kv/get, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| key | string | yes | Key, 1-128 characters from A-Z a-z 0-9 . _ : / - |
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 exact paid x402 request for your input (GET /kv/list, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| prefix | string | no | Only keys starting with this |
| limit | integer | no | Keys per page |
| cursor | string | no | cursor from the previous page |
Use when you need fresh UUIDs: n (1-100) random v4 or time-sortable v7 identifiers, generated on Cloudflare's edge with crypto randomness, no external call, under 100 ms. Returns the exact paid x402 request for your input (GET /util/uuid, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 acc
| Parameter | Type | Required | Notes |
|---|---|---|---|
| n | integer | no | How many |
| version | integer | no | 4 random, 7 time-sortable |
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 exact paid x402 request for your input (GET /util/hash, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. Wi
| Parameter | Type | Required | Notes |
|---|---|---|---|
| text | string | yes | Input to hash |
| algo | string | no | Comma list of sha256, sha1, sha384, sha512, md5 or all |
| encoding | string | no | How text is encoded |
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 exact paid x402 request for your input (GET /util/ip, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Authorization: Bearer p0k_…,
No parameter schema on file.
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 exact paid x402 request for your input (GET /util/jwt-decode, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Autho
| Parameter | Type | Required | Notes |
|---|---|---|---|
| token | string | yes | JWT header.payload.signature |
Use when you must check that a JSON document fits a schema before acting on it: validates json against a JSON Schema subset. Returns the exact paid x402 request for your input (GET /util/json-validate, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header Authorization: Bearer
| Parameter | Type | Required | Notes |
|---|---|---|---|
| json | string | yes | The document (JSON text; an object in a POST body is accepted too) |
| schema | string | yes | JSON Schema (subset) as JSON text |
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 exact paid x402 request for your input (GET /util/base64, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge
| Parameter | Type | Required | Notes |
|---|---|---|---|
| action | string | no | encode or decode |
| input | string | yes | Text to encode, or base64 to decode |
| url_safe | boolean | no | Use the url-safe alphabet without padding |
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 exact paid x402 request for your input (GET /time, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge. With a P0 access key (header A
| Parameter | Type | Required | Notes |
|---|---|---|---|
| tz | string | no | IANA zone(s), comma-separated, up to 10 (e.g. Europe/Berlin,Asia/Tokyo). With at= and no offset in it, the first zone is the zone of that wall time |
| to | string | no | IANA zone(s) to convert at= into, comma-separated, up to 10 |
| at | string | no | time to convert: ISO 8601 (2026-10-05T09:00, with or without offset) or unix seconds/milliseconds; default now |
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 exact paid x402 request for your input (GET /random, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge
| Parameter | Type | Required | Notes |
|---|---|---|---|
| n | integer | no | how many values |
| min | integer | no | smallest integer (inclusive) |
| max | integer | no | largest integer (inclusive) |
| choices | string | no | comma-separated items to pick from instead of min/max (up to 100) |
| unique | boolean | no | no repeated values (draw without replacement) |
| salt | string | no | your label mixed into the derivation |
| round | integer | no | a drand quicknet round that has already been published; default latest |
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 exact paid x402 request for your input (GET /x402/test, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| msg | string | no | Any text; echoed back in echo.query. Any other query parameter or a POST body (hashed) works too |
| dry | boolean | no | dry=1: free list of every accepted rail, nothing charged |
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 exact paid x402 request for your input (GET /x402-ping, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
No parameter schema on file.
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 exact paid x402 request for your input (GET /x402-echo, $0.001 per call), with a link to the full schema; call that URL with an x402 or MPP client to get the data. Bad input is refused before any charge.
No parameter schema on file.
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install P0: agent memory and utilities or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| kv_put | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| kv_get | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| kv_list | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_uuid | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_hash | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_ip | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_jwt_decode | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_json_validate | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| util_base64 | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| time | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| random | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| x402_test_purchase | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| x402_ping | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
| x402_echo | untrusted-input | untrusted-input: declares openWorldHint: true (interacts with entities outside the server) |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.0.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish P0: agent memory and utilities can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.