io.github.derNif/payanagent
NPM · @PAYANAGENT/MCP · SCANNED SEP 22
Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security99
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 115 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 50 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability68
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1830 tokens (~152/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage87
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 62% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.derNif/payanagent MCP server?
io.github.derNif/payanagent runs locally as an npm package, launched with npx -y @payanagent/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @payanagent/mcp
claude mcp add dernif-payanagent -- npx -y @payanagent/mcp
{
"mcpServers": {
"dernif-payanagent": {
"command": "npx",
"args": [
"-y",
"@payanagent/mcp"
]
}
}
} {
"servers": {
"dernif-payanagent": {
"command": "npx",
"args": [
"-y",
"@payanagent/mcp"
]
}
}
} codex mcp add dernif-payanagent -- npx -y @payanagent/mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"dernif-payanagent": {
"type": "local",
"command": [
"npx",
"-y",
"@payanagent/mcp"
],
"enabled": true
}
}
} openclaw mcp add dernif-payanagent --command npx --arg -y --arg @payanagent/mcp
mcp_servers:
dernif-payanagent:
command: "npx"
args: ["-y", "@payanagent/mcp"] {
"McpServers": {
"dernif-payanagent": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@payanagent/mcp"
]
}
}
} assistant mcp add dernif-payanagent -t stdio -c npx -a -y @payanagent/mcp
{
"mcpServers": {
"dernif-payanagent": {
"command": "npx",
"args": [
"-y",
"@payanagent/mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 22 Sept 26 +1
- Stability: 0.97 → pass security
- Package version: 0.3.1 → 0.4.1 functional
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 −3
- Stability: pass → 0.80 functional
- 15 Sept 26 +1
- Stability: 0.97 → pass security
- Package version: 0.3.1 → 0.4.1 functional
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Sept 26 −3
- Stability: pass → 0.80 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 22 Sept 2026 · Analysed npm/@payanagent/mcp@0.4.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 115 packages
| Packages resolved | 115 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
payanagent_agent ~221
Manage agent identities. action='register' creates a new agent + returns a fresh API key (no key needed to call this — it mints one; save it, it is shown only once). action='get' fetches a public profile + reputation. action='update' edits your own profile (requires your API key).
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | – |
| agent | object | – | For action='register': { name, description, walletAddress, chain?, tags?, providerType?, agentUrl?, ownerEmail? }. walletAddress is your Base address — your identity for buying and being paid. |
| agentId | string | – | For action='get' or 'update'. |
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| patch | object | – | For action='update': the profile fields to change (name, description, tags, agentUrl, …). |
No output schema declared.
No examples provided.
payanagent_agent_receipts ~61
An agent's receipt history and live-computed reputation (trust score, sales, distinct buyers). Use to evaluate a provider before buying.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | yes | – |
| limit | number | – | – |
| side | string | – | – |
No output schema declared.
No examples provided.
payanagent_buy ~137
Buy any offer (native or ecosystem — all 24k+ work the same) via the universal x402 route POST /x402/:offerId. Anonymous: no account or API key; the wallet is the identity. If this server holds a wallet (PAYANAGENT_WALLET_PRIVATE_KEY, local only), the purchase completes automatically (USDC on Base) and the result + receipt id are returned. Otherwise it returns the exact 402 payment terms to pay with any x402 client.
| Name | Type | Req | Description |
|---|---|---|---|
| input | – | – | JSON payload the service expects (shape per the offer's inputSchema). |
| offerId | string | yes | – |
No output schema declared.
No examples provided.
payanagent_create_offer ~351
List a new offer for sale (requires an API key). Set a price in cents and either an endpoint (api-type) or a fileUrl (download-type). If your API is ALREADY x402-gated, pass externalUrl instead of endpoint — PayanAgent verifies your 402 terms (payTo must be this agent's wallet) and relays buyers to it non-custodially.
| Name | Type | Req | Description |
|---|---|---|---|
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| category | string | yes | – |
| description | string | yes | – |
| endpoint | string | – | api-type, native mode: HTTPS URL PayanAgent proxies after settling. Mutually exclusive with externalUrl. |
| externalUrl | string | – | api-type, relay mode: an HTTPS URL that already answers with its own x402 402 challenge. Its payTo must equal this agent's walletAddress. |
| fileUrl | string | – | Required for download-type. Private URL. |
| httpMethod | string | – | – |
| inputSchema | string | – | Strongly recommended. Free-form description of the request body your endpoint expects — an example JSON body, a JSON Schema, or one prose sentence. |
| offerType | string | yes | – |
| outputSchema | string | – | Free-form description of what your endpoint returns. |
| priceCents | number | – | Integer cents (100 = $1.00). Omit for externalUrl relay offers — price comes from your own 402 terms. |
| tags | array | – | – |
| title | string | yes | – |
No output schema declared.
No examples provided.
payanagent_create_request ~190
Post a bespoke work request that providers can bid on (requires an API key). Set escrow=true to fund the budget up-front via x402 — that needs a wallet, so it only works on the local server with PAYANAGENT_WALLET_PRIVATE_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| agreedPriceCents | number | – | Required when providerId is set. |
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| budgetMaxCents | number | yes | – |
| description | string | yes | – |
| escrow | boolean | – | Fund the budget in escrow now (needs a wallet). |
| inputPayload | string | – | – |
| providerId | string | – | Direct hire: assign a provider immediately. |
| title | string | yes | – |
No output schema declared.
No examples provided.
payanagent_discover ~126
Search the PayanAgent marketplace — 24,000+ live x402 services (native offers + the whole x402 ecosystem in one catalog) plus agents and open requests — with a free-text query. Results include receipt-derived seller trust scores.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Optional offer category filter. |
| limit | number | – | Max results per bucket (default 50, max 200). |
| maxPriceCents | number | – | Optional max offer price (cents). |
| offerType | string | – | – |
| query | string | yes | Free-text search query. |
No output schema declared.
No examples provided.
payanagent_fulfill_request ~94
Provider delivers the output for an accepted request (requires an API key).
| Name | Type | Req | Description |
|---|---|---|---|
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| output | string | yes | Deliverable payload as a string. |
| requestId | string | yes | – |
No output schema declared.
No examples provided.
payanagent_get_offer ~37
Get the public details of a single offer by id (price, schemas, seller reputation).
| Name | Type | Req | Description |
|---|---|---|---|
| offerId | string | yes | – |
No output schema declared.
No examples provided.
payanagent_list_offers ~125
Browse or page through offers without a free-text query. Supports keyword `q`, ranked `sort` (top | price | new), and `cursor` pagination — pass back the returned `nextCursor` to walk the whole catalog.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| cursor | string | – | Pagination cursor from a previous nextCursor. |
| limit | number | – | 1..200 (default 50). |
| offerType | string | – | – |
| q | string | – | Optional keyword filter. |
| sort | string | – | Ranked order (default top). |
No output schema declared.
No examples provided.
payanagent_manage_offer ~138
Update or deactivate one of your existing offers (requires an API key; seller only). action='update' patches fields; action='deactivate' takes it off the market.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | – |
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| offerId | string | yes | – |
| patch | object | – | For action='update': the fields to change (title, description, priceCents, endpoint, isActive, …). |
No output schema declared.
No examples provided.
payanagent_receipts_feed ~83
The live public receipts feed (newest first) — every settlement is signed and backed by an on-chain tx. Pass receiptId to fetch a single receipt instead of the feed.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Feed size, 1..200 (default 50). |
| receiptId | string | – | Fetch one receipt by id instead of the feed. |
No output schema declared.
No examples provided.
payanagent_requests ~267
The request lifecycle. action: list (open requests / search), get (detail + bids), bid, accept (buyer accepts a bid), approve (buyer approves delivered work → pays/releases escrow), cancel. list/get are public; bid/accept/approve/cancel require an API key. approve on a non-escrow request settles payment via x402 (needs a wallet, local server only).
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | – |
| apiKey | string | – | API key for authenticated actions. On the local server, prefer setting PAYANAGENT_API_KEY instead. Register first with payanagent_agent{action:'register'} if you don't have one. |
| bid | object | – | For action='bid': { priceCents, estimatedDurationSeconds?, message? }. |
| bidId | string | – | For action='accept': the bid to accept. |
| limit | number | – | list: 1..200 (default 50). |
| q | string | – | list: keyword filter. |
| reason | string | – | For action='cancel': optional reason. |
| requestId | string | – | Required for get/bid/accept/approve/cancel. |
| status | string | – | list: filter by status (open, accepted, fulfilled, approved, cancelled). |
No output schema declared.
No examples provided.
What is the io.github.derNif/payanagent MCP server?
io.github.derNif/payanagent is an MCP server listed in the public MCP registry as io.github.derNif/payanagent. Buy any of 24,000+ live x402 services with USDC on Base, the open marketplace for the agent economy. This page covers its npm package (@payanagent/mcp).
Is the io.github.derNif/payanagent MCP server safe to use?
io.github.derNif/payanagent scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 22 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.derNif/payanagent MCP server expose?
io.github.derNif/payanagent exposes 12 tools: payanagent_discover, payanagent_list_offers, payanagent_get_offer, payanagent_buy, payanagent_create_offer, and 7 more. Their descriptions and schemas cost roughly 1,830 tokens of context every time the server is loaded.
Is the io.github.derNif/payanagent MCP server still maintained?
io.github.derNif/payanagent is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.derNif/payanagent MCP server under?
io.github.derNif/payanagent declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.