Walmart Marketplace APIs
PYPI · MCP-WALMART-MARKETPLACE · SCANNED SEP 17
MCP server for Walmart Marketplace APIs (US, 3P seller)
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 Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
- 1 of 32 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency6
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- License check failed: no license is declared. See how to fix → Fail
- Actively maintained (last published 7 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability83
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1187 tokens (~148/item across 8 items; 6 tools + 2 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 Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the Walmart Marketplace APIs MCP server?
Walmart Marketplace APIs runs locally as a PyPI package, launched with uvx mcp-walmart-marketplace. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · mcp-walmart-marketplace
claude mcp add alyiox-mcp-walmart-marketplace -- uvx mcp-walmart-marketplace
{
"mcpServers": {
"alyiox-mcp-walmart-marketplace": {
"command": "uvx",
"args": [
"mcp-walmart-marketplace"
]
}
}
} {
"servers": {
"alyiox-mcp-walmart-marketplace": {
"command": "uvx",
"args": [
"mcp-walmart-marketplace"
]
}
}
} codex mcp add alyiox-mcp-walmart-marketplace -- uvx mcp-walmart-marketplace
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"alyiox-mcp-walmart-marketplace": {
"type": "local",
"command": [
"uvx",
"mcp-walmart-marketplace"
],
"enabled": true
}
}
} openclaw mcp add alyiox-mcp-walmart-marketplace --command uvx --arg mcp-walmart-marketplace
mcp_servers:
alyiox-mcp-walmart-marketplace:
command: "uvx"
args: ["mcp-walmart-marketplace"] {
"McpServers": {
"alyiox-mcp-walmart-marketplace": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"mcp-walmart-marketplace"
]
}
}
} assistant mcp add alyiox-mcp-walmart-marketplace -t stdio -c uvx -a mcp-walmart-marketplace
{
"mcpServers": {
"alyiox-mcp-walmart-marketplace": {
"command": "uvx",
"args": [
"mcp-walmart-marketplace"
]
}
}
} 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.
- 17 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- 13 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 12 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- 10 Sept 26 −4
- Source repository: pass → fail ▼ security
- Security disclosure: fail → unverified ▼ functional
- 8 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 6 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
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 17 Sept 2026 · Analysed pypi/mcp-walmart-marketplace@0.1.0a1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | hatchling.build |
Background: Why install scripts are a supply-chain risk →
Dependencies 32 packages
| Packages resolved | 32 |
|---|---|
| No linked repository | 1 |
| 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 →
call_endpoint ~287
[WalmartMarketplace] Execute an authenticated API request. Give operation_id, or method and path together. Auth, WM_MARKET, WM_GLOBAL_VERSION, WM_SANDBOX and correlation headers are added by the server.
| Name | Type | Req | Description |
|---|---|---|---|
| advertiser_id | integer | yes | [WalmartMarketplace] Advertiser (seller profile) id to act as. Required — selects the credential. Src: config. |
| body | – | – | [WalmartMarketplace] JSON request body for POST/PUT/PATCH. |
| environment | string | yes | [WalmartMarketplace] Target environment — production or sandbox. Src: config. |
| method | – | – | [WalmartMarketplace] HTTP method. Required unless operation_id is given. |
| operation_id | – | – | [WalmartMarketplace] Operation id as domain:operationId. Resolves method, path, and required headers from the spec. Src: operations. |
| params | – | – | [WalmartMarketplace] Query string parameters as a JSON object. |
| path | – | – | [WalmartMarketplace] API path after the base URL, e.g. /v3/orders. Required unless operation_id is given. |
| path_params | – | – | [WalmartMarketplace] Values for {placeholders} in the path, e.g. {"purchaseOrderId": "1796277083022"}. |
| region | string | yes | [WalmartMarketplace] Region label, e.g. us. Src: config. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | – | – |
| cached_at | – | – | – |
| curl | – | – | – |
| error | – | – | – |
| status_code | – | – | – |
| truncated | – | – | – |
No examples provided.
describe_endpoint ~98
[WalmartMarketplace] Describe one OpenAPI operation with its schema closure. Returns the operation plus every components.schemas entry reachable from it, so request bodies and responses can be built without the full spec. Server-managed auth and QoS headers are omitted — do not supply them.
| Name | Type | Req | Description |
|---|---|---|---|
| operation_id | string | yes | [WalmartMarketplace] Operation id, qualified as domain:operationId (e.g. order-management:getAllOrders). Src: operations. |
Structured output declared, but exposes no named fields.
No examples provided.
download_file ~260
[WalmartMarketplace] Download a report, label, or other binary payload to a local path. Give a full url, or operation_id (or method and path). Follows redirects and drops credentials when a redirect leaves Walmart's host.
| Name | Type | Req | Description |
|---|---|---|---|
| advertiser_id | integer | yes | [WalmartMarketplace] Advertiser (seller profile) id to act as. Src: config. |
| dest_path | string | yes | [WalmartMarketplace] Local path to write the downloaded bytes to. |
| environment | string | yes | [WalmartMarketplace] Target environment — production or sandbox. Src: config. |
| method | – | – | [WalmartMarketplace] HTTP method when using path. |
| operation_id | – | – | [WalmartMarketplace] Operation id as domain:operationId. Src: operations. |
| params | – | – | [WalmartMarketplace] Query string parameters. |
| path | – | – | [WalmartMarketplace] API path when not using url. |
| path_params | – | – | [WalmartMarketplace] Values for {placeholders} in path. |
| region | string | yes | [WalmartMarketplace] Region label, e.g. us. Src: config. |
| url | – | – | [WalmartMarketplace] Absolute URL to fetch, e.g. a report URL returned by a previous call. |
| Name | Type | Req | Description |
|---|---|---|---|
| bytes_written | – | – | – |
| content_type | – | – | – |
| error | – | – | – |
| path | – | – | – |
| status_code | – | – | – |
| urls | – | – | – |
No examples provided.
list_endpoints ~114
[WalmartMarketplace] List OpenAPI operations with optional filters.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | – | – | [WalmartMarketplace] Limit to one API domain, e.g. order-management. Src: specs. |
| method | – | – | [WalmartMarketplace] Filter by HTTP verb — GET, POST, PUT, PATCH, DELETE. |
| query | – | – | [WalmartMarketplace] Case-insensitive substring match on operation id, path, or summary. |
| tag | – | – | [WalmartMarketplace] Filter to operations whose OpenAPI tags include this value. |
Structured output declared, but exposes no named fields.
No examples provided.
refresh_specs ~67
[WalmartMarketplace] Refresh bundled OpenAPI specs from the public registry into the user cache, which then takes precedence over the bundled copies.
| Name | Type | Req | Description |
|---|---|---|---|
| spec_id | – | – | [WalmartMarketplace] Refresh only this spec, e.g. order-management. Omit to refresh all. Src: specs. |
Structured output declared, but exposes no named fields.
No examples provided.
upload_feed ~187
[WalmartMarketplace] Upload a feed file for a feed type. Posts the local file as multipart/form-data to /v3/feeds and returns the feed id.
| Name | Type | Req | Description |
|---|---|---|---|
| advertiser_id | integer | yes | [WalmartMarketplace] Advertiser (seller profile) id to act as. Src: config. |
| environment | string | yes | [WalmartMarketplace] Target environment — production or sandbox. Src: config. |
| feed_type | string | yes | [WalmartMarketplace] Walmart feedType, e.g. MP_ITEM, MP_INVENTORY, RETIRE_ITEM. Valid values are enumerated on each domain's POST /v3/feeds operation. Src: operations. |
| file_path | string | yes | [WalmartMarketplace] Local path of the feed file to upload. |
| region | string | yes | [WalmartMarketplace] Region label, e.g. us. Src: config. |
| Name | Type | Req | Description |
|---|---|---|---|
| body | – | – | – |
| cached_at | – | – | – |
| curl | – | – | – |
| error | – | – | – |
| status_code | – | – | – |
| truncated | – | – | – |
No examples provided.
What is the Walmart Marketplace APIs MCP server?
Walmart Marketplace APIs is an MCP server listed in the public MCP registry as io.github.alyiox/mcp-walmart-marketplace. MCP server for Walmart Marketplace APIs (US, 3P seller). This page covers its PyPI package (mcp-walmart-marketplace).
Is the Walmart Marketplace APIs MCP server safe to use?
Walmart Marketplace APIs scores 77 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 September 2026. 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 Walmart Marketplace APIs MCP server expose?
Walmart Marketplace APIs exposes 6 tools: list_endpoints, describe_endpoint, call_endpoint, upload_feed, download_file, refresh_specs. Their descriptions and schemas cost roughly 1,013 tokens of context every time the server is loaded.
Is the Walmart Marketplace APIs MCP server still maintained?
Walmart Marketplace APIs is still listed as active in the MCP registry. We last reached this channel on 17 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.