Live Amazon marketplace data for AI agents — product details, reviews, keyword search, best-sellers, deals, live offers and stock, and seller profiles across 20 country marketplaces.

No API key required. Unkeyed callers get a small free probe budget, then an HTTP 402 payment challenge payable autonomously via x402 (USDC on Base mainnet). Bring an API key if you already have one and calls bill to your account instead.

Install

No install step is required: uvx fetches apiguru-mcp from PyPI and caches it on first launch. (pip install apiguru-mcp works too, and so does running straight from this repository: uvx --from "git+https://github.com/apiguru-app/agent-kit#subdirectory=mcp" apiguru-mcp.)

uvx apiguru-mcp

No Python or uv on the machine? npx -y apiguru-mcp (Node 18+) runs a stdio bridge to the hosted server with the same 11 tools; see ../npm/README.md.

Claude Code

# remote (nothing to run locally):
claude mcp add --transport http apiguru https://mcp.apiguru.app/mcp
# or the plugin, which also carries the skill:
/plugin marketplace add apiguru-app/agent-kit
/plugin install apiguru@apiguru

Codex CLI

codex mcp add apiguru --url https://mcp.apiguru.app/mcp
# or locally:
codex mcp add apiguru -- uvx apiguru-mcp

Hermes Agent / OpenClaw / any stdio client

{
  "mcpServers": {
    "apiguru": {
      "command": "uvx",
      "args": ["apiguru-mcp"],
      "env": { "APIGURU_API_KEY": "optional-key-here" }
    }
  }
}

Drop the env block entirely to run keyless.

claude.ai, Claude Desktop connectors, ChatGPT connectors

https://mcp.apiguru.app/account

Add it as a custom connector. The client discovers the OAuth 2.1 authorization server, registers itself, and sends you to a sign-in page where you use your Apiguru dashboard e-mail and password or paste an API key (Google sign-in accounts use the key). Every call then bills your account at your plan's rates. Disconnect from the client to revoke.

These clients call from their vendor's shared addresses and cannot send headers, which is why the keyless endpoint below is the wrong choice for them: all of their users would share one free-probe budget.

Remote, keyless (Claude Code, Codex, Hermes, any agent that can send headers)

https://mcp.apiguru.app/mcp

Streamable HTTP. Send X-API-KEY if you have one; omit it to go keyless.

Tools

Tool	Does	Price
`list_capabilities`	Endpoints, prices, marketplaces	free, no network call
`product_details`	Full record for one ASIN	$0.01
`product_details_batch`	Up to 20 ASINs at once	$0.008/item
`product_reviews`	Reviews, rating, "customers say"	$0.01
`search`	Keyword search with filters and sorting	$0.01
`offers_stock`	Offers, buy box, live stock (≤10 ASINs)	$0.015/item
`best_sellers`	Category rankings	$0.01
`deals`	Current discounts with filters	$0.01
`seller_profile_batch`	Seller profiles (≤10 IDs)	$0.012/item
`seller_products`	A seller's catalogue	$0.01
`seller_reviews`	Seller feedback	$0.01

Prefer the batch tools over looping the single-item ones — they are cheaper per item and one round trip instead of N.

Error semantics worth knowing

Some errors cost money and some do not:

404 — the item genuinely isn't on that marketplace. Billed. Retrying won't help; try a different geo.
503 — an Apiguru-side fetch failure. Not billed. Retry. On the keyless path a free probe spent on a 503 is handed back, and a signed x402 payment is left unsettled (X-Payment-Status: not-settled).
429 — rate limit. Back off and retry.
413 — too many items in a batch (20 ASINs for product_details_batch, 10 for offers_stock and seller_profile_batch). Not billed; split the list.
400 — bad input (ASINs must be 10 uppercase alphanumeric chars). Not billed.

Configuration

Variable	Default	Purpose
`APIGURU_API_KEY`	unset	Use the keyed API instead of the keyless gateway
`APIGURU_BASE_URL`	from spec	Override the API base (self-hosted/staging)
`APIGURU_MCP_ALLOWED_HOSTS`	`mcp.apiguru.app,localhost,127.0.0.1`	Hosts the HTTP transport accepts. Must include the public hostname when running behind a reverse proxy, or every request is rejected with 421.
`APIGURU_MCP_ALLOWED_ORIGINS`	derived	CORS/DNS-rebinding origin allowlist
`APIGURU_MCP_STATELESS`	`true`	Stateless streamable HTTP. Keep it on: in stateful mode the SDK snapshots each session's request context at `initialize`, so a key sent on a later request would be ignored.
`APIGURU_AGENT_INTERNAL_URL`	unset	Hosted deployments only: the gateway's address on the private network. With `AGENT_INTERNAL_TOKEN` set, keyless calls go there and carry the real caller's address so free probes are keyed per caller, not per MCP container.
`APIGURU_OAUTH_ENABLED`	`false`	Hosted deployments only: mount the OAuth 2.1 endpoint at `/account` (needs `DATABASE_URL`; tokens are stored hashed in `mcp_oauth_*` tables).
`APIGURU_MCP_PUBLIC_URL`	from spec	The OAuth issuer, e.g. `https://mcp.apiguru.app`.
`APIGURU_API_INTERNAL_URL`	unset	Hosted deployments only: the backend on the private network, used for keyed calls and for proxying password logins to its `/login`.
`APIGURU_OAUTH_ACCESS_TTL` / `APIGURU_OAUTH_REFRESH_TTL`	1 day / 30 days	Token lifetimes in seconds. Refresh tokens rotate.

Running the HTTP server yourself

pip install "apiguru-mcp[http]"
apiguru-mcp --http --host 0.0.0.0 --port 8790

Also serves /health, /llms.txt and /spec.json unauthenticated.

Development

Tools are generated from apiguru_mcp/data/endpoints.json, which is written by agent-kit/spec/generate.py from the canonical spec. To add or change an endpoint, edit agent-kit/spec/endpoints.json and re-run the generator — the MCP tools, the OpenAPI document and llms.txt all update together.