Is Coinbase x402 Bazaar (Discovery API + MCP) open source?

Partly. Some of Coinbase x402 Bazaar (Discovery API + MCP) is published as source (https://github.com/coinbase/x402) and some is not. Checked as of 2026-11-07.

Which chains does Coinbase x402 Bazaar (Discovery API + MCP) support?

Coinbase x402 Bazaar (Discovery API + MCP) lists support for Base as of 2026-11-07.

Is Coinbase x402 Bazaar (Discovery API + MCP) still maintained?

The most recent code activity Sato Hub observed was on 2026-11-06 (last commit 2026-11-06, last release 2026-04-13), which Sato Hub labels "Active". Posts on X are not counted as maintenance. Activity is a recency signal, not a quality judgment.

How do I install or run Coinbase x402 Bazaar (Discovery API + MCP)?

Node.js (TypeScript CDP SDK); also plain REST and a hosted MCP. Install: npm install @coinbase/cdp-sdk. Entry: import { searchX402Resources } from '@coinbase/cdp-sdk'. Sato Hub reproduced this install in a container on 2026-11-02.

MCP

Coinbase x402 Bazaar (Discovery API + MCP)

Name: Coinbase x402 Bazaar (Discovery API + MCP)
Author: Coinbase

Public, keyless catalog of x402 payment-gated services indexed by the CDP facilitator, searchable by intent via REST, TypeScript SDK or a hosted MCP server.

Sato Score81
ChainsBase

ActiveSelf-ReportedActive · 1d ago

Coinbase x402 Bazaar (Discovery API + MCP) is a partly open-source MCP server by Coinbase on Base, with last code activity on 2026-11-06 (Active). Latest release on 2026-04-13. Sato Score 81/100 (how open, active and verifiable it is, not a safety grade), as of 2026-11-07. How the score works →

See how to install Coinbase x402 Bazaar (Discovery API + MCP) →

Last commit Nov 6, 2026 · Last release Apr 13, 2026 · ★ 178

Listed from coinbase.com on 2026-09-23. Install: reproduced by Sato Hub on 2026-11-02. Evidence →

Website ↗Docs ↗GitHub ↗X / Twitter ↗

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Overview

The x402 Bazaar is a catalog of payment-gated services discovered by the CDP Facilitator (https://docs.cdp.coinbase.com/x402/bazaar). Discovery is public and needs no CDP API key. It exposes searchX402Resources, listX402DiscoveryResources and listX402DiscoveryMerchant through the SDK and REST, plus a Bazaar MCP. Results include 30-day call volume, unique payers and last-called time, and can be filtered by network, asset, scheme and price. AWS's AgentCore Payments GA (Aug 18, 2026) ships it as a curated MCP target exposing 10,000+ paid endpoints (https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/payments-connect-bazaar.html).

Sato Score

81/100· High

How open, active & verifiable — not a safety or returns grade.

Maintenance & liveness: 35/35
Code transparency: 15/20
Interface verifiability: 10/10
Docs & demo: 6/10
Listing transparency & provenance: 12/15
Independent verification: 3/10

Deploy path reproduced — install verified in an isolated container (proves installability, not runtime safety).

View verification & embed badge →History →How the Sato Score works

Sato Check

v1.61.0 · as of 2026-11-06

Does it take your key?: Reads a key
Does your key leave?: Not yet run · earlier run 2026-10-26: not observed
Can it move funds on its own?: None found

Full profile, evidence and limits →

A profile describes what we read and ran, with dates. It is not a safety rating, an audit or an endorsement, and "not found" is not "not there".

Evidence — listed vs checked · what the words mean

Listed from coinbase.com on 2026-09-23. Install: reproduced by Sato Hub on 2026-11-02.

Claim	Value	Evidence	Source	Checked
Chains supported	Base	self-reported	docs.cdp.coinbase.com	as of 2026-11-07
Verification status	Self-Reported — not independently reviewed	self-reported	coinbase.com	as of 2026-11-07
Recent activity	last release 2026-04-13 · last commit 2026-11-06	observed	github.com/coinbase/x402	2026-11-07
Install works	reproduced — install and entry both completedshows the install path works as written; not a statement about runtime behaviour	✓ reproduced	docs.cdp.coinbase.com	2026-11-02
MCP endpoint answers	answered — 3 tools listed	observed	api.cdp.coinbase.com	2026-11-07
Daily check record	45 of 45 daily checks since 2026-09-23 succeededa success rate of our checks, not uptime; the source is this listing's own history	observed	—	2026-11-06
Takes your key	reads private-key material	traced	satohub.ai	2026-11-06
Key leaves the machine	not yet run with planted test keysthe sandbox lane has not run on this version	observed	satohub.ai	not dated
Moves funds on its own	no action that signs or sends funds found	traced	satohub.ai	2026-11-06
Built by	Coinbaseconfidence 0.80	self-reported	docs.cdp.coinbase.com	as of 2026-09-30
Works with	CDP SDK (TypeScript), REST API, MCPconfidence 0.80	self-reported	docs.cdp.coinbase.com	as of 2026-09-30
Sato Score	81/100 (High)how open, active and verifiable — not a safety or quality grade	computed	satohub.ai	2026-11-07

Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.

Install — reproduced in a container Nov 2, 2026

Runtime: Node.js (TypeScript CDP SDK); also plain REST and a hosted MCP

npm install @coinbase/cdp-sdk
import { searchX402Resources } from '@coinbase/cdp-sdk'

You supply: Nothing to search the public catalog; paying for a discovered service needs a funded x402 buyer wallet

Read from the project’s own docs as of 2026-11-02. What a deploy spec is →

Tool inventory — 3 tools, probed live 2026-11-07

proxy_tool_call — STEP 2: Execute a tool discovered via search_resources. This is the ONLY way to call tools returned by search_resources — they cannot be called directly. Requires: toolName (from search_resources outp
search_resources — STEP 1: Search for available x402-payable tools. Returns a list of tool DESCRIPTIONS (not callable tools). IMPORTANT: The returned tools are NOT directly callable — you MUST use proxy_tool_call to exe
validate_endpoint — Run diagnostics on an x402 endpoint to check whether it is correctly configured for bazaar discovery. Probes the URL live and reports per-check results (HTTPS, returns 402, valid x402 v2 payload, acce

Answers a handshake: yes · 2026-11-07
Answers a call: yes — search_resources returned in 151 ms

Live probe verifies the interface responds — not what the tools do, their safety, or their output quality. The call is one read-only tool named by this server's own list (list_/get_/search_, no mutating verb anywhere in the name, no required arguments and none that look like a key, an address or an amount), asked once a day with no arguments. Not asked is not a failure.

Observed record — 46 daily checks since 2026-09-23

100%of 46 checks since 2026-09-23 succeeded

Currently responding for 46 days

Succeeded: 46
Failed: 0
Their error: 0
Unattributed: 0

This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden.

Last 30 days — to 2026-11-07, one point per UTC day

Share of OUR checks that succeeded

100%

7-day rolling; unattributable days are gaps · 30/30 days

Tools listed

from the server's own tools/list · 29/30 days

Sato Score

as snapshotted that day · 29/30 days

A gap is a day we have no attributable observation — never a zero. Thirty points is the whole shape the free layer carries; the daily rows behind it stay in the snapshot series.

Skills that target this — 3, with disclosures

TrencherAI — Base Chain IntelligenceClawHub · soynull

804 installs · ★0

Real-time AI scoring for Base chain tokens via x402 micropayments. Score any token 0-100 with smart money signals, pattern win rate, launchpad context, and B...

no disclosure flags from the static scan

x402 Market ReconClawHub · 33ai-wq

352 installs · ★0

Use when deciding whether an x402 endpoint can actually be discovered and bought. Read-only measurement of the live market (registry demand, 402 delivery shape, directory checks, router caps) before anything is changed.

Executes fetched or decoded codeGenerates or handles private keys

Clawhub SkillClawHub · thearkoftech

58 installs

Buy Hyperliquid funding-carry intelligence over x402 - live EDGE/BASELINE/NEG verdicts across 178 perps with the rate-floor disclosed, full-universe hedgeable carry scans, daily settled-prints digests, and a public on-chain track record. Use when the task involves Hyperliquid funding rates, carry trading, perp/spot hedging, delta-neutral yield, or finding positive-carry opportunities.

no disclosure flags from the static scan

Disclosures describe what a skill declares and does; they are not safety verdicts. All skills →

Details

Chains: Base
Agent types: Registry, MCP Server
Open source: Partial
Works with: CDP SDK (TypeScript), REST API, MCP
Last checked: 2026-11-07

Marketplace Signals

No marketplace signals recorded for this resource yet.

Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.

#x402#discovery#mcp#marketplace#keyless#coinbase#cdp

Where Coinbase x402 Bazaar (Discovery API + MCP) fits

Payments Data

See something inaccurate or outdated?Submit a correction →

Listing History

Recorded changes to Coinbase x402 Bazaar (Discovery API + MCP)'s listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.

Nov 2, 2026
Verified: deploy spec
Sep 30, 2026
Auto-enriched: supported integrations, creator name
Sep 23, 2026
Listed on Sato Hub
Sep 23, 2026
Sato Hub began tracking this listing

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Reference

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Cite this page

Sato Hub. "Coinbase x402 Bazaar (Discovery API + MCP) — Sato Hub." Sato Hub, updated 2026-11-07, accessed 2026-11-07. https://satohub.ai/resources/coinbase-x402-bazaar

Data last refreshed 2026-11-07; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.

Coinbase x402 Bazaar (Discovery API + MCP)

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Watch Coinbase x402 Bazaar (Discovery API + MCP)

Check it from your agent

Your project?

Overview

Sato Score

Sato Check

Evidence — listed vs checked · what the words mean

Install — reproduced in a container Nov 2, 2026

Tool inventory — 3 tools, probed live 2026-11-07

Observed record — 46 daily checks since 2026-09-23

Last 30 days — to 2026-11-07, one point per UTC day

Skills that target this — 3, with disclosures

TrencherAI — Base Chain IntelligenceClawHub · soynull

x402 Market ReconClawHub · 33ai-wq

Clawhub SkillClawHub · thearkoftech

Details

Marketplace Signals

Where Coinbase x402 Bazaar (Discovery API + MCP) fits

Listing History

Compared with

Appears in

Related Resources

Coinbase AgentKit

Hyperliquid

Model Context Protocol (MCP)

Questions people ask about Coinbase x402 Bazaar (Discovery API + MCP)

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