x402 Wallet
Local package path declaredNo credentials listedRepository declared by sourceUpdated 2026-08-19
io.github.nirholas/x402-mcp · Registry status: active
At a glance
Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key.
Vendor's own description, untranslated and unverified
- Execution location
- Local package path declaredMCP-Register · 2026-08-06
- Required secrets declared
- No credentials listedMCP-Register · 2026-08-06
- Declared version and change
0.2.2· Source-reported change date 2026-08-19MCP-Register · 2026-08-20- Repository as declared
- github.com/nirholas/three.wsMCP-Register · 2026-08-06
- Configuration
- can be built from the disclosed start template
Inspect connection paths and prerequisites
Related categories
- MCP servers for cryptocurrency1,345
- MCP servers without declared required secrets35,800
- Locally executed MCP servers17,056
- MCP servers with a repository URL30,107
- Local MCP servers without declared required secrets13,238
- Local MCP servers with a repository URL16,152
6 of 13 categories. All categories in the segment catalogue
What this entry shares with others
Same repository
Page last changed:
Sources and collection
- Runs
- Local package path declared
- Credentials
- No credentials listed
- Registry record changed
- 2026-08-19
- Setup
- Template available
- Registry name
io.github.nirholas/x402-mcp- Package coordinate
npm:@three-ws/x402-mcp- Declared version
0.2.2- Source-reported listing date
- 2026-08-19
- Source-reported change date
- 2026-08-19
- First seen by tracevero
- 2026-08-06
- Vendor's website
- https://three.ws
Evidence for this page: The values on this page come from several collections. Each row therefore states its own origin. What the confidence levels mean
Measured values
| Required secrets declared | No credentials listed no Original data – Required secret variables (raw): confirmed absent Original data – Required secret headers (raw): confirmed absent Source: MCP-Register · collected on 2026-08-06 · derived |
|---|---|
| Execution location | Local package path declared local Original data – Transports (raw): stdio Source: MCP-Register · collected on 2026-08-06 · derived |
| Path argument present | no Original data – Path arguments (raw): confirmed absent Original data – Path environment variables (raw): confirmed absent Source: MCP-Register · collected on 2026-08-06 · derived |
| Repository URL listed | Repository declared by source yes Original data – Repository (raw): https://github.com/nirholas/three.ws Source: MCP-Register · collected on 2026-08-06 · derived |
| Field of use, derived from the vendor description | Cryptocurrency Original data – Description (raw): Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key. Source: MCP-Register · collected on 2026-08-26 · derived |
| Declared version | 0.2.2 Source: MCP-Register · collected on 2026-08-20 · self-declared |
What is measured is what a manifest declares, not what a piece of software does. This registry fetches no repository URL, no endpoint and no package index; nothing here is verified. Which value comes from which source, and by which rule it was formed, is set out in the Methodology.
Source data25
Evidence for this page: The values on this page come from several collections. Each row therefore states its own origin.
| Description (raw) | Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key. Source: MCP-Register · collected on 2026-08-26 · self-declared |
|---|---|
| Environment variables (raw) | SOLANA_SECRET_KEY, SOLANA_RPC_URL, MAX_PAY_USD, REQUIRE_CONFIRM, THREE_WS_BASE Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Required secret variables (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Transports (raw) | stdio Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Path arguments (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Repository (raw) | https://github.com/nirholas/three.ws Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Package registries (raw) | npm Source: MCP-Register · collected on 2026-08-06 · self-declared |
| Required secret headers (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Path environment variables (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Remote URLs (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Remote hosts (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Registry status message (raw) | confirmed absent Source: MCP-Register · collected on 2026-08-16 · self-declared |
| First listed in the registry (raw) | 2026-08-19 Source: MCP-Register · collected on 2026-08-20 · self-declared |
| Last changed in the registry (raw) | 2026-08-19 Source: MCP-Register · collected on 2026-08-20 · self-declared |
| Schema version of the raw record (raw) | https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Delivery form (raw) | package Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Repository platform (raw) | github Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Repository subfolder (raw) | packages/x402-mcp Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Package identifiers (raw) | @three-ws/x402-mcp Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Package versions (raw) | 0.2.2 Source: MCP-Register · collected on 2026-08-20 · self-declared |
| Runtime hints (raw) | npx Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Environment variable formats (raw) | boolean, number, string Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Environment variable descriptions (raw) | MAX_PAY_USD=Max USD a single pay_and_call may spend. Bounds a runaway or injected payment. · REQUIRE_CONFIRM=When on (default), pay_and_call refuses until re-issued with confirm:true. Set 0/false to disable the gate. · SOLANA_RPC_URL=Solana mainnet RPC endpoint. Defaults to the public cluster — bring your own (Helius / Quicknode / Triton) for production traffic. · SOLANA_SECRET_KEY=Base58 (or JSON byte-array) Solana secret key that signs payments and holds the USDC. Not needed for the read tools (find_services, inspect_endpoint, or x402_wallet with an explicit address). Treat like cash. · THREE_WS_BASE=Base URL of the three.ws API that serves /api/bazaar/search for find_services. Override only when self-hosting. Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Icon formats (raw) | image/svg+xml Source: MCP-Register · collected on 2026-08-16 · self-declared |
| Connection paths (source structure) | {"packages":[{"registryType":"npm","identifier":"@three-ws/x402-mcp","version":"0.2.2","runtimeHint":"npx","transport":"stdio","environment":[{"name":"SOLANA_SECRET_KEY","description":"Base58 (or JSON byte-array) Solana secret key that signs payments and holds the USDC. Not needed for the read tools (find_services, inspect_endpoint, or x402_wallet with an explicit address). Treat like cash.","format":"string","required":false,"secret":true},{"name":"SOLANA_RPC_URL","description":"Solana mainnet RPC endpoint. Defaults to the public cluster — bring your own (Helius / Quicknode / Triton) for production traffic.","format":"string","required":false,"secret":false},{"name":"MAX_PAY_USD","description":"Max USD a single pay_and_call may spend. Bounds a runaway or injected payment.","format":"number","required":false,"secret":false},{"name":"REQUIRE_CONFIRM","description":"When on (default), pay_and_call refuses until re-issued with confirm:true. Set 0/false to disable the gate.","format":"boolean","required":false,"secret":false},{"name":"THREE_WS_BASE","description":"Base URL of the three.ws API that serves /api/bazaar/search for find_services. Override only when self-hosting.","format":"string","required":false,"secret":false}],"additional_arguments_declared":false}],"remotes":[]} Source: MCP-Register · collected on 2026-09-08 · self-declared |
Embed this badge
Paste this line into a README of your own. The badge states how many values the registry holds for the entry and when it last looked, and it links back to this page.
[](https://tracevero.com/mcp/io-github-nirholas-x402-mcp)
The image is drawn again on every request, so it always reports the current state while the pasted line stays as it is. It carries no rating and no traffic light – only the two measured figures.
Changes
| 2026-09-08 | Connection paths (source structure): – → {"packages":[{"registryType":"npm","identifier":"@three-ws/x402-mcp","version":"0.2.2","runtimeHint":"npx","transport":"stdio","environment":[{"name":"SOLANA_SECRET_KEY","description":"Base58 (or JSON byte-array) Solana secret key that signs payments and holds the USDC. Not needed for the read tools (find_services, inspect_endpoint, or x402_wallet with an explicit address). Treat like cash.","format":"string","required":false,"secret":true},{"name":"SOLANA_RPC_URL","description":"Solana mainnet RPC endpoint. Defaults to the public cluster — bring your own (Helius / Quicknode / Triton) for production traffic.","format":"string","required":false,"secret":false},{"name":"MAX_PAY_USD","description":"Max USD a single pay_and_call may spend. Bounds a runaway or injected payment.","format":"number","required":false,"secret":false},{"name":"REQUIRE_CONFIRM","description":"When on (default), pay_and_call refuses until re-issued with confirm:true. Set 0/false to disable the gate.","format":"boolean","required":false,"secret":false},{"name":"THREE_WS_BASE","description":"Base URL of the three.ws API that serves /api/bazaar/search for find_services. Override only when self-hosting.","format":"string","required":false,"secret":false}],"additional_arguments_declared":false}],"remotes":[]} |
|---|---|
| 2026-08-26 | Field of use, derived from the vendor description: – → Cryptocurrency |
| 2026-08-26 | Description (raw): – → Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key. |
These are the 3 most recent changes to this entry. Full history
tracevero · https://tracevero.com/mcp/io-github-nirholas-x402-mcp