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x402 Universal Payer

Local package path declaredNo credentials listedRepository declared by sourceUpdated 2026-08-19

io.github.nirholas/x402-bridge · Registry status: active

Report data on this entry

At a glance

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.

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
1.0.2 · 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

6 of 12 categories. All categories in the segment catalogue

What this entry shares with others

Same repository

49 registry entries for this 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-bridge
Package coordinate
npm:@three-ws/mcp-bridge
Declared version
1.0.2
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

Measured values
Required secrets declaredNo 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 locationLocal package path declared local
Original data – Transports (raw): stdio
Source: MCP-Register · collected on 2026-08-06 · derived
Path argument presentno
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 listedRepository declared by source yes
Original data – Repository (raw): https://github.com/nirholas/three.ws
Source: MCP-Register · collected on 2026-08-06 · derived
Declared version1.0.2
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.

Raw values
Description (raw)Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.
Source: MCP-Register · collected on 2026-08-26 · self-declared
Environment variables (raw)MCP_BRIDGE_EVM_PRIVATE_KEY, MCP_BRIDGE_SVM_PRIVATE_KEY, MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC, MCP_BRIDGE_MAX_TOTAL_ATOMIC, MCP_BRIDGE_ALLOWED_PAYTO, MCP_BRIDGE_ALLOWED_HOSTS, MCP_BRIDGE_ALLOW_HTTP, MCP_BRIDGE_DISCOVER_LIMIT, MCP_BRIDGE_BAZAAR_URL, MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER, MCP_BRIDGE_MAX_DEPOSIT_ATOMIC, X402_MCP_BRIDGE_CHANNELS_DIR, RPC_URL_8453
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)mcp-bridge
Source: MCP-Register · collected on 2026-08-16 · self-declared
Package identifiers (raw)@three-ws/mcp-bridge
Source: MCP-Register · collected on 2026-08-16 · self-declared
Package versions (raw)1.0.2
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)MCP_BRIDGE_ALLOWED_HOSTS=Comma-separated hostname allowlist for outbound paid requests. When set, any other host is refused before a request is signed. · MCP_BRIDGE_ALLOWED_PAYTO=Comma-separated payee allowlist. When set, any payment whose payTo address is not listed is refused. · MCP_BRIDGE_ALLOW_HTTP=Set to 1 to allow http:// targets (local development only). https is enforced otherwise. · MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER=How many request-amounts to deposit at once when opening an EVM batch-settlement channel. · MCP_BRIDGE_BAZAAR_URL=x402 Bazaar discovery endpoint. Override to point at a self-hosted or alternative bazaar. · MCP_BRIDGE_DISCOVER_LIMIT=Max number of x402 Bazaar resources to register as dynamic tools at startup. Set 0 to disable discovery. · MCP_BRIDGE_EVM_PRIVATE_KEY=0x-prefixed 32-byte hex private key that funds USDC payments on EVM chains (Base, Arbitrum, …). At least one of the EVM/SVM keys is required. Treat like cash — use a dedicated low-balance wallet. · MCP_BRIDGE_MAX_DEPOSIT_ATOMIC=Hard cap in atomic units on a single batch-settlement channel deposit or top-up. · MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC=Per-call spending cap in atomic units (USDC has 6 decimals). Payments above this abort with a clear reason. · MCP_BRIDGE_MAX_TOTAL_ATOMIC=Cumulative session spending ceiling in atomic units. Once total spend would exceed it, further payments abort until restart. · MCP_BRIDGE_SVM_PRIVATE_KEY=Solana secret key that funds USDC payments: base58 64-byte secret key (Phantom / solana-keygen format) or a JSON array of 64 integers. At least one of the EVM/SVM keys is required. Treat like cash. · RPC_URL_8453=Per-chain RPC override, one variable per chain id (RPC_URL_<chainId>, e.g. RPC_URL_8453 for Base). Defaults to viem's public RPC for that chain. · X402_MCP_BRIDGE_CHANNELS_DIR=Directory for persisted batch-settlement channel state (survives client restarts).
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/mcp-bridge","version":"1.0.2","runtimeHint":"npx","transport":"stdio","environment":[{"name":"MCP_BRIDGE_EVM_PRIVATE_KEY","description":"0x-prefixed 32-byte hex private key that funds USDC payments on EVM chains (Base, Arbitrum, …). At least one of the EVM/SVM keys is required. Treat like cash — use a dedicated low-balance wallet.","format":"string","required":false,"secret":true},{"name":"MCP_BRIDGE_SVM_PRIVATE_KEY","description":"Solana secret key that funds USDC payments: base58 64-byte secret key (Phantom / solana-keygen format) or a JSON array of 64 integers. At least one of the EVM/SVM keys is required. Treat like cash.","format":"string","required":false,"secret":true},{"name":"MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC","description":"Per-call spending cap in atomic units (USDC has 6 decimals). Payments above this abort with a clear reason.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_MAX_TOTAL_ATOMIC","description":"Cumulative session spending ceiling in atomic units. Once total spend would exceed it, further payments abort until restart.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOWED_PAYTO","description":"Comma-separated payee allowlist. When set, any payment whose payTo address is not listed is refused.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOWED_HOSTS","description":"Comma-separated hostname allowlist for outbound paid requests. When set, any other host is refused before a request is signed.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOW_HTTP","description":"Set to 1 to allow http:// targets (local development only). https is enforced otherwise.","format":"boolean","required":false,"secret":false},{"name":"MCP_BRIDGE_DISCOVER_LIMIT","description":"Max number of x402 Bazaar resources to register as dynamic tools at startup. Set 0 to disable discovery.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_BAZAAR_URL","description":"x402 Bazaar discovery endpoint. Override to point at a self-hosted or alternative bazaar.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER","description":"How many request-amounts to deposit at once when opening an EVM batch-settlement channel.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_MAX_DEPOSIT_ATOMIC","description":"Hard cap in atomic units on a single batch-settlement channel deposit or top-up.","format":"number","required":false,"secret":false},{"name":"X402_MCP_BRIDGE_CHANNELS_DIR","description":"Directory for persisted batch-settlement channel state (survives client restarts).","format":"string","required":false,"secret":false},{"name":"RPC_URL_8453","description":"Per-chain RPC override, one variable per chain id (RPC_URL_<chainId>, e.g. RPC_URL_8453 for Base). Defaults to viem's public RPC for that chain.","format":"string","required":false,"secret":false}],"additional_arguments_declared":false}],"remotes":[]}
Source: MCP-Register · collected on 2026-09-08 · self-declared
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Changes

Changes
2026-09-08Connection paths (source structure): – → {"packages":[{"registryType":"npm","identifier":"@three-ws/mcp-bridge","version":"1.0.2","runtimeHint":"npx","transport":"stdio","environment":[{"name":"MCP_BRIDGE_EVM_PRIVATE_KEY","description":"0x-prefixed 32-byte hex private key that funds USDC payments on EVM chains (Base, Arbitrum, …). At least one of the EVM/SVM keys is required. Treat like cash — use a dedicated low-balance wallet.","format":"string","required":false,"secret":true},{"name":"MCP_BRIDGE_SVM_PRIVATE_KEY","description":"Solana secret key that funds USDC payments: base58 64-byte secret key (Phantom / solana-keygen format) or a JSON array of 64 integers. At least one of the EVM/SVM keys is required. Treat like cash.","format":"string","required":false,"secret":true},{"name":"MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC","description":"Per-call spending cap in atomic units (USDC has 6 decimals). Payments above this abort with a clear reason.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_MAX_TOTAL_ATOMIC","description":"Cumulative session spending ceiling in atomic units. Once total spend would exceed it, further payments abort until restart.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOWED_PAYTO","description":"Comma-separated payee allowlist. When set, any payment whose payTo address is not listed is refused.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOWED_HOSTS","description":"Comma-separated hostname allowlist for outbound paid requests. When set, any other host is refused before a request is signed.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_ALLOW_HTTP","description":"Set to 1 to allow http:// targets (local development only). https is enforced otherwise.","format":"boolean","required":false,"secret":false},{"name":"MCP_BRIDGE_DISCOVER_LIMIT","description":"Max number of x402 Bazaar resources to register as dynamic tools at startup. Set 0 to disable discovery.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_BAZAAR_URL","description":"x402 Bazaar discovery endpoint. Override to point at a self-hosted or alternative bazaar.","format":"string","required":false,"secret":false},{"name":"MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER","description":"How many request-amounts to deposit at once when opening an EVM batch-settlement channel.","format":"number","required":false,"secret":false},{"name":"MCP_BRIDGE_MAX_DEPOSIT_ATOMIC","description":"Hard cap in atomic units on a single batch-settlement channel deposit or top-up.","format":"number","required":false,"secret":false},{"name":"X402_MCP_BRIDGE_CHANNELS_DIR","description":"Directory for persisted batch-settlement channel state (survives client restarts).","format":"string","required":false,"secret":false},{"name":"RPC_URL_8453","description":"Per-chain RPC override, one variable per chain id (RPC_URL_<chainId>, e.g. RPC_URL_8453 for Base). Defaults to viem's public RPC for that chain.","format":"string","required":false,"secret":false}],"additional_arguments_declared":false}],"remotes":[]}
2026-08-26Description (raw): – → Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.
2026-08-20Declared version: 1.0.1 → 1.0.2

These are the 3 most recent changes to this entry. Full history

tracevero · https://tracevero.com/mcp/io-github-nirholas-x402-bridge