name: nexus-regex-generator
description: "Generate and explain regular expressions"
version: 2.1.0
capabilities:

• id: invoke-regex-generator

description: "Generate and explain regular expressions"
permissions:
network: true
filesystem: false
shell: false
inputs:

• name: input

type: string
required: true
description: "The input text or query"
outputs:
type: object
properties:
result:
type: string
description: "The service response"
requires:
env: [NEXUSPAYMENTPROOF]
protocols:

• masumi
• mpp
• x402
• ap2
• xrpl
• a2a

payment:
mpp_standard: "IETF draft-httpauth-payment-00"
accepted_currencies: [ADA, DJED, iUSD, USDCx, USDM, USDC, XLM, XRP, RLUSD]
supported_chains: [cardano, stellar, xrpl]
ap2_supported: true
batch_settlement: true
mpp_discovery: "https://ai-service-hub-15.emergent.host/api/mpp/discover"
ap2_config: "https://ai-service-hub-15.emergent.host/api/ap2/config"
xrpl_config: "https://ai-service-hub-15.emergent.host/api/xrpl/config"
stablecoin_registry: "https://ai-service-hub-15.emergent.host/api/mpp/stablecoins"
metadata: '{"openclaw":{"emoji":"\u26a1","requires":{"env":["NEXUSPAYMENTPROOF"]},"primaryEnv":"NEXUSPAYMENTPROOF"}}'

Regex Generator

NEXUS Agent-as-a-Service on Cardano + Stellar + XRPL | Price: $0.10/request | Accepts: ADA, DJED, iUSD, USDCx, USDM (Cardano) + USDC, XLM (Stellar) + XRP, RLUSD (XRPL)

When to use

Use when you need to generate and explain regular expressions.

Steps

Option A: x402 Standard (Recommended)

1. Call the service endpoint without payment headers.
2. Receive HTTP 402 with WWW-Authenticate: Payment header AND x402 accepts[] array in response body.
3. Select a paymentRequirement from accepts[] matching your preferred network + asset.
4. Networks: cardano:mainnet (ADA, DJED, iUSD, USDCx, USDM), stellar:pubnet (USDC, XLM), sandbox (free).
5. Send payment to the payTo address for maxAmountRequired in the specified asset.
6. Stellar fee sponsorship: POST your signed XDR to https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor — NEXUS pays gas, you need 0 XLM.
7. Retry with X-PAYMENT: <base64url JSON {x402Version:1, scheme:"exact", network, payload:{tx_hash, currency}}> header.
8. Parse the JSON response and X-PAYMENT-RESPONSE header.

Option B: MPP Standard

1. Call the service endpoint without payment headers.
2. Receive HTTP 402 with WWW-Authenticate: Payment header listing all accepted currencies and amounts.
3. Pick your preferred chain + currency: Cardano (ADA, stablecoins) or Stellar (USDC, XLM).
4. Create payment: Masumi escrow (Cardano) or direct Stellar transfer.
5. Stellar fee sponsorship: POST your signed XDR to https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor — NEXUS pays gas, you need 0 XLM.
6. Retry with Authorization: Payment <base64url-credential> header.
7. Parse the JSON response and Payment-Receipt header.

Option C: Legacy Header

1. Send a POST request to the NEXUS API endpoint with your input.
2. Include the X-Payment-Proof header (Masumi payment ID or sandbox_test for testing).
3. Parse the JSON response and return the result.

API Call

curl -X POST https://ai-service-hub-15.emergent.host/api/original-services/regex-generator \
  -H "Content-Type: application/json" \
  -H "X-Payment-Proof: $NEXUS_PAYMENT_PROOF" \
  -d '{
  "input": "Example input for Regex Generator"
}'

Endpoint: https://ai-service-hub-15.emergent.host/api/original-services/regex-generator
Method: POST
Headers:

• Content-Type: application/json
• X-PAYMENT: <base64url JSON> (x402 standard — recommended)
• Authorization: Payment <credential> (MPP standard)
• X-Payment-Proof: <masumi_payment_id> (legacy — use sandbox_test for free testing)

Accepted Currencies: ADA, DJED, iUSD, USDCx, USDM (Cardano) | USDC, XLM (Stellar) | XRP, RLUSD (XRPL)
AP2 (Google Agent Payments Protocol): Pre-authorize payments via mandates, settle atomically. See https://ai-service-hub-15.emergent.host/api/ap2/config.
XRPL Batch Settlement: Settle up to 20 mandates in ONE tx with ~5s finality. See skill nexus-ap2-batched-settle.
x402 Discovery: GET https://ai-service-hub-15.emergent.host/api/mpp/x402 (all services in native x402 format)
MPP Discovery: GET https://ai-service-hub-15.emergent.host/api/mpp/discover
Stablecoin Registry: GET https://ai-service-hub-15.emergent.host/api/mpp/stablecoins (includes on-chain policy IDs)
Stellar Info: GET https://ai-service-hub-15.emergent.host/api/mpp/stellar (assets, recipient, fee sponsorship)
Fee Sponsorship: POST https://ai-service-hub-15.emergent.host/api/mpp/stellar/sponsor (NEXUS pays Stellar gas — agents need 0 XLM)

External Endpoints

| URL | Method | Data Sent |
|-----|--------|-----------|
| https://ai-service-hub-15.emergent.host/api/original-services/regex-generator | POST | Input parameters as JSON body |

Security & Privacy

• All data is sent to https://ai-service-hub-15.emergent.host over HTTPS/TLS.
• No data is stored permanently; requests are processed and discarded.
• Payment proofs are verified on the Cardano blockchain via the Masumi Protocol.
• No filesystem access or shell execution required.

Model Invocation Note

This skill calls the NEXUS AI service API which uses LLM models (GPT-5.2, Claude Sonnet 4.5, GPT-4o) to process requests. The AI processes your input server-side and returns a structured response. You may opt out by not installing this skill.

Trust Statement

By using this skill, your input data is sent to NEXUS (https://ai-service-hub-15.emergent.host) for AI processing. Payments are non-custodial via the Masumi Protocol on Cardano. Only install if you trust NEXUS as a service provider. Visit https://ai-service-hub-15.emergent.host for full documentation.

Tags

machine-learning, artificial-intelligence, free-trial, agent-to-agent, health-monitoring, budget