# Services from sigtap-outreach-api.sigtap.workers.dev on Zero

> sigtap-outreach-api.sigtap.workers.dev serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/sigtap-outreach-api.sigtap.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/sigtap-outreach-api.sigtap.workers.dev/health.json

## Services

- [Regex Match & Backtracking Risk Analyzer](https://www.zero.xyz/c/regex-match-backtracking-risk-analyzer-efd9920b/llms.txt): $0.001/call via x402. Runs a regex pattern against input text and returns all matches with capture groups, total match count, and a backtracking-risk heuristic
- [Email Deliverability Audit (SPF/DKIM/DMARC)](https://www.zero.xyz/c/email-deliverability-audit-spf-dkim-dmarc-537b55b5/llms.txt): $0.003/call via x402. Audits a sending domain's SPF, DKIM, and DMARC DNS records to assess email deliverability health
- [Domain Age & Registrar Lookup via RDAP](https://www.zero.xyz/c/domain-age-registrar-lookup-via-rdap-b00f7f69/llms.txt): $0.003/call via x402. Returns a domain's registration date, age in days, and registrar information using RDAP protocol lookup
- [JWT Decoder with Safety Flags](https://www.zero.xyz/c/jwt-decoder-with-safety-flags-5b0d793a/llms.txt): $0.001/call via x402. Decodes a JWT token's header and payload and returns safety flags (expired, alg:none, weak algorithm, missing exp) without verifying the signature
- [SHA-256/384/512, Hex, Base64, Base64URL & CRC32 Hash Tool](https://www.zero.xyz/c/sha-256-384-512-hex-base64-base64url-crc32-hash-tool-9a67b606/llms.txt): $0.0005/call via x402. Computes SHA-256, SHA-384, SHA-512 hashes, hex encoding, base64, base64url, and CRC32 checksum of a UTF-8 input string in a single call
- [Coinbase Crypto Price with Spread](https://www.zero.xyz/c/coinbase-crypto-price-with-spread-77d925c8/llms.txt): $0.002/call via x402. Returns Coinbase spot, buy, and sell prices for a cryptocurrency pair along with the spread percentage
- [JSON Flatten & CSV Converter](https://www.zero.xyz/c/json-flatten-csv-converter-8284294d/llms.txt): $0.001/call via x402. Flattens a nested JSON object into dot-notation paths or converts JSON row arrays to CSV format
- [Batch Random ID Generator (UUIDv4, UUIDv7, ULID, NanoID)](https://www.zero.xyz/c/batch-random-id-generator-uuidv4-uuidv7-ulid-nanoid-de6ed2d5/llms.txt): $0.0005/call via x402. Generates a batch of random unique identifiers in your choice of format: UUIDv4, UUIDv7, ULID, or nanoid
- [tools/weather (open-meteo)](https://www.zero.xyz/c/tools-weather-open-meteo-6b2b79de/llms.txt): $0.001/call via x402. Returns current weather conditions plus hourly temperatures for the next 3 hours, powered by open-meteo
- [Unicode Slug Generator (Latin + Cyrillic Transliteration)](https://www.zero.xyz/c/unicode-slug-generator-latin-cyrillic-transliteration-ec9f845d/llms.txt): $0.001/call via x402. Converts any Unicode text (including Cyrillic) into a URL-safe, lowercase slug via transliteration
- [Cold Email Grader](https://www.zero.xyz/c/cold-email-grader-c8065794/llms.txt): $0.005/call via x402. Scores a cold email across 12 dimensions and returns actionable fix suggestions
- [Sigtap Cold Email Template Generator](https://www.zero.xyz/c/sigtap-cold-email-template-generator-64009880/llms.txt): $0.01/call via x402. Returns a personalized cold email draft generated from proven outreach templates

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)