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sigtap Outreach API

https://sigtap-outreach-api.sigtap.workers.dev/deliverability
● down ai

Paid micro-utilities for cold-email outreach agents: domain deliverability audits, cold-email grading, template generation, plus a tools toolbox (hashing, JWT decode, IDs, slugs, JSON, regex, crypto prices, domain age, weather). Paid via x402 (USDC on Base). One signature per call. No keys. FREE CHECK: GET /preview/<paid-path> (same URL with /preview/ prefix) returns a 200 demo sample - verify ...

Category
ai
Chains
base, eip155:8453
Price
$0.0005–$0.0100 USDC

Quality grade

How grading works
D 33.8 / 100 capped at D while down
Availability 0.0 / 40
Endpoint did not respond
Payability 20.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 13.8 / 40
4 distinct payers, 186 USDC transfers in the last 30 days
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 7 h ago. On-chain activity last read 11 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

12 resource(s) advertised by this origin.

https://sigtap-outreach-api.sigtap.workers.dev/deliverability
https://sigtap-outreach-api.sigtap.workers.dev/grade
https://sigtap-outreach-api.sigtap.workers.dev/template
https://sigtap-outreach-api.sigtap.workers.dev/tools/crypto-price
https://sigtap-outreach-api.sigtap.workers.dev/tools/domain-age
https://sigtap-outreach-api.sigtap.workers.dev/tools/hash
https://sigtap-outreach-api.sigtap.workers.dev/tools/json
https://sigtap-outreach-api.sigtap.workers.dev/tools/jwt-decode
https://sigtap-outreach-api.sigtap.workers.dev/tools/regex
https://sigtap-outreach-api.sigtap.workers.dev/tools/slug
https://sigtap-outreach-api.sigtap.workers.dev/tools/uuid
https://sigtap-outreach-api.sigtap.workers.dev/tools/weather

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://sigtap-outreach-api.sigtap.workers.dev/deliverability
/.well-known/x402.json
https://sigtap-outreach-api.sigtap.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

x402scan