SYNTHORA x402 Registry Watch

https://regwatch.hergertsynthora.com/service

● healthy model-context-protocol-mcp

skills: {'id': 'registry_feed', 'name': 'x402 registry delta feed', 'description': 'Returns signed deltas of the x402/A2A registry since a cursor: endpoint discovery, payTo address changes, new and removed listings, price moves and uptime state. Body: {since, slug, limit<=200}.', 'tags': ['x402', 'discovery', 'registry', 'crypto', 'onchain', 'monitoring', 'payments'], 'examples': ['POST https://regwatch.hergertsynthora.com/service with body {"since":"2026-07-01","limit":50}'], 'input_modes': ['application/json'], 'output_modes': ['application/json']}; conformance: fail

Quality grade

How grading works

B+ 80.4 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 402)

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 20.4 / 40

26 distinct payers, 198 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 21 h ago. On-chain activity last read 12 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://regwatch.hergertsynthora.com/service  # expect HTTP 402 Payment Required (about 0.05 USDC/call)

MCP endpoint

https://regwatch.hergertsynthora.com/service

/.well-known/x402.json

https://regwatch.hergertsynthora.com/.well-known/x402

Listed in

Directories this entry was found in.

mcp