Bookproof
bookproof-api.sn95wjq846.chatgpt.site · 1 paid endpoint · listed 2026-10-27
Read-only Polymarket market health: resolves a full Polymarket URL, slug, token ID, or search phrase, then returns spread, 1/2/5 cent depth, imbalance, fee schedule, and book freshness.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | bookproof-api.sn95wjq846.chatgpt.site/api/v1/market-health Read-only Polymarket market health: resolves a full Polymarket URL, slug, token ID, or search phrase, then returns spread, 1/2/5 cent depth, imbalance, fee sche | $0.005 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 36 h ago | bookproof-api.sn95wjq846.chatgpt.site/api/v1/market-health | 402 | 344 | valid x402 v2 terms |
| 7 days ago | bookproof-api.sn95wjq846.chatgpt.site/api/v1/market-health | 402 | 590 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| No USDC received on Base in the last 7 days (or the payout address is on another network). | |||
Is this your API?
<a href="https://logicnodes.io/observatory/p/bookproof-api.sn95wjq846.chatgpt.site"><img src="https://logicnodes.io/observatory/badge/bookproof-api.sn95wjq846.chatgpt.site.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/bookproof-api.sn95wjq846.chatgpt.site