Charlie Base USDC Settlement Auditor
Inspect a Base native-USDC EIP-3009 settlement: decode authorization calls, bind receipt logs, check historical nonce state and compare expected terms. Informational evidence, not proof of delivery or a security guarantee. 0.01 USDC on Base per call. POST JSON; see /guide and /example.
1 route settlement-verified · $0.01 USDC/request · 1 endpoint · Verification · base network · x402 protocol
Verified routes
POST /v1/audit {tx_hash: our 31 Oct canary tx 0x2dce30c0..}· $0.01 · Verified with a $0.01 test payment on 1 Nov 2026 · receipt
Other routes are unverified.
Networks: Base (settlement-verified)
Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.
url https://payapi.market/mcpListing facts
- Provider
- Charlie Base USDC Settlement Auditor
- Hosted at
charlie-base-usdc-auditor.onrender.com- Category
- Verification
- Price
- $0.01 USDC per request
- Payment networks
- Base
- Settlement-verified
- 1 route, last checked 2026-11-01
- Listed on PayAPI Market
- 2026-11-01
Try Charlie Base USDC Settlement Auditor
Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.
curl -i -X POST "https://charlie-base-usdc-auditor.onrender.com/v1/audit {tx_hash: our 31 Oct canary tx 0x2dce30c0..}"About this API
Charlie Base USDC Settlement Auditor is listed in the Verification category with pricing at $0.01 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-11-01. View receipt on Basescan.
Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.
This API exposes 1 endpoint.
Questions about this API
What does Charlie Base USDC Settlement Auditor do?
Inspect a Base native-USDC EIP-3009 settlement: decode authorization calls, bind receipt logs, check historical nonce state and compare expected terms. Informational evidence, not proof of delivery or a security guarantee. 0.01 USDC on Base per call. POST JSON; see /guide and /example. It is provided by Charlie Base USDC Settlement Auditor.
How much does Charlie Base USDC Settlement Auditor cost?
Charlie Base USDC Settlement Auditor is priced at $0.01 USDC per request, paid per call with no subscription. Verified with a $0.01 test payment on 1 Nov 2026. The exact amount for each call is in the HTTP 402 response before any money moves.
Do I need an API key or account to use Charlie Base USDC Settlement Auditor?
No. Charlie Base USDC Settlement Auditor uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.
Has Charlie Base USDC Settlement Auditor been verified?
Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-11-01.
How does an AI agent find Charlie Base USDC Settlement Auditor?
Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.
More Verification APIs · Browse the marketplace · List your own API
Related APIs
- Agent Tool Result Contract Validator · 1 route verified · Deterministic validation for Agent Tool Result Envelope v1.0. Returns normalized JSON contract errors for MCP and agent-tool tests.
- VYTREL Public HTTPS URL Proof · 1 route verified · Public HTTPS URL preflight returning observed HTTP status, redirects, latency, content type and sampled-content SHA-256 up to 64 KiB. Not a signed attestation or mailbox validation.
- Australia Climate Disclosure Coverage Check (AASB S2) · 1 route verified · Checks if an Australian entity is in Group 1, 2 or 3 for mandatory climate reporting (AASB S2). Returns JSON with group, reasons and first reporting year. General information, not legal advice.
- SB 253 Coverage Check (California climate disclosure) · 1 route verified · Checks if a U.S. company is likely covered by California SB 253 (and SB 261). Returns a JSON verdict, plain-English reasons and a CARB link. General information, not legal advice.
- DevX Token Check · 1 route verified · Token safety verdict before an agent buys or accepts a token: honeypot / sell simulation, owner privileges, mint/blacklist/pause functions, liquidity and holder concentration on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana. Verdict + reasons. Accepts x402 v1 and v2 clients.
- DevX Address Poisoning Check · 1 route verified · Pre-send address-poisoning check for agents and wallets: pass from (sending wallet) and to (recipient). Scans the sender's real on-chain history (Ethereum, Base, optional Avalanche) and flags lookalike recipients (same first/last hex chars as a real counterparty), zero-value / dust / fake-token poisoning transfers with tx hashes, and bad EIP-55 checksums. Verdict ok|caution|danger plus the address you probably meant. Free offline lookalike check at /api/basic. Accepts x402 v1 and v2 clients.