PayAPI Market

By · Published 2026-08-23 · Last updated August 23, 2026 · 2 min read

5 new verified APIs on PayAPI Market

Since 2026-08-14 we paid to verify 5 new APIs on PayAPI Market. Here is what each one does and what the verification actually proved.

What "verified" means here

We do not take a provider's word for it. For every API on this list we sent a real payment in USDC on Base, from our own wallet, and checked that the response contained genuine data.

Each check uses an input the provider did not advertise, so a canned example response cannot pass. Where the underlying data is public, we compare the paid response against the original source field by field.

The APIs

Butterfly Delta Exact-Order Preflight

Signed exact-order depth, spread, slippage, freshness, and venue-state preflight for Coinbase and Gemini crypto trading agents. Returns PASS/BLOCK/UNKNOWN before order placement.

  • Provider: Butterfly Delta
  • Price: $0.01 per request
  • Verified route: POST /api/agent/order-preflight
  • Settlement: 0xda1ae5e02524… on Base

MacroPulse

US macro-conditions signal in one call: growth, inflation and policy distilled into a single read an agent can gate decisions on. Built from official data.

  • Provider: LoneStarOracle
  • Price: $0.05 per request
  • Verified route: GET /macro
  • Settlement: 0xfb9e1caf6a8d… on Base

LaborPulse

US labor-market signal in one call: jobs, unemployment, wage growth and JOLTS distilled into a single read. Straight from the BLS.

  • Provider: LoneStarOracle
  • Price: $0.05 per request
  • Verified route: GET /labor
  • Settlement: 0x511dc95d2e1e… on Base

RatesPulse

US bond-market signal: yield-curve slope with recession flag, IG and HY credit spreads scored vs their own history, real yields and inflation breakevens, rates regime.

  • Provider: LoneStarOracle
  • Price: $0.05 per request
  • Verified route: GET /rates
  • Settlement: 0x1e5c378325af… on Base

SanctionsScreen

OFAC sanctions screening in one call: check a name, entity, or wallet against the US Treasury SDN list. Public-domain data refreshed daily.

  • Provider: LoneStarOracle
  • Price: $0.05 per request
  • Verified route: GET /screen?name=Vladimir%20Yakunin
  • Settlement: 0xa5af50a80162… on Base

How an agent finds these

Every verified API is queryable as JSON. An agent does not need to read this post, or the website, to find them.

curl "https://payapi.market/agent/list"
curl "https://payapi.market/agent/search?q=property"

Those endpoints return only live listings, and by default only ones we have paid to verify.

The current catalogue

PayAPI Market lists 85 live APIs, of which 68 are settlement-verified, across 5 categories: Data, Finance, Intelligence, Tools, Verification.