Sourcelane is the trust and payment layer for AI agents that pay for data and tools over x402 — no wallets, no chains, no seed phrases. Top up with Stripe, set spend caps, and get an itemised receipt for every call.
No crypto exposure for you or your agent — balances are USD, top-ups run through Stripe.
# the agent calls one normalized endpoint
POST /v1/call
Authorization: Bearer sl_live_••••••••••••••••••••••••••••
{
"listing": "global-weather-now",
"params": { "city": "Austin" }
}
# itemised receipt comes back on the response
{
"requestId": "req_8fK…",
"data": { /* upstream JSON, verbatim */ },
"receipt": {
"chargedMicros": 2000,
"balanceAfterMicros": 9998000,
"latencyMs": 412,
"x402": { "network": "base", "simulated": true }
}
}Connectors
Plug them into Claude, ChatGPT, Cursor or your own code in one click.
Four steps between a credit card and a paid API call.
Stripe checkout, no crypto onramp. Funds land as a USD balance in seconds.
Daily limit, monthly limit, max per-transaction size, and an allowlist or open access — per agent, not per account.
One normalized POST /v1/call across every listed provider. Payment settles over x402 under the hood.
Price, latency, balance after, and the settlement reference — for every single call, success or refund.
Everything the raw payment rail leaves you to build yourself.
Top up with a card. Sourcelane holds the balance as USD platform credit and handles the x402 payment leg for you — you never touch a wallet, a chain, or a seed phrase.
Daily and monthly limits, a max transaction size, an endpoint allowlist, and a kill switch that takes effect immediately. A looping or compromised agent can't drain your balance.
Every endpoint is test-called before it goes live: does it respond, does payment settle, does the response match the schema it advertises.
Health checks run continuously. p50/p95 latency and uptime are on every listing before you spend a cent, not after.
Only an account with a real, paid call on a listing can review it. No day-one astroturfing.
Calls are reserve-then-settle: your balance is only finalized on a successful response. Upstream errors, timeouts, and failed payments are refunded automatically.
x402 is a payment rail. It doesn't decide who to trust, how much to spend, or what happens when a call fails.
You can integrate x402 endpoints yourself — hold USDC, pick a chain, vet every provider by hand, and write your own retry/refund logic. Sourcelane is what we built on top so an agent-building team doesn't have to.
| Capability | Sourcelane | DIY on raw x402 |
|---|---|---|
| Fund with a card, no wallet setup | ✓ | — |
| One request shape across every provider | ✓ | — |
| Per-agent budgets, allowlists, kill switch | ✓ | — |
| Endpoints test-called before they're listed | ✓ | — |
| Uptime and latency published per listing | ✓ | — |
| Reviews gated behind a real, paid call | ✓ | — |