Provider trust center

Prove that agent API calls were paid, signed and ready to fulfill.

Arc Provider closes the loop between Marketplace and Proof: API providers get a live receipt registry, signing-key surface, fulfillment evidence and direct links to every policy chain and Arc settlement evidence when configured.

Creates a signed x402 receipt and opens its proof.
Open proof archive Run workflow
Providers paid2Across recent agentic workflows
Signed receipts11x402-style provider receipts
Settlement proofs11With Arcscan tx when configured
Recorded value0.087 USDCIn recent proof history
Provider onboarding

From API listing to proof-backed paid access.

01Create API listingProvider defines endpoint, SLA, category and verification requirements.
02Set priceUSDC price, quota and prepaid balance rules become part of the offer.
03Publish x402 offerMarketplace exposes a signed machine-readable offer for agents.
04Agent buys accessTreasury, Shield, Reputation and Interop gates run before fulfillment.
05Receipt appears in ProofProvider signature, settlement evidence and validation artifacts become reviewable.
Signing keys

Provider keys visible before fulfillment.

provider_key_f1030930ed25519-provider-sim · rotation slot 01 · 10 receiptsactive
provider_key_f4030de9ed25519-provider-sim · rotation slot 02 · 1 receiptsactive
Fulfillment policy

Serve only after receipt verification.

Offer signedMarketplace price, API terms and capability are hashed before the agent authorizes spend.
Budget lockedTreasury confirms budget, reputation threshold and policy limits before provider fulfillment.
Receipt signedProvider signs the receipt payload with a visible key id and settlement evidence.
Proof linkedThe proof URL links policy chain, receipt, settlement hash and reputation update.
Receipt registry

Recent paid jobs providers can reconcile.

APIProviderReceiptSettlementProof
Realtime Price Feedflow_agentic_e1508e0e0303
ChainData Labsprovider_key_f1030930
0x95f1de...11a5c
0.003 USDC0x159b06...a013a
View
GPT-4o Proxyflow_agentic_01a50e12e6c4
ModelStackprovider_key_f4030de9
0x0143f6...9aac3
0.003 USDC0x412105...d733b
View
Realtime Price Feedflow_agentic_4e419f81d3a5
ChainData Labsprovider_key_f1030930
0x6f4724...5b237
0.003 USDC0x6b4398...926bc
View
Realtime Price Feedflow_agentic_13e87b865ecf
ChainData Labsprovider_key_f1030930
0xb0221e...dcd43
0.003 USDC0x2cf6af...babf4
View
Realtime Price Feedflow_agentic_2dc8d65e5529
ChainData Labsprovider_key_f1030930
0x8bde6f...21611
0.003 USDC0xa16e5d...0605d
View
Realtime Price Feedflow_agentic_3b8d15529a86
ChainData Labsprovider_key_f1030930
0x8a11d8...2f850
0.012 USDC0x84de21...3a921
View
Realtime Price Feedflow_agentic_cf11e7cb09cb
ChainData Labsprovider_key_f1030930
0x010ebf...51cb8
0.012 USDC0x84de21...3a921
View
Realtime Price Feedflow_agentic_0017415e7ed3
ChainData Labsprovider_key_f1030930
0x2bab0d...f4791
0.012 USDC0x84de21...3a921
View
Realtime Price Feedflow_agentic_e029d853e33c
ChainData Labsprovider_key_f1030930
0xcabb3c...0ab9e
0.012 USDC0x84de21...3a921
View
Realtime Price Feedflow_agentic_22997b518221
ChainData Labsprovider_key_f1030930
0xc14120...16939
0.012 USDC0x84de21...3a921
View
Realtime Price Feedflow_agentic_dc3d401c5427
ChainData Labsprovider_key_f1030930
0x44a7ea...c90e8
0.012 USDC0x84de21...3a921
View

Arc Marketplace

Providers can publish APIs and prove each paid request without a separate account system.

Arc Billing

Usage, receipts and invoices can share the same receipt digest and settlement id.

Arc Proof

External reviewers can verify the receipt, policy chain and settlement evidence from one URL.