Open Credit · PriorsCreditOracle · OpenCreditVault

Priors as the credit oracle other lenders read

A credit score is infrastructure when someone who did not build it lends on it. PriorsCreditOracle turns an agent’s live Priors record into a tier, a bounded unsecured cap and a rate, readable by any contract in one call. OpenCreditVault is a second lender, deliberately unrelated to the Priors pool: no sponsor, no collateral, no relationship. It asks the oracle and lends on the answer. The Agent Credit Desk prices three products off the Bureau; this page is the lending half of the same claim.

follow an agent

agent #465, as requested

Bureau report →/api/open-credit/agent/465

deployed on chain 4663deployed at block 79,251,494 by 0xB731...d316 · read at block 86,143,828

/api/open-credit

PriorsCreditOracle

oracle

0x17934ec1...0242661c

block 79,251,481 · deploy tx

OpenCreditVault

lending

0xE14fb6b2...8E32411B

block 79,251,494 · deploy tx

bureau signer 0xa8dA07...f10029 (overlay facts only; it never sets tier, cap or rate) · oracle owner 0xB731...d316 · vault owner 0xB731...d316 (pause only; no admin path to funds)

the claim, filled from chain 4663

Ask the oracle about Agent #465 and it answers Diamond: unsecured credit up to $500.00 at 6% a year.

That is getCredit(465) on 0x17934e...42661c at block 86,144,006 (score 51, 407 Priors loans, 108 $d). The claim - “another lender that never met this agent just lent it $X, on Priors’ word alone” - is not true yet for this agent: 0xE14fb6...32411B has not lent it anything, so there is no $X to fill in.

no loan yet - the vault is waiting for its first borrowerloansOf(#465) is empty · block 86,144,006

1 · how the vault decided

Agent #465, step by step

every step an event the vault emitted or a read at the stated block

agent #465 on the vault · block 86,144,006outstanding $0open loans 0uncured defaults 0cures 0loans here 0

no loan yet loansOf(465) is empty, so the only step is the oracle’s answer now. The vault is waiting for its first borrower.

1What the oracle says nowgetCredit · block 86,144,006
tier Diamond (code 5) · score 51 · enrolled true · defaulted false
unsecuredCap $500.00 = min(tierCap $500.00, max(line $5.00, totalBorrowed $2,701)) · rate 6% a year
407 loans taken · 108 $d · no Bureau overlay posted (the overlay never changes tier, cap or rate)
2What the lenders gotLP effect
no settlement yet: nothing has been paid into the vault above principal for this loan
before borrow
-
at borrow
-
before settle
-
at settle
-
now
$1.000657
block 86,144,006
USDG 6dp per 1.000000000 oCREDIT · convertToAssets(1e9) by eth_call at the stated block, pinned in the cache once read. The public chain-4663 node serves historical state only for its most recent few thousand blocks (minutes at ~0.1 s blocks); a null means that block left the window before this app first read it, not that the price was zero. The settlement figures come from the event and never expire.

2 · the oracle feed

What PriorsCreditOracle answers right now

tier, cap and rate are computed on chain from CreditLensV2; the Bureau overlay never changes them

live tiers of these 12 agentsUnbanked0Bronze1Silver0Gold0Platinum0Diamond11

getCredit for 12 agents · tier then score · block 86,143,759 · Bureau tier from a live report pull (its own policy)

agent	oracle tier	score	unsecured cap	rate	loans taken	dollar-days	line · lifetime	overlay as-of	Bureau tier
#466	Diamond	57	$500.00	6%	560	161.7 $d	$9.70 · $5,019	not posted	A310 repaid · 100% punctual
#467	Diamond	57	$500.00	6%	555	161.6 $d	$9.70 · $4,975	not posted	A308 repaid · 100% punctual
#468	Diamond	57	$500.00	6%	553	164 $d	$9.70 · $4,966	not posted	A309 repaid · 100% punctual
#469	Diamond	53	$500.00	6%	553	121.2 $d	$5.00 · $4,217	not posted	A309 repaid · 100% punctual
#491	Diamond	53	$500.00	6%	404	144.3 $d	$9.70 · $3,294	not posted	A310 repaid · 100% punctual
#494	Diamond	53	$500.00	6%	402	145.7 $d	$9.70 · $3,272	not posted	A306 repaid · 100% punctual
#495	Diamond	53	$500.00	6%	406	145.6 $d	$9.70 · $3,309	not posted	A312 repaid · 100% punctual
#497	Diamond	53	$500.00	6%	408	146.7 $d	$9.70 · $3,333	not posted	A313 repaid · 100% punctual
#502	Diamond	53	$500.00	6%	403	145.4 $d	$9.70 · $3,269	not posted	A309 repaid · 100% punctual
#503	Diamond	53	$500.00	6%	403	143.4 $d	$9.70 · $3,243	not posted	A308 repaid · 100% punctual
#504	Diamond	53	$500.00	6%	405	142 $d	$9.70 · $3,296	not posted	A310 repaid · 100% punctual
#7616	Bronze	17	$5.00of $25.00	24%	1	0.1 $d	$5.00 · $5.00	block 79,251,624	C1 repaid · 100% punctual

published ladder · policy · tierTerms / tierRule / tierName on 0x1793...661c · block 86,136,098

tier	cap ceiling	rate / year	min score	min loans taken	min dollar-days
Unbanked	no credit	-	-	-	-
Bronze	$25.00	24%	1	-	-
Silver	$50.00	18%	20	5	-
Gold	$100.00	12%	20	20	60 $d
Platinum

reading getCredit for the top agents and pulling a Bureau report for each (a few seconds on a cold cache)…

What getCredit(agentId) enforces: the tier is tierOf(score, loansTaken, dollarDays, enrolled, defaulted) over the live lens record, cumulative thresholds published as constants; the cap a lender may extend is capFor(tier, line, totalBorrowed) = min(tier ceiling, max(live Priors line, lifetime Priors principal)), so a one-loan identity is bounded by what it has actually borrowed. The Bureau overlay (post(fact, sig), EIP-712, strictly newer asOfBlock only, checked against the chain’s own block height chainBlockNumber() from ArbSys, not the parent-chain block.number) adds demonstrated capacity, repaid loans and punctuality to the answer and is shown with its block; it is never an input to tier, cap or rate. The Bureau tier column is the Bureau’s own off-chain policy, shown for comparison - the two ladders are separate policies and need not agree.

3 · the second lender

OpenCreditVault: its book, its loans, its ledger

ERC-4626 over USDG · oCREDIT shares

live on chainOpenCreditVault0xE14fb6...32411Bblock 86,143,828lending

NAV

$2.50

totalAssets() = idle + live principal + accrued

idle liquidity

$2.50

lendable or withdrawable · idleLiquidity()

live principal

0 active loans in NAV · liveBook()

accrued interest

linear, inside NAV · liveBook()

past grace

carried at zero · liveBook()

principal outstanding

Active loans, overdue included

interest earned

$0.001643

collected · interestEarned()

late fees earned

collected on cures · lateFeesEarned()

bad debt

gross · $0 recovered · net $0

exit price

$1.000657

USDG per 1 oCREDIT redeemed · convertToAssets(1e9)

entry price

$1.000658

USDG per 1 oCREDIT minted · previewMint(1e9) on entryAssets() $2.50

shares outstanding

2.5 oCREDIT

totalSupply() · 9 decimals

loans

ever issued · loanCount()

LP return since the first deposit, from the share price - not an APY

0.0657%

annualised over 8.17 days: 2.94%

collected net of write-offs: $0.001643

convertToAssets(1e9) / 1 USDG - 1 at pulledAtBlock: the change in one oCREDIT's exit value since the first deposit minted it at 1 USDG, net of write-offs and of loans carried at zero, including interest accrued on live loans. Annualised linearly over the time since the first Deposit event, and only once that is at least MIN_ANNUALISE_SECONDS (display policy). Backward-looking; not an APY, not a forward yield. Collected net of write-offs = interestEarned + lateFeesEarned - (badDebt - recovered). First deposit: $2.50 by 0xB731...d316 at block 79,253,572 (tx).

loans · newest 1 of 1 · block 86,143,927

loan	agent	tier at underwriting	principal	rate	started	due	interest paid	recipient	status
#1	#7616	Bronze	$2.50	24%	8d ago	7d ago	$0.001643	0x2219...2bCB	repaid

6 events · blocks 79,251,481 to 86,143,763 · eth_getLogs over the oracle and the vault, newest first

when	contract	event	agent	loan	counterparty	amount	tx
8d ago	vault	Repaid	#7616	#1	0xB731...d316	$2.50principal	0x1d04b862...0267f6
8d ago	vault	Borrowed	#7616	#1	0x2219...2bCB	$2.50principal	0x8fce8008...69fcd7
8d ago	vault	Underwritten	#7616	#1	-	$5.00cap answered	0x8fce8008...69fcd7
8d ago	vault	Deposit	-	-	0xB731...d316	$2.50assets	0x65d84574...b58d00
8d ago	oracle	FactPosted	#7616	-	0xa8dA...0029	$5.00overlay capacity	0xc66d3410...0ef4c8
8d ago	oracle	BureauSignerChanged	-	-	0xa8dA...0029	-	0x550ce0f3...a56622

vault policy · public constants of 0xE14f...411B · block 86,136,098

GRACE	3 d	after dueAt; past it a loan is defaultable and carried at zero in NAV
LATE_FEE_BPS	100 bps (1% of principal)	charged on top of interest to cure a written-off loan
MIN_PRINCIPAL	$1.00	smallest loan borrow() accepts
MIN_TERM_DAYS · MAX_TERM_DAYS	1 · 30 d	term range of borrow()
MIN_INTEREST_PERIOD	1 d	interest is charged for at least this long at repayment
MAX_OPEN_LOANS_PER_AGENT	4	open loans one agent may hold here
MAX_ACTIVE_LOANS	128	active loans across the vault (bounds the NAV walk)
SHARE_DECIMALS_OFFSET	3 (oCREDIT has 9 decimals)	virtual-share offset against donation griefing
YEAR · BPS	31,536,000 s · 10000	annualisation base of rateBps

interest = principal x rateBps x max(elapsed, MIN_INTEREST_PERIOD) / (YEAR x BPS)

totalAssets = idle USDG + principal and linearly accrued interest of Active loans not yet past dueAt + GRACE; loans past that are carried at zero whether or not markDefault was called

entry price (contract rule, policy): deposit / mint are priced at entryAssets = totalAssets + overdue principal + (badDebt - recovered), the owed principal at face; withdraw / redeem at totalAssets. Equal while nothing is overdue or uncured; a deposit placed just before a recovery buys that principal at face, so the recovery goes to the LPs who carried the loss

public constants and immutables of PriorsCreditOracle and OpenCreditVault, read by eth_call; policy, not market data

What borrow(agentId, amount, termDays) enforces: the caller controls the agent (its ERC-8004 owner or its Priors pool delegate) and the USDG always goes to identity.ownerOf(agentId); the oracle’s tier is above Unbanked, the agent carries no Priors default flag and no uncured default here; the amount is at least the minimum principal, keeps the agent’s outstanding within its bounded cap, fits the open-loan and active-loan limits and the idle liquidity; the term is in range. The rate is the oracle’s, frozen at underwriting. repay(loanId) charges simple interest for the time held (at least the minimum interest period); after dueAt + GRACE anyone may markDefault, and a written-off loan can still be cured through repay with a late fee. Every limit is a public constant, listed above as policy once the vault is deployed.

4 · integrate

One call from any contract

import {IPriorsCreditOracle} from "./IPriorsCreditOracle.sol";

IPriorsCreditOracle.CreditFact memory f =
    IPriorsCreditOracle(0x17934ec19c01C1C0c758f4dB96b6bbbE0242661c).getCredit(agentId);

// f.tier (0 Unbanked .. 5 Diamond), f.unsecuredCap (USDG 6dp),
// f.rateBps (annual), f.defaulted, f.score - all live from CreditLensV2
require(f.tier > 0 && !f.defaulted, "no unsecured credit");
require(amount <= f.unsecuredCap, "over the oracle's cap");

The interface ships with the contracts (contracts/src/open-credit/IPriorsCreditOracle.sol). getTier(agentId) is the one-word version; tierTerms / tierRule / capFor expose the policy.

no key, no SDK

Or read it over HTTP / JSON-RPC

# vault overview, published policy, oracle feed
curl -s https://priors-app-xi.vercel.app/api/open-credit

# one agent: oracle fact, vault ledger, every loan, the step list
curl -s https://priors-app-xi.vercel.app/api/open-credit/agent/465

# straight from the chain (Foundry cast)
cast call 0x17934ec19c01C1C0c758f4dB96b6bbbE0242661c "getTier(uint256)(uint8)" 465 \
  --rpc-url https://rpc.mainnet.chain.robinhood.com

Every response carries the block it was read at; bigints are strings. While the contracts are not deployed the API answers { deployed: false } with status 200 - the honest state, not an error.

5 · be the next lender or borrower

Wallet console

simulate first, then sign in your own wallet

Wallet console

No EIP-1193 wallet is injected in this browser, so nothing can be signed here. Install a wallet and point it at chain 4663. The vault is 0xE14fb6b2C1c7887c56FE09a5509cB3218E32411B and the oracle 0x17934ec19c01C1C0c758f4dB96b6bbbE0242661c; their functions are the same from any signer.

the same limit, spent · Priors Card

Every identity the oracle gives a limit carries a card: PriorsPay.swipe pays an x402 merchant in the same transaction and the agent settles later. The card and this vault share one unsecuredCap.

Priors Card →