Will this agent deliver?
Know before you pay.
FlexTrust scores every AI agent 0–1000 from public on-chain evidence, under a fully published methodology — queryable by humans, APIs, and the agents themselves. $0.005 an answer (net, VAT on top by location), no account required.
The gap
Moving money between agents is solved.
Deciding whether to move it is not.
Settled — infrastructure now
- Rails. x402, AP2, AP4M — the world's largest payment networks standardized how agents pay. Rails are commoditized.
- Identity. ERC-8004 gives agents on-chain identity, reputation and validation registries — and deliberately leaves scoring to an ecosystem.
Open — nobody's layer
Trust
Permission to spend says nothing about whether an agent delivers. Pricing that risk is FlexTrust.
The thesis
Scores agents, not chains.
Consumer credit became an industry when lending was about to scale and no standard risk primitive existed. Agent commerce is at that point now. We index the evidence while it's young, publish the methodology so it can be trusted, and let the file compound — chains are merely the first furnisher. Off-chain activity follows the same way it reached the credit bureaus: counterparties who observe it attest to it, weighted by their own trust.
The furnishers feeding the file today — platforms whose agents we index, counted from our own index and refreshed hourly.
Read a real file
Every agent has a public file. Rounded, free, updated daily.
erc8004:1:31921
ethereum · token #31921
| Factor | Weight | Evidence | Strength |
|---|---|---|---|
| settlement | 30% | 0 | no evidence |
| reputation | 25% | 1 | strong |
| validation | 20% | 0 | no evidence |
| attested | 15% | 0 | no evidence |
| identity | 10% | 1 | strong |
Public view: score rounded to the nearest 25, updated daily, factor strengths qualitative. Exact real-time scores with confidence and numeric factor contributions come from the API and MCP tools. Method fully published on the methodology page.
Two grades of answer
The rounded answer is free.
The exact one is $0.005 net.
Public scores are rounded to the nearest 25, refreshed daily, with qualitative factor strengths — enough to browse, embed and sanity-check, for free and without an account. Exact real-time scores, confidence intervals and numeric factor contributions are what you pay for, three ways.
Explorer & badges
The free grade: score rounded to the nearest 25, updated daily, factor strengths qualitative. Browse every agent, embed a live badge anywhere. No account.
<img src="https://flextrust.io/agents/53/badge.svg"
alt="FlexTrust Score" width="170" height="44">
Pay-per-answer
The exact grade, one answer at a time: real-time score, confidence, numeric factor contributions. Your agent gets a 402 invoice, signs a USDC voucher, gets the payload. No signup, no card.
# no account, no card: the 402 IS the invoice
curl .../api/v1/scores/erc8004:8453:60989
→ HTTP 402 { "accepts": [{ "scheme": "exact", "amount": "6000",
"asset": "USDC", "payTo": "0x..." }] }
Link: ; rel="terms-of-service" · X-FlexTrust-Terms: 1.0
(amount = net $0.005 + VAT for your location; 5000 outside the EU)
# sign an EIP-3009 transfer authorization for that amount (x402 client
# SDKs do this in one call), retry with the X-PAYMENT header
→ HTTP 200 + score payload + "receipt": { number, amount, vat, purpose,
settlement, terms } · X-FlexTrust-Receipt: /api/v1/payment_receipts/rcpt_…
settlement lands on-chain; the receipt stays retrievable at that address
Query packs
The exact grade in bulk: pay once for prepaid answers with a volume bonus, plus an API key — 13 ms responses with no payment round-trip.
# one x402 payment buys a prepaid pack + an API key for your wallet
POST /api/v1/credits?usd=10
→ 402 (pay $10 over x402, same flow as above; pack prices are net, no VAT at purchase)
→ { "units_granted": 2100, "bonus_percent": 5,
"api_key": "ft_..." } # shown exactly once
# then query at full speed — no payment round-trip per call:
curl -H "X-Api-Key: ft_..." .../api/v1/scores/{identifier}
MCP-native
The same exact payload inside your agent's own tool loop — check_counterparty returns proceed, caution or unknown in one call. One unit per answered call, zero integration project.
# MCP endpoint: /mcp (HTTP + SSE transports) # tools/call needs an API key (X-Api-Key or Authorization: Bearer); # discovery (initialize, tools/list) is open. Cost per answered call: tools: get_agent_score # full payload · 1 unit explain_score # payload + methodology context · 1 unit check_counterparty # proceed / caution / unknown, one call · 1 unit list_top_agents # the leaderboard · 1 unit score_guidance # what evidence would improve a score · 1 unit issue_trust_receipt # EIP-712 attestation bound to a signed message · 10 units verify_trust_receipt # verify a receipt id, artifact or FTR1 string · free, no key register_anchor # reserve a credit file by proving key control · free, no key
Trust receipts
A signature that carries its standing.
When an agent signs a commitment — an LOI, a bid, a delivery promise — FlexTrust can countersign what it knew about the signer at that moment: score, band, confidence, evidence tier, methodology, with a Merkle proof against that day's published commitment. Never the content. A bank officer, an insurer, a counterparty's agent verifies it in seconds, free, offline if they like. A promise from a rated party is worth more; now the rating travels with the promise.
$0.05 per receipt (net, VAT on top by location), paid by the presenter over x402, from prepaid units, or in the console. Verification is free. Verify a receipt · Read the spec · see FlexTrust's own first receipt (we are agent #84702 on Base; a receipt attests its commitment day and stays verifiable after — this one shows what "expired" looks like, honestly).
Coverage
Registration is identity. Settlement is the economy.
| Chain | Registered agents | Settlements | Feedback | Read |
|---|---|---|---|---|
| Base | 588,230 | Where the agent economy actually settles | ||
| Bnb | 606 | Where the agent economy actually settles | ||
| Ethereum | 31,139 | Registrations without commerce, so far | ||
| Abstract | 97 | Registrations without commerce, so far | ||
| Megaeth | 23 | Registrations without commerce, so far | ||
| Robinhood | 1,226 | Registrations without commerce, so far | ||
| Celo | 15,148 | Where the agent economy actually settles | ||
| Gnosis | 4,341 | Registrations without commerce, so far | ||
| Xlayer | 10,892 | Registrations without commerce, so far | ||
| Optimism | 341 | Registrations without commerce, so far | ||
| Arbitrum | 966 | Where the agent economy actually settles | ||
| Monad | 258 | Registrations without commerce, so far | ||
| Linea | 27 | Registrations without commerce, so far | ||
| Scroll | 1 | Registrations without commerce, so far | ||
| Avalanche | 1,777 | Registrations without commerce, so far | ||
| Polygon | 314 | Where the agent economy actually settles |
Live counts from our own index, refreshed hourly. The gap between registration and settlement is the story.
How we choose chains: we go where the agents are
FlexTrust covers every chain where the ERC-8004 registries are deployed and agents are actually registering and settling. A weekly census counts the minted agent ids on the canonical registry across 33 chains; a chain joins the index when it carries a population worth scoring, and the score follows the money — not the marketing. If your chain isn't listed above, it is almost always because there are no agents on it yet, not because we won't cover it.
Watched, not yet indexed (registry deployed, counted weekly): Arc (2,541 agent ids) · Mantle (144 agent ids) · Metis (137 agent ids) · Taiko (93 agent ids) · Morph (10 agent ids) · Soneium (0 agent ids) · Hyperevm (0 agent ids) · Ink (0 agent ids) · Flow (0 agent ids). Chains above ~1,000 agents are in the enablement queue.
No registry yet (re-probed weekly; joins the queue the day it deploys): Berachain · Opbnb · Sei · Sonic · Tron · Unichain · Worldchain · Zksync.
Building agents on a chain we don't cover yet? Register them on the canonical registry there — the census will see them — or tell us: hello@flextrust.io. Off-chain agents don't need a chain at all: anchor a key and get a file.
Building in public
Score → escrow → underwrite.
Targets, not promises.
TrustScore
Scores from on-chain evidence, explorer, paid API, MCP, query packs. You are looking at it — every number on this page is live.
Escrow
Stablecoin locked until verified delivery, released by on-chain attestation.
Gated on independent audit
Underwriting
Guaranteed outcomes backed by real collateral — the layer that turns scores into insurance.
Gated on audit, then legal review
Pricing
Honest tiers, honest states.
Explorer
Free
All scores, badges, live metrics. No account.
Live now
Per query & packs
$0.005 net
x402 pay-per-answer, or prepaid packs with volume bonus, prices net of VAT (+5% at $10, +10% at $50, +20% at $250).
Testnet live · mainnet at launch
Volume tiers
from $99/mo net
For platforms and frameworks, prices excl. VAT. Open when they're real, not before.
Waitlist — join below
Volume tiers open when they're real.
Nothing is purchasable until it fully works and its launch is confirmed. Founding partners hear first and talk to us directly. Full pricing →