Synthex Forge — x402 Paid Agent Services

Turn a deal between two agents into signed, machine-checkable release terms (PAID $0.50) VALUE: Produce the release-terms document for a deal. PRICE: $0.50 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

What does agent A owe agent B, and is the evidence sufficient to settle it? (PAID $0.25) VALUE: Adjudicate what one agent owes another. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Hand a task from one agent to another without losing the thread (PAID $0.10) VALUE: Assess a handoff of task state between two agents. PRICE: $0.10 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Attested Agent Execution — bounded agent run (PAID $1.00) VALUE: One audited agent execution with a cost ledger and a signed result, so the work is reproducible and the spend is attributable. PRICE: $1.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Ebook Download VALUE: The full 121-page book 'x402 — The Agent Economy' — the definitive account of building machine-native services agents pay for, in one file. PRICE: $29.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Mint a signed typed receipt for any transaction or action. VALUE: A signed receipt for an action, mintable as evidence of what happened — a portable 'it did that'. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Assess and attest a financial statement or metrics payload into signed, reproducible evidence. VALUE: Signed, dated financial evidence extracted from a statement — the figure a lender, investor or auditor can rely on without a call. PRICE: $0.35 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed self-contained audit evidence package with a Merkle root (PAID $4.00) VALUE: A single signed package binding artifacts, assertions and attestations for a period — what an auditor asks for, without three weeks of chasing. PRICE: $4.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

MiFID-style best-execution attestation. Returns within_tolerance | outside_tolerance | insufficient_evidence, with the implementation shortfall, the slippage, the gap to every benchmark supplied, the timing risk and a quality grade. Every bps figure is reproducible from the numbers shown. A missing arrival price returns insufficient_evidence — implementation shortfall is undefined without a decision price. VALUE: A MiFID-style best-execution attestation — proof that an order was executed in line with the mandate. Returns the implementation shortfall, the slippage, the gap to every benchmark supplied and a quality grade, with the arithmetic written out so a reviewer can re-derive every figure. No arrival price means no verdict. PRICE: $2.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Budget Preflight VALUE: Whether this call fits the budget, BEFORE you spend — turns a surprise overage into a decision you can make in advance. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

x402 Bureau — full conformance audit of any endpoint (PAID $0.25) VALUE: A full conformance audit of any target endpoint against the x402 standard, every clause, signed and dated — the check a buyer cannot do from the outside. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

x402 Bureau — conformance-check any issuer's receipt/offer (PAID $0.05) VALUE: Independent verification that a receipt is genuine and matches the offer it claims to settle — counterparty-side proof, not your own. PRICE: $0.05 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

x402 Bureau — reputation from signed observation history (PAID $0.10) VALUE: The Verification Bureau's standing reputation read for a subject, from its own corpus — third-party standing you cannot manufacture. PRICE: $0.10 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Compliance Check VALUE: A specific, dated compliance verdict for one described processing activity — the artifact a regulator asks for, not a policy PDF. PRICE: $1.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Containment Register VALUE: A registered, signed containment policy with named emergency contacts — so 'what happens if this agent goes wrong' has an answer that is already signed and enforceable. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed rule-based extraction of the clauses that decide money and liability (PAID $1.50) VALUE: The obligations in a contract as structured, dated data — so compliance is a query, not a re-read of forty pages. PRICE: $1.50 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Dated, signed proof that a document set existed — a Merkle root, the leaves, and a real inclusion proof (PAID $2.00) VALUE: Anchor a document set. PRICE: $2.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Counterparty credit & conduct score from your own observations (PAID $0.50) VALUE: Price the risk of paying an unknown agent, endpoint or host from YOUR OWN observations — a 0-1000 credit and conduct score with the weighted factors behind it, so you price trust before you pay. PRICE: $0.50 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Issue a scoped, expiring, offline-verifiable capability credential (PAID $0.05) VALUE: A scoped, time-limited, signed credential — delegation with an expiry, so access does not have to be revoked by hand. PRICE: $0.05 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

C2Pa Verify VALUE: Whether a media file carries a valid C2PA provenance manifest — the check that separates authentic media from generated media. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Assess whether data is still fresh, undated or conflicting (PAID $0.02) VALUE: Whether a claim's source is still fresh enough for the decision you are about to make — staleness is the failure mode nobody prices in. PRICE: $0.02 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed Snapshot VALUE: A tamper-evident snapshot of a series with its sources and fetch time — a data point you can defend later, not just cite. PRICE: $0.30 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Validate, normalise and mechanically repair a payload against a declared JSON-Schema subset. Repair never fabricates data: a required property with no default is reported missing, not inserted. Keywords outside the supported subset are reported in schema_keys_unsupported rather than silently ignored. VALUE: Coercion and repair of a payload against a schema, with the repairs itemised — malformed input becomes clean input, and every change is on the record. PRICE: $0.02 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed decision attestation with an assurance level and explicit unknowns (PAID $2.50) VALUE: A signed, dated, replayable attestation of a decision and the policy that produced it — the difference between a decision and an accountable one. PRICE: $2.50 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Proof that a digital deliverable arrived and matched what was promised (PAID $0.10) VALUE: A paid service on the x402 rail — the result is worth the call because the same work done by hand costs more time than the price. PRICE: $0.10 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed advisory dispute ruling from a deterministic rubric (PAID $2.00) VALUE: A binding ruling on a dispute from the contract, evidence and policy — so the resolution is a signed artifact, not an argument. PRICE: $2.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Prior-test registry query: what has actually been tested on an instrument/timeframe/strategy-type before, and what the prior evidence says. Every field is optional but at least one must be supplied. VALUE: What has actually been tested on this instrument, timeframe and strategy type before, and what the prior evidence says — so you do not pay to rediscover a known result. PRICE: $0.05 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Is that track record real, or did you find it by looking? (PAID $3.00) VALUE: Whether a claimed edge survives replication on your own returns — the test that separates a real edge from a curve fit. PRICE: $3.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Exact-decimal financial calculation with its published convention (PAID $0.01) VALUE: Exact decimal arithmetic under stated conventions — financial totals that do not drift by a cent when you scale them. PRICE: $0.01 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Seal one signed-attribution / forensics evidence record into a tamper-evident vault entry. VALUE: Sealing one evidence record into a tamper-evident vault entry — chain of custody that survives after the fact. PRICE: $0.20 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Bind sealed forensics-vault entries into ONE signed query receipt. VALUE: Querying that vault by actor or predicate — the retrieval side of evidence you cannot quietly edit. PRICE: $0.15 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

The institutional tearsheet, reproducible: every ratio re-derivable from the returns series and the published formula version (PAID $5.00) VALUE: Compute the tearsheet. PRICE: $5.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Agent Spend Governor — ATOMIC reserved lease (PAID $0.02) VALUE: A leased, expiring reservation of budget for a named intent — spend that is committed before it is spent. PRICE: $0.02 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Agent Spend Governor — settle a lease, idempotent (PAID $0.02) VALUE: Closing a reservation against what was actually spent — the difference between a budget and a wish. PRICE: $0.02 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Liveness and settlement-configuration probe for the x402 service. Returns the live network, receive address and whether settlement is enabled. VALUE: Free, because an agent that cannot tell a live service from a dead one pays for nothing useful. PRICE: FREE — no payment required. Call it directly. No payment, no headers, no account.

Bind an agent to its operator and wallet, with the evidence and an honest grade of it (PAID $1.00) VALUE: Bind an agent to its operator and its wallet. PRICE: $1.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Identity Control Proof VALUE: Proof that a claimer controls an identifier, signed and dated — so an identity claim is a verification, not an assertion. PRICE: $0.20 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

The signed Synthex Agentic-Commerce Index: a dated, rule-published mark (PAID $5.00) VALUE: The Synthex Agentic-Commerce Index — a dated, signed mark on the agentic economy itself, computed from our own observation corpus of x402 settlements. The rules are published with the answer, so you can re-derive the marks. PRICE: $5.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Invoice Ocr VALUE: Structured line items, vendor and total from an invoice image — the manual data entry an agent removes. PRICE: $0.02 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Latency benchmark of a third-party API, measured by us (PAID $0.05) VALUE: The latency percentiles of a vendor's API from our own probes — the number a performance-based selection is actually made on. PRICE: $0.05 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Licence Check VALUE: Whether a specific dataset licence permits a specific intended use in a specific jurisdiction — a legal question with a dated answer. PRICE: $0.10 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed compliance certificate: does this portfolio comply with this mandate (PAID $5.00) VALUE: A signed, dated compliance certificate an allocator can actually file — replaces an analyst hour on a document, and never certifies compliance on missing evidence. PRICE: $5.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed market-hours / holiday / settlement answer (PAID $0.01) VALUE: Session hours, holidays and settlement cut-offs for a venue, DST aware — so you never settle into a closed market. PRICE: $0.01 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed bar series over an explicit range (PAID $1.00) VALUE: Historical bars for an instrument, formatted and bounded — the data a backtest needs, without hand-assembling it. PRICE: $1.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed bulk bar series, up to 20 pairs (PAID $5.00) VALUE: The same history for many pairs in one call — the cost of a portfolio-wide study drops to a single request. PRICE: $5.00 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Is this market trending or ranging? Signed regime read from your own series (PAID $0.05) VALUE: Return ONE signed, dated regime read. PRICE: $0.05 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Signed OHLCV snapshot from our own market-data store (PAID $0.01) VALUE: A point-in-time market snapshot for an instrument, bounded and timestamped — the 'now' you stamp a decision with. PRICE: $0.01 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Judge Grade VALUE: A rubric-scored judgement of a model response, signed and dated — evaluation you can re-check rather than re-argue. PRICE: $0.15 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Tool Permission Threatmodel VALUE: A threat model of a tool manifest with per-tool permissions and runaway protection — the analysis before you grant an agent a capability. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Uptime Canary Probe VALUE: Independent uptime confirmation tied to a settled receipt — proof of service that a self-report cannot manufacture. PRICE: $0.25 USDC per call. HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the `X-PAYMENT` header, then retry the same call. An unpaid call returns a `payment_required` payload with the amount, asset, network and payTo already filled in. The `synthex-x402` SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.