Synthex Forge — x402 Paid Agent Services

Get Counterparty Preflight

get_counterparty_preflight

Read-onlyIdempotent

Signed preflight verdict on a counterparty BEFORE you pay them. use it rather than verify_counterparty_preflight for counterparty preflight specifically; an object with 78 fields including algorithm, alive. $0.01 USDC.

Input Schema

Name	Required	Description	Default
`kind`	No	The kind this operation operates on. See the schema for its type and whether it is required.	endpoint
`checks`	No	Which checks to run. Omit for the default set.
`target`	Yes	The target the operation acts on — a host, a service or an endpoint.

Output Schema

Name	Required	Description
`ok`	Yes	Whether the operation succeeded.
`ts`	No	The `ts` field of the response.
`kind`	No	The `kind` field of the response.
`salt`	No	The `salt` field of the response.
`alive`	No	The `alive` field of the response.
`basis`	No	The `basis` field of the response.
`items`	No	The items the operation returned.
`value`	No	The `value` field of the response.
`detail`	Yes	Human-readable explanation of the verdict.
`factor`	No	The `factor` field of the response.
`key_id`	No	The `key_id` field of the response.
`pay_to`	No	The `pay_to` field of the response.
`paytos`	No	The `paytos` field of the response.
`sha256`	No	The `sha256` field of the response.
`source`	No	The `source` field of the response.
`status`	No	The status of the operation.
`target`	No	The `target` field of the response.
`ts_raw`	No	The `ts_raw` field of the response.
`defects`	No	The `defects` field of the response.
`digests`	No	The `digests` field of the response.
`matched`	No	The `matched` field of the response.
`max_usd`	No	The `max_usd` field of the response.
`min_usd`	No	The `min_usd` field of the response.
`network`	No	The `network` field of the response.
`pay_tos`	No	The `pay_tos` field of the response.
`pricing`	No	The `pricing` field of the response.
`reasons`	No	The `reasons` field of the response.
`service`	No	The `service` field of the response.
`verdict`	Yes	The decision this tool returned.
`evidence`	No	The `evidence` field of the response.
`failures`	No	The `failures` field of the response.
`networks`	No	The `networks` field of the response.
`ok_count`	No	The `ok_count` field of the response.
`algorithm`	No	The `algorithm` field of the response.
`last_seen`	No	The `last_seen` field of the response.
`price_usd`	No	The price of the operation that was paid.
`record_id`	No	The `record_id` field of the response.
`signature`	Yes	The Ed25519 signature over the evidence core, base64-encoded.
`checks_run`	No	The `checks_run` field of the response.
`disclaimer`	No	The `disclaimer` field of the response.
`first_seen`	No	The `first_seen` field of the response.
`latency_ms`	No	The `latency_ms` field of the response.
`public_key`	No	The `public_key` field of the response.
`risk_flags`	No	The `risk_flags` field of the response.
`window_end`	No	The `window_end` field of the response.
`conformance`	No	The `conformance` field of the response.
`corpus_root`	No	The `corpus_root` field of the response.
`http_status`	No	The `http_status` field of the response.
`largest_usd`	No	The `largest_usd` field of the response.
`observed_at`	No	The `observed_at` field of the response.
`reliability`	No	The `reliability` field of the response.
`signed_over`	No	The `signed_over` field of the response.
`window_days`	No	The `window_days` field of the response.
`checks_total`	No	The `checks_total` field of the response.
`observations`	No	The `observations` field of the response.
`price_factor`	No	The `price_factor` field of the response.
`window_start`	No	The `window_start` field of the response.
`checks_passed`	No	The `checks_passed` field of the response.
`coverage_gaps`	No	The `coverage_gaps` field of the response.
`last_observed`	No	The `last_observed` field of the response.
`output_sha256`	Yes	SHA-256 hex digest of the canonical evidence core.
`payments_seen`	No	The `payments_seen` field of the response.
`price_changed`	No	The `price_changed` field of the response.
`price_max_usd`	No	The `price_max_usd` field of the response.
`price_min_usd`	No	The `price_min_usd` field of the response.
`report_sha256`	No	The `report_sha256` field of the response.
`corpus_id_salt`	No	The `corpus_id_salt` field of the response.
`uptime_pct_30d`	No	The `uptime_pct_30d` field of the response.
`paytos_observed`	No	The `paytos_observed` field of the response.
`profile_version`	No	Version of the answer profile.
`changed_last_30d`	No	The `changed_last_30d` field of the response.
`checks_requested`	No	The `checks_requested` field of the response.
`observation_count`	No	The `observation_count` field of the response.
`price_changed_30d`	No	The `price_changed_30d` field of the response.
`settlement_history`	No	The `settlement_history` field of the response.
`consecutive_failures`	No	The `consecutive_failures` field of the response.
`observation_window_days`	No	The `observation_window_days` field of the response.
`observation_span_seconds`	No	The `observation_span_seconds` field of the response.

Schema Changelog

Changes observed during successful MCP inspections.

Changed79 schema fields changedOct 31, 2026

addedOutput schema / properties / algorithm

Added value: +{
+  "description": "The `algorithm` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / alive

Added value: +{
+  "description": "The `alive` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / basis

Added value: +{
+  "description": "The `basis` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / changed_last_30d

Added value: +{
+  "description": "The `changed_last_30d` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / checks_passed

Added value: +{
+  "description": "The `checks_passed` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / checks_requested

Added value: +{
+  "description": "The `checks_requested` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / checks_run

Added value: +{
+  "description": "The `checks_run` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / checks_total

Added value: +{
+  "description": "The `checks_total` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / conformance

Added value: +{
+  "description": "The `conformance` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / consecutive_failures

Added value: +{
+  "description": "The `consecutive_failures` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / corpus_id_salt

Added value: +{
+  "description": "The `corpus_id_salt` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / corpus_root

Added value: +{
+  "description": "The `corpus_root` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / coverage_gaps

Added value: +{
+  "description": "The `coverage_gaps` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / defects

Added value: +{
+  "description": "The `defects` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / detail

Added value: +{
+  "description": "Human-readable explanation of the verdict.",
+  "type": "string"
+}

addedOutput schema / properties / digests

Added value: +{
+  "description": "The `digests` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / disclaimer

Added value: +{
+  "description": "The `disclaimer` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / evidence

Added value: +{
+  "description": "The `evidence` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / factor

Added value: +{
+  "description": "The `factor` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / failures

Added value: +{
+  "description": "The `failures` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / first_seen

Added value: +{
+  "description": "The `first_seen` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / http_status

Added value: +{
+  "description": "The `http_status` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / items

Added value: +{
+  "description": "The items the operation returned.",
+  "items": {
+    "description": "One record.",
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / key_id

Added value: +{
+  "description": "The `key_id` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / kind

Added value: +{
+  "description": "The `kind` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / largest_usd

Added value: +{
+  "description": "The `largest_usd` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / last_observed

Added value: +{
+  "description": "The `last_observed` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / last_seen

Added value: +{
+  "description": "The `last_seen` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / latency_ms

Added value: +{
+  "description": "The `latency_ms` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / matched

Added value: +{
+  "description": "The `matched` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / max_usd

Added value: +{
+  "description": "The `max_usd` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / min_usd

Added value: +{
+  "description": "The `min_usd` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / network

Added value: +{
+  "description": "The `network` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / networks

Added value: +{
+  "description": "The `networks` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / observation_count

Added value: +{
+  "description": "The `observation_count` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / observation_span_seconds

Added value: +{
+  "description": "The `observation_span_seconds` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / observation_window_days

Added value: +{
+  "description": "The `observation_window_days` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / observations

Added value: +{
+  "description": "The `observations` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / observed_at

Added value: +{
+  "description": "The `observed_at` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / ok

Added value: +{
+  "description": "Whether the operation succeeded.",
+  "type": "boolean"
+}

addedOutput schema / properties / ok_count

Added value: +{
+  "description": "The `ok_count` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / output_sha256

Added value: +{
+  "description": "SHA-256 hex digest of the canonical evidence core.",
+  "type": "string"
+}

addedOutput schema / properties / pay_to

Added value: +{
+  "description": "The `pay_to` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / pay_tos

Added value: +{
+  "description": "The `pay_tos` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / payments_seen

Added value: +{
+  "description": "The `payments_seen` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / paytos

Added value: +{
+  "description": "The `paytos` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / paytos_observed

Added value: +{
+  "description": "The `paytos_observed` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_changed

Added value: +{
+  "description": "The `price_changed` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_changed_30d

Added value: +{
+  "description": "The `price_changed_30d` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_factor

Added value: +{
+  "description": "The `price_factor` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_max_usd

Added value: +{
+  "description": "The `price_max_usd` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_min_usd

Added value: +{
+  "description": "The `price_min_usd` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / price_usd

Added value: +{
+  "description": "The price of the operation that was paid.",
+  "type": "number"
+}

addedOutput schema / properties / pricing

Added value: +{
+  "description": "The `pricing` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / profile_version

Added value: +{
+  "description": "Version of the answer profile.",
+  "type": "string"
+}

addedOutput schema / properties / public_key

Added value: +{
+  "description": "The `public_key` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / reasons

Added value: +{
+  "description": "The `reasons` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / record_id

Added value: +{
+  "description": "The `record_id` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / reliability

Added value: +{
+  "description": "The `reliability` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / report_sha256

Added value: +{
+  "description": "The `report_sha256` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / risk_flags

Added value: +{
+  "description": "The `risk_flags` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / salt

Added value: +{
+  "description": "The `salt` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / service

Added value: +{
+  "description": "The `service` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / settlement_history

Added value: +{
+  "description": "The `settlement_history` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / sha256

Added value: +{
+  "description": "The `sha256` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / signature

Added value: +{
+  "description": "The Ed25519 signature over the evidence core, base64-encoded.",
+  "type": "string"
+}

addedOutput schema / properties / signed_over

Added value: +{
+  "description": "The `signed_over` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / source

Added value: +{
+  "description": "The `source` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / status / description
```
Added value: +"The status of the operation."
```

addedOutput schema / properties / target

Added value: +{
+  "description": "The `target` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / ts

Added value: +{
+  "description": "The `ts` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / ts_raw

Added value: +{
+  "description": "The `ts_raw` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / uptime_pct_30d

Added value: +{
+  "description": "The `uptime_pct_30d` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / value

Added value: +{
+  "description": "The `value` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / verdict

Added value: +{
+  "description": "The decision this tool returned.",
+  "type": "string"
+}

addedOutput schema / properties / window_days

Added value: +{
+  "description": "The `window_days` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / window_end

Added value: +{
+  "description": "The `window_end` field of the response.",
+  "type": "object"
+}

addedOutput schema / properties / window_start

Added value: +{
+  "description": "The `window_start` field of the response.",
+  "type": "object"
+}

addedOutput schema / required

Added value: +[
+  "detail",
+  "ok",
+  "output_sha256",
+  "signature",
+  "verdict"
+]

AddedOct 31, 2026

TDQS

A3.5/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already establish read-only, idempotent, non-destructive behavior. The description adds useful context beyond them: the verdict is signed, it should be obtained before payment, and it costs $0.01 USDC. The odd '78 fields including algorithm, alive' fragment is not helpful behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The purpose is front-loaded, but the description contains a malformed sentence ('an object with 78 fields including algorithm, alive. $0.01 USDC.'). It is short, yet not cleanly structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Because an output schema exists and annotations cover safety traits, the description does not need to explain return values. It adds cost and pre-payment timing, but it leaves gaps around alternatives and the broken return-value fragment reduces clarity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents `kind`, `checks`, and `target`. The description adds no parameter-specific meaning beyond what the structured schema provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The first sentence states a specific verb and resource with scope: a signed preflight verdict on a counterparty before payment. It also names a sibling it should be preferred over, though the distinction is phrased circularly ('for counterparty preflight specifically').

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It says to use this rather than `verify_counterparty_preflight` and gives a timing cue ('BEFORE you pay them'). However, it does not explain when to choose other plausible alternatives such as `assess_counterparty_risk`, `get_bureau_preflight`, or `get_agent_preflight`, so guidance is only partial.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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