math.openverbs.com
math.openverbs.com
· math.openverbs.com
Parse an expression and return the free variables it references, without evaluating it — so an agent can discover which inputs a formula needs before supplying values. A syntax error is a clean 400.
math.openverbs.com via a single DNS TXT record to add the
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F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
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agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.
Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://math.openverbs.com/v1/eval
|
0.004 | USDC |
https://math.openverbs.com/v1/variables
|
0.004 | USDC |
0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a · basescan ↗
eth_getLogs on USDC Transfer events to the payment wallet.
single_payer_observed
2/5
Payer identities observed; a single payer accounts for effectively all observed volume.
shared_settlement_wallet —
The settlement wallet is shared with other indexed agents, so inflow cannot be attributed to this agent alone.
daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap.
Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions.
Measured 2026-09-08.
get_agent_full and
payment_intelligence skills
on REST, A2A and MCP. API docs →
| Agent card | https://math.openverbs.com |
| Provider | https://math.openverbs.com |
| Docs | https://math.openverbs.com |
Health · last 0 probes
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Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
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"service": {
"id": "math-openverbs-com",
"name": "math.openverbs.com",
"description": "",
"domain": "math.openverbs.com",
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"providerUrl": "",
"category": "",
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],
"enriched": false,
"endpoints": [
{
"url": "https://math.openverbs.com/v1/eval",
"description": "Evaluate a mathematical expression with optional named variables \u2014 arithmetic, comparison and logic operators plus functions like sqrt, abs, min, max, sin, cos, log, floor, round, etc. A syntax error, an undefined variable, or a non-finite result is a clean 400. The factorial operator is disabled for safety.",
"pricing": {
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"network": "eip155:8453",
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},
"method": "POST",
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"parameters": [
{
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"required": false
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{
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"description": "",
"example": 1,
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"tags": [
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"calculator api",
"compute formula",
"expression evaluator",
"math with variables"
],
"quality": {
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"l30DaysUniquePayers": "1"
}
},
{
"url": "https://math.openverbs.com/v1/variables",
"description": "Parse an expression and return the free variables it references, without evaluating it \u2014 so an agent can discover which inputs a formula needs before supplying values. A syntax error is a clean 400.",
"pricing": {
"amount": "0.004",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
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"type": "string",
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"example": "example",
"enumValues": [],
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}
],
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"quality": {
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"integrationType": "",
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"avgCostPerTransaction": "0.004",
"avgCostBasis": "exact",
"currency": "USDC"
},
"serviceName": "",
"tags": [
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],
"iconUrl": ""
}
}