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📊 Intel view 📋 Audit JSON 🔄 Changelog
65
💰 Paid API

similarity.openverbs.com

similarity.openverbs.com · similarity.openverbs.com
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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 0 probes so far, need ≥5 for an uptime grade.
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: similarity.openverbs.com (https://similarity.openverbs.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's 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 recorded

Nothing 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.

Uptime
not measured
0 direct probes · 30d
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0020 per call
Endpoint Price Currency
https://similarity.openverbs.com/v1/compare 0.002 USDC
https://similarity.openverbs.com/v1/damerau 0.004 USDC
https://similarity.openverbs.com/v1/dice 0.004 USDC
https://similarity.openverbs.com/v1/double-metaphone 0.002 USDC
https://similarity.openverbs.com/v1/hamming 0.004 USDC
https://similarity.openverbs.com/v1/jaccard 0.004 USDC
https://similarity.openverbs.com/v1/jaro 0.004 USDC
https://similarity.openverbs.com/v1/levenshtein 0.004 USDC
https://similarity.openverbs.com/v1/metaphone 0.002 USDC
https://similarity.openverbs.com/v1/soundex 0.002 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a · basescan ↗
Agent cardhttps://similarity.openverbs.com
Providerhttps://similarity.openverbs.com
Docshttps://similarity.openverbs.com
Discovered via
agentic_market

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/similarity.openverbs.com.svg)](https://agenstry.com/agents/similarity.openverbs.com)
[![Verified Business](https://agenstry.com/badge/similarity.openverbs.com/identity.svg)](https://agenstry.com/agents/similarity.openverbs.com)
[![Uptime](https://agenstry.com/badge/similarity.openverbs.com/uptime.svg)](https://agenstry.com/agents/similarity.openverbs.com)
[![A2A version](https://agenstry.com/badge/similarity.openverbs.com/protocol.svg)](https://agenstry.com/agents/similarity.openverbs.com)

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.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "agentic.market",
  "service": {
    "id": "similarity-openverbs-com",
    "name": "similarity.openverbs.com",
    "description": "",
    "domain": "similarity.openverbs.com",
    "provider": "similarity.openverbs.com",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://similarity.openverbs.com/v1/compare",
        "description": "Report whether two tokens sound alike under a chosen algorithm (soundex, metaphone or double-metaphone; default double-metaphone). Returns each token's codes and a boolean match.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "algorithm",
            "type": "string",
            "description": "",
            "example": "soundex",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Phonetic compare",
        "tags": [
          "phonetic compare api",
          "sounds alike names",
          "compare name pronunciation",
          "fuzzy phonetic match",
          "soundex metaphone compare"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/damerau",
        "description": "Damerau-Levenshtein distance \u2014 like Levenshtein but also counts adjacent transpositions as a single edit \u2014 plus a normalized similarity in [0,1].",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Damerau-Levenshtein distance",
        "tags": [
          "damerau levenshtein distance",
          "transposition edit distance",
          "typo similarity api",
          "adjacent swap distance",
          "fuzzy typo matching"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/dice",
        "description": "S\u00f8rensen-Dice similarity coefficient in [0,1] over character bigrams \u2014 robust to word order and minor edits.",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "",
        "tags": [
          "sorensen dice coefficient",
          "dice similarity api",
          "character bigram similarity",
          "bigram text comparison",
          "word order tolerant match"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/double-metaphone",
        "description": "Encode a word with Double Metaphone, returning a primary and a secondary code to capture alternate pronunciations (useful for non-English names).",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "word",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Double Metaphone",
        "tags": [
          "double metaphone api",
          "double metaphone encode",
          "alternate pronunciation codes",
          "non english name matching",
          "primary secondary phonetic code"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/hamming",
        "description": "Hamming distance \u2014 the number of positions at which two EQUAL-LENGTH strings differ \u2014 plus a normalized similarity. Strings of unequal length are a clean 400.",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Hamming distance",
        "tags": [
          "hamming distance",
          "equal length string distance",
          "character mismatch count",
          "compare fixed length strings",
          "binary string similarity"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/jaccard",
        "description": "Jaccard similarity index in [0,1] \u2014 the size of the intersection over the union of the two strings' character-bigram sets.",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Jaccard index",
        "tags": [
          "jaccard index",
          "jaccard similarity api",
          "set overlap similarity",
          "character bigram jaccard",
          "intersection over union text"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/jaro",
        "description": "Jaro similarity and the Jaro-Winkler variant (which boosts scores for a shared prefix), both in [0,1]. The prefix boost factor is configurable (default 0.1, max 0.25). Well suited to short strings like names.",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "prefixScale",
            "type": "number",
            "description": "",
            "example": 0.25,
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Jaro & Jaro-Winkler similarity",
        "tags": [
          "jaro winkler similarity",
          "jaro similarity api",
          "name similarity score",
          "short string matching",
          "prefix boosted matching"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/levenshtein",
        "description": "Levenshtein edit distance (insertions, deletions, substitutions) between two strings, plus a normalized similarity in [0,1]. Operates on Unicode code points.",
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "a",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "b",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Levenshtein distance",
        "tags": [
          "levenshtein distance",
          "edit distance api",
          "string edit distance",
          "compare two strings",
          "fuzzy string match"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/metaphone",
        "description": "Encode a word with the Metaphone algorithm \u2014 more accurate than Soundex for English pronunciation.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "word",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Metaphone",
        "tags": [
          "metaphone api",
          "metaphone encode word",
          "english pronunciation code",
          "phonetic search key",
          "better soundex matching"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://similarity.openverbs.com/v1/soundex",
        "description": "Encode a word with the classic Soundex algorithm (letter + 3 digits) for phonetic matching of names.",
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "word",
            "type": "string",
            "description": "",
            "example": "example",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Soundex",
        "tags": [
          "soundex api",
          "soundex encode name",
          "phonetic name code",
          "classic name matching",
          "surname sound matching"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.002",
      "maxAmount": "0.004",
      "avgCostPerTransaction": "0.0032",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "",
    "tags": [
      "phonetic compare api",
      "sounds alike names",
      "compare name pronunciation",
      "fuzzy phonetic match",
      "soundex metaphone compare",
      "damerau levenshtein distance",
      "transposition edit distance",
      "typo similarity api",
      "adjacent swap distance",
      "fuzzy typo matching",
      "sorensen dice coefficient",
      "dice similarity api",
      "character bigram similarity",
      "bigram text comparison",
      "word order tolerant match",
      "double metaphone api",
      "double metaphone encode",
      "alternate pronunciation codes",
      "non english name matching",
      "primary secondary phonetic code",
      "hamming distance",
      "equal length string distance",
      "character mismatch count",
      "compare fixed length strings",
      "binary string similarity",
      "jaccard index",
      "jaccard similarity api",
      "set overlap similarity",
      "character bigram jaccard",
      "intersection over union text",
      "jaro winkler similarity",
      "jaro similarity api",
      "name similarity score",
      "short string matching",
      "prefix boosted matching",
      "levenshtein distance",
      "edit distance api",
      "string edit distance",
      "compare two strings",
      "fuzzy string match",
      "metaphone api",
      "metaphone encode word",
      "english pronunciation code",
      "phonetic search key",
      "better soundex matching",
      "soundex api",
      "soundex encode name",
      "phonetic name code",
      "classic name matching",
      "surname sound matching"
    ],
    "iconUrl": ""
  }
}