{ "data": { "a": { "slug": "gauge-cli", "name": "Gauge CLI", "vendor": "Gauge", "vendorUrl": "https://www.withgauge.com/agents/", "kind": "cli", "category": "agent-observability", "summary": "Gauge CLI runs real coding agents (Claude Code, Codex, Pi, OpenCode) against your skills, CLIs, SDKs, MCP servers and docs in Docker, records where they get stuck, and lets your agent test fixes before release.", "url": "https://www.anchorterminal.com/tools/gauge-cli", "markdownUrl": "https://www.anchorterminal.com/tools/gauge-cli.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/gauge-cli.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/gauge-cli.json", "dns": "gauge-cli.grade.anchorterminal.com", "repo": "https://github.com/gauge-sh/gauge-cli", "license": "MIT", "transports": [], "packages": [ { "registry": "npm", "name": "@withgauge/cli" } ], "auth": "none", "authNotes": "Local mode needs no Gauge account, only credentials for the agent under test (native Claude or Codex logins, or API keys). Hosted Gauge uses `gauge auth login`, with a device flow for remote terminals.", "pricing": "freemium", "pricingNotes": "The CLI and local mode are free and MIT-licensed; agent usage is billed by your provider or subscription. Hosted Gauge runs on workspace credits, whose prices weren't read (checked 2026-11-06).", "priceSummary": "Freemium", "where": "local", "x402": { "level": "no", "evidence": "No payment protocol in the CLI or its README; hosted runs use workspace credits (checked 2026-11-06).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://docs.withgauge.com/agents", "capabilities": [ "obs.evals" ], "tags": [ "open-source", "mit", "cli", "node", "docker", "telemetry", "new" ], "lastRelease": "2026-11-04", "graded": true, "anchor": { "graded": true, "score": 60.4, "grade": "C", "agentReady": false, "rank": 590, "ranked": true, "rankOf": 1354, "categoryRank": 13, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 75, "maintenance": 82, "payments": 40, "reliability": 60, "schema": 60, "security": 55, "transparency": 53 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-06" }, "negative": 0, "verdict": "An open-source CLI that measures how coding agents get on with your product and checks fixes before you ship them, locally in Docker with no account. It's young and pre-1.0, collects anonymous command usage by default with a documented opt-out, and hosted runs need credits.", "bestFor": "Teams that build skills, CLIs, SDKs or MCP servers and want to see where coding agents get stuck with them, and to test fixes before release.", "strengths": [ "Runs Claude Code, Codex, Pi and OpenCode in fresh Docker sessions against working-tree or pre-release versions", "Local mode needs no Gauge account, only your existing agent credentials", "Dated changelog with six releases in about two weeks", "Instructions bundled in the CLI for coding agents, and -o json on read commands", "CI runs checks on every push and pull request" ], "weaknesses": [ "Collects anonymous command usage by default, with an opt-out", "Pre-1.0 and about two weeks old in this repository", "Docs, authenticated MCP servers and authenticated APIs need hosted Gauge and credits", "Hosted credit prices weren't found on the pages read" ], "agentNotes": [ "npm install -g @withgauge/cli, then gauge local runtime pull and gauge init --local in the project", "Run gauge install-skill so your coding agent finds the CLI's own instructions", "Set GAUGE_TELEMETRY_DISABLED=1 in CI if you don't want command usage collected", "Rebuild and pack an npm CLI or SDK before rerunning, so test sessions get the new tarball", "Keep .gauge/ private; it holds measurements and analyses" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 60.4 } ], "editorialScores": { "ergonomics": 75, "maintenance": 82, "payments": 40, "reliability": 60, "schema": 60, "security": 55, "transparency": 78 }, "provenanceScore": 27, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npm install -g @withgauge/cli\ngauge local runtime pull\ngauge init --local\ngauge install-skill" }, "letme": { "capability": "https://letme.dev/obs.evals", "tool": "https://letme.dev/gauge-cli" }, "area": "developer", "provenance": { "legalEntity": "", "domain": "withgauge.com", "domainRegistered": "", "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/gauge-sh/gauge-cli/blob/main/cli/CHANGELOG.md", "securityTxt": "none", "checked": "2026-11-06", "notes": [ "The npm package's author is Gauge \u003csupport@withgauge.com\u003e, its homepage agents.withgauge.com, and its repository field points at gauge-sh/gauge-cli. The licence names Gauge.", "Hosted Gauge's terms and privacy weren't read, and security.txt wasn't checked." ], "score": 27 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/gauge-cli.json" }, "answer": "Respan API + MCP scores 72 (BB) on agent readiness against Gauge CLI's 60.4 (C), and leads in 6 of 7 scored categories. Gauge CLI leads on payments \u0026 pricing.", "b": { "slug": "respan", "name": "Respan API + MCP", "vendor": "Respan (formerly Keywords AI)", "vendorUrl": "https://www.respan.ai", "kind": "http-api", "category": "agent-observability", "summary": "Hosted tracing, evals, prompt management and an LLM gateway to 250+ models, from the company formerly called Keywords AI.", "url": "https://www.anchorterminal.com/tools/respan", "markdownUrl": "https://www.anchorterminal.com/tools/respan.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/respan.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/respan.json", "dns": "respan.grade.anchorterminal.com", "repo": "https://github.com/respanai/respan", "license": "Apache-2.0 (SDKs only, platform closed source)", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.respan.ai/api", "packages": [ { "registry": "pypi", "name": "respan-tracing" }, { "registry": "npm", "name": "@respan/tracing" } ], "auth": "mixed", "authNotes": "API key as a Bearer token for the REST API and MCP. Keys carry Read, Write, Gateway and Admin scopes (new keys default to Read, Write and Gateway), can have an expiry and spend caps, and are bound to one project. The hosted MCP server also supports OAuth sign-in, or a JWT copied from mcp.respan.ai/login. A Respan-Enabled-Tools header limits which MCP tools a client sees.", "pricing": "freemium", "pricingNotes": "Free plan with 100,000 logs, 1,000 scores, 7-day retention, unlimited seats and 412 requests a minute on the gateway. Team $199 a month billed yearly with 5 seats ($15 per extra member), 10,000 scores, 30-day retention and 8,400 gateway requests a minute. Extra logs $8 per 100,000, extra scores $1 per 1,000, HIPAA add-on $249 a month. Enterprise is custom (https://www.respan.ai/pricing).", "priceSummary": "$199 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 support in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 12, "popularity": { "githubStars": null, "npmWeekly": 270, "pypiWeekly": 12515, "asOf": "2026-09-30" }, "docsUrl": "https://www.respan.ai/docs", "llmsTxt": "https://www.respan.ai/docs/llms.txt", "openapi": "https://respan.ai/docs/openapi.json", "capabilities": [ "obs.traces", "obs.evals", "obs.prompts", "obs.gateway", "obs.datasets" ], "tags": [ "hosted", "freemium", "mcp", "llms-txt", "openapi", "python", "typescript", "closed-source", "webhooks", "enterprise" ], "lastRelease": "2026-10-19", "graded": true, "anchor": { "graded": true, "score": 72, "grade": "BB", "agentReady": true, "rank": 128, "ranked": true, "rankOf": 1354, "categoryRank": 2, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 90, "maintenance": 85, "payments": 30, "reliability": 83, "schema": 89, "security": 74, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-01" }, "negative": -3, "negativeNotes": [ "2026-07-30, 2026-08-28 and 2026-10-19. The changelog lists \"Closed an unauthorized live-event stream vulnerability\" (30 July), \"Patched some security vulnerabilities\" (28 August) and \"custom models no longer appear in the public catalog\" (19 October) with no advisory, scope or statement on whether customer data was exposed. Released fixes of Respan's own described flaws with no advisory take -3 in this run, repeats folded into one term. https://www.respan.ai/docs/changelog/changelog" ], "verdict": "Project-bound API keys with Read, Write, Gateway and Admin scopes, and since October a hosted MCP server that lists twelve tools, annotates every tool and connects read-only by default. Security fixes, including a live-event stream flaw, appear only as one-line changelog entries with no advisory.", "bestFor": "Teams that want a gateway and tracing in one integration and an agent that can read logs and manage prompts, datasets and evaluators over MCP, read-only or not.", "strengths": [ "API keys with Read, Write, Gateway and Admin scopes, expiry and spend caps, bound to one project", "The MCP server lists ten everyday tools plus tool_search and tool_run, and annotates every tool read-only or destructive", "OAuth MCP connections are read-only by default, and `/mcp/readonly` never exposes write tools", "OpenAPI 3.1 spec, llms.txt and Markdown for every docs page", "Guardrails V2 blocks prompt-injection requests at the gateway, including tool messages" ], "weaknesses": [ "Security fixes on 30 July, 28 August and 19 October 2026 disclosed only as one-line changelog entries", "A 13-hour 47-minute gateway incident on Responses API traffic on 26 September 2026", "No `Retry-After` or backoff guidance for 429 responses", "Free plan keeps logs for 7 days", "No deprecation policy, and the legacy `/api/generate` endpoint was retired on 11 September 2026" ], "agentNotes": [ "Connect to https://mcp.respan.ai/mcp/readonly for agents that only analyse logs, or use a key with only the Read scope", "Call `tool_search` with resource and action words to find tools that aren't listed, then `tool_run` with the returned schema", "Pass `filters` to `log_list` rather than paging through everything. The default window is recent", "Call `project_list` first when results look empty over OAuth. Every tool acts on the active project only", "Append `.md` to any docs URL for clean Markdown" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 72 } ], "editorialScores": { "ergonomics": 90, "maintenance": 85, "payments": 30, "reliability": 83, "schema": 89, "security": 74, "transparency": 47 }, "provenanceScore": 71, "checked": { "categories": { "ergonomics": "2026-11-01", "maintenance": "2026-11-01", "payments": "2026-11-01", "reliability": "2026-11-01", "schema": "2026-11-01", "security": "2026-11-01", "transparency": "2026-11-01" }, "last": "2026-11-01", "lastMoved": "2026-11-01", "oldest": "2026-11-01", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl -X POST https://api.respan.ai/api/traces/list/ -H \"Authorization: Bearer $RESPAN_API_KEY\" \\\n -H \"content-type: application/json\" -d '{}'", "claudeCode": "claude mcp add --transport http --header \"Authorization: Bearer $RESPAN_API_KEY\" respan https://mcp.respan.ai/mcp", "config": { "mcpServers": { "respan": { "headers": { "Authorization": "Bearer ${RESPAN_API_KEY}" }, "type": "http", "url": "https://mcp.respan.ai/mcp" } } } }, "letme": { "capability": "https://letme.dev/obs.traces", "tool": "https://letme.dev/respan" }, "area": "developer", "unitPrices": [ { "item": "Team plan", "unit": "month", "usd": 199, "note": "billed yearly, 5 seats, 10,000 scores, 30-day retention" }, { "item": "Extra Team member", "unit": "seat-month", "usd": 15 }, { "item": "HIPAA add-on", "unit": "month", "usd": 249 } ], "provenance": { "legalEntity": "Keywords AI Inc. (d/b/a Respan)", "domain": "respan.ai", "domainRegistered": "2026-01-13", "domainNote": "respan.ai shows a 2026-01-13 registration, matching the rename from Keywords AI (keywordsai.co).", "endpointOnVendorDomain": true, "terms": "https://www.respan.ai/legal/terms-of-use", "privacy": "https://www.respan.ai/legal/privacy-policy", "statusPage": "https://status.respan.ai", "changelog": "https://www.respan.ai/docs/changelog/changelog", "securityTxt": "none", "checked": "2026-09-30", "score": 71 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/respan.json", "live": { "slug": "respan", "probe": { "target": "https://api.respan.ai/api", "method": "get", "lastAt": "2026-11-06T09:47:47.022401715Z", "lastOk": true, "lastStatus": 404, "lastMs": 264, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 268, "p95ms24h": 377, "samples24h": 221, "samples30d": 7856, "days": [ { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 250, "ok": 250 }, { "date": "2026-10-29", "probes": 249, "ok": 249 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 248, "ok": 248 }, { "date": "2026-11-04", "probes": 246, "ok": 246 }, { "date": "2026-11-05", "probes": 185, "ok": 185 }, { "date": "2026-11-06", "probes": 102, "ok": 102 } ] }, "vendorStatus": { "page": "https://status.respan.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-06T05:42:34.383520227Z" }, "versions": [ { "registry": "npm", "name": "@respan/tracing", "version": "1.6.1", "seenAt": "2026-11-05T22:04:10.437572902Z" }, { "registry": "pypi", "name": "respan-tracing", "version": "2.24.1", "released": "2026-11-04", "seenAt": "2026-11-05T22:04:10.019634763Z" } ], "githubStars": 53, "npmWeekly": 658, "pypiWeekly": 11944, "securityTxt": { "url": "https://respan.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-05T15:56:38.757010931Z" }, "llmsTxt": { "url": "https://www.respan.ai/docs/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-05T15:27:11.731179146Z" }, "domain": { "domain": "respan.ai", "registered": "2026-01-13", "source": "https://rdap.identitydigital.services/rdap/domain/respan.ai", "checkedAt": "2026-11-01T14:19:20.519160534Z" }, "pages": [ { "url": "https://www.respan.ai/docs/changelog/changelog", "kind": "changelog", "status": 429, "checkedAt": "2026-11-05T13:17:10.876738761Z", "changedAt": "2026-10-27T04:04:52.064090751Z", "fingerprint": "9bd535cb358e" }, { "url": "https://www.respan.ai/pricing", "kind": "pricing", "status": 429, "checkedAt": "2026-11-05T13:17:16.894390634Z", "changedAt": "2026-10-28T04:54:22.456462239Z", "fingerprint": "0388a62824cd" }, { "url": "https://www.respan.ai/legal/privacy-policy", "kind": "privacy", "status": 429, "checkedAt": "2026-11-05T13:17:12.902961357Z", "changedAt": "2026-10-28T04:54:18.502684656Z", "fingerprint": "9cca666756a2" }, { "url": "https://www.respan.ai/legal/terms-of-use", "kind": "terms", "status": 429, "checkedAt": "2026-11-05T13:17:14.901369358Z", "changedAt": "2026-10-28T04:54:20.472485101Z", "fingerprint": "5fc29b0163c3" } ], "github": { "repo": "respanai/respan", "checkedAt": "2026-11-02T09:21:36.9657841Z", "stars": 53, "archived": false, "issuesEnabled": true, "pushedAt": "2026-11-02T05:49:39Z", "openIssues": 4, "openPRs": 12, "issuesOpened90d": 0, "issuesClosed90d": 1, "prsMerged90d": 145, "ci": { "branch": "main", "runs": 50, "success": 33, "failure": 0, "other": 17, "latest": "success", "latestAt": "2026-11-02T05:44:22Z" }, "replies": { "sampled": 6, "unanswered": 4, "medianDays": 61.7 } }, "updatedAt": "2026-11-06T09:47:47.022401715Z" } }, "edges": [ { "by": 29, "category": "schema", "leads": "respan", "name": "Schema \u0026 documentation", "reasons": { "a": "CLI reading. No machine-readable contract, -o json on read commands (10 of 25). No llms.txt; instructions bundled in the CLI for agents (5). The README says what it finds and when local or hosted fits (16 of 20). Commands with help text; typed flags (9 of 15). Worked examples, no error reference (8 of 15). Dated changelog and semver tags (12 of 15). 10 + 5 + 16 + 9 + 8 + 12 = 60.", "b": "OpenAPI 3.1 at respan.ai/docs/openapi.json with 40 or more paths, and every MCP tool takes a zod schema (25). llms.txt, per-section llms.txt and `.md` for every page (10). MCP descriptions say when to use a tool and when not to. `list_logs` tells the model to filter server-side rather than fetch everything and to call `get_log_detail` for full data, and `delete_dataset` says it can't be undone (17). Typed inputs with operator enums, but `page_size` bounds sit in the description rather than the schema and filter values are `any` (11). Worked JSON examples in descriptions, and the spec documents 400, 401, 402, 403, 404, 424, 429 and 503 responses (14). Weekly dated changelog. API paths mix `/api/` and `/api/v1/` with no version policy (12)." }, "scores": { "a": 60, "b": 89 } }, { "by": 23, "category": "reliability", "leads": "respan", "name": "Reliability", "reasons": { "a": "Local package. Installs from npm as @withgauge/cli with Node 22.13 or later and Docker stated (20). checks.yml runs npm run check on push and pull request across a matrix, and the repository has 76 test files; whether main passes wasn't read (20 of 25). Issues weren't read (5, unchecked). A dated changelog with Added sections per release (15). Version 0.28.0 (0). 20 + 20 + 5 + 15 + 0 = 60.", "b": "Better Stack page at status.respan.ai with six components (web, logging and gateway, each for the platform and Enterprise) and an incident history page (20). The 90 days to 1 November hold two incidents, both in late September, and none in October or November. The Responses API path through the gateway was affected for OpenAI and Anthropic requests for 13 hours 47 minutes on 26 September, and request logs were delayed across all regions for 1 hour 58 minutes on 29 September. The first affected about 0.5 per cent of OpenAI and Anthropic requests on that path. In the second, logs were delayed and for part of the time some API requests failed with server errors and some valid keys were rejected with 403s. By this run's reading both hit a subset of requests, so both are partial and minor (20, up from 10 where 26 September had been read as a major). Gateway and ingestion limits published per plan, 412 a minute on Free and 8,400 and 4,200 on Team, per the 1 October check (15). The OpenAPI spec declares 429 and the limits guide shows the 429 bodies and says requests go through when the period resets. We found no `Retry-After` or backoff guidance (10). The pricing page listed a 99.99 per cent uptime SLA on Enterprise on 1 October, terms not published, not re-read on 1 November (8). Gateway, logging and MCP are GA (10). 20 + 20 + 15 + 10 + 8 + 10 = 83." }, "scores": { "a": 60, "b": 83 } }, { "by": 19, "category": "security", "leads": "respan", "name": "Security \u0026 auth", "reasons": { "a": "Local tool. Agent credentials stay on your machine in local mode; hosted login with a device flow (20 of 30). Test agents run in fresh Docker sessions with injected inputs, and the gateway brokers credentials in hosted mode (12 of 20). Agents under test read your product's docs and outputs, with no prompt-injection guidance (5 of 15). Local transcripts and SQLite evidence per run (10 of 15). No security policy found (8 of 20). 20 + 12 + 5 + 10 + 8 = 55.", "b": "API keys carry Read, Write, Gateway and Admin scopes since 25 September, can have an expiry and spend caps, are bound to one project and stop working at once when revoked. The MCP server also takes OAuth, now with `mcp:read` and `mcp:write` scopes (30). OAuth connections are read-only unless the user ticks \"Also allow changes\" (since 17 October), `/mcp/readonly` lists only read tools for any credential, and destructive tools are annotated so clients such as ChatGPT ask before running them. No confirmation step inside Respan itself (18, as exa-mcp). Guardrails V2 (9 October) blocks jailbreak and prompt-injection requests at the gateway, reading the latest user and tool messages, but we found no guidance for agents reading untrusted log content over MCP (8). Every gateway call is logged against its key. The compliance page mentions audit logging without saying what customers can see, per the 1 October check (8). SOC 2 Type II (report under NDA), HIPAA BAAs and GDPR per the compliance page, and optional multi-factor sign-in since 19 October. No security.txt or SECURITY.md, and security fixes appear in the changelog as one-liners (10). 30 + 18 + 8 + 8 + 10 = 74." }, "scores": { "a": 55, "b": 74 } }, { "by": 15, "category": "ergonomics", "leads": "respan", "name": "Agent ergonomics", "reasons": { "a": "CLI reading for an agent driving it. Bundled instructions match the installed version, and output is filterable with -o json (20 of 25). Run summaries and Findings with queryable fields (15 of 20). Errors not documented as a reference (10 of 20). Reruns from checkpoints and a recheck command with a confirm step (15 of 20). Four commands to start, Node only (15 of 15). 20 + 15 + 10 + 15 + 15 = 75.", "b": "Since 21 October the hosted MCP server's `tools/list` shows ten everyday tools (logs, traces, metrics, errors, behaviours, prompts) plus `tool_search` and `tool_run`, with listed descriptions cut to 300 characters and full contracts on request (15 for 12 tools). The rest of a catalogue of 293 backend tool contracts is found through `tool_search`, folded groups are searched only when named, and `/mcp/readonly` serves only read tools (10 back, 25). `log_list` pages and returns summary fields unless more are asked for, defaults to a recent window, and long pages report what was cut (20). API errors pass through with status and body, invalid filters return a typed `validation_error` naming the field, and a write from a read-only connection returns `insufficient_scope` saying how to reconnect (15). Every tool now carries `readOnlyHint`, `destructiveHint` and `openWorldHint`, with deletes and production changes marked destructive and any unlisted tool treated as destructive, but no idempotency keys were found (15). Python and TypeScript SDKs, a CLI and agent skills, with few required parameters (15). 25 + 20 + 15 + 15 + 15 = 90." }, "scores": { "a": 75, "b": 90 } }, { "by": 10, "category": "payments", "leads": "gauge-cli", "name": "Payments \u0026 pricing", "reasons": { "a": "Scored on the hosted option. No payment protocol (0). Credit prices weren't found on the pages read (0). Local mode is free with no card (20). Local mode needs no sign-up (20). 0 + 0 + 20 + 20 = 40.", "b": "No x402 or other machine payment (0). Overage prices published without login, $8 per 100,000 logs and $1 per 1,000 scores on Team (20). The Free plan has 100,000 logs and unlimited seats. The pricing page doesn't say whether a card is needed, so half (10). Keys can be minted by API, but only with an existing Admin key, so a person still signs up in a browser first (0)." }, "scores": { "a": 40, "b": 30 } }, { "by": 6, "category": "transparency", "leads": "respan", "name": "Transparency \u0026 trust", "reasons": { "a": "MIT (30). Local data stays in .gauge/ and telemetry fields are listed; hosted data handling wasn't read (18 of 30). Dated changelog, no deprecation policy (10 of 20). Telemetry on by default, disclosed with an opt-out (20). 30 + 18 + 10 + 20 = 78.", "b": "Closed platform. The SDK monorepo is Apache-2.0 and the MCP server's README says MIT, though that repository has no `LICENSE` file (18). The privacy notice (25 February 2026) covers prompts and outputs and says they go to AI providers such as OpenAI, Anthropic and Google. Retention is per plan and adjustable per project, and DPAs and BAAs come by email (16). No deprecation policy found. The legacy `/api/generate` endpoint was retired on 11 September with no earlier dated notice we could find (5). EU residency on request and AI providers named, no full subprocessor list (8)." }, "scores": { "a": 53, "b": 59 } } ], "facts": [ { "a": "cli", "b": "HTTP API", "name": "Kind" }, { "a": "Gauge", "b": "Respan (formerly Keywords AI)", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.respan.ai/api", "name": "Hosted endpoint" }, { "a": "", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "None", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "Apache-2.0 (SDKs only, platform closed source)", "name": "Licence" }, { "a": "none", "b": "12", "name": "Tools exposed" }, { "a": "no", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-11-04", "b": "2026-10-19", "name": "Last release" }, { "a": "no document linked", "b": "2026-02-25", "name": "Terms last updated" }, { "a": "no document linked", "b": "2026-02-25", "name": "Privacy policy last updated" }, { "a": "not read yet", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not read yet", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not read yet", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not read yet", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "not read yet", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "270 npm/wk, 13k PyPI/wk", "name": "Popularity" }, { "a": "none", "b": "2.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Respan API + MCP scores 72 (BB) on agent readiness against Gauge CLI's 60.4 (C), and leads in 6 of 7 scored categories. Gauge CLI leads on payments \u0026 pricing.", "question": "Which is better for AI agents, Gauge CLI or Respan API + MCP?" }, { "answer": "No hosted endpoint is listed for Gauge CLI. Respan API + MCP has a hosted endpoint at https://api.respan.ai/api.", "question": "Can an agent call Gauge CLI and Respan API + MCP without installing anything?" }, { "answer": "Gauge CLI is open source (MIT). No open-source release is listed for Respan API + MCP.", "question": "Are Gauge CLI and Respan API + MCP open source?" } ], "goodFor": [ { "aheadOn": [ "Payments \u0026 pricing, 40 against 30" ], "also": [ "No key needed to call it", "Open source", "No incidents deducted, where Respan API + MCP loses 3 points for them" ], "goodFor": "Teams that build skills, CLIs, SDKs or MCP servers and want to see where coding agents get stuck with them, and to test fixes before release.", "slug": "gauge-cli", "watchFor": "Collects anonymous command usage by default, with an opt-out" }, { "aheadOn": [ "Reliability, 83 against 60", "Schema \u0026 documentation, 89 against 60", "Agent ergonomics, 90 against 75", "Security \u0026 auth, 74 against 55", "Transparency \u0026 trust, 59 against 53" ], "also": [ "Agent-ready, a grade of BB or better", "A hosted endpoint, with nothing to install" ], "goodFor": "Teams that want a gateway and tracing in one integration and an agent that can read logs and manage prompts, datasets and evaluators over MCP, read-only or not.", "slug": "respan", "watchFor": "Security fixes on 30 July, 28 August and 19 October 2026 disclosed only as one-line changelog entries" } ], "history": { "gauge-cli": null, "respan": [ { "causes": [ "product", "correction" ], "date": "2026-11-01", "delta": 6.3, "from": 65.7, "fromGrade": "B", "to": 72, "toGrade": "BB" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.2, "from": 65.5, "fromGrade": "B", "to": 65.7, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-08", "delta": -0.4, "from": 65.9, "fromGrade": "B", "to": 65.5, "toGrade": "B" } ] }, "job": { "capability": "obs.evals", "name": "Evaluations" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-tree-vs-respan.json", "title": "Agent Tree vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/agent-tree-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/agents-tree-vs-respan.json", "title": "agents-tree vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/agents-tree-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/arize-phoenix-vs-respan.json", "title": "Arize Phoenix vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/arize-phoenix-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/baserun-vs-respan.json", "title": "Baserun vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/baserun-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/botgauge-vs-respan.json", "title": "BotGauge vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/botgauge-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/braintrust-vs-respan.json", "title": "Braintrust API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/braintrust-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/galileo-vs-respan.json", "title": "Galileo API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/galileo-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/helicone-vs-respan.json", "title": "Helicone AI Gateway + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/helicone-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/honeyhive-vs-respan.json", "title": "HoneyHive vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/honeyhive-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/laminar-vs-respan.json", "title": "Laminar API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/laminar-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/langfuse-vs-respan.json", "title": "Langfuse API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/langfuse-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/langsmith-vs-respan.json", "title": "LangSmith API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/langsmith-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/langwatch-vs-respan.json", "title": "LangWatch vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/langwatch-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/mlflow-tracing-vs-respan.json", "title": "MLflow Tracing vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/mlflow-tracing-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/opik-vs-respan.json", "title": "Opik API + MCP vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/opik-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/overmind-vs-respan.json", "title": "Overmind vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/overmind-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/prefactor-vs-respan.json", "title": "Prefactor vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/prefactor-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/pydantic-logfire-vs-respan.json", "title": "Pydantic Logfire vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/pydantic-logfire-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/respan-vs-wandb-weave.json", "title": "Respan API + MCP vs W\u0026B Weave", "url": "https://www.anchorterminal.com/compare/respan-vs-wandb-weave" }, { "json": "https://www.anchorterminal.com/compare/arize-phoenix-vs-gauge-cli.json", "title": "Arize Phoenix vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/arize-phoenix-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/baserun-vs-gauge-cli.json", "title": "Baserun vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/baserun-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/botgauge-vs-gauge-cli.json", "title": "BotGauge vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/botgauge-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/braintrust-vs-gauge-cli.json", "title": "Braintrust API + MCP vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/braintrust-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/deepeval-vs-gauge-cli.json", "title": "DeepEval vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/deepeval-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/deepeval-vs-respan.json", "title": "DeepEval vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/deepeval-vs-respan" }, { "json": "https://www.anchorterminal.com/compare/galileo-vs-gauge-cli.json", "title": "Galileo API + MCP vs Gauge CLI", "url": "https://www.anchorterminal.com/compare/galileo-vs-gauge-cli" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-helicone.json", "title": "Gauge CLI vs Helicone AI Gateway + MCP", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-helicone" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-honeyhive.json", "title": "Gauge CLI vs HoneyHive", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-honeyhive" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-laminar.json", "title": "Gauge CLI vs Laminar API + MCP", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-laminar" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-langfuse.json", "title": "Gauge CLI vs Langfuse API + MCP", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-langfuse" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-langsmith.json", "title": "Gauge CLI vs LangSmith API + MCP", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-langsmith" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-langwatch.json", "title": "Gauge CLI vs LangWatch", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-langwatch" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-mlflow-tracing.json", "title": "Gauge CLI vs MLflow Tracing", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-mlflow-tracing" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-opik.json", "title": "Gauge CLI vs Opik API + MCP", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-opik" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-overmind.json", "title": "Gauge CLI vs Overmind", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-overmind" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-prefactor.json", "title": "Gauge CLI vs Prefactor", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-prefactor" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-pydantic-logfire.json", "title": "Gauge CLI vs Pydantic Logfire", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-pydantic-logfire" }, { "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-wandb-weave.json", "title": "Gauge CLI vs W\u0026B Weave", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-wandb-weave" }, { "json": "https://www.anchorterminal.com/compare/navige-vs-respan.json", "title": "Navige vs Respan API + MCP", "url": "https://www.anchorterminal.com/compare/navige-vs-respan" } ], "panel": null, "scores": [ { "by": 23, "edge": "respan", "gauge-cli": 60, "key": "reliability", "name": "Reliability", "respan": 83, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 29, "edge": "respan", "gauge-cli": 60, "key": "schema", "name": "Schema \u0026 documentation", "respan": 89, "weight": 13 }, { "by": 15, "edge": "respan", "gauge-cli": 75, "key": "ergonomics", "name": "Agent ergonomics", "respan": 90, "weight": 13 }, { "by": 19, "edge": "respan", "gauge-cli": 55, "key": "security", "name": "Security \u0026 auth", "respan": 74, "weight": 14 }, { "by": 10, "edge": "gauge-cli", "gauge-cli": 40, "key": "payments", "name": "Payments \u0026 pricing", "respan": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 3, "edge": "respan", "gauge-cli": 82, "key": "maintenance", "name": "Maintenance \u0026 community", "respan": 85, "weight": 7 }, { "by": 6, "edge": "respan", "gauge-cli": 53, "key": "transparency", "name": "Transparency \u0026 trust", "respan": 59, "weight": 7 } ], "summary": "Respan API + MCP scores 72 (BB) on agent readiness against Gauge CLI's 60.4 (C), and leads in 6 of 7 scored categories. Gauge CLI leads on payments \u0026 pricing. Both do evaluations.", "tasks": null, "tutorials": [], "verdicts": { "gauge-cli": "An open-source CLI that measures how coding agents get on with your product and checks fixes before you ship them, locally in Docker with no account. It's young and pre-1.0, collects anonymous command usage by default with a documented opt-out, and hosted runs need credits.", "respan": "Project-bound API keys with Read, Write, Gateway and Admin scopes, and since October a hosted MCP server that lists twelve tools, annotates every tool and connects read-only by default. Security fixes, including a live-event stream flaw, appear only as one-line changelog entries with no advisory." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/gauge-cli-vs-respan", "json": "https://www.anchorterminal.com/compare/gauge-cli-vs-respan.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/gauge-cli-vs-respan.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/gauge-cli-vs-respan.min.md" }, "markdown": "Respan API + MCP scores 72 (BB) on agent readiness against Gauge CLI's 60.4 (C), and leads in 6 of 7 scored categories. Gauge CLI leads on payments \u0026 pricing. Both do evaluations.\n\n- Gauge CLI: grade C, 60.4/100, rank #590 of 1354. Markdown https://www.anchorterminal.com/tools/gauge-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/gauge-cli.json\n- Respan API + MCP: grade BB, 72/100, rank #128 of 1354. Markdown https://www.anchorterminal.com/tools/respan.md · JSON https://www.anchorterminal.com/api/v1/tools/respan.json\n- Best agent tracing, monitoring and evaluation tools: https://www.anchorterminal.com/best/agent-observability/index.md\n- All 250 evals comparisons: https://www.anchorterminal.com/compare/agent-observability/index.md\n\n## Which one, for what\n\n### Gauge CLI (C)\n\nGood for: Teams that build skills, CLIs, SDKs or MCP servers and want to see where coding agents get stuck with them, and to test fixes before release.\n\nAhead on:\n- Payments \u0026 pricing, 40 against 30\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n- No incidents deducted, where Respan API + MCP loses 3 points for them\n\nWatch for: Collects anonymous command usage by default, with an opt-out\n\n### Respan API + MCP (BB)\n\nGood for: Teams that want a gateway and tracing in one integration and an agent that can read logs and manage prompts, datasets and evaluators over MCP, read-only or not.\n\nAhead on:\n- Reliability, 83 against 60\n- Schema \u0026 documentation, 89 against 60\n- Agent ergonomics, 90 against 75\n- Security \u0026 auth, 74 against 55\n- Transparency \u0026 trust, 59 against 53\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- A hosted endpoint, with nothing to install\n\nWatch for: Security fixes on 30 July, 28 August and 19 October 2026 disclosed only as one-line changelog entries\n\n\n## Why the edge\n\n### Schema \u0026 documentation: Respan API + MCP +29\n\n- Gauge CLI (60): CLI reading. No machine-readable contract, -o json on read commands (10 of 25). No llms.txt; instructions bundled in the CLI for agents (5). The README says what it finds and when local or hosted fits (16 of 20). Commands with help text; typed flags (9 of 15). Worked examples, no error reference (8 of 15). Dated changelog and semver tags (12 of 15). 10 + 5 + 16 + 9 + 8 + 12 = 60.\n- Respan API + MCP (89): OpenAPI 3.1 at respan.ai/docs/openapi.json with 40 or more paths, and every MCP tool takes a zod schema (25). llms.txt, per-section llms.txt and `.md` for every page (10). MCP descriptions say when to use a tool and when not to. `list_logs` tells the model to filter server-side rather than fetch everything and to call `get_log_detail` for full data, and `delete_dataset` says it can't be undone (17). Typed inputs with operator enums, but `page_size` bounds sit in the description rather than the schema and filter values are `any` (11). Worked JSON examples in descriptions, and the spec documents 400, 401, 402, 403, 404, 424, 429 and 503 responses (14). Weekly dated changelog. API paths mix `/api/` and `/api/v1/` with no version policy (12).\n\n### Reliability: Respan API + MCP +23\n\n- Gauge CLI (60): Local package. Installs from npm as @withgauge/cli with Node 22.13 or later and Docker stated (20). checks.yml runs npm run check on push and pull request across a matrix, and the repository has 76 test files; whether main passes wasn't read (20 of 25). Issues weren't read (5, unchecked). A dated changelog with Added sections per release (15). Version 0.28.0 (0). 20 + 20 + 5 + 15 + 0 = 60.\n- Respan API + MCP (83): Better Stack page at status.respan.ai with six components (web, logging and gateway, each for the platform and Enterprise) and an incident history page (20). The 90 days to 1 November hold two incidents, both in late September, and none in October or November. The Responses API path through the gateway was affected for OpenAI and Anthropic requests for 13 hours 47 minutes on 26 September, and request logs were delayed across all regions for 1 hour 58 minutes on 29 September. The first affected about 0.5 per cent of OpenAI and Anthropic requests on that path. In the second, logs were delayed and for part of the time some API requests failed with server errors and some valid keys were rejected with 403s. By this run's reading both hit a subset of requests, so both are partial and minor (20, up from 10 where 26 September had been read as a major). Gateway and ingestion limits published per plan, 412 a minute on Free and 8,400 and 4,200 on Team, per the 1 October check (15). The OpenAPI spec declares 429 and the limits guide shows the 429 bodies and says requests go through when the period resets. We found no `Retry-After` or backoff guidance (10). The pricing page listed a 99.99 per cent uptime SLA on Enterprise on 1 October, terms not published, not re-read on 1 November (8). Gateway, logging and MCP are GA (10). 20 + 20 + 15 + 10 + 8 + 10 = 83.\n\n### Security \u0026 auth: Respan API + MCP +19\n\n- Gauge CLI (55): Local tool. Agent credentials stay on your machine in local mode; hosted login with a device flow (20 of 30). Test agents run in fresh Docker sessions with injected inputs, and the gateway brokers credentials in hosted mode (12 of 20). Agents under test read your product's docs and outputs, with no prompt-injection guidance (5 of 15). Local transcripts and SQLite evidence per run (10 of 15). No security policy found (8 of 20). 20 + 12 + 5 + 10 + 8 = 55.\n- Respan API + MCP (74): API keys carry Read, Write, Gateway and Admin scopes since 25 September, can have an expiry and spend caps, are bound to one project and stop working at once when revoked. The MCP server also takes OAuth, now with `mcp:read` and `mcp:write` scopes (30). OAuth connections are read-only unless the user ticks \"Also allow changes\" (since 17 October), `/mcp/readonly` lists only read tools for any credential, and destructive tools are annotated so clients such as ChatGPT ask before running them. No confirmation step inside Respan itself (18, as exa-mcp). Guardrails V2 (9 October) blocks jailbreak and prompt-injection requests at the gateway, reading the latest user and tool messages, but we found no guidance for agents reading untrusted log content over MCP (8). Every gateway call is logged against its key. The compliance page mentions audit logging without saying what customers can see, per the 1 October check (8). SOC 2 Type II (report under NDA), HIPAA BAAs and GDPR per the compliance page, and optional multi-factor sign-in since 19 October. No security.txt or SECURITY.md, and security fixes appear in the changelog as one-liners (10). 30 + 18 + 8 + 8 + 10 = 74.\n\n### Agent ergonomics: Respan API + MCP +15\n\n- Gauge CLI (75): CLI reading for an agent driving it. Bundled instructions match the installed version, and output is filterable with -o json (20 of 25). Run summaries and Findings with queryable fields (15 of 20). Errors not documented as a reference (10 of 20). Reruns from checkpoints and a recheck command with a confirm step (15 of 20). Four commands to start, Node only (15 of 15). 20 + 15 + 10 + 15 + 15 = 75.\n- Respan API + MCP (90): Since 21 October the hosted MCP server's `tools/list` shows ten everyday tools (logs, traces, metrics, errors, behaviours, prompts) plus `tool_search` and `tool_run`, with listed descriptions cut to 300 characters and full contracts on request (15 for 12 tools). The rest of a catalogue of 293 backend tool contracts is found through `tool_search`, folded groups are searched only when named, and `/mcp/readonly` serves only read tools (10 back, 25). `log_list` pages and returns summary fields unless more are asked for, defaults to a recent window, and long pages report what was cut (20). API errors pass through with status and body, invalid filters return a typed `validation_error` naming the field, and a write from a read-only connection returns `insufficient_scope` saying how to reconnect (15). Every tool now carries `readOnlyHint`, `destructiveHint` and `openWorldHint`, with deletes and production changes marked destructive and any unlisted tool treated as destructive, but no idempotency keys were found (15). Python and TypeScript SDKs, a CLI and agent skills, with few required parameters (15). 25 + 20 + 15 + 15 + 15 = 90.\n\n### Payments \u0026 pricing: Gauge CLI +10\n\n- Gauge CLI (40): Scored on the hosted option. No payment protocol (0). Credit prices weren't found on the pages read (0). Local mode is free with no card (20). Local mode needs no sign-up (20). 0 + 0 + 20 + 20 = 40.\n- Respan API + MCP (30): No x402 or other machine payment (0). Overage prices published without login, $8 per 100,000 logs and $1 per 1,000 scores on Team (20). The Free plan has 100,000 logs and unlimited seats. The pricing page doesn't say whether a card is needed, so half (10). Keys can be minted by API, but only with an existing Admin key, so a person still signs up in a browser first (0).\n\n### Transparency \u0026 trust: Respan API + MCP +6\n\n- Gauge CLI (53): MIT (30). Local data stays in .gauge/ and telemetry fields are listed; hosted data handling wasn't read (18 of 30). Dated changelog, no deprecation policy (10 of 20). Telemetry on by default, disclosed with an opt-out (20). 30 + 18 + 10 + 20 = 78.\n- Respan API + MCP (59): Closed platform. The SDK monorepo is Apache-2.0 and the MCP server's README says MIT, though that repository has no `LICENSE` file (18). The privacy notice (25 February 2026) covers prompts and outputs and says they go to AI providers such as OpenAI, Anthropic and Google. Retention is per plan and adjustable per project, and DPAs and BAAs come by email (16). No deprecation policy found. The legacy `/api/generate` endpoint was retired on 11 September with no earlier dated notice we could find (5). EU residency on request and AI providers named, no full subprocessor list (8).\n\n## Score by category\n\n| Category | Weight | Gauge CLI | Respan API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 83 | Respan API + MCP +23 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 60 | 89 | Respan API + MCP +29 |\n| Agent ergonomics | 13% (16.2 this run) | 75 | 90 | Respan API + MCP +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 55 | 74 | Respan API + MCP +19 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 30 | Gauge CLI +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 85 | Respan API + MCP +3 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 53 | 59 | Respan API + MCP +6 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **60.4 · C** | **72 · BB** | |\n\n## Facts side by side\n\n| Fact | Gauge CLI | Respan API + MCP |\n| --- | --- | --- |\n| Kind | cli | HTTP API |\n| Vendor | Gauge | Respan (formerly Keywords AI) |\n| Hosted endpoint | no (local only) | `https://api.respan.ai/api` |\n| Transports | | HTTP, Streamable HTTP |\n| Auth | None | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | MIT | Apache-2.0 (SDKs only, platform closed source) |\n| Tools exposed | none | 12 |\n| Read-only variant documented | no | yes |\n| llms.txt | no | yes |\n| Last release | 2026-11-04 | 2026-10-19 |\n| Terms last updated | no document linked | 2026-02-25 |\n| Privacy policy last updated | no document linked | 2026-02-25 |\n| Customer content may train models | not read yet | not found in the text |\n| Terms restrict automated access | not read yet | yes |\n| Terms restrict benchmarking | not read yet | yes |\n| Terms or service can change without notice | not read yet | yes |\n| Arbitration or class-action waiver | not read yet | yes |\n| Popularity | none | 270 npm/wk, 13k PyPI/wk |\n| Agent reviews | none | 2.5/5 (2) |\n\n## How the scores have moved\n\n### Gauge CLI\n\nNo score change since it was listed.\n\n### Respan API + MCP\n\n- +6.3 on 1 November 2026 (B to BB): product, correction\n- +0.2 on 27 October 2026: checklist\n- -0.4 on 8 October 2026: checklist\n\n## Verdicts\n\n**Gauge CLI.** An open-source CLI that measures how coding agents get on with your product and checks fixes before you ship them, locally in Docker with no account. It's young and pre-1.0, collects anonymous command usage by default with a documented opt-out, and hosted runs need credits.\n\n**Respan API + MCP.** Project-bound API keys with Read, Write, Gateway and Admin scopes, and since October a hosted MCP server that lists twelve tools, annotates every tool and connects read-only by default. Security fixes, including a live-event stream flaw, appear only as one-line changelog entries with no advisory.\n\n## Before you call either\n\n### Gauge CLI\n\n1. npm install -g @withgauge/cli, then gauge local runtime pull and gauge init --local in the project\n2. Run gauge install-skill so your coding agent finds the CLI's own instructions\n3. Set GAUGE_TELEMETRY_DISABLED=1 in CI if you don't want command usage collected\n4. Rebuild and pack an npm CLI or SDK before rerunning, so test sessions get the new tarball\n5. Keep .gauge/ private; it holds measurements and analyses\n\n### Respan API + MCP\n\n1. Connect to https://mcp.respan.ai/mcp/readonly for agents that only analyse logs, or use a key with only the Read scope\n2. Call `tool_search` with resource and action words to find tools that aren't listed, then `tool_run` with the returned schema\n3. Pass `filters` to `log_list` rather than paging through everything. The default window is recent\n4. Call `project_list` first when results look empty over OAuth. Every tool acts on the active project only\n5. Append `.md` to any docs URL for clean Markdown\n\n## Questions\n\n### Which is better for AI agents, Gauge CLI or Respan API + MCP?\n\nRespan API + MCP scores 72 (BB) on agent readiness against Gauge CLI's 60.4 (C), and leads in 6 of 7 scored categories. Gauge CLI leads on payments \u0026 pricing.\n\n### Can an agent call Gauge CLI and Respan API + MCP without installing anything?\n\nNo hosted endpoint is listed for Gauge CLI. Respan API + MCP has a hosted endpoint at https://api.respan.ai/api.\n\n### Are Gauge CLI and Respan API + MCP open source?\n\nGauge CLI is open source (MIT). No open-source release is listed for Respan API + MCP.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/gauge-cli-vs-respan.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gauge-cli-vs-respan.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"gauge-cli\", \"b\": \"respan\"}`. From a terminal: `anchor compare gauge-cli respan`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gauge-cli.json and https://www.anchorterminal.com/api/v1/tools/respan.json\n\n## Other comparisons with Gauge CLI or Respan API + MCP\n\n- [Agent Tree vs Respan API + MCP](https://www.anchorterminal.com/compare/agent-tree-vs-respan.md)\n- [agents-tree vs Respan API + MCP](https://www.anchorterminal.com/compare/agents-tree-vs-respan.md)\n- [Arize Phoenix vs Respan API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-respan.md)\n- [Baserun vs Respan API + MCP](https://www.anchorterminal.com/compare/baserun-vs-respan.md)\n- [BotGauge vs Respan API + MCP](https://www.anchorterminal.com/compare/botgauge-vs-respan.md)\n- [Braintrust API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/braintrust-vs-respan.md)\n- [Galileo API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/galileo-vs-respan.md)\n- [Helicone AI Gateway + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/helicone-vs-respan.md)\n- [HoneyHive vs Respan API + MCP](https://www.anchorterminal.com/compare/honeyhive-vs-respan.md)\n- [Laminar API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/laminar-vs-respan.md)\n- [Langfuse API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/langfuse-vs-respan.md)\n- [LangSmith API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/langsmith-vs-respan.md)\n- [LangWatch vs Respan API + MCP](https://www.anchorterminal.com/compare/langwatch-vs-respan.md)\n- [MLflow Tracing vs Respan API + MCP](https://www.anchorterminal.com/compare/mlflow-tracing-vs-respan.md)\n- [Opik API + MCP vs Respan API + MCP](https://www.anchorterminal.com/compare/opik-vs-respan.md)\n- [Overmind vs Respan API + MCP](https://www.anchorterminal.com/compare/overmind-vs-respan.md)\n- [Prefactor vs Respan API + MCP](https://www.anchorterminal.com/compare/prefactor-vs-respan.md)\n- [Pydantic Logfire vs Respan API + MCP](https://www.anchorterminal.com/compare/pydantic-logfire-vs-respan.md)\n- [Respan API + MCP vs W\u0026B Weave](https://www.anchorterminal.com/compare/respan-vs-wandb-weave.md)\n- [Arize Phoenix vs Gauge CLI](https://www.anchorterminal.com/compare/arize-phoenix-vs-gauge-cli.md)\n- [Baserun vs Gauge CLI](https://www.anchorterminal.com/compare/baserun-vs-gauge-cli.md)\n- [BotGauge vs Gauge CLI](https://www.anchorterminal.com/compare/botgauge-vs-gauge-cli.md)\n- [Braintrust API + MCP vs Gauge CLI](https://www.anchorterminal.com/compare/braintrust-vs-gauge-cli.md)\n- [DeepEval vs Gauge CLI](https://www.anchorterminal.com/compare/deepeval-vs-gauge-cli.md)\n- [DeepEval vs Respan API + MCP](https://www.anchorterminal.com/compare/deepeval-vs-respan.md)\n- [Galileo API + MCP vs Gauge CLI](https://www.anchorterminal.com/compare/galileo-vs-gauge-cli.md)\n- [Gauge CLI vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/gauge-cli-vs-helicone.md)\n- [Gauge CLI vs HoneyHive](https://www.anchorterminal.com/compare/gauge-cli-vs-honeyhive.md)\n- [Gauge CLI vs Laminar API + MCP](https://www.anchorterminal.com/compare/gauge-cli-vs-laminar.md)\n- [Gauge CLI vs Langfuse API + MCP](https://www.anchorterminal.com/compare/gauge-cli-vs-langfuse.md)\n- [Gauge CLI vs LangSmith API + MCP](https://www.anchorterminal.com/compare/gauge-cli-vs-langsmith.md)\n- [Gauge CLI vs LangWatch](https://www.anchorterminal.com/compare/gauge-cli-vs-langwatch.md)\n- [Gauge CLI vs MLflow Tracing](https://www.anchorterminal.com/compare/gauge-cli-vs-mlflow-tracing.md)\n- [Gauge CLI vs Opik API + MCP](https://www.anchorterminal.com/compare/gauge-cli-vs-opik.md)\n- [Gauge CLI vs Overmind](https://www.anchorterminal.com/compare/gauge-cli-vs-overmind.md)\n- [Gauge CLI vs Prefactor](https://www.anchorterminal.com/compare/gauge-cli-vs-prefactor.md)\n- [Gauge CLI vs Pydantic Logfire](https://www.anchorterminal.com/compare/gauge-cli-vs-pydantic-logfire.md)\n- [Gauge CLI vs W\u0026B Weave](https://www.anchorterminal.com/compare/gauge-cli-vs-wandb-weave.md)\n- [Navige vs Respan API + MCP](https://www.anchorterminal.com/compare/navige-vs-respan.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-06", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": 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Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Gauge CLI C 60.4", "Respan API + MCP BB 72", "scores" ], "h1": "Gauge CLI vs Respan API + MCP", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/gauge-cli-vs-respan", "published": "2026-10-01", "section": "tools", "title": "Gauge CLI vs Respan for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-06", "url": "https://www.anchorterminal.com/compare/gauge-cli-vs-respan" }, "tokens": { "markdown": 4850, "slim": 2730 }, "version": 1 }