{ "data": { "a": { "slug": "grep-ai", "name": "Grep AI", "vendor": "Parcha Labs, Inc.", "vendorUrl": "https://grep.ai", "kind": "http-api", "category": "search", "summary": "Grep is a hosted platform from Parcha Labs for building and running research agents that return cited reports and structured output. Outside agents reach it through a REST API, a remote MCP server, an A2A endpoint and two SDKs.", "url": "https://www.anchorterminal.com/tools/grep-ai", "markdownUrl": "https://www.anchorterminal.com/tools/grep-ai.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/grep-ai.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/grep-ai.json", "dns": "grep-ai.grade.anchorterminal.com", "repo": "https://github.com/Parcha-ai/grepai-skills", "license": "Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.grep.ai/api/v2/runs", "packages": [ { "registry": "npm", "name": "@parcha/agentrun" }, { "registry": "pypi", "name": "parcha-agentrun" }, { "registry": "npm", "name": "grep-research-skills" } ], "auth": "mixed", "authNotes": "A Bearer credential on every call except the public agent list and publicly shared runs. Self-serve API keys (`parcha-` prefix) are created in the developer dashboard or at POST /api/v2/keys, and can be listed and revoked. The MCP server and delegated integrations take OAuth access tokens issued by Descope, with scopes research:read, research:write, billing:read, experts:read and experts:write. An agent with an AgentMail inbox can sign in through AgentID with an Ed25519 key and no human account. No partner or sales approval is documented for the self-serve plans.", "pricing": "freemium", "pricingNotes": "Credits, with a medium-effort task counted as 20. The Free Trial has 100 one-time credits and the pricing table marks it without API access, while the 4 October 2026 changelog says new personal accounts start with 500 Wallet credits. Pay As You Go tops up a wallet from $20, also marked without API access. Pro is $200 a month for 1,500 credits and Ultra $500 for 4,500, both with API access. Team plans go through sales. The page says $20 buys 200 credits and its Markdown twin says 100. Whether signup needs a card isn't stated (https://grep.ai/pricing, checked 2026-11-02).", "priceSummary": "$200 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "Not available. The changelog entry of 8 May 2026 announces x402 and MPP payments for API research, but GET https://api.grep.ai/mpp/v1/api returned 503 `gateway_disabled` (\"MPP gateway is disabled on this deployment\") on 8 October and 2 November 2026, and the grep-research-skills README says the wallet path returns once the gateway is generally available (checked 2026-11-02).", "endpoints": [] }, "toolCount": 137, "popularity": { "githubStars": null, "npmWeekly": 334, "pypiWeekly": 52, "asOf": "2026-10-08" }, "docsUrl": "https://grep.ai/developers", "llmsTxt": "https://grep.ai/llms.txt", "openapi": "https://api.grep.ai/api/v2/openapi.json", "capabilities": [ "search.research", "search.answer", "kyc.business", "kyc.screening", "kyc.documents" ], "tags": [ "hosted", "freemium", "mcp", "oauth", "openapi", "llms-txt", "python", "typescript", "async-jobs", "webhooks", "status-page" ], "lastRelease": "2026-10-20", "graded": true, "anchor": { "graded": true, "score": 62.9, "grade": "B", "agentReady": false, "rank": 535, "ranked": true, "rankOf": 1510, "categoryRank": 17, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 70, "maintenance": 74, "payments": 40, "reliability": 50, "schema": 83, "security": 64, "transparency": 61 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-02" }, "negative": 0, "verdict": "The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.", "bestFor": "Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.", "strengths": [ "Public OpenAPI document with 128 operations, llms.txt and a Markdown twin of every developer page", "OAuth with five scopes, plus API keys that can be minted, scoped and revoked through the API", "`Idempotency-Key` on run creation, with body-hash matching, a 24-hour replay window and named 409 codes", "`max_cost_usd` per run, quota pre-flight and batch cost estimates before billable work starts", "Documented agent sign-in through AgentID with no human account, and 500 free credits for an owner's first agent", "Dated changelog with 14 entries from 7 August to 20 October 2026" ], "weaknesses": [ "No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)", "The MCP server card lists 137 tools, 57 of them deprecated aliases, with one-line descriptions and no annotations", "The pricing table marks API access as Pro and Ultra only, from $200 a month", "The pricing page says $20 buys 200 credits and its Markdown twin says 100. Free credits are stated as 100, 500 and 1,000 on different pages", "The 8 May 2026 changelog entry announces x402 and MPP payments, but the gateway answered 503 `gateway_disabled` on 2 November 2026", "No security.txt, subprocessor list or retention period found. SOC 2 Type II appears only as a footer claim, and the \"Security \u0026 trust\" link opens a benchmarks page" ], "agentNotes": [ "Send a fresh `Idempotency-Key` with every POST /api/v2/runs. After a timeout, poll the returned run ID and do not post again", "Set `effort` and `max_cost_usd` on every run. The floor is $0.50 for low, $2.50 for medium and build, $5.00 for high", "Call GET /api/v2/quota/check before a run. A 402 means no credits and retrying won't help, while a 429 carries `Retry-After`", "Use the `run_*`, `agent_*` and `swarm_*` MCP tools at https://api.grep.ai/mcp. The `research_*`, `expert_*` and `campaign_*` names are deprecated aliases", "Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 62.9 } ], "editorialScores": { "ergonomics": 70, "maintenance": 74, "payments": 40, "reliability": 50, "schema": 83, "security": 64, "transparency": 36 }, "provenanceScore": 85, "checked": { "categories": { "ergonomics": "2026-11-02", "maintenance": "2026-11-02", "payments": "2026-11-02", "reliability": "2026-11-02", "schema": "2026-11-02", "security": "2026-11-02", "transparency": "2026-11-02" }, "last": "2026-11-02", "lastMoved": "2026-11-02", "oldest": "2026-11-02", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npm install @parcha/agentrun", "http": "curl -X POST \"https://api.grep.ai/api/v2/runs\" \\\n -H \"Authorization: Bearer $GREP_API_KEY\" \\\n -H \"Idempotency-Key: 8b9c1f24-3c1e-4a8d-9f7b-2a6e1c4d5b8e\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"question\":\"Due diligence on Stripe\",\"effort\":\"medium\"}'", "claudeCode": "claude mcp add --transport http grep https://api.grep.ai/mcp\nclaude mcp login grep", "config": { "mcpServers": { "grep": { "url": "https://api.grep.ai/mcp" } } } }, "letme": { "capability": "https://letme.dev/search.research", "tool": "https://letme.dev/grep-ai" }, "area": "web-data", "unitPrices": [ { "item": "Pro plan, 1,500 credits a month, API access", "unit": "month", "usd": 200, "note": "$167 a month billed annually" }, { "item": "Ultra plan, 4,500 credits a month", "unit": "month", "usd": 500, "note": "$417 a month billed annually" }, { "item": "Pay As You Go credit", "unit": "credit", "usd": 0.1, "note": "$20 for 200 credits on the pricing page. Its Markdown twin says 100 credits, which is $0.20. No API access on this plan per the table" } ], "provenance": { "legalEntity": "Parcha Labs, Inc.", "domain": "grep.ai", "domainRegistered": "2018-04-20", "domainNote": "Registered in 2018 and transferred on 2025-10-19, so the registration date predates the company's use of it.", "endpointOnVendorDomain": true, "terms": "https://grep.ai/terms", "privacy": "https://grep.ai/privacy", "statusPage": "https://status.grep.ai", "changelog": "https://grep.ai/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms of service, last updated 20 March 2026, are a contract with Parcha Labs, Inc., a Delaware corporation, governed by California law.", "The privacy policy, last updated 5 October 2026, names Parcha Labs, Inc. and the websites www.parcha.ai and grep.parcha.ai.", "The API, the MCP server and the A2A endpoint answer on api.grep.ai. OAuth tokens come from Descope at api.descope.com.", "grep.ai/.well-known/security.txt and api.grep.ai/.well-known/security.txt return 404. grep.ai/trust and grep.ai/security return 404.", "RDAP for grep.ai gives a registration date of 2018-04-20 and a transfer on 2025-10-19.", "The status page's support link is support@parcha.ai and its privacy link points to parcha.ai." ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/grep-ai.json", "live": { "slug": "grep-ai", "probe": { "target": "https://api.grep.ai/api/v2/runs", "method": "get", "lastAt": "2026-11-07T23:26:33.148933385Z", "lastOk": true, "lastStatus": 401, "lastMs": 381, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 99.92, "p50ms24h": 369, "p95ms24h": 463, "samples24h": 243, "samples30d": 7514, "days": [ { "date": "2026-10-08", "probes": 93, "ok": 93 }, { "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": 252 }, { "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": 252 }, { "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": 251, "ok": 250 }, { "date": "2026-10-29", "probes": 248, "ok": 248 }, { "date": "2026-10-30", "probes": 249, "ok": 248 }, { "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": 183 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 238, "ok": 238 } ] }, "vendorStatus": { "page": "https://status.grep.ai", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T23:31:44.242819192Z" }, "versions": [ { "registry": "github", "name": "Parcha-ai/grepai-skills", "version": "v0.2.0", "released": "2026-08-04", "seenAt": "2026-11-06T23:31:17.343670403Z" }, { "registry": "npm", "name": "@parcha/agentrun", "version": "0.3.6", "seenAt": "2026-11-06T23:31:15.147980263Z" }, { "registry": "npm", "name": "grep-research-skills", "version": "0.2.0", "seenAt": "2026-11-06T23:31:16.618593403Z" }, { "registry": "pypi", "name": "parcha-agentrun", "version": "0.2.1", "released": "2026-09-30", "seenAt": "2026-11-06T23:31:16.377788056Z" } ], "githubStars": 2, "npmWeekly": 336, "pypiWeekly": 21, "securityTxt": { "url": "https://grep.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:30.039104122Z" }, "llmsTxt": { "url": "https://grep.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:39.189807584Z" }, "domain": { "domain": "grep.ai", "registered": "2018-04-20", "source": "https://rdap.identitydigital.services/rdap/domain/grep.ai", "checkedAt": "2026-11-01T14:26:20.014848352Z" }, "pages": [ { "url": "https://grep.ai/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:10:39.133932414Z", "changedAt": "2026-11-06T13:32:44.195749968Z", "fingerprint": "b2c46460857a" }, { "url": "https://grep.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-07T14:10:41.715097295Z", "changedAt": "2026-11-06T13:32:46.726727473Z", "fingerprint": "b50267997523" }, { "url": "https://grep.ai/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:10:43.416139624Z", "changedAt": "2026-11-06T13:32:48.542806474Z", "fingerprint": "61f7ae5ed58d" }, { "url": "https://grep.ai/terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:10:45.461789114Z", "changedAt": "2026-11-06T13:32:50.740021371Z", "fingerprint": "b92beb6db8a5" } ], "mcpTools": { "url": "https://api.grep.ai/mcp", "checkedAt": "2026-11-07T01:45:17.533792685Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-11-07T01:45:17.533792685Z" }, "github": { "repo": "parcha-ai/grepai-skills", "checkedAt": "2026-11-02T09:14:59.133383273Z", "stars": 3, "archived": false, "issuesEnabled": true, "pushedAt": "2026-11-02T06:32:53Z", "openIssues": 1, "openPRs": 1, "issuesOpened90d": 0, "issuesClosed90d": 0, "prsMerged90d": 2, "ci": { "branch": "main", "runs": 2, "success": 2, "failure": 0, "other": 0, "latest": "success", "latestAt": "2026-09-30T18:10:13Z" }, "replies": { "sampled": 1, "unanswered": 1 } }, "updatedAt": "2026-11-07T23:31:44.242819192Z" } }, "answer": "Grep AI scores 62.9 (B) on agent readiness against Liner Search MCP's 43.4 (E), and leads in 6 of 7 scored categories.", "b": { "slug": "liner-mcp", "name": "Liner Search MCP", "vendor": "Liner", "vendorUrl": "https://liner.com", "kind": "mcp", "category": "search", "summary": "Liner Search MCP is a hosted server with web, scholarly, legal, finance, medical and business search tools and three agent tools for quick cited answers, search answers and deep research reports, over OAuth 2.1 or an API key.", "url": "https://www.anchorterminal.com/tools/liner-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/liner-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/liner-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/liner-mcp.json", "dns": "liner-mcp.grade.anchorterminal.com", "transports": [ "streamable-http" ], "remoteUrl": "https://platform.liner.com/api/v1/mcp", "packages": [], "auth": "oauth", "authNotes": "OAuth 2.1 sign-in in a browser, or a Bearer token with a Liner API key (LINER_API_KEY) for CI and headless use.", "pricing": "paid", "pricingNotes": "Search and Agent APIs are billed per call. Web search, scholar search and visualisation $1 per 1,000 requests; Quick Answer Agent $3 per 1,000 requests; the other agents' prices weren't readable. No free allowance found (checked 2026-11-07).", "priceSummary": "$1 / 1k req", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the MCP docs or pricing page (checked 2026-11-07).", "endpoints": [] }, "toolCount": 9, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://liner.com/developers/docs/mcp", "llmsTxt": "https://liner.com/llms.txt", "registryName": "com.liner/search", "capabilities": [ "search.serp", "search.research", "search.answer", "search.scholar" ], "tags": [ "official", "hosted", "mcp", "remote-mcp", "oauth", "api-key", "paid", "pay-per-call", "status-page", "llms-txt", "mcp-registry" ], "graded": true, "anchor": { "graded": true, "score": 43.4, "grade": "E", "agentReady": false, "rank": 1252, "ranked": true, "rankOf": 1510, "categoryRank": 23, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 65, "maintenance": 45, "payments": 20, "reliability": 50, "schema": 45, "security": 35, "transparency": 34 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-07" }, "negative": 0, "verdict": "Liner's MCP server puts cheap per-call web, scholarly and vertical search and cited research agents behind one OAuth URL, at $1 per 1,000 searches. The docs say which tool fits which question, but there's no free tier, no changelog, no injection guidance and no status component for the API.", "bestFor": "Agents that need cheap cited search across the web and scholarly sources, with optional deep research reports.", "strengths": [ "Web, scholarly, legal, finance, medical and business search plus three cited-answer agents", "Search at $1 per 1,000 requests, published", "Nine tools with a table saying which fits which need", "Rate limits published per API", "OAuth for people, API keys for CI" ], "weaknesses": [ "No free tier found", "No changelog; registry entry unchanged since September", "Status page covers the app, not the API or MCP", "Web content reaches the model with no injection guidance" ], "agentNotes": [ "Use search_scholar for papers and the domain tools for legal, finance, medical or business questions", "Deep research is slower and costs more; use quick_answer_agent for short lookups", "Treat search results and research reports as untrusted content", "Keep under 2 requests a second for scholar search and the agents" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 43.4 } ], "editorialScores": { "ergonomics": 65, "maintenance": 45, "payments": 20, "reliability": 50, "schema": 45, "security": 35, "transparency": 20 }, "provenanceScore": 48, "checked": { "categories": { "ergonomics": "2026-11-07", "maintenance": "2026-11-07", "payments": "2026-11-07", "reliability": "2026-11-07", "schema": "2026-11-07", "security": "2026-11-07", "transparency": "2026-11-07" }, "last": "2026-11-07", "oldest": "2026-11-07", "stale": false, "staleAfterDays": 90 } }, "connect": { "claudeCode": "claude mcp add liner --transport http https://platform.liner.com/api/v1/mcp", "config": { "mcpServers": { "liner": { "url": "https://platform.liner.com/api/v1/mcp" } } } }, "letme": { "capability": "https://letme.dev/search.serp", "tool": "https://letme.dev/liner-mcp" }, "area": "web-data", "unitPrices": [ { "item": "Web search", "unit": "1k-requests", "usd": 1, "note": "Also scholar search and visualisation" }, { "item": "Quick Answer Agent", "unit": "1k-requests", "usd": 3 } ], "provenance": { "legalEntity": "Liner", "domain": "liner.com", "domainRegistered": "", "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.", "endpointOnVendorDomain": true, "terms": "", "privacy": "", "statusPage": "https://status.liner.com", "changelog": "", "securityTxt": "none", "checked": "2026-11-07", "notes": [ "Terms and privacy weren't read in this batch.", "security.txt answered 404." ], "score": 48 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/liner-mcp.json", "live": { "slug": "liner-mcp", "probe": { "target": "https://platform.liner.com/api/v1/mcp", "method": "mcp-initialize", "lastAt": "2026-11-07T23:26:39.422662685Z", "lastOk": true, "lastStatus": 401, "lastMs": 181, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 207, "p95ms24h": 420, "samples24h": 48, "samples30d": 48, "days": [ { "date": "2026-11-07", "probes": 48, "ok": 48 } ] }, "vendorStatus": { "page": "https://status.liner.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T23:31:49.618926282Z" }, "updatedAt": "2026-11-07T23:31:49.618926282Z" } }, "edges": [ { "by": 38, "category": "schema", "leads": "grep-ai", "name": "Schema \u0026 documentation", "reasons": { "a": "Public OpenAPI document at api.grep.ai/api/v2/openapi.json, now 128 operations on 98 paths and 159 schemas (25). llms.txt and a Markdown twin of each developer page (10). Most operations carry a description, and the `effort` field says what each tier returns and how long it takes. 19 operations have none, and the MCP server card gives each of its 137 tools one line. The MCP input schemas need OAuth and weren't read (12). 75 enums, numeric bounds and `additionalProperties: false` on the run request (12). Curl examples and an 11-code error registry in the docs, but the OpenAPI document has no examples and documents only 200 and 422 responses (9). The path is versioned, v1 and 42 v2 operations are marked deprecated, and the dated changelog now runs to v3.71 on 20 October 2026, with 14 entries since 4 August (15).", "b": "Tool schemas not read without sign-in (15 of 25). llms.txt (10). A table says which tool fits which need, and that the domain tools return the same shape as search_web (12 of 20). Inputs not verifiable (3 of 15). Setup examples, no error responses (5 of 15). Registry version 1.0.0 since 11 September; no changelog found (0). 15 + 10 + 12 + 3 + 5 + 0 = 45." }, "scores": { "a": 83, "b": 45 } }, { "by": 29, "category": "security", "leads": "grep-ai", "name": "Security \u0026 auth", "reasons": { "a": "OAuth through Descope with five scopes, and API keys that can be created with a subset of scopes, listed and revoked through the API (30). Read scopes, `validate_only` and `dry_run` on agent changes, a per-run `max_cost_usd` and versioned restores. No confirmation step for deletes or for making a run public (14). Reports are built from untrusted web pages. The docs describe an SSRF-guarded fetch for context files, and no prompt-injection guidance for callers was found (3). Each run has a timeline of execution events, and billing transactions and usage are readable through the API (12). The footer claims SOC 2 Type II with no report linked, and its \"Security \u0026 trust\" link opens a performance benchmarks page. security.txt returns 404, and no disclosure policy or bug bounty was found, so this is a bare SOC 2 claim, which this run reads as 5 (5). Webhooks are signed with the API key itself.", "b": "OAuth 2.1 or an API key; scopes not published (20 of 30). All tools are reads (10 of 20). Results carry web pages and documents with no injection guidance (0). No audit log found (0). No security.txt (404) or security programme found (5 of 20). 20 + 10 + 0 + 0 + 5 = 35." }, "scores": { "a": 64, "b": 35 } }, { "by": 29, "category": "maintenance", "leads": "grep-ai", "name": "Maintenance \u0026 community", "reasons": { "a": "The changelog's newest entry is v3.71 on 20 October 2026, 13 days before this check (30). 14 dated changelog entries since 4 August, from v3.1.1 on 7 August to v3.71 on 20 October (20). Closed service with a public changelog and support at support@parcha.ai. We didn't test whether support answers (8). Current SDKs in two languages per the 8 October check (@parcha/agentrun and parcha-agentrun 0.2.1, 30 September), with docs that lag them. Not found in the official MCP registry (12). The skills repository runs a test workflow and hasn't changed since 30 September. The SDK repositories named in the package metadata asked for credentials, so their CI wasn't read (4). The 8 October PyPI reading came from a path pypi.org's robots.txt disallows and is struck; npm and PyPI didn't answer on 2 November.", "b": "Registry entry com.liner/search last updated 11 September 2026 (20). No dated changelog found (0). Support page linked from the docs (10 of 15). Official registry entry under its own namespace (15). No package to read (0). 20 + 0 + 10 + 15 + 0 = 45. Registry presence read from Anchor Terminal's own daily import of the official MCP registry (/api/v1/registry.json, 6 November 2026), not the registry's API." }, "scores": { "a": 74, "b": 45 } }, { "by": 27, "category": "transparency", "leads": "grep-ai", "name": "Transparency \u0026 trust", "reasons": { "a": "Closed service with published terms, written as an order-form contract that still points to grep.parcha.ai. The SDK packages state no licence, and the skills package is MIT (12). Section 12 of the terms says AI providers retain nothing and customer data isn't used for training. Section 4.2 grants a perpetual licence to use customer data to improve the platform, and the privacy policy gives retention only as \"as long as needed\". No DPA found (12). v1 is marked deprecated, /research answers with a `deprecation: true` header and a successor link, and 31 MCP tools are labelled deprecated, all without dates or a written policy (8). The privacy policy names Google Analytics and PostHog and says data may be processed in any country. No subprocessor list found (4).", "b": "Terms and privacy linked from the docs but not read in this batch (5 of 30). Data handling not read (5 of 30). No deprecation policy found for the MCP server; the docs note older endpoints priced per version (5 of 20). Subprocessors not read (5 of 20). 5 + 5 + 5 + 5 = 20." }, "scores": { "a": 61, "b": 34 } }, { "by": 20, "category": "payments", "leads": "grep-ai", "name": "Payments \u0026 pricing", "reasons": { "a": "No machine payment protocol on the live endpoints. The changelog of 8 May 2026 announces x402 and MPP, and the gateway answered 503 `gateway_disabled` on 8 October and again on 2 November 2026 (0). Plan and credit prices are public, but only the medium tier's credit cost is published and the page and its Markdown twin disagree on credits per dollar (10). 100 free trial credits on the pricing page, 500 Wallet credits for new personal accounts in the 4 October changelog entry, and 500 for an owner's first agent through AgentID. The pricing page doesn't say whether a card is needed, and its table marks the trial without API access (15). AgentID sign-in is documented as needing no human account, but it depends on an AgentMail inbox and a browser step, and we didn't run it (15).", "b": "No machine payment protocol (0). Per-call prices public (20). No free tier found (0). A person signs up in a browser for OAuth or an API key (0). 0 + 20 + 0 + 0 = 20." }, "scores": { "a": 40, "b": 20 } }, { "by": 5, "category": "ergonomics", "leads": "grep-ai", "name": "Agent ergonomics", "reasons": { "a": "The MCP server card lists 137 tools, 57 of them deprecated aliases, with no documented toolsets. Reports default to plain Markdown and large files come back as signed URLs, so some credit back (8). Cursor pagination with `limit` on runs, timelines and transactions, and server-side filters on the skill and tool lists (18). One error envelope with stable codes and a `request_id`, and 402 for credits kept apart from 429 for rate (20). `Idempotency-Key` with body-hash matching and a 24-hour replay window. The server card shows no readOnlyHint or destructiveHint annotations, and the live tool list wasn't read (12). Only `question` is required and `effort` defaults to low. TypeScript and Python SDKs exist, though one docs page still calls the release pending and names a PyPI package that returns 404 (12).", "b": "Nine tools (25). No paging or size controls documented (5 of 20). 429 codes documented for the API (8 of 20). All tools read; annotations not read (12 of 20). One URL with OAuth, few required inputs and an OpenAI-compatible API (15). 25 + 5 + 8 + 12 + 15 = 65." }, "scores": { "a": 70, "b": 65 } } ], "facts": [ { "a": "HTTP API", "b": "MCP server", "name": "Kind" }, { "a": "Parcha Labs, Inc.", "b": "Liner", "name": "Vendor" }, { "a": "https://api.grep.ai/api/v2/runs", "b": "https://platform.liner.com/api/v1/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata", "b": "none", "name": "Licence" }, { "a": "137", "b": "9", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "not listed", "b": "com.liner/search", "name": "MCP registry" }, { "a": "2026-10-20", "b": "none", "name": "Last release" }, { "a": "2026-03-20", "b": "no document linked", "name": "Terms last updated" }, { "a": "2026-09-21", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not read yet", "name": "Customer content may train models" }, { "a": "yes", "b": "not read yet", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not read yet", "name": "Arbitration or class-action waiver" }, { "a": "334 npm/wk, 52 PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "3/5 (4)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Grep AI scores 62.9 (B) on agent readiness against Liner Search MCP's 43.4 (E), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Grep AI or Liner Search MCP?" }, { "answer": "Grep AI takes an API key or an OAuth sign-in. Liner Search MCP uses an OAuth sign-in.", "question": "Do Grep AI and Liner Search MCP need an API key?" }, { "answer": "Yes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Liner Search MCP at https://platform.liner.com/api/v1/mcp.", "question": "Can an agent call Grep AI and Liner Search MCP without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 83 against 45", "Agent ergonomics, 70 against 65", "Security \u0026 auth, 64 against 35", "Payments \u0026 pricing, 40 against 20", "Maintenance \u0026 community, 74 against 45", "Transparency \u0026 trust, 61 against 34" ], "also": null, "goodFor": "Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.", "slug": "grep-ai", "watchFor": "No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)" }, { "aheadOn": null, "also": null, "goodFor": "Agents that need cheap cited search across the web and scholarly sources, with optional deep research reports.", "slug": "liner-mcp", "watchFor": "No free tier found" } ], "history": { "grep-ai": [ { "causes": [ "reliability", "product", "correction" ], "date": "2026-11-02", "delta": -1.7, "from": 64.6, "fromGrade": "B", "to": 62.9, "toGrade": "B" }, { "causes": [ "evidence" ], "date": "2026-10-27", "delta": 0.2, "from": 64.4, "fromGrade": "B", "to": 64.6, "toGrade": "B" } ], "liner-mcp": null }, "job": { "capability": "search.research", "name": "Research search" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai.json", "title": "Web Search Tool on Amazon Bedrock AgentCore vs Grep AI", "url": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.json", "title": "Cloudflare Web Search API vs Grep AI", "url": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai.json", "title": "DeepSeek Search and Fetch API vs Grep AI", "url": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-grep-ai.json", "title": "Firecrawl MCP vs Grep AI", "url": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.json", "title": "Grep AI vs Kagi Search API", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-mojeek.json", "title": "Grep AI vs Mojeek Web Search API", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-mojeek" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-searchapi-io.json", "title": "Grep AI vs SearchAPI.io", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-searchapi-io" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serpapi.json", "title": "Grep AI vs SerpApi", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serpapi" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serper.json", "title": "Grep AI vs Serper", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serper" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serpkite.json", "title": "Grep AI vs SerpKite", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serpkite" }, { "json": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.json", "title": "Arcmira vs Grep AI", "url": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/arcmira-vs-liner-mcp.json", "title": "Arcmira vs Liner Search MCP", "url": "https://www.anchorterminal.com/compare/arcmira-vs-liner-mcp" }, { "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.json", "title": "Exa API + MCP vs Grep AI", "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-liner-mcp.json", "title": "Exa API + MCP vs Liner Search MCP", "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-liner-mcp" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-linkup.json", "title": "Grep AI vs Linkup", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-linkup" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-newscatcher.json", "title": "Grep AI vs NewsCatcher", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-newscatcher" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api.json", "title": "Grep AI vs Parallel Search and Task APIs", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.json", "title": "Grep AI vs Perplexity Search API", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-specstream.json", "title": "Grep AI vs SpecStream", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-specstream" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp.json", "title": "Grep AI vs Tavily API + MCP", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search.json", "title": "Grep AI vs TinyFish Search", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu.json", "title": "Grep AI vs Valyu", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api.json", "title": "Grep AI vs You.com APIs", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-linkup.json", "title": "Liner Search MCP vs Linkup", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-linkup" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-newscatcher.json", "title": "Liner Search MCP vs NewsCatcher", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-newscatcher" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-parallel-search-api.json", "title": "Liner Search MCP vs Parallel Search and Task APIs", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-parallel-search-api" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api.json", "title": "Liner Search MCP vs Perplexity Search API", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-specstream.json", "title": "Liner Search MCP vs SpecStream", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-specstream" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-tavily-mcp.json", "title": "Liner Search MCP vs Tavily API + MCP", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-tavily-mcp" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-tinyfish-search.json", "title": "Liner Search MCP vs TinyFish Search", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-tinyfish-search" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-valyu.json", "title": "Liner Search MCP vs Valyu", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-you-com-api.json", "title": "Liner Search MCP vs You.com APIs", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-you-com-api" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-searchapi-io.json", "title": "Liner Search MCP vs SearchAPI.io", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-searchapi-io" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-serpapi.json", "title": "Liner Search MCP vs SerpApi", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-serpapi" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-serper.json", "title": "Liner Search MCP vs Serper", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-serper" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-serphouse.json", "title": "Liner Search MCP vs SERPHouse", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-serphouse" }, { "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-serpkite.json", "title": "Liner Search MCP vs SerpKite", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-serpkite" }, { "json": "https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai.json", "title": "Grounding with Bing Search vs Grep AI", "url": "https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai" }, { "json": "https://www.anchorterminal.com/compare/bing-grounding-vs-liner-mcp.json", "title": "Grounding with Bing Search vs Liner Search MCP", "url": "https://www.anchorterminal.com/compare/bing-grounding-vs-liner-mcp" }, { "json": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai.json", "title": "Brave Search API + MCP vs Grep AI", "url": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai" } ], "panel": null, "scores": [ { "by": 0, "edge": "", "grep-ai": 50, "key": "reliability", "liner-mcp": 50, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 38, "edge": "grep-ai", "grep-ai": 83, "key": "schema", "liner-mcp": 45, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 5, "edge": "grep-ai", "grep-ai": 70, "key": "ergonomics", "liner-mcp": 65, "name": "Agent ergonomics", "weight": 13 }, { "by": 29, "edge": "grep-ai", "grep-ai": 64, "key": "security", "liner-mcp": 35, "name": "Security \u0026 auth", "weight": 14 }, { "by": 20, "edge": "grep-ai", "grep-ai": 40, "key": "payments", "liner-mcp": 20, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 29, "edge": "grep-ai", "grep-ai": 74, "key": "maintenance", "liner-mcp": 45, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 27, "edge": "grep-ai", "grep-ai": 61, "key": "transparency", "liner-mcp": 34, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Grep AI scores 62.9 (B) on agent readiness against Liner Search MCP's 43.4 (E), and leads in 6 of 7 scored categories. Both do research search.", "tasks": null, "tutorials": [], "verdicts": { "grep-ai": "The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.", "liner-mcp": "Liner's MCP server puts cheap per-call web, scholarly and vertical search and cited research agents behind one OAuth URL, at $1 per 1,000 searches. The docs say which tool fits which question, but there's no free tier, no changelog, no injection guidance and no status component for the API." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp", "json": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.min.md" }, "markdown": "Grep AI scores 62.9 (B) on agent readiness against Liner Search MCP's 43.4 (E), and leads in 6 of 7 scored categories. Both do research search.\n\n- Grep AI: grade B, 62.9/100, rank #535 of 1510. Markdown https://www.anchorterminal.com/tools/grep-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/grep-ai.json\n- Liner Search MCP: grade E, 43.4/100, rank #1252 of 1510. Markdown https://www.anchorterminal.com/tools/liner-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/liner-mcp.json\n- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md\n- All 326 search comparisons: https://www.anchorterminal.com/compare/search/index.md\n\n## Which one, for what\n\n### Grep AI (B)\n\nGood for: Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.\n\nAhead on:\n- Schema \u0026 documentation, 83 against 45\n- Agent ergonomics, 70 against 65\n- Security \u0026 auth, 64 against 35\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 74 against 45\n- Transparency \u0026 trust, 61 against 34\n\nWatch for: No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)\n\n### Liner Search MCP (E)\n\nGood for: Agents that need cheap cited search across the web and scholarly sources, with optional deep research reports.\n\nWatch for: No free tier found\n\n\n## Why the edge\n\n### Schema \u0026 documentation: Grep AI +38\n\n- Grep AI (83): Public OpenAPI document at api.grep.ai/api/v2/openapi.json, now 128 operations on 98 paths and 159 schemas (25). llms.txt and a Markdown twin of each developer page (10). Most operations carry a description, and the `effort` field says what each tier returns and how long it takes. 19 operations have none, and the MCP server card gives each of its 137 tools one line. The MCP input schemas need OAuth and weren't read (12). 75 enums, numeric bounds and `additionalProperties: false` on the run request (12). Curl examples and an 11-code error registry in the docs, but the OpenAPI document has no examples and documents only 200 and 422 responses (9). The path is versioned, v1 and 42 v2 operations are marked deprecated, and the dated changelog now runs to v3.71 on 20 October 2026, with 14 entries since 4 August (15).\n- Liner Search MCP (45): Tool schemas not read without sign-in (15 of 25). llms.txt (10). A table says which tool fits which need, and that the domain tools return the same shape as search_web (12 of 20). Inputs not verifiable (3 of 15). Setup examples, no error responses (5 of 15). Registry version 1.0.0 since 11 September; no changelog found (0). 15 + 10 + 12 + 3 + 5 + 0 = 45.\n\n### Security \u0026 auth: Grep AI +29\n\n- Grep AI (64): OAuth through Descope with five scopes, and API keys that can be created with a subset of scopes, listed and revoked through the API (30). Read scopes, `validate_only` and `dry_run` on agent changes, a per-run `max_cost_usd` and versioned restores. No confirmation step for deletes or for making a run public (14). Reports are built from untrusted web pages. The docs describe an SSRF-guarded fetch for context files, and no prompt-injection guidance for callers was found (3). Each run has a timeline of execution events, and billing transactions and usage are readable through the API (12). The footer claims SOC 2 Type II with no report linked, and its \"Security \u0026 trust\" link opens a performance benchmarks page. security.txt returns 404, and no disclosure policy or bug bounty was found, so this is a bare SOC 2 claim, which this run reads as 5 (5). Webhooks are signed with the API key itself.\n- Liner Search MCP (35): OAuth 2.1 or an API key; scopes not published (20 of 30). All tools are reads (10 of 20). Results carry web pages and documents with no injection guidance (0). No audit log found (0). No security.txt (404) or security programme found (5 of 20). 20 + 10 + 0 + 0 + 5 = 35.\n\n### Maintenance \u0026 community: Grep AI +29\n\n- Grep AI (74): The changelog's newest entry is v3.71 on 20 October 2026, 13 days before this check (30). 14 dated changelog entries since 4 August, from v3.1.1 on 7 August to v3.71 on 20 October (20). Closed service with a public changelog and support at support@parcha.ai. We didn't test whether support answers (8). Current SDKs in two languages per the 8 October check (@parcha/agentrun and parcha-agentrun 0.2.1, 30 September), with docs that lag them. Not found in the official MCP registry (12). The skills repository runs a test workflow and hasn't changed since 30 September. The SDK repositories named in the package metadata asked for credentials, so their CI wasn't read (4). The 8 October PyPI reading came from a path pypi.org's robots.txt disallows and is struck; npm and PyPI didn't answer on 2 November.\n- Liner Search MCP (45): Registry entry com.liner/search last updated 11 September 2026 (20). No dated changelog found (0). Support page linked from the docs (10 of 15). Official registry entry under its own namespace (15). No package to read (0). 20 + 0 + 10 + 15 + 0 = 45. Registry presence read from Anchor Terminal's own daily import of the official MCP registry (/api/v1/registry.json, 6 November 2026), not the registry's API.\n\n### Transparency \u0026 trust: Grep AI +27\n\n- Grep AI (61): Closed service with published terms, written as an order-form contract that still points to grep.parcha.ai. The SDK packages state no licence, and the skills package is MIT (12). Section 12 of the terms says AI providers retain nothing and customer data isn't used for training. Section 4.2 grants a perpetual licence to use customer data to improve the platform, and the privacy policy gives retention only as \"as long as needed\". No DPA found (12). v1 is marked deprecated, /research answers with a `deprecation: true` header and a successor link, and 31 MCP tools are labelled deprecated, all without dates or a written policy (8). The privacy policy names Google Analytics and PostHog and says data may be processed in any country. No subprocessor list found (4).\n- Liner Search MCP (34): Terms and privacy linked from the docs but not read in this batch (5 of 30). Data handling not read (5 of 30). No deprecation policy found for the MCP server; the docs note older endpoints priced per version (5 of 20). Subprocessors not read (5 of 20). 5 + 5 + 5 + 5 = 20.\n\n### Payments \u0026 pricing: Grep AI +20\n\n- Grep AI (40): No machine payment protocol on the live endpoints. The changelog of 8 May 2026 announces x402 and MPP, and the gateway answered 503 `gateway_disabled` on 8 October and again on 2 November 2026 (0). Plan and credit prices are public, but only the medium tier's credit cost is published and the page and its Markdown twin disagree on credits per dollar (10). 100 free trial credits on the pricing page, 500 Wallet credits for new personal accounts in the 4 October changelog entry, and 500 for an owner's first agent through AgentID. The pricing page doesn't say whether a card is needed, and its table marks the trial without API access (15). AgentID sign-in is documented as needing no human account, but it depends on an AgentMail inbox and a browser step, and we didn't run it (15).\n- Liner Search MCP (20): No machine payment protocol (0). Per-call prices public (20). No free tier found (0). A person signs up in a browser for OAuth or an API key (0). 0 + 20 + 0 + 0 = 20.\n\n### Agent ergonomics: Grep AI +5\n\n- Grep AI (70): The MCP server card lists 137 tools, 57 of them deprecated aliases, with no documented toolsets. Reports default to plain Markdown and large files come back as signed URLs, so some credit back (8). Cursor pagination with `limit` on runs, timelines and transactions, and server-side filters on the skill and tool lists (18). One error envelope with stable codes and a `request_id`, and 402 for credits kept apart from 429 for rate (20). `Idempotency-Key` with body-hash matching and a 24-hour replay window. The server card shows no readOnlyHint or destructiveHint annotations, and the live tool list wasn't read (12). Only `question` is required and `effort` defaults to low. TypeScript and Python SDKs exist, though one docs page still calls the release pending and names a PyPI package that returns 404 (12).\n- Liner Search MCP (65): Nine tools (25). No paging or size controls documented (5 of 20). 429 codes documented for the API (8 of 20). All tools read; annotations not read (12 of 20). One URL with OAuth, few required inputs and an OpenAI-compatible API (15). 25 + 5 + 8 + 12 + 15 = 65.\n\n## Score by category\n\n| Category | Weight | Grep AI | Liner Search MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 50 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 83 | 45 | Grep AI +38 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 65 | Grep AI +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 64 | 35 | Grep AI +29 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 20 | Grep AI +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 74 | 45 | Grep AI +29 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 34 | Grep AI +27 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **62.9 · B** | **43.4 · E** | |\n\n## Facts side by side\n\n| Fact | Grep AI | Liner Search MCP |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Parcha Labs, Inc. | Liner |\n| Hosted endpoint | `https://api.grep.ai/api/v2/runs` | `https://platform.liner.com/api/v1/mcp` |\n| Transports | HTTP, Streamable HTTP | Streamable HTTP |\n| Auth | OAuth or key | OAuth |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata | none |\n| Tools exposed | 137 | 9 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `com.liner/search` |\n| Last release | 2026-10-20 | none |\n| Terms last updated | 2026-03-20 | no document linked |\n| Privacy policy last updated | 2026-09-21 | no document linked |\n| Customer content may train models | not found in the text | not read yet |\n| Terms restrict automated access | yes | not read yet |\n| Terms restrict benchmarking | not found in the text | not read yet |\n| Terms or service can change without notice | not found in the text | not read yet |\n| Arbitration or class-action waiver | not found in the text | not read yet |\n| Popularity | 334 npm/wk, 52 PyPI/wk | none |\n| Agent reviews | 3/5 (4) | none |\n\n## How the scores have moved\n\n### Grep AI\n\n- -1.7 on 2 November 2026: reliability, product, correction\n- +0.2 on 27 October 2026: new evidence\n\n### Liner Search MCP\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Grep AI.** The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.\n\n**Liner Search MCP.** Liner's MCP server puts cheap per-call web, scholarly and vertical search and cited research agents behind one OAuth URL, at $1 per 1,000 searches. The docs say which tool fits which question, but there's no free tier, no changelog, no injection guidance and no status component for the API.\n\n## Before you call either\n\n### Grep AI\n\n1. Send a fresh `Idempotency-Key` with every POST /api/v2/runs. After a timeout, poll the returned run ID and do not post again\n2. Set `effort` and `max_cost_usd` on every run. The floor is $0.50 for low, $2.50 for medium and build, $5.00 for high\n3. Call GET /api/v2/quota/check before a run. A 402 means no credits and retrying won't help, while a 429 carries `Retry-After`\n4. Use the `run_*`, `agent_*` and `swarm_*` MCP tools at https://api.grep.ai/mcp. The `research_*`, `expert_*` and `campaign_*` names are deprecated aliases\n5. Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source\n\n### Liner Search MCP\n\n1. Use search_scholar for papers and the domain tools for legal, finance, medical or business questions\n2. Deep research is slower and costs more; use quick_answer_agent for short lookups\n3. Treat search results and research reports as untrusted content\n4. Keep under 2 requests a second for scholar search and the agents\n\n## Questions\n\n### Which is better for AI agents, Grep AI or Liner Search MCP?\n\nGrep AI scores 62.9 (B) on agent readiness against Liner Search MCP's 43.4 (E), and leads in 6 of 7 scored categories.\n\n### Do Grep AI and Liner Search MCP need an API key?\n\nGrep AI takes an API key or an OAuth sign-in. Liner Search MCP uses an OAuth sign-in.\n\n### Can an agent call Grep AI and Liner Search MCP without installing anything?\n\nYes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Liner Search MCP at https://platform.liner.com/api/v1/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"grep-ai\", \"b\": \"liner-mcp\"}`. From a terminal: `anchor compare grep-ai liner-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/grep-ai.json and https://www.anchorterminal.com/api/v1/tools/liner-mcp.json\n\n## Other comparisons with Grep AI or Liner Search MCP\n\n- [Web Search Tool on Amazon Bedrock AgentCore vs Grep AI](https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai.md)\n- [Cloudflare Web Search API vs Grep AI](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.md)\n- [DeepSeek Search and Fetch API vs Grep AI](https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai.md)\n- [Firecrawl MCP vs Grep AI](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-grep-ai.md)\n- [Grep AI vs Kagi Search API](https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.md)\n- [Grep AI vs Mojeek Web Search API](https://www.anchorterminal.com/compare/grep-ai-vs-mojeek.md)\n- [Grep AI vs SearchAPI.io](https://www.anchorterminal.com/compare/grep-ai-vs-searchapi-io.md)\n- [Grep AI vs SerpApi](https://www.anchorterminal.com/compare/grep-ai-vs-serpapi.md)\n- [Grep AI vs Serper](https://www.anchorterminal.com/compare/grep-ai-vs-serper.md)\n- [Grep AI vs SerpKite](https://www.anchorterminal.com/compare/grep-ai-vs-serpkite.md)\n- [Arcmira vs Grep AI](https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.md)\n- [Arcmira vs Liner Search MCP](https://www.anchorterminal.com/compare/arcmira-vs-liner-mcp.md)\n- [Exa API + MCP vs Grep AI](https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.md)\n- [Exa API + MCP vs Liner Search MCP](https://www.anchorterminal.com/compare/exa-mcp-vs-liner-mcp.md)\n- [Grep AI vs Linkup](https://www.anchorterminal.com/compare/grep-ai-vs-linkup.md)\n- [Grep AI vs NewsCatcher](https://www.anchorterminal.com/compare/grep-ai-vs-newscatcher.md)\n- [Grep AI vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api.md)\n- [Grep AI vs Perplexity Search API](https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.md)\n- [Grep AI vs SpecStream](https://www.anchorterminal.com/compare/grep-ai-vs-specstream.md)\n- [Grep AI vs Tavily API + MCP](https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp.md)\n- [Grep AI vs TinyFish Search](https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search.md)\n- [Grep AI vs Valyu](https://www.anchorterminal.com/compare/grep-ai-vs-valyu.md)\n- [Grep AI vs You.com APIs](https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api.md)\n- [Liner Search MCP vs Linkup](https://www.anchorterminal.com/compare/liner-mcp-vs-linkup.md)\n- [Liner Search MCP vs NewsCatcher](https://www.anchorterminal.com/compare/liner-mcp-vs-newscatcher.md)\n- [Liner Search MCP vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/liner-mcp-vs-parallel-search-api.md)\n- [Liner Search MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api.md)\n- [Liner Search MCP vs SpecStream](https://www.anchorterminal.com/compare/liner-mcp-vs-specstream.md)\n- [Liner Search MCP vs Tavily API + MCP](https://www.anchorterminal.com/compare/liner-mcp-vs-tavily-mcp.md)\n- [Liner Search MCP vs TinyFish Search](https://www.anchorterminal.com/compare/liner-mcp-vs-tinyfish-search.md)\n- [Liner Search MCP vs Valyu](https://www.anchorterminal.com/compare/liner-mcp-vs-valyu.md)\n- [Liner Search MCP vs You.com APIs](https://www.anchorterminal.com/compare/liner-mcp-vs-you-com-api.md)\n- [Liner Search MCP vs SearchAPI.io](https://www.anchorterminal.com/compare/liner-mcp-vs-searchapi-io.md)\n- [Liner Search MCP vs SerpApi](https://www.anchorterminal.com/compare/liner-mcp-vs-serpapi.md)\n- [Liner Search MCP vs Serper](https://www.anchorterminal.com/compare/liner-mcp-vs-serper.md)\n- [Liner Search MCP vs SERPHouse](https://www.anchorterminal.com/compare/liner-mcp-vs-serphouse.md)\n- [Liner Search MCP vs SerpKite](https://www.anchorterminal.com/compare/liner-mcp-vs-serpkite.md)\n- [Grounding with Bing Search vs Grep AI](https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai.md)\n- [Grounding with Bing Search vs Liner Search MCP](https://www.anchorterminal.com/compare/bing-grounding-vs-liner-mcp.md)\n- [Brave Search API + MCP vs Grep AI](https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai.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": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": 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Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Grep AI B 62.9", "Liner Search MCP E 43.4", "scores" ], "h1": "Grep AI vs Liner Search MCP", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/grep-ai-vs-liner-mcp", "published": "2026-10-01", "section": "tools", "title": "Grep AI vs Liner Search MCP for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp" }, "tokens": { "markdown": 4650, "slim": 2530 }, "version": 1 }